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#waterresources — Public Fediverse posts

Live and recent posts from across the Fediverse tagged #waterresources, aggregated by home.social.

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  1. 💧🌏 Greg Cocks @[email protected] ·

    Busy Beavers - The Turbidity Signature Of Ecosystem Engineers At Work
    --
    doi.org/10.1002/hyp.70661 <-- shared paper
    --
    H/T @alan Puttock
    “Beavers are the quintessential ecosystem engineers. In slow-flowing streams, they create complex wetlands with ponds by building dams and canals that can positively impact biodiversity, hydrology and water quality. These activities can interchangeably capture or release sediment along the watercourse. To date this has not been quantified at the resolution of rainfall events or beaver activity. This study used 15-min frequency, sustained monitoring upstream and downstream of a newly establishing beaver wetland to measure episodic changes in water turbidity at an event resolution. Monitoring showed no significant differences between upstream and downstream turbidity over 160 days when the first pair of beavers, known not to be building dams or canals, were resident. Shortly after introduction of another beaver pair, however, dam building, burrows and canal excavations were quickly observed, resulting in the creation of a complex beaver wetland between 2021 and 2024. Monitoring over 375 days during this period showed significant differences. Downstream turbidity was significantly higher overall than upstream: 13.1 Nephelometric Turbidity Units (NTU) compared to 4.2 NTU. Stochastic spikes in downstream turbidity during the study period not recorded upstream were associated with dam building and burrowing. Overall, there was no significant difference in turbidity loads, which was at least partially explained by a reduction in discharge downstream, particularly in higher flows, during the dam building period. This demonstrates a complex system with the trapping of influent sediment, the storing of water and the periodic release of beaver wetland sediment leading to net balance in loads. These results help provide context for other studies which have used temporally discrete sampling campaigns rather than continuous high-frequency monitoring. They provide a unique insight into the downstream impacts of a rapidly developing beaver wetland over its first three and a half years in a landscape that hasn't had beavers for over 400 years…"
    #hydromorphic #water #hydrology #dam #beaverdam #waterquality #biodiversity #ecology #benefits #NatureBasedSolutions #Wetlands #Ecology #Biodiversity #EnvironmentalScience #Wildlife #Ecosystem #bioviversity #conservation #restoration #landscaperecovery #floodmanagement #FloodMitigation #flooding #energy #floodrisk #sustainability #wetlands #hydrography #dams #impoundment #deadwood #waterresources #landscapeengineer #benefits #vegetation #ecology #ecosystem #riversystemsstabilisation #naturalwaterregulation #resilience #valleysreborn #fisheries #invertebrates #extremeweather #floodflows #sediment #baseflow #drought #landmanagement #naturalsystems #landuse #monitoring #spatialanalysis #spatiotemporal

    #hydromorphic #water #hydrology #dam #beaverdam #waterquality
  2. 💧🌏 Greg Cocks @GregCocks ·

    Busy Beavers - The Turbidity Signature Of Ecosystem Engineers At Work
    --
    doi.org/10.1002/hyp.70661 <-- shared paper
    --
    H/T @alan Puttock
    “Beavers are the quintessential ecosystem engineers. In slow-flowing streams, they create complex wetlands with ponds by building dams and canals that can positively impact biodiversity, hydrology and water quality. These activities can interchangeably capture or release sediment along the watercourse. To date this has not been quantified at the resolution of rainfall events or beaver activity. This study used 15-min frequency, sustained monitoring upstream and downstream of a newly establishing beaver wetland to measure episodic changes in water turbidity at an event resolution. Monitoring showed no significant differences between upstream and downstream turbidity over 160 days when the first pair of beavers, known not to be building dams or canals, were resident. Shortly after introduction of another beaver pair, however, dam building, burrows and canal excavations were quickly observed, resulting in the creation of a complex beaver wetland between 2021 and 2024. Monitoring over 375 days during this period showed significant differences. Downstream turbidity was significantly higher overall than upstream: 13.1 Nephelometric Turbidity Units (NTU) compared to 4.2 NTU. Stochastic spikes in downstream turbidity during the study period not recorded upstream were associated with dam building and burrowing. Overall, there was no significant difference in turbidity loads, which was at least partially explained by a reduction in discharge downstream, particularly in higher flows, during the dam building period. This demonstrates a complex system with the trapping of influent sediment, the storing of water and the periodic release of beaver wetland sediment leading to net balance in loads. These results help provide context for other studies which have used temporally discrete sampling campaigns rather than continuous high-frequency monitoring. They provide a unique insight into the downstream impacts of a rapidly developing beaver wetland over its first three and a half years in a landscape that hasn't had beavers for over 400 years…"

    #hydromorphic #water #hydrology #dam #beaverdam #waterquality
  3. 💧🌏 Greg Cocks @[email protected] ·

    Impact Of Reservoir Storage On Propagation From Meteorological To Hydrological Drought
    --
    doi.org/10.1016/j.jhydrol.2026 <-- shared paper
    --
    H/T @DrAjayGupta | Post Doctoral Fellow, IIT Bombay | Ph.D. in Hydrology, IIT Roorkee | Commonwealth Split-site Fellow, University of Birmingham I M.Tech in Water Resources Engineering, NIT Silchar | B.E. in Civil Engineering, PCE Nagpur.
    “🌍 Why is this important?
    While reservoirs are widely recognized for mitigating drought impacts, their role in controlling how drought propagates through the hydrological cycle has remained largely unexplored. In this study, [the authors] investigate how reservoir storage influences the transition of drought from meteorological to agricultural to reservoir to streamflow drought across the semi-arid Krishna River Basin, India.
    🔍 THIS STUDY ADDRESSES TWO KEY RESEARCH QUESTIONS:
    ✅ How do drought propagation time (initiation, peak, and termination) change from meteorological to agricultural, reservoir, and streamflow droughts across different timescales and threshold values?
    ✅ How does reservoir storage influence drought propagation between upstream and downstream reservoirs using the Downstreamness concept?
    📌 KEY FINDINGS
    🔹 Drought propagation differs substantially across drought types because each component of the hydrological system responds at different rates.
    🔹 Reservoirs significantly delay the propagation of drought by buffering water deficits, particularly between agricultural and streamflow drought.
    🔹 Mild and moderate upstream reservoir droughts rarely propagate downstream, whereas severe upstream droughts consistently transmit downstream, leading to longer duration, greater severity, and delayed onset.
    🔹 The downstreamness analysis reveals dynamic shifts in water storage between upstream and downstream reservoirs throughout drought development and recovery, providing valuable insights for reservoir operation and basin-scale drought management…”
    --
    “HIGHLIGHTS
    • Reservoir storage impact on drought propagation from meteorological-to-hydrological drought.
    • Drought propagation timeframe: initiation, peak and termination are checked.
    • Impact assessment using hydrological connection: upstream to downstream reservoirs.
    • Severe upstream droughts propagate downstream with increased duration and severity.
    • During drought periods water-storage concentration shifts from downstream to upstream..."
    #Drought #DroughtPropagation #Reservoirs #WaterResources #WaterManagement #RiverBasinManagement #KrishnaRiverBasin #Downstreamness #India #climatechange #reservoir #storage #hydrology #water #hydrologiccycle #watersecurity #planning #policy #KrishnaRiver #weather #climate #metrology #agriculture #farming #streamflow #model #modeling #spatiotemporal #spatialanalysis

    #drought #droughtpropagation #reservoirs #waterresources #watermanagement #riverbasinmanagement
  4. 💧🌏 Greg Cocks @GregCocks ·

    Impact Of Reservoir Storage On Propagation From Meteorological To Hydrological Drought
    --
    doi.org/10.1016/j.jhydrol.2026 <-- shared paper
    --
    H/T @DrAjayGupta | Post Doctoral Fellow, IIT Bombay | Ph.D. in Hydrology, IIT Roorkee | Commonwealth Split-site Fellow, University of Birmingham I M.Tech in Water Resources Engineering, NIT Silchar | B.E. in Civil Engineering, PCE Nagpur.
    “🌍 Why is this important?
    While reservoirs are widely recognized for mitigating drought impacts, their role in controlling how drought propagates through the hydrological cycle has remained largely unexplored. In this study, [the authors] investigate how reservoir storage influences the transition of drought from meteorological to agricultural to reservoir to streamflow drought across the semi-arid Krishna River Basin, India.
    🔍 THIS STUDY ADDRESSES TWO KEY RESEARCH QUESTIONS:
    ✅ How do drought propagation time (initiation, peak, and termination) change from meteorological to agricultural, reservoir, and streamflow droughts across different timescales and threshold values?
    ✅ How does reservoir storage influence drought propagation between upstream and downstream reservoirs using the Downstreamness concept?
    📌 KEY FINDINGS
    🔹 Drought propagation differs substantially across drought types because each component of the hydrological system responds at different rates.
    🔹 Reservoirs significantly delay the propagation of drought by buffering water deficits, particularly between agricultural and streamflow drought.
    🔹 Mild and moderate upstream reservoir droughts rarely propagate downstream, whereas severe upstream droughts consistently transmit downstream, leading to longer duration, greater severity, and delayed onset.
    🔹 The downstreamness analysis reveals dynamic shifts in water storage between upstream and downstream reservoirs throughout drought development and recovery, providing valuable insights for reservoir operation and basin-scale drought management…”
    --
    “HIGHLIGHTS
    • Reservoir storage impact on drought propagation from meteorological-to-hydrological drought.
    • Drought propagation timeframe: initiation, peak and termination are checked.
    • Impact assessment using hydrological connection: upstream to downstream reservoirs.
    • Severe upstream droughts propagate downstream with increased duration and severity.
    • During drought periods water-storage concentration shifts from downstream to upstream..."

