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#watercycle — Public Fediverse posts

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

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  1. 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

  2. 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…”

  3. 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

  4. Land stores and releases water, playing a vital role in the rain cycle and climate.
    This illustration-only poster shows the earth reaching up to the clouds, making land and sky one.

    Link to poster: rlmartstudio.com/product/land-

    Link to note card: rlmartstudio.com/product/land-

    #enviromentaljustice #watercycle

  5. Land stores and releases water, playing a vital role in the rain cycle and climate.
    This illustration-only poster shows the earth reaching up to the clouds, making land and sky one.

    Link to poster: rlmartstudio.com/product/land-

    Link to note card: rlmartstudio.com/product/land-

    #enviromentaljustice #watercycle

  6. Has #China Planted So Many #Trees It Has Changed its #WaterCycle? : Medium

    #AI Is Changing How We #Learn at #Work : HBR

    How recently have we understood the #Universe? : Big Think

    Latest #KnowledgeLinks

    knowledgezone.co.in/resources/

  7. Has #China Planted So Many #Trees It Has Changed its #WaterCycle? : Medium

    #AI Is Changing How We #Learn at #Work : HBR

    How recently have we understood the #Universe? : Big Think

    Latest #KnowledgeLinks

    knowledgezone.co.in/resources/

  8. Definition and Benefits of Conjunctive Water Management
    --
    unece.org/sites/default/files/ <-- shared 2023 UNESCO presentation
    --
    unesdoc.unesco.org/ark:/48223/ <-- shared UNESCO document
    --
    doi.org/10.62592/XGBG1126 <-- shared publication, The Groundwater Project
    --
    “Different forms of water are often managed in isolation. Conjunctive Water Management considers surface water, groundwater and other components of the water cycle as one single resource, maximizing benefits and streamlining their use..."
    #water #hydrology #integration #watermanagement #waterresources #ConjunctiveWaterManagement #surfacewater #groundwater #watercycle #fluvial #pluvial #precipitation #goodpractice #waterconvention #usecase #conservation
    @unesco

  9. Definition and Benefits of Conjunctive Water Management
    --
    unece.org/sites/default/files/ <-- shared 2023 UNESCO presentation
    --
    unesdoc.unesco.org/ark:/48223/ <-- shared UNESCO document
    --
    doi.org/10.62592/XGBG1126 <-- shared publication, The Groundwater Project
    --
    “Different forms of water are often managed in isolation. Conjunctive Water Management considers surface water, groundwater and other components of the water cycle as one single resource, maximizing benefits and streamlining their use..."

    @unesco

  10. From drought to deluge: WMO report highlights increasingly erratic water cycle

    The water cycle has become increasingly erratic and extreme, swinging between deluge and drought, according to a new report from the World Meteorological Organization (WMO). It highlights the cascading impacts of too much or too little water on economies and society.

    #WaterCycle #Drought #WMO #water #WorldMeteorologicalOrganization

    wmo.int/news/media-centre/from

  11. From drought to deluge: WMO report highlights increasingly erratic water cycle

    The water cycle has become increasingly erratic and extreme, swinging between deluge and drought, according to a new report from the World Meteorological Organization (WMO). It highlights the cascading impacts of too much or too little water on economies and society.

    #WaterCycle #Drought #WMO #water #WorldMeteorologicalOrganization

    wmo.int/news/media-centre/from

  12. 2/2

    ... the water cycle through excretions and thus into the oceans, affecting the animals (and plants) there.

    Medication residues affect aquatic life. Medication residues have been found in water all over the world, even in oceans where few people live.

    Small concentrations of medications can have a major impact.

    nrk.no/trondelag/medisin-gar-g

    #climatechange #climate #climateaction #Watercycle #ocean #Marineanimals

  13. #Saving the #Planet: Incremental Change is Not Good Enough : Medium

    #NASA #Scientists Find New #Human-Caused Shifts in #Global #WaterCycle : NASA

    The #Hidden #Mathematics behind why you find things #Beautiful : Big Think

    Check our latest #KnowledgeLinks

    knowledgezone.co.in/resources/

  14. #Saving the #Planet: Incremental Change is Not Good Enough : Medium

    #NASA #Scientists Find New #Human-Caused Shifts in #Global #WaterCycle : NASA

    The #Hidden #Mathematics behind why you find things #Beautiful : Big Think

    Check our latest #KnowledgeLinks

    knowledgezone.co.in/resources/

  15. #ClimateCrisis ‘wreaking havoc’ on #Earth’s #watercycle
    #GlobalHeating is supercharging storms, #floods and #droughts, affecting entire ecosystems and billions of people
    Rising temperatures, caused by burning #fossilfuels, disrupt #water cycle. Warmer air holds more water vapour, leading to more intense downpours. Warmer seas provide more energy to hurricanes and typhoons. #ClimateChange also increases drought by causing more evaporation from soil, and shifting rainfall. theguardian.com/world/2025/jan

  16. #ClimateCrisis ‘wreaking havoc’ on #Earth’s #watercycle
    #GlobalHeating is supercharging storms, #floods and #droughts, affecting entire ecosystems and billions of people
    Rising temperatures, caused by burning #fossilfuels, disrupt #water cycle. Warmer air holds more water vapour, leading to more intense downpours. Warmer seas provide more energy to hurricanes and typhoons. #ClimateChange also increases drought by causing more evaporation from soil, and shifting rainfall. theguardian.com/world/2025/jan

  17. Really needed something more positive after the previous shocker of a read:

    From cod logs to frog bogs: we catalogued 400 ways to help species survive a warmer world

    theconversation.com/from-cod-l

    #biodiversity #WaterCycle

  18. @koen_hufkens @biodiversity from the abstract “.. mean transit times of water through aboveground vegetation vary from ~5 days in croplands to ~18 days in evergreen needleleaf forests, with a global median of 8.1 days. In herbaceous..land-cover types with comparatively low water storage &high seasonal water use, such as grasslands, the water stored in biomass may be.. transiting in less than one day. .. plants store little water compared to other pools..”
    #ecohydrology #ecology #watercycle

  19. "Rising temperatures are changing the way #water moves around our planet, wreaking havoc on the #WaterCycle."

    This leads to both ferocious #floods and devastating #droughts.

    "The real question isn’t if we should do something about it — it’s how quickly we still can."

    theconversation.com/relentless