    #drought #droughtpropagation #reservoirs #waterresources #watermanagement #riverbasinmanagement
  5. Adam Trickett :debian: :kde: @drajt ·

    has just introduced a total water use in the garden ban. You can't even water your garden with your own water stored in your own water reservoir.

    Farmers are still free to irrigate rural roads with tap water though...

    For those not in France, Brittany is famously wet and the rest of France makes fun of how wet and rainy it is here.

    #saintmalo #stmalo #climatechange #waterresources #france #brittany
  6. Adam Trickett :debian: :kde: @[email protected] ·

    #SaintMalo has just introduced a total water use in the garden ban. You can't even water your garden with your own water stored in your own water reservoir.

    Farmers are still free to irrigate rural roads with tap water though...

    For those not in France, Brittany is famously wet and the rest of France makes fun of how wet and rainy it is here.

    #saintmalo #stmalo #climatechange #waterresources #france #brittany #bretagne

    #saintmalo #stmalo #climatechange #waterresources #france #brittany
  7. All for Gardening @[email protected] ·

    Across England, gardeners vow to flout hosepipe bans as anger shifts to leaks, AI data centers allforgardening.com/1899377/ac #AffinityWater #AnglianWater #england #garden #gardener #gardening #HosepipeBan #HosepipeBans #SouthEastWater #SouthernWater #ThamesWater #WaterCompanies #WaterResources #WelshWater

    #affinitywater #anglianwater #england #garden #gardener #gardening
  8. All for Gardening @[email protected] ·

    Across England, gardeners vow to flout hosepipe bans as anger shifts to leaks, AI data centers allforgardening.com/1899377/ac #AffinityWater #AnglianWater #england #garden #gardener #gardening #HosepipeBan #HosepipeBans #SouthEastWater #SouthernWater #ThamesWater #WaterCompanies #WaterResources #WelshWater

    #affinitywater #anglianwater #england #garden #gardener #gardening
  9. RaymondPierreL3 @[email protected] ·

    Consider signing this petition to call for a moritorium on large data centre builds in Australia. At least until we get the policy right and legal instruments are in place. Last thing we need is a dryer continent and higher energy prices. #GenAI can take the back seat on this Australian bus.

    c.org/kSWvYBPjHT

    #AusPol #DataCenters #GenAISlop #WaterResources #EnegryResources #AIlegislature

    #genai #auspol #datacenters #genaislop #waterresources #enegryresources
  10. RaymondPierreL3 @[email protected] ·

    Consider signing this petition to call for a moritorium on large data centre builds in Australia. At least until we get the policy right and legal instruments are in place. Last thing we need is a dryer continent and higher energy prices. #GenAI can take the back seat on this Australian bus.

    c.org/kSWvYBPjHT

    #AusPol #DataCenters #GenAISlop #WaterResources #EnegryResources #AIlegislature

    #genai #auspol #datacenters #genaislop #waterresources #enegryresources
  11. 💧🌏 Greg Cocks @[email protected] ·

    Global Performance of #RemoteSensing Based and Reanalysis-Driven Models to Estimate Open Water Evaporation
    --
    doi.org/10.1029/2025WR042363
    --
    “ABSTRACT: Evaporation plays an essential role in the water cycle, influencing local and regional climates while directly impacting water availability in lakes. However, directly measuring evaporation over water bodies remains challenging due to the high costs of installing and maintaining the required in situ instrumentation. Although several remote sensing algorithms have been providing evaporation estimates, the lack of a global validation hinders our understanding of their relative uncertainties and performances across different regions. Here, [they] analyze[d] the performance of a suite of models that leverage satellite data and meteorological reanalysis to estimate evaporation over lakes worldwide. [They] compare[d] three remote sensing-based models, one reanalysis-driven model and one ensemble approach, using in situ observations from 27 lakes representing a diverse range of geographic and climatic regions. [Their] results demonstrate that, overall, the ensemble outperformed any individual model in terms of accuracy, with a RMSE and a bias of 1.3 and 0.3 mm/day, respectively. These findings highlight the benefits of using an ensemble approach to estimate open water evaporation with satellite-based models at the global scale, leveraging the unique strengths of each model. For the individual models, differences in the representation of heat storage changes and advection effects led to lower values of RMSE and bias, depending on the location and depth of the lakes. This study sets the path for future improvement of open water evaporation algorithms globally, while remote sensing techniques are proven satisfactory to monitoring of water loss in lakes globally, an essential step toward effective large-scale water resources management.
    PLAIN LANGUAGE SUMMARY: Water loss through evaporation in lakes and reservoirs directly affects water availability, which highlights the need to monitor these losses. However, measuring evaporation in situ is challenging and expensive. An alternative is to estimate evaporation using remote-sensing models and compare these estimates with in-situ data to verify their accuracy. Here, [they] evaluated four models and their ensemble (the models' mean value) using measurements from 27 lakes and reservoirs worldwide. [They] found that the ensemble presented higher accuracy and consistency than any individual model because it benefits from the strengths of each model. This approach can guide future improvements in estimating open-water evaporation, which is essential for large-scale water-resource management…”
    #global #mapping #earthobservation #GIS #spatial #spatialanalysis #spatiotemporal #model #modeling #water #hydrology #surfacewater #waterbody #lake #reservoir #evaporation #evapotranspiration #watercycle #weather #meteorology #usecase #waterresources #watermanagement #waterloss #regional #estimate #policy #planning #instrumentation #comparasion

    #remotesensing #global #mapping #earthobservation #gis #spatial
  12. 💧🌏 Greg Cocks @GregCocks ·

    Global Performance of Based and Reanalysis-Driven Models to Estimate Open Water Evaporation
    --
    doi.org/10.1029/2025WR042363
    --
    “ABSTRACT: Evaporation plays an essential role in the water cycle, influencing local and regional climates while directly impacting water availability in lakes. However, directly measuring evaporation over water bodies remains challenging due to the high costs of installing and maintaining the required in situ instrumentation. Although several remote sensing algorithms have been providing evaporation estimates, the lack of a global validation hinders our understanding of their relative uncertainties and performances across different regions. Here, [they] analyze[d] the performance of a suite of models that leverage satellite data and meteorological reanalysis to estimate evaporation over lakes worldwide. [They] compare[d] three remote sensing-based models, one reanalysis-driven model and one ensemble approach, using in situ observations from 27 lakes representing a diverse range of geographic and climatic regions. [Their] results demonstrate that, overall, the ensemble outperformed any individual model in terms of accuracy, with a RMSE and a bias of 1.3 and 0.3 mm/day, respectively. These findings highlight the benefits of using an ensemble approach to estimate open water evaporation with satellite-based models at the global scale, leveraging the unique strengths of each model. For the individual models, differences in the representation of heat storage changes and advection effects led to lower values of RMSE and bias, depending on the location and depth of the lakes. This study sets the path for future improvement of open water evaporation algorithms globally, while remote sensing techniques are proven satisfactory to monitoring of water loss in lakes globally, an essential step toward effective large-scale water resources management.
    PLAIN LANGUAGE SUMMARY: Water loss through evaporation in lakes and reservoirs directly affects water availability, which highlights the need to monitor these losses. However, measuring evaporation in situ is challenging and expensive. An alternative is to estimate evaporation using remote-sensing models and compare these estimates with in-situ data to verify their accuracy. Here, [they] evaluated four models and their ensemble (the models' mean value) using measurements from 27 lakes and reservoirs worldwide. [They] found that the ensemble presented higher accuracy and consistency than any individual model because it benefits from the strengths of each model. This approach can guide future improvements in estimating open-water evaporation, which is essential for large-scale water-resource management…”

    #remotesensing #global #mapping #earthobservation #gis #spatial
  13. 💧🌏 Greg Cocks @[email protected] ·

    Can Himalayan Crops Help Secure The Future Of Food?
    (Exploring how genomic diversity, traditional crops, and regional cooperation can strengthen climate resilience and food security across the Hindu Kush Himalaya [HKH])
    --
    substack.com/home/post/p-20744 <-- shared technical post
    --
    openlibrary.substack.com/ <-- shared Substack, “Open Library on Green Economy”
    --
    adaptationwithoutborders.org/k <-- shared technical article, “Shifting cooperation in the [HKH]”
    --
    icimod.org/who-we-are/the-hind <-- background on the HKH, International Centre for Integrated Mountain Development (ICIMOD)
    --
    doi.org/10.48130/cas-0026-0003 <-- shared paper
    --
    [not at all my technical area - but fascinating, including the spatial component #alldataisspatial]
    H/T @jeevan Labh
    “As we navigate the intensifying impacts of the 2026 El Niño, the vulnerability of our global food systems require careful evaluation. With this year’s erratic weather patterns driving severe, prolonged droughts in some regions and unseasonal, devastating floods in others, the climate crisis is proving that it is not a distant threat; it is happening right now, in our fields and on our plates.
    This crisis is more visible in the Hindu Kush Himalaya (HKH) region. Often called the “water tower of Asia,” this vast mountain range sustains 240 million people across eight countries and provides essential ecosystem services to nearly 2 billion people downstream. When glaciers melt at accelerated rates and monsoons become unpredictable, the narrative often focuses solely on the mountain communities. But the truth is much broader: a disrupted harvest in the high hills of Nepal or Bhutan creates a domino effect. It leads to displaced populations, reduced agricultural output flowing into the Indus, Ganges, and Brahmaputra basins, and ultimately, skyrocketing food prices for families living in the sprawling downstream plains.
    The climate crisis respects no borders and recognizes no difference between altitude and sea level. Because this problem affects us all, the solution must protect us all. Fortunately, the means to overcome this challenge are already in our hands, locked within the ancient seeds of the mountains…”
    ## #GreenEconomy #economy #monoculture #agriculture #farming #crop #cropland #HinduKushHimalaya #himalaya #mountain #HKH #spatial #mapping #elevation #climatechange #foodsecurity #food #extremeweather #weather #ElNiño #drought #rainfall #precipitation #snowmelt #climatecrisis #mountainrange #water #hydrology #ecosystem #glacier #moonsoons #community #harvest #Nepal #Bhutan #watersheds #watersecurity #risk #hazard #waterresources #genes #genomicdiversity #cooperation

    #alldataisspatial #greeneconomy #economy #monoculture #agriculture #farming
  14. 💧🌏 Greg Cocks @GregCocks ·

    Can Himalayan Crops Help Secure The Future Of Food?
    (Exploring how genomic diversity, traditional crops, and regional cooperation can strengthen climate resilience and food security across the Hindu Kush Himalaya [HKH])
    --
    substack.com/home/post/p-20744 <-- shared technical post
    --
    openlibrary.substack.com/ <-- shared Substack, “Open Library on Green Economy”
    --
    adaptationwithoutborders.org/k <-- shared technical article, “Shifting cooperation in the [HKH]”
    --
    icimod.org/who-we-are/the-hind <-- background on the HKH, International Centre for Integrated Mountain Development (ICIMOD)
    --
    doi.org/10.48130/cas-0026-0003 <-- shared paper
    --
    [not at all my technical area - but fascinating, including the spatial component ]
    H/T @jeevan Labh
    “As we navigate the intensifying impacts of the 2026 El Niño, the vulnerability of our global food systems require careful evaluation. With this year’s erratic weather patterns driving severe, prolonged droughts in some regions and unseasonal, devastating floods in others, the climate crisis is proving that it is not a distant threat; it is happening right now, in our fields and on our plates.
    This crisis is more visible in the Hindu Kush Himalaya (HKH) region. Often called the “water tower of Asia,” this vast mountain range sustains 240 million people across eight countries and provides essential ecosystem services to nearly 2 billion people downstream. When glaciers melt at accelerated rates and monsoons become unpredictable, the narrative often focuses solely on the mountain communities. But the truth is much broader: a disrupted harvest in the high hills of Nepal or Bhutan creates a domino effect. It leads to displaced populations, reduced agricultural output flowing into the Indus, Ganges, and Brahmaputra basins, and ultimately, skyrocketing food prices for families living in the sprawling downstream plains.
    The climate crisis respects no borders and recognizes no difference between altitude and sea level. Because this problem affects us all, the solution must protect us all. Fortunately, the means to overcome this challenge are already in our hands, locked within the ancient seeds of the mountains…”
    ##

    #alldataisspatial #greeneconomy #economy #monoculture #agriculture #farming
  15. ABC Feeds @[email protected] ·

    AI company plan to use irrigation water disappears after ABC question
    By Ashleigh Barraclough

    Data centre builder Firmus Technologies posts to its website a statement, since removed, indicating its intention to get some of its cooling water from the state-owned irrigation system, adding "but we do not want to highlight this yet, as they are yet to agree".

    abc.net.au/news/2026-07-22/tas

    #AI #WaterResources #AIEthics #Utilities #StateandTerritoryGovernment #AshleighBarraclough

    #ai #waterresources #aiethics #utilities #stateandterritorygovernment #ashleighbarraclough
  16. ABC Feeds @[email protected] ·

    AI company plan to use irrigation water disappears after ABC question
    By Ashleigh Barraclough

    Data centre builder Firmus Technologies posts to its website a statement, since removed, indicating its intention to get some of its cooling water from the state-owned irrigation system, adding "but we do not want to highlight this yet, as they are yet to agree".

    abc.net.au/news/2026-07-22/tas

    #AI #WaterResources #AIEthics #Utilities #StateandTerritoryGovernment #AshleighBarraclough

    #ai #waterresources #aiethics #utilities #stateandterritorygovernment #ashleighbarraclough
  17. 💧🌏 Greg Cocks @[email protected] ·

    Impact of River Morphology on River–Groundwater Exchange in Braided River Systems
    --
    doi.org/10.1111/gwat.70092 <-- shared paper
    --
    H/T @thomas Wöhling | Professor at TU Dresden
    “Do you like braided rivers? We think they are soooo beautiful. And they are interesting to study as well. Particularly how these complex and transient systems interact with regional aquifers…”
    --
    “Coupled models of two braided rivers with real, pre- and postflood event morphologies are studied for river–groundwater exchange changes…”
    --
    “Braided river systems are an important source for groundwater recharge, but their complex morphology makes river–groundwater exchange fluxes difficult to estimate. Their river channel morphology changes frequently after floods, which has effects on recharge rates that have rarely been studied in the past. This work aims to isolate the effects of changes in braided river morphology on groundwater recharge for two sections of the Wairau River and Waikirikiri River in New Zealand. For each study site, two different river morphology variants of a fully coupled surface water–groundwater model utilizing high-resolution DEMs of river bathymetry before and after a major flood event were set up while keeping parameterization and boundary conditions the same. The models demonstrate that flood-induced morphology changes in braided river systems alter groundwater recharge. [They] identif[ied] features, both simulated and observed, that explain the direction of change. Features that increase groundwater recharge are a larger braidplain aquifer extent and volume, larger wetted area and, specifically, an increase of areas with high exchange rates in locations of larger gradients between braidplain aquifer and regional aquifer. These factors influence groundwater recharge independent of connection (Wairau River) or disconnection (Waikirikiri River) of the system to the regional aquifer, albeit with different magnitudes. An extension of [their] research to other braided rivers is needed to more broadly generalize [their] findings...”
    #NewZealand #river #morphology #braided #Waikirikiri #Wairau #water #hydrology #hydrography #model #modeling #groundwater #aquifer #waterresources #recharge #infiltration #flood #flow #flooding #hydrogeomorphology #exchangefluxes #surfacewater #remotesensing #DEM #elevation #spatialanalysis #GIS #spatial #mapping #change #dynamic #spatiotemporal #bathymetry

    #newzealand #river #morphology #braided #waikirikiri #wairau
  18. 💧🌏 Greg Cocks @GregCocks ·

    Impact of River Morphology on River–Groundwater Exchange in Braided River Systems
    --
    doi.org/10.1111/gwat.70092 <-- shared paper
    --
    H/T @thomas Wöhling | Professor at TU Dresden
    “Do you like braided rivers? We think they are soooo beautiful. And they are interesting to study as well. Particularly how these complex and transient systems interact with regional aquifers…”
    --
    “Coupled models of two braided rivers with real, pre- and postflood event morphologies are studied for river–groundwater exchange changes…”
    --
    “Braided river systems are an important source for groundwater recharge, but their complex morphology makes river–groundwater exchange fluxes difficult to estimate. Their river channel morphology changes frequently after floods, which has effects on recharge rates that have rarely been studied in the past. This work aims to isolate the effects of changes in braided river morphology on groundwater recharge for two sections of the Wairau River and Waikirikiri River in New Zealand. For each study site, two different river morphology variants of a fully coupled surface water–groundwater model utilizing high-resolution DEMs of river bathymetry before and after a major flood event were set up while keeping parameterization and boundary conditions the same. The models demonstrate that flood-induced morphology changes in braided river systems alter groundwater recharge. [They] identif[ied] features, both simulated and observed, that explain the direction of change. Features that increase groundwater recharge are a larger braidplain aquifer extent and volume, larger wetted area and, specifically, an increase of areas with high exchange rates in locations of larger gradients between braidplain aquifer and regional aquifer. These factors influence groundwater recharge independent of connection (Wairau River) or disconnection (Waikirikiri River) of the system to the regional aquifer, albeit with different magnitudes. An extension of [their] research to other braided rivers is needed to more broadly generalize [their] findings...”

    #newzealand #river #morphology #braided #waikirikiri #wairau
  19. 💧🌏 Greg Cocks @[email protected] ·

    Ancient Water Wisdom - The Acequias Of Sierra Nevada, Europe’s Oldest Groundwater System ⛰️
    --
    memolaproject.eu/sierra-nevada <-- shared link to the 𝗠𝗘𝗠𝗢𝗟𝗔 𝗣𝗿𝗼𝗷𝗲𝗰𝘁 page
    --
    regadiohistorico.es/ <-- shared technical page, “Collaborative map of historical irrigation systems in Granada and Almería” / “Mapa colaborativo de regadíos históricos de Granada y Almería”
    --
    youtu.be/-TIUI2KflMk?si=iaSOwV <-- shared video overview, “Participa al Mapa colaborativo de regadíos históricos de Granada y Almería”
    --
    H/T @sofie de Volder | Co-founder TRAQUA
    “[The author has] already discussed ancient water management systems, such as the qanats in Persia and other Eastern countries. In Europe, there are the acequias of the Sierra Nevada in Andalusia, Spain.
    The hand-dug channels date back over 1,000 years to the Moorish era. Networks of canals, aqueducts and cisterns were engineered to capture and transport snowmelt, turning this natural resource into a sustainable water supply for agriculture. The high-altitude ditches had openings, allowing water to infiltrate into fractures and faults, replenishing the aquifer, and to irrigate the lower levels of the slopes.
    𝗪𝗵𝗮𝘁 𝗱𝗲𝗳𝗶𝗻𝗲 𝗮𝗰𝗲𝗾𝘂𝗶𝗮𝘀?
    ✅ Gravity-fed irrigation that supported terraced farms and local biodiversity.
    ✅ Designed to distribute water slowly and equitably, even during dry summers.
    ✅ Stretching over thousands of kilometres, these systems fell into disuse in the 1980s but are now part of restoration efforts led by the MEMOLA Project (Universidad de Granada).
    With climate change and more intense droughts, the Acequias could provide an ancient solution to the modern-day water crisis…”
    #Spain #𝗮𝗰𝗲𝗾𝘂𝗶𝗮𝘀 #waterresources #historic #irrigation #mapping #watermanagement #agriculture #farming #watersecurity #HistoricalIrrigationSystems #agroecological #SierraNevada #Andalusia #Moors #engineering #constructed #channels #canals #aqueducts #cisterns #water #hydrography #snowmelt #naturalresource #sustainability #groundwater #aquifers #recharge #MEMOLA #mapping #climatechange #extremeweather #drought

    #spain #acequias #waterresources #historic #irrigation #mapping
  20. 💧🌏 Greg Cocks @GregCocks ·

    Ancient Water Wisdom - The Acequias Of Sierra Nevada, Europe’s Oldest Groundwater System ⛰️
    --
    memolaproject.eu/sierra-nevada <-- shared link to the 𝗠𝗘𝗠𝗢𝗟𝗔 𝗣𝗿𝗼𝗷𝗲𝗰𝘁 page
    --
    regadiohistorico.es/ <-- shared technical page, “Collaborative map of historical irrigation systems in Granada and Almería” / “Mapa colaborativo de regadíos históricos de Granada y Almería”
    --
    youtu.be/-TIUI2KflMk?si=iaSOwV <-- shared video overview, “Participa al Mapa colaborativo de regadíos históricos de Granada y Almería”
    --
    H/T @sofie de Volder | Co-founder TRAQUA
    “[The author has] already discussed ancient water management systems, such as the qanats in Persia and other Eastern countries. In Europe, there are the acequias of the Sierra Nevada in Andalusia, Spain.
    The hand-dug channels date back over 1,000 years to the Moorish era. Networks of canals, aqueducts and cisterns were engineered to capture and transport snowmelt, turning this natural resource into a sustainable water supply for agriculture. The high-altitude ditches had openings, allowing water to infiltrate into fractures and faults, replenishing the aquifer, and to irrigate the lower levels of the slopes.
    𝗪𝗵𝗮𝘁 𝗱𝗲𝗳𝗶𝗻𝗲 𝗮𝗰𝗲𝗾𝘂𝗶𝗮𝘀?
    ✅ Gravity-fed irrigation that supported terraced farms and local biodiversity.
    ✅ Designed to distribute water slowly and equitably, even during dry summers.
    ✅ Stretching over thousands of kilometres, these systems fell into disuse in the 1980s but are now part of restoration efforts led by the MEMOLA Project (Universidad de Granada).
    With climate change and more intense droughts, the Acequias could provide an ancient solution to the modern-day water crisis…”

    #spain #acequias #waterresources #historic #irrigation #mapping
  21. ABC Feeds @[email protected] ·

    Bid to fix stubborn Murray River sand slug 'hamstrung' by competing demands
    By Alice Walker

    The Murray Darling Basin Authority is finalising its study on what to do about an increasing river impediment amid a First Nations call to find common ground.

    abc.net.au/news/2026-07-19/bar

    #Rivers #EnvironmentalManagement #WaterResources #Agriculture #MurrayDarlingBasin #AliceWalker

    #rivers #environmentalmanagement #waterresources #agriculture #murraydarlingbasin #alicewalker
  22. ABC Feeds @[email protected] ·

    Bid to fix stubborn Murray River sand slug 'hamstrung' by competing demands
    By Alice Walker

    The Murray Darling Basin Authority is finalising its study on what to do about an increasing river impediment amid a First Nations call to find common ground.

    abc.net.au/news/2026-07-19/bar

    #Rivers #EnvironmentalManagement #WaterResources #Agriculture #MurrayDarlingBasin #AliceWalker

    #rivers #environmentalmanagement #waterresources #agriculture #murraydarlingbasin #alicewalker
  23. Jane C @[email protected] ·

    Microsoft wants to build 3 massive AI data centres in Leeds. It’ll drain thousands of litres from the River Aire and release excess carbon, heat and noise. There's still time to stop the final council sign-off.
    Please sign: you.38degrees.org.uk/petitions
    #Leeds #pollution #energy #waterResources

    #leeds #pollution #energy #waterresources
  24. Jane C @[email protected] ·

    Microsoft wants to build 3 massive AI data centres in Leeds. It’ll drain thousands of litres from the River Aire and release excess carbon, heat and noise. There's still time to stop the final council sign-off.
    Please sign: you.38degrees.org.uk/petitions
    #Leeds #pollution #energy #waterResources

    #leeds #pollution #energy #waterresources
  25. ABC Feeds @[email protected] ·

    The unanswered question in the rush for Queensland's hidden oil jackpot
    By Brandon Long

    An expert is warning that the push to fast-track approvals for the proposed Taroom Trough lacks crucial detail.

    abc.net.au/news/2026-07-17/wat

    #OilandGas #WaterResources #GovernmentandPolitics #MiningEnvironmentalIssues #BrandonLong

    #oilandgas #waterresources #governmentandpolitics #miningenvironmentalissues #brandonlong
  26. ABC Feeds @[email protected] ·

    The unanswered question in the rush for Queensland's hidden oil jackpot
    By Brandon Long

    An expert is warning that the push to fast-track approvals for the proposed Taroom Trough lacks crucial detail.

    abc.net.au/news/2026-07-17/wat

    #OilandGas #WaterResources #GovernmentandPolitics #MiningEnvironmentalIssues #BrandonLong

    #oilandgas #waterresources #governmentandpolitics #miningenvironmentalissues #brandonlong
  27. Dr Micha Campbell @[email protected] ·

    WaterCorp has revamped their website and educational materials.

    This is quite cool, you can input your address, and it shows you the breakdown of where your water comes from. So in Freo (and presumably most of Perth), we use 38% desal, 34% groundwater, 22% surface water from dams, and 6% from groundwater replenishment.

    You can also see how this has changed over time - back in the'60s, 88% of Perth water was from dams!

    watercorporation.com.au/our-wa

    #Water #WaterResources #WaterSecurity #Perth

    #water #waterresources #watersecurity #perth
  28. Dr Micha Campbell @[email protected] ·

    WaterCorp has revamped their website and educational materials.

    This is quite cool, you can input your address, and it shows you the breakdown of where your water comes from. So in Freo (and presumably most of Perth), we use 38% desal, 34% groundwater, 22% surface water from dams, and 6% from groundwater replenishment.

    You can also see how this has changed over time - back in the'60s, 88% of Perth water was from dams!

    watercorporation.com.au/our-wa

    #Water #WaterResources #WaterSecurity #Perth

    #water #waterresources #watersecurity #perth
  29. RaymondPierreL3 @[email protected] ·

    @Ex_spurt
    Look for a monumental failure of judgement… from a lackluster #AlboPM.

    I will expect a full throated retort from the #Left and those who know better than the #Clueless and #BoughtOff #PrimeMinister.

    #Enshitification #ClimateCrisis #WaterResources #EnergyPolicy #AusPol

    I’m fevently hoping to be wrong about this (the official launch of the policy will tell), but I’ve got this feeling I can’t shake off…

    #albopm #left #clueless #boughtoff #primeminister #enshitification
  30. RaymondPierreL3 @[email protected] ·

    @Ex_spurt
    Look for a monumental failure of judgement… from a lackluster #AlboPM.

    I will expect a full throated retort from the #Left and those who know better than the #Clueless and #BoughtOff #PrimeMinister.

    #Enshitification #ClimateCrisis #WaterResources #EnergyPolicy #AusPol

    I’m fevently hoping to be wrong about this (the official launch of the policy will tell), but I’ve got this feeling I can’t shake off…

    #albopm #left #clueless #boughtoff #primeminister #enshitification
  31. 💧🌏 Greg Cocks @[email protected] ·

    GMIA-NEXT - Next-Generation Global Map of Irrigated Areas |
    --
    doi.org/10.21203/rs.3.rs-10085 <-- shared paper
    --
    zenodo.org/records/17627111 <-- shared open data
    --
    H/T @kyle Davis
    “Irrigation plays a critical role in global food production and climate adaptation and exercises profound influence over humanity's water use. Yet despite its critical importance, there is a persistent lack of understanding of fine-scale irrigation patterns across the planet, knowledge which is essential for informing global food security and sustainability targets. Utilizing either statistical downscaling or remote sensing approaches, existing global irrigation datasets are constrained by coarse spatial resolutions, a lack of timeliness, or varying robustness and reliability. To address this gap, here [they] integrate[d] multi-source Earth observation and environmental datasets and use[d] machine learning to develop a medium-resolution (30 metre) global irrigated area dataset for the 2023/24 growing season. Within existing cropland extent, we leverage a newly compiled set of georeferenced irrigated (N=230,683) and non-irrigated (N=153,194) ground-truth points and integrate seasonal vegetation metrics derived from Landsat 8/9 imagery with agroecological-zone information and hydroclimatic and topographic variables. [They] subsequently develop and evaluate two machine-learning frameworks, a continental Agro-Ecological Zone (AEZ) tile-based framework and a continental-scale framework, and apply the best-performing approach for each continent. Evaluation using held-out test samples yielded a global accuracy of 80.5 ± 2.1%. The resulting maps were also validated against independent global and national irrigation datasets and statistics, demonstrating broad agreement in the spatial distribution of irrigated areas. This approach is robust and reliable because it is built on a harmonized global ground-truth database, incorporates multiple predictors, and is rigorously validated using independent datasets. All code, ground-truth, and data products are freely and publicly available [link above] and can serve as a robust, scale-neutral, and fully reproducible framework for fine-resolution irrigation mapping. These advances provide the critical and long-needed foundation for near-real-time monitoring and early warning systems, and fine-scale land and water resource management…”
    #IrrigatedAreas #Mapping #GIS #spatial #mapping #spatialanalysis #spatiotemporal #global #irrigation #water #hydrology #hydrography #waterresources #farming #agriculture #opendata #remotesensing #earthobservation #geomorphometry #AI #machinelearning #LLM #model #modeling #WaterManagement #opendata #AgroEcologicalZone #AEZ #cropland #irrigatedareas #foodproduction #wateruse #humanimpacts #EarthObservation #remotesensing #earlywarning #monitoring #FoodandAgricultureOrganizationFAO #FAO
    @FAO - Food and Agriculture Organization

    #irrigatedareas #mapping #gis #spatial #spatialanalysis #spatiotemporal
  32. 💧🌏 Greg Cocks @GregCocks ·

    GMIA-NEXT - Next-Generation Global Map of Irrigated Areas |
    --
    doi.org/10.21203/rs.3.rs-10085 <-- shared paper
    --
    zenodo.org/records/17627111 <-- shared open data
    --
    H/T @kyle Davis
    “Irrigation plays a critical role in global food production and climate adaptation and exercises profound influence over humanity's water use. Yet despite its critical importance, there is a persistent lack of understanding of fine-scale irrigation patterns across the planet, knowledge which is essential for informing global food security and sustainability targets. Utilizing either statistical downscaling or remote sensing approaches, existing global irrigation datasets are constrained by coarse spatial resolutions, a lack of timeliness, or varying robustness and reliability. To address this gap, here [they] integrate[d] multi-source Earth observation and environmental datasets and use[d] machine learning to develop a medium-resolution (30 metre) global irrigated area dataset for the 2023/24 growing season. Within existing cropland extent, we leverage a newly compiled set of georeferenced irrigated (N=230,683) and non-irrigated (N=153,194) ground-truth points and integrate seasonal vegetation metrics derived from Landsat 8/9 imagery with agroecological-zone information and hydroclimatic and topographic variables. [They] subsequently develop and evaluate two machine-learning frameworks, a continental Agro-Ecological Zone (AEZ) tile-based framework and a continental-scale framework, and apply the best-performing approach for each continent. Evaluation using held-out test samples yielded a global accuracy of 80.5 ± 2.1%. The resulting maps were also validated against independent global and national irrigation datasets and statistics, demonstrating broad agreement in the spatial distribution of irrigated areas. This approach is robust and reliable because it is built on a harmonized global ground-truth database, incorporates multiple predictors, and is rigorously validated using independent datasets. All code, ground-truth, and data products are freely and publicly available [link above] and can serve as a robust, scale-neutral, and fully reproducible framework for fine-resolution irrigation mapping. These advances provide the critical and long-needed foundation for near-real-time monitoring and early warning systems, and fine-scale land and water resource management…”

    @FAO - Food and Agriculture Organization

    #irrigatedareas #mapping #gis #spatial #spatialanalysis #spatiotemporal
  33. 💧🌏 Greg Cocks @[email protected] ·

    Eager Beavers - Rodents Engineer Czech Wetland Project After Years Of Human Delay [ecosystem engineers]
    --
    theguardian.com/world/2025/feb <-- shared technical media article
    --
    en.wikipedia.org/wiki/Beaver-e <-- shared wiki technical page
    --
    phys.org/news/2025-02-fine-bea <-- shared technical article
    --
    youtu.be/GSTw8qmBP4Y?si=XK2Iy2 <-- shared video (Czech)
    --
    H/T @ScienceGirl
    "We don't expect any conflict with the beaver in the next 10 years," ~ Bohumil Fiser from the Czech Nature Conservation Agency
    --
    “For seven years, planners struggled to complete a $1.2 million wetland restoration project in the Brdy region of the Czech Republic. The goal was to build a dam that would improve water management and bring back valuable wetland habitat, but the project remained trapped in a maze of permits and approvals.
    Then a family of eight Eurasian beavers did what engineers had planned… without permits, machinery, or a budget.
    The beavers built a network of dams in almost the exact area chosen for the proposed project, naturally restoring the wetland system officials had spent years trying to create. After seeing the results, authorities decided there was little point continuing with the original human-built dam.
    Although some reports suggested the beavers completed the work overnight, experts say their construction likely took several weeks. The reason it seemed sudden is that the animals quietly worked away until their finished dams became impossible to miss.
    Beavers are known as “ecosystem engineers” because their behaviour can reshape entire environments. By cutting trees and blocking streams, they create ponds and wetlands that support countless species, including fish, amphibians, insects, birds, and mammals.
    Their wetlands also act as natural water reservoirs, helping during droughts, reducing flood risks, filtering water, storing carbon, and keeping landscapes wetter during wildfires…
    Once heavily hunted across Europe, beaver populations have been recovering thanks to conservation efforts, proving that sometimes nature can solve problems humans spend years trying to fix…"
    #water #hydrology #KlabavaRiver #Czech #BrdyRegion #protected #CzechRepublic #armytraining #military #beaver #Eurasianbeavers #dam #beaverdam #waterquality #restoration #biodiversity #crayfish #wetland #ecology #benefits #Beavers #NatureBasedSolutions #Wetlands #Ecology #Biodiversity #Agroforestry #EnvironmentalScience #Conservation #Wildlife #Ecosystem #bioviversity #conservation #restoration #landscaperecovery #EcosystemEngineers #nature #floodmanagement #FloodMitigation #flood #flooding #energy #floodrisk #sustainability #wetlands #hydrography #dams #impoundment #deadwood #waterresources #landscapeengineer #agriculture #benefits #vegetation #ecology #ecosystem #riversystemsstabilisation #naturalwaterregulation #resilience #drought #wildfire #valleysreborn #slowdetermination #fisheries #invertebrates #extremeweather #floodflows #sediment #baseflow #drought #landmanagement #naturalsystems #landuse #ecosystemengineers #watermanagement

    #water #hydrology #klabavariver #czech #brdyregion #protected
  34. 💧🌏 Greg Cocks @GregCocks ·

    Eager Beavers - Rodents Engineer Czech Wetland Project After Years Of Human Delay [ecosystem engineers]
    --
    theguardian.com/world/2025/feb <-- shared technical media article
    --
    en.wikipedia.org/wiki/Beaver-e <-- shared wiki technical page
    --
    phys.org/news/2025-02-fine-bea <-- shared technical article
    --
    youtu.be/GSTw8qmBP4Y?si=XK2Iy2 <-- shared video (Czech)
    --
    H/T @ScienceGirl
    "We don't expect any conflict with the beaver in the next 10 years," ~ Bohumil Fiser from the Czech Nature Conservation Agency
    --
    “For seven years, planners struggled to complete a $1.2 million wetland restoration project in the Brdy region of the Czech Republic. The goal was to build a dam that would improve water management and bring back valuable wetland habitat, but the project remained trapped in a maze of permits and approvals.
    Then a family of eight Eurasian beavers did what engineers had planned… without permits, machinery, or a budget.
    The beavers built a network of dams in almost the exact area chosen for the proposed project, naturally restoring the wetland system officials had spent years trying to create. After seeing the results, authorities decided there was little point continuing with the original human-built dam.
    Although some reports suggested the beavers completed the work overnight, experts say their construction likely took several weeks. The reason it seemed sudden is that the animals quietly worked away until their finished dams became impossible to miss.
    Beavers are known as “ecosystem engineers” because their behaviour can reshape entire environments. By cutting trees and blocking streams, they create ponds and wetlands that support countless species, including fish, amphibians, insects, birds, and mammals.
    Their wetlands also act as natural water reservoirs, helping during droughts, reducing flood risks, filtering water, storing carbon, and keeping landscapes wetter during wildfires…
    Once heavily hunted across Europe, beaver populations have been recovering thanks to conservation efforts, proving that sometimes nature can solve problems humans spend years trying to fix…"

    #water #hydrology #klabavariver #czech #brdyregion #protected
  35. 💧🌏 Greg Cocks @[email protected] ·

    Watching A #NOAA #Webinar on Flash Droughts
    --
    noaaresearch.webex.com/wbxmjs/ <-- shared NOAA Summer Science Series individual webinar
    --
    drought.gov/what-is-drought/fl <-- shared NOAA overview technical article
    --
    star.nesdis.noaa.gov/star/NOAA <-- subscribe to the NOAA Summer Science Series
    --
    doi.org/10.1038/s41612-024-006 <-- shared paper
    --
    communities.springernature.com <-- shared technical article (derived from paper above)
    H/T @Jeffrey Basara PhD, MBA | Chair and Professor - Department of Environmental, Earth, and Atmospheric Sciences, University of Massachusetts Lowell | Co-Founder - American Prime Sustainable Solutions
    [Flash floods? not TOO hard to conceptualise.
    Flash drought? harder to 'get my head around', but H/T / presenter does an excellent job!]
    "Not all droughts are the same. In some cases, drought rapidly intensifies at subseasonal to seasonal scales with significant impacts to agriculture and water resources along with the increased propensity for heatwaves and wildfires. Like all droughts, flash drought begins with a precipitation deficit. However, both evaporative demand and soil moisture are critical flash drought variables, and identifying and monitoring the desiccation of the terrestrial surface is key for determining flash drought development and associated impacts. While recent advances in knowledge and monitoring of flash drought have occurred, fundamental questions remain in the state of the science. What are the overall mechanistic relationships between atmospheric demand, evaporative stress, terrestrial desiccation, and precipitation that drive the progression of flash drought? Do regional characteristics of the environment impact the evolution of flash drought? What are the scales of predictability for flash drought? Finally, how will flash drought frequency and intensity evolve in a changing climate system"
    --
    "Flash drought intensifies rapidly due to changes in precipitation, temperature, wind, and radiation. These changes in the weather increase evapotranspiration and lower soil moisture. Flash droughts can cause extensive damage to agriculture, economies, and ecosystems if they are not predicted and discovered early..."
    #water #hydrology #fedscience #publicgood #hydrologicdrought #waterdeficit #spatialanalysis #spatiotemporal #watersecurity #risk #hazard #humanimpacts #streamflow #riverflow #groundwater #surfacewater #climate #weather #climatechange #extremeweather #atmosphere #metrology #regional #global #farming #agriculture #fluvial #pluvial #rainfall #precipitation #cloudcover #energy #heat #temperature #ET #evapotranspiration #farming #agriculture #foodsecurity #waterresources #dynamicsystems #watermanagement #flashdrought #drought #susceptibility #monitoring #prediction #model #modeling
    @noaa

    #noaa #webinar #water #hydrology #fedscience #publicgood
  36. 💧🌏 Greg Cocks @GregCocks ·

    Watching A on Flash Droughts
    --
    noaaresearch.webex.com/wbxmjs/ <-- shared NOAA Summer Science Series individual webinar
    --
    drought.gov/what-is-drought/fl <-- shared NOAA overview technical article
    --
    star.nesdis.noaa.gov/star/NOAA <-- subscribe to the NOAA Summer Science Series
    --
    doi.org/10.1038/s41612-024-006 <-- shared paper
    --
    communities.springernature.com <-- shared technical article (derived from paper above)
    H/T @Jeffrey Basara PhD, MBA | Chair and Professor - Department of Environmental, Earth, and Atmospheric Sciences, University of Massachusetts Lowell | Co-Founder - American Prime Sustainable Solutions
    [Flash floods? not TOO hard to conceptualise.
    Flash drought? harder to 'get my head around', but H/T / presenter does an excellent job!]
    "Not all droughts are the same. In some cases, drought rapidly intensifies at subseasonal to seasonal scales with significant impacts to agriculture and water resources along with the increased propensity for heatwaves and wildfires. Like all droughts, flash drought begins with a precipitation deficit. However, both evaporative demand and soil moisture are critical flash drought variables, and identifying and monitoring the desiccation of the terrestrial surface is key for determining flash drought development and associated impacts. While recent advances in knowledge and monitoring of flash drought have occurred, fundamental questions remain in the state of the science. What are the overall mechanistic relationships between atmospheric demand, evaporative stress, terrestrial desiccation, and precipitation that drive the progression of flash drought? Do regional characteristics of the environment impact the evolution of flash drought? What are the scales of predictability for flash drought? Finally, how will flash drought frequency and intensity evolve in a changing climate system"
    --
    "Flash drought intensifies rapidly due to changes in precipitation, temperature, wind, and radiation. These changes in the weather increase evapotranspiration and lower soil moisture. Flash droughts can cause extensive damage to agriculture, economies, and ecosystems if they are not predicted and discovered early..."

    @noaa

    #noaa #webinar #water #hydrology #fedscience #publicgood
  37. 💧🌏 Greg Cocks @[email protected] ·

    National Water Availability Assessment Data Companion Launches Interactive Map
    --
    water.usgs.gov/nwaa-data/ <-- shared USGS resource link
    --
    water.usgs.gov/nwaa-data/inter <-- shared USGS webmap
    --
    H/T @USGS NWDC
    “The National Water Availability Assessment Data Companion (NWDC) delivers national-scale modeled water data underlying the National Water Availability Assessment Report. The NWDC will be continuously updated to include new data used in future National Water Availability Assessment Reports, with planned reports in 2026 and 2030.
    The NWDC also serves information on underlying model methodologies, strengths, and limitations to enable proper use of the data…
    USGS scientific teams develop NWDC models to analyze and represent the complexities of water systems. These models fill gaps where USGS observations are unavailable, covering the conterminous United States (lower 48 states) and soon extending to Alaska, Hawaii, and Puerto Rico.
    All NWDC datasets currently cover past conditions over multiple decades, and are standardized to 12-digit [WBD] hydrologic unit code (HUC12) watersheds and monthly timesteps…”
    #opendata #monitoring #spatialanalysis #spatiotemporal #fedscience #publicgood #water #hydrology #waterresources #watermanagement #change #model #modeling #USA #NationalWaterAvailabilityAssessment #NWDC #CONUS #USGS #USGS_water
    @USGS

    #opendata #monitoring #spatialanalysis #spatiotemporal #fedscience #publicgood
  38. 💧🌏 Greg Cocks @GregCocks ·

    National Water Availability Assessment Data Companion Launches Interactive Map
    --
    water.usgs.gov/nwaa-data/ <-- shared USGS resource link
    --
    water.usgs.gov/nwaa-data/inter <-- shared USGS webmap
    --
    H/T @USGS NWDC
    “The National Water Availability Assessment Data Companion (NWDC) delivers national-scale modeled water data underlying the National Water Availability Assessment Report. The NWDC will be continuously updated to include new data used in future National Water Availability Assessment Reports, with planned reports in 2026 and 2030.
    The NWDC also serves information on underlying model methodologies, strengths, and limitations to enable proper use of the data…
    USGS scientific teams develop NWDC models to analyze and represent the complexities of water systems. These models fill gaps where USGS observations are unavailable, covering the conterminous United States (lower 48 states) and soon extending to Alaska, Hawaii, and Puerto Rico.
    All NWDC datasets currently cover past conditions over multiple decades, and are standardized to 12-digit [WBD] hydrologic unit code (HUC12) watersheds and monthly timesteps…”

    @USGS

    #opendata #monitoring #spatialanalysis #spatiotemporal #fedscience #publicgood
  39. 💧🌏 Greg Cocks @[email protected] ·

    Comparing Multi-Model Mosaic And Multi-Model Combination Methods To Simulate Streamflow Across The Contiguous USA
    --
    doi.org/10.5194/hess-30-3945-2 <-- shared paper
    --
    H/T @cyril THEBAULT | Postdoctoral Fellow chez Earth Sciences New Zealand
    “[They] compared different multi-model approaches for streamflow simulation using 78 hydrological models across 559 catchments in the United States. [Their] results show that while multi-model combinations can slightly improve accuracy and reduce uncertainty, no single approach performs best everywhere.
    One interesting takeaway is that a carefully selected single model can perform as well as more complex multi-model approaches when it is chosen based on a comparative evaluation rather than simply inherited from legacy operational systems... 👀”
    --
    “The ability to accurately predict streamflow underpins decisions in water management, flood prevention, and sectoral planning. Traditional approaches for streamflow prediction often rely on a single model, thereby overlooking potential benefits from using multiple models. To address this limitation, this study explores alternative methods that select and combine multiple models to enhance streamflow simulations. Specifically, [they] assess[ed] the performance of multi-model mosaic methods that assign a single model to each catchment, and multi-model combination methods that merge multiple models using static or dynamic weighting schemes. The Framework for Understanding Structural Errors (FUSE) is used to create an ensemble of 78 hydrological models, which were applied to 544 catchments from the CAMELS dataset across the contiguous United States. Each of the 78 models is calibrated utilizing a composite objective function, calculated as the average of a high-flow and a low-flow performance metric, to cover a wide range of streamflow conditions. Based on [their] selection of lumped FUSE models, the results show that a carefully chosen single model from a larger ensemble can closely approach the performance of more complex multi-model strategies. Among the multi-model approaches, the combination and mosaic methods show broadly similar overall skill, although the combination approaches deliver slightly higher performance and lower sampling uncertainty. However, per-catchment differences persist, indicating that no single multi-model strategy dominates everywhere. This heterogeneity in performance makes it difficult to determine a priori which multi-model method will best represent streamflow in a given catchment…”
    #water #hydrology #streamflow #USA #CONUS #multimodel #simulation #hydrologic #model #modeling #catchments #watermanagement #waterresources #planning #watersecurity #flood #flooding #prediction #FUSE #CAMELS #spatialanalysis #spatiotemporal

    #water #hydrology #streamflow #usa #conus #multimodel
  40. 💧🌏 Greg Cocks @GregCocks ·

    Comparing Multi-Model Mosaic And Multi-Model Combination Methods To Simulate Streamflow Across The Contiguous USA
    --
    doi.org/10.5194/hess-30-3945-2 <-- shared paper
    --
    H/T @cyril THEBAULT | Postdoctoral Fellow chez Earth Sciences New Zealand
    “[They] compared different multi-model approaches for streamflow simulation using 78 hydrological models across 559 catchments in the United States. [Their] results show that while multi-model combinations can slightly improve accuracy and reduce uncertainty, no single approach performs best everywhere.
    One interesting takeaway is that a carefully selected single model can perform as well as more complex multi-model approaches when it is chosen based on a comparative evaluation rather than simply inherited from legacy operational systems... 👀”
    --
    “The ability to accurately predict streamflow underpins decisions in water management, flood prevention, and sectoral planning. Traditional approaches for streamflow prediction often rely on a single model, thereby overlooking potential benefits from using multiple models. To address this limitation, this study explores alternative methods that select and combine multiple models to enhance streamflow simulations. Specifically, [they] assess[ed] the performance of multi-model mosaic methods that assign a single model to each catchment, and multi-model combination methods that merge multiple models using static or dynamic weighting schemes. The Framework for Understanding Structural Errors (FUSE) is used to create an ensemble of 78 hydrological models, which were applied to 544 catchments from the CAMELS dataset across the contiguous United States. Each of the 78 models is calibrated utilizing a composite objective function, calculated as the average of a high-flow and a low-flow performance metric, to cover a wide range of streamflow conditions. Based on [their] selection of lumped FUSE models, the results show that a carefully chosen single model from a larger ensemble can closely approach the performance of more complex multi-model strategies. Among the multi-model approaches, the combination and mosaic methods show broadly similar overall skill, although the combination approaches deliver slightly higher performance and lower sampling uncertainty. However, per-catchment differences persist, indicating that no single multi-model strategy dominates everywhere. This heterogeneity in performance makes it difficult to determine a priori which multi-model method will best represent streamflow in a given catchment…”

    #water #hydrology #streamflow #usa #conus #multimodel
  41. ABC Feeds @[email protected] ·

    Cattle farmer plants 14,000 trees to help slow flow of flood water

    Jeff Imeson has planted around 14,000 trees on his property near Nimbin in a bid to help slow the flow of future floods.

    abc.net.au/news/2026-07-10/nat

    #Nature #EnvironmentalPolicy #EnvironmentalManagement #WaterResources #Floods #AgriculturalCrops

    #nature #environmentalpolicy #environmentalmanagement #waterresources #floods #agriculturalcrops
  42. ABC Feeds @[email protected] ·

    Cattle farmer plants 14,000 trees to help slow flow of flood water

    Jeff Imeson has planted around 14,000 trees on his property near Nimbin in a bid to help slow the flow of future floods.

    abc.net.au/news/2026-07-10/nat

    #Nature #EnvironmentalPolicy #EnvironmentalManagement #WaterResources #Floods #AgriculturalCrops

    #nature #environmentalpolicy #environmentalmanagement #waterresources #floods #agriculturalcrops
  43. 💧🌏 Greg Cocks @[email protected] ·

    Recent Upper Colorado River Streamflow Declines Driven by Loss of Spring Precipitation
    --
    dx.doi.org/10.1029/2024GL109826 <-- shared 2024 paper
    --
    sciencedaily.com/releases/2024 <-- shared technical article
    --
    [it would be interesting to see the paper’s author’s updated views/analysis after the 2025/2026 (lack of) winter / record-low snowpack in the Rockies, feeding the Colorado R., etc]
    #water #hydrology #waterresources #precipitation #snow #snowpack
    #Colorado #ColoradoRiver #planning #allocation #aquifer #surfacewater #groundwater #vegetation #plant #phenology #watercycle #spring #rainfall #snowmelt #sublimation #hydrogeomorphology #runoff #infiltration #checkdams #engineering #keystone #species #beaver #wolf #herbivore #overgrazing #burrows #watertable #research #streamflow #evapotranspiration #restoration
    @University of Washington

    #water #hydrology #waterresources #precipitation #snow #snowpack
  44. 💧🌏 Greg Cocks @GregCocks ·

    Recent Upper Colorado River Streamflow Declines Driven by Loss of Spring Precipitation
    --
    dx.doi.org/10.1029/2024GL109826 <-- shared 2024 paper
    --
    sciencedaily.com/releases/2024 <-- shared technical article
    --
    [it would be interesting to see the paper’s author’s updated views/analysis after the 2025/2026 (lack of) winter / record-low snowpack in the Rockies, feeding the Colorado R., etc]


    @University of Washington

    #water #hydrology #waterresources #precipitation #snow #snowpack
  45. 💧🌏 Greg Cocks @[email protected] ·

    Statistical Characterization Of High Flow Volumes Across The Conterminous United States Supporting Managed Aquifer Recharge
    --
    doi.org/10.1029/2025WR041955 <-- shared paper
    --
    latimes.com/environment/story/ <-- shared media article
    --
    #water #hydrology #groundwater #watersecurity #waterresources #watersupply #watermanagement #USA #CONUS #aquifer #ManagedAquiferRecharge #MAR #FloodMAR #depletion #overpumping #flood #flooding #recharge #planning #policy #streamflow #extremes #hydrography #highflowvolumes #HFV #model #modeling #uncertainly #siting #screening #usecase #spatialanalysis #geostatics #spatiotemporal #mapping #hydrogeomorphology

    #water #hydrology #groundwater #watersecurity #waterresources #watersupply
  46. 💧🌏 Greg Cocks @GregCocks ·

    Statistical Characterization Of High Flow Volumes Across The Conterminous United States Supporting Managed Aquifer Recharge
    --
    doi.org/10.1029/2025WR041955 <-- shared paper
    --
    latimes.com/environment/story/ <-- shared media article
    --

    #water #hydrology #groundwater #watersecurity #waterresources #watersupply
  47. ABC Feeds @[email protected] ·

    Water in the air an 'untapped water resource' until now
    By Joanna Prendergast

    Can water be made from air in WA's Wheatbelt? Researchers are putting an invention to the test.

    abc.net.au/news/2026-07-09/wat

    #WaterResources #WaterSupply #LivestockFarming #LocalFoodSystems #Agribusiness #ScientificResearch #IrrigatedFarming #JoannaPrendergast

    #waterresources #watersupply #livestockfarming #localfoodsystems #agribusiness #scientificresearch
  48. ABC Feeds @[email protected] ·

    Water in the air an 'untapped water resource' until now
    By Joanna Prendergast

    Can water be made from air in WA's Wheatbelt? Researchers are putting an invention to the test.

    abc.net.au/news/2026-07-09/wat

    #WaterResources #WaterSupply #LivestockFarming #LocalFoodSystems #Agribusiness #ScientificResearch #IrrigatedFarming #JoannaPrendergast

    #waterresources #watersupply #livestockfarming #localfoodsystems #agribusiness #scientificresearch
  49. ABC Feeds @[email protected] ·

    Fears towns will be 'decimated' as rice miller cuts production
    By Emily Doak

    Communities in southern NSW fear large cutbacks to rice processing could put hundreds of people out of work and decimate regional economies.

    abc.net.au/news/2026-07-09/sun

    #FoodandBeverageProcessingIndustry #AgriculturalCrops #WaterResources #RuralandRemoteCommunities #EmilyDoak

    #foodandbeverageprocessingindustry #agriculturalcrops #waterresources #ruralandremotecommunities #emilydoak
  50. ABC Feeds @[email protected] ·

    Fears towns will be 'decimated' as rice miller cuts production
    By Emily Doak

    Communities in southern NSW fear large cutbacks to rice processing could put hundreds of people out of work and decimate regional economies.

    abc.net.au/news/2026-07-09/sun

    #FoodandBeverageProcessingIndustry #AgriculturalCrops #WaterResources #RuralandRemoteCommunities #EmilyDoak

    #foodandbeverageprocessingindustry #agriculturalcrops #waterresources #ruralandremotecommunities #emilydoak
  51. Australia News Beep @[email protected] ·

    Urban water affordability crisis exacerbated by climate change

    Mack, E. A. & Wrase, S. A burgeoning crisis? A nationwide assessment of the geography of water affordability…
    #NewsBeep #News #Environment #AU #Australia #CivilEngineering #Climate-changeimpacts #Decisionmaking #Science #sustainabledevelopment #Waterresources
    newsbeep.com/au/787476/

    #newsbeep #news #environment #au #australia #civilengineering
  52. 💧🌏 Greg Cocks @[email protected] ·

    Comparative Hydro-Climatic Datasets For Catchment-Wise Linked Water Fluxes And Storage Changes Across South America
    --
    doi.org/10.3389/fenvs.2026.176 <-- shared paper
    --
    doi.org/10.1038/s43247-026-036 <-- shared paper
    --
    doi.org/10.1002/joc.6443 <-- shared paper
    --
    pik-potsdam.de/en/news/latest- | publications.iom.int/books/eva <-- shared 2021 Peru hydroclimate technical article | report
    --
    youtu.be/Ngbm0gsmYAw?si=haqV7t <-- shared overview video
    --
    #water #GIS #spatial #mappping #spatialanalysis #spatiotemporal #remotesensing #earthobservation #Hydrology #Hydroclimatology #ClimateChange #extremeweather #WaterResources #WaterSecurity uncertainity #SouthAmerica #ClimateData #PeerReview #OpenScience #Hydrometeorology #opendata #datasets #rainfall #precipitation #fluvial #heatwave #temperature #changing #consistency #flood #flooding #drought #riskmanagement #risk #hazard #earthsystems #resilience #waterquality #waterpollution #model #modeling #monitoring #records #hydroclimate #hydrogeomorphology #review #SouthAmerica #planning #policy #sustainability #evapotranspiration #runoff #waterstorage #SAHCD

    #water #gis #spatial #mappping #spatialanalysis #spatiotemporal
  53. 💧🌏 Greg Cocks @GregCocks ·

    Comparative Hydro-Climatic Datasets For Catchment-Wise Linked Water Fluxes And Storage Changes Across South America
    --
    doi.org/10.3389/fenvs.2026.176 <-- shared paper
    --
    doi.org/10.1038/s43247-026-036 <-- shared paper
    --
    doi.org/10.1002/joc.6443 <-- shared paper
    --
    pik-potsdam.de/en/news/latest- | publications.iom.int/books/eva <-- shared 2021 Peru hydroclimate technical article | report
    --
    youtu.be/Ngbm0gsmYAw?si=haqV7t <-- shared overview video
    --
    uncertainity

    #water #gis #spatial #mappping #spatialanalysis #spatiotemporal
  54. ABC Feeds @[email protected] ·

    Government commits to fix dam that 'cannot be repaired'
    By Nikki Sorbello and Tayla Larsen

    The Queensland government announces a plan to rebuild the Paradise Dam wall where it is, despite its operator previously saying there were too many issues to fix it.

    abc.net.au/news/2026-07-07/gov

    #WaterResources #StateandTerritoryGovernment #NikkiSorbello #TaylaLarsen

    #waterresources #stateandterritorygovernment #nikkisorbello #taylalarsen
  55. ABC Feeds @[email protected] ·

    Government commits to fix dam that 'cannot be repaired'
    By Nikki Sorbello and Tayla Larsen

    The Queensland government announces a plan to rebuild the Paradise Dam wall where it is, despite its operator previously saying there were too many issues to fix it.

    abc.net.au/news/2026-07-07/gov

    #WaterResources #StateandTerritoryGovernment #NikkiSorbello #TaylaLarsen

    #waterresources #stateandterritorygovernment #nikkisorbello #taylalarsen
  56. ABC Feeds @[email protected] ·

    Victorian town finally gets drinking water, but not everyone is happy
    By Nethma Dandeniya and Rebekah Lowe

    Victoria's largest town without drinking water finally gets a new potable supply, but it has left the community that has relied on tank water divided.

    abc.net.au/news/2026-07-07/vic

    #WaterSupply #WaterResources #RegionalCommunities #NethmaDandeniya #RebekahLowe

    #watersupply #waterresources #regionalcommunities #nethmadandeniya #rebekahlowe
  57. ABC Feeds @[email protected] ·

    Victorian town finally gets drinking water, but not everyone is happy
    By Nethma Dandeniya and Rebekah Lowe

    Victoria's largest town without drinking water finally gets a new potable supply, but it has left the community that has relied on tank water divided.

    abc.net.au/news/2026-07-07/vic

    #WaterSupply #WaterResources #RegionalCommunities #NethmaDandeniya #RebekahLowe

    #watersupply #waterresources #regionalcommunities #nethmadandeniya #rebekahlowe
  58. 💧🌏 Greg Cocks @[email protected] ·

    Advancing Detailed Flood Hazard Identification in Alberta, Canada - Insights from Two Recent Flood Studies
    --
    doi.org/10.3390/w18131592 <-- shared paper
    --
    “The increasing frequency of floods and the severity of their consequences for public safety, infrastructure, and the economy demand improved methods for flood hazard identification. Flood studies that include flood hazard mapping are critical tools for informing emergency response and flood recovery, as well as for land use and mitigation planning. The methodology for such flood studies has evolved, and access to more powerful computational resources and high-resolution base data has contributed to the increased use of two-dimensional hydraulic modelling, where one-dimensional modelling previously was the default. However, local-scale flood studies face real-world constraints, including sparse data, challenging hydrologic conditions, and budget limitations, which can hinder the application of advanced techniques. This study addresses these challenges through innovative, practice-driven solutions in two case studies in Alberta, Canada: a small, partly channelised prairie stream network (Wolf Creek, Lacombe) and a laterally dynamic river on a distributary delta (Swan River, Kinuso). Three core components of flood hazard studies are described: field survey data collection, regional hydrology assessment, and hydraulic modelling. Key findings include demonstrating that LiDAR-derived terrain models alone cannot capture channel conveyance, the importance of low-flow calibration in the absence of high-water marks, the selection of a modelling methodology based on bathymetric and topographic features within a study area, and the development of inflow hydrographs for unsteady-state simulation in flat floodplains…”
    #FloodMapping #FloodRisk #Hydrology #HydraulicModeling #HECRAS #WaterResources #Alberta #Resilience #RiverSurvey #spatialanlaysis #spatiotemporal #floodhazardmapping #HECRAS #model #modeling #remotesensing #LiDAR #bathymetry #floodfrequencyanalysis #unsteadysimulation #FHIMP #FHIP #WoldCreek #Lacombe #SwanRiver #Kinuso #Alberta #Canada #localscale #provincialfloodstudy # prairie #stream #river #flood #flooding #water #hydrology #risk #hazard #watershed #publicsafety #cost #damage #economics #infrastructure #use #practicedriven #floodhazard #survey #hydraulic #terrainmodels #hydrogeomorphology #topography #elevation #floodplain
    @Alberta Environment and Protected Areas | @Government of Alberta | @Barr Engineering

    #floodmapping #floodrisk #hydrology #hydraulicmodeling #hecras #waterresources
  59. 💧🌏 Greg Cocks @GregCocks ·

    Advancing Detailed Flood Hazard Identification in Alberta, Canada - Insights from Two Recent Flood Studies
    --
    doi.org/10.3390/w18131592 <-- shared paper
    --
    “The increasing frequency of floods and the severity of their consequences for public safety, infrastructure, and the economy demand improved methods for flood hazard identification. Flood studies that include flood hazard mapping are critical tools for informing emergency response and flood recovery, as well as for land use and mitigation planning. The methodology for such flood studies has evolved, and access to more powerful computational resources and high-resolution base data has contributed to the increased use of two-dimensional hydraulic modelling, where one-dimensional modelling previously was the default. However, local-scale flood studies face real-world constraints, including sparse data, challenging hydrologic conditions, and budget limitations, which can hinder the application of advanced techniques. This study addresses these challenges through innovative, practice-driven solutions in two case studies in Alberta, Canada: a small, partly channelised prairie stream network (Wolf Creek, Lacombe) and a laterally dynamic river on a distributary delta (Swan River, Kinuso). Three core components of flood hazard studies are described: field survey data collection, regional hydrology assessment, and hydraulic modelling. Key findings include demonstrating that LiDAR-derived terrain models alone cannot capture channel conveyance, the importance of low-flow calibration in the absence of high-water marks, the selection of a modelling methodology based on bathymetric and topographic features within a study area, and the development of inflow hydrographs for unsteady-state simulation in flat floodplains…”
    # prairie
    @Alberta Environment and Protected Areas | @Government of Alberta | @Barr Engineering

    #floodmapping #floodrisk #hydrology #hydraulicmodeling #hecras #waterresources
  60. 💧🌏 Greg Cocks @GregCocks ·

    🦫 Could Beavers Help Tackle One Of Climate Change’s Fastest-Growing Challenges? [UK] 🦫
    --
    linkedin.com/pulse/climate-cha <-- shared technical article
    --
    bbc.com/news/articles/cx26r1gz <-- shared media article, “Beavers have helped reduce flood risk…”
    --
    wildlifetrusts.org/saving-spec <-- shared overview, beavers in the UK
    --
    npr.org/2026/05/21/nx-s1-57389 <-- shared media article, “As floods get worse, Britain tries a new solution: beavers”
    --
    rewildingbritain.org.uk/why-re <-- shared reintroduction overview
    --
    youtu.be/NXZjt1M6loY?si=pwjU0t <-- shared video, “Watch the moment wild beavers return to Cornwall” [UK]
    --
    youtu.be/65HBgO33GDo?si=2qfBAa <-- shared video, “First Beavers in Bedfordshire in over 400 years” [UK]
    --
    scottishwildlifetrust.org.uk/o <-- shared overview, beaver reintroduction into Scotland
    --
    youtu.be/vCjvCQHX7mQ?si=fJS9E1 <-- shared video, “Scotland Released 11 Beavers Into a Dead River — What They Did With Mud and Sticks Was [amazing]”
    --
    H/T @RomeCook
    “In [this] article, [the author] explore[s]:
    🌿 How beaver-created wetlands support biodiversity
    🦟 Their potential influence on mosquitoes and other insect pests
    🕷️ The indirect role they may play in tick ecology
    🦇 How dragonflies, bats, birds, amphibians and beneficial insects contribute to natural pest regulation
    🚜 What this could mean for sustainable agriculture and agroforestry
    🌍 Why this matters for biodiversity, farming, and human and animal health in a changing climate…
    The beaver isn’t simply creating wetlands. It may be rebuilding the ecological balance that our landscapes have gradually lost….”
    # agriculture

    #beavers #beaverconference2026 #naturebasedsolutions #wetlands #ecology #biodiversity