#sediment — Public Fediverse posts on home.social

💧🌏 Greg Cocks @[email protected] · 2026-08-18 · 03:01 UTC

Widespread Landslide Activity in an Extreme Wet Season and Implications for Regional Sediment Management, Eastern San Francisco Bay Area, California
--
https://doi.org/10.1029/2026EA005227 <-- shared paper
--
H/T @amy East, Ph.D., P.G. | Researcher integrating geoscience and climate-change preparedness
“[This paper (link above) is] a collaboration with [the H/T’s] colleagues from [the] USGS Landslide Hazards Program, who mapped over 8,900 landslides in the eastern San Francisco Bay Area during an extreme wet winter.
How much sediment does such an extreme winter produce, from landslides or in stream discharge? How does that compare with long-term sediment production and landscape denudation rates?
[They] f[o]nd that landslide sediment mobilization is comparable to long-term denudation rates, emphasizing the role of extreme events in long-term sediment production. However, one extreme wet year has a negligible effect toward counteracting ongoing problems of sediment deficit in San Francisco Bay: to keep pace with sea-level rise, extreme wet conditions would need to occur in 50 out of the next 75 years…”
--
"PLAIN LANGUAGE SUMMARY: Watersheds will likely produce more sediment in a warmer future with more extreme rain, primarily through landslides in steep terrain. This study examines how an extremely wet season affected sediment production and transport in the eastern San Francisco Bay area, California. By mapping and measuring 8,928 landslides, [they] found that rare, extreme rain conditions are likely responsible for the vast majority of long-term hillslope erosion rates in this region. However, due to long residence times for sediment on hillslopes and in stream channels, a maximum of 1%–2% of that newly mobilized landslide material could have potentially contributed to sediment carried by streams into the Bay that year. Even extremely wet years cannot provide enough sediment for Bay wetlands and shorelines to keep pace with rising sea levels. To meet the demand for sediment in the Bay, such extreme rain and sediment production would need to occur in most years, which is not realistic. To restore wetlands and protect shorelines, managers likely will need to supplement the coastal system with repurposed dredged material…”
#massmovement #soil #water #hydrology #hydrography #geology #soils #geomorphometry #hydrogeomorphology #geomorphology #landslide #masswasting #climatechange #extremeweather #precipitation #rainfall #weather #climate #mapping #engineeringgeology #mapping #SanFrancisco #BayArea #USA #California #fedscience #fedservice #oublicgood #sediment #stream #discharge #extremewinter #sealevelrise #SLR #hillslope #erosion #sedimentation #tidal #wetlands #coast #coastline #shoreline #GIS #spatial #spatialanalysis #spatiotemporal #watershed
#USGS | #USGSLandslideHazardsProgram

#massmovement #soil #water #hydrology #hydrography #geology

💧🌏 Greg Cocks @[email protected] · 2026-07-28 · 05:07 UTC

Busy Beavers - The Turbidity Signature Of Ecosystem Engineers At Work
--
https://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

nationalparks @[email protected] · 2026-07-27 · 19:12 UTC

Redwood National and State Parks (near Redwood Creek). Learn more about the park at https://www.nps.gov/redw/index.htm and https://www.nps.gov/redw/learn/nature/birds.htm and https://npshistory.com/publications/redw/nrr-2021-2314.pdf and #nps #nationalparks #ocean #publiclands #photography #landscapephotography #coast #pacific #redwood Image credit Kurt Angersbach / Westernlabs #waves #tide #geology #sediment #sandbar #birds #shore #summer #pelican

#nps #nationalparks #ocean #publiclands #photography #landscapephotography

💧🌏 Greg Cocks @[email protected] · 2026-07-14 · 03:00 UTC

Eager Beavers - Rodents Engineer Czech Wetland Project After Years Of Human Delay [ecosystem engineers]
--
https://www.theguardian.com/world/2025/feb/11/beavers-save-czech-taxpayers-by-flooding-ex-army-training-site <-- shared technical media article
--
https://en.wikipedia.org/wiki/Beaver-engineered_dam_in_the_Czech_Republic <-- shared wiki technical page
--
https://phys.org/news/2025-02-fine-beavers-czech-treasury-million.html <-- shared technical article
--
https://youtu.be/GSTw8qmBP4Y?si=XK2Iy2pAltW91flj <-- 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

💧🌏 Greg Cocks @[email protected] · 2026-07-10 · 22:36 UTC

Compound Hydrogeomorphic Cascades And Rapid Upstream To Downstream Hazard Coupling In The Eastern Himalaya
--
https://doi.org/10.1038/s41598-026-52915-8 <-- shared paper
--
https://doi.org/10.1007/s11600-022-00943-z <-- shared paper
--
H/T @Kuldeep Dutta | Geology-Earth Science
“… In hilly regions transitioning rapidly to low gradient alluvial plains, localized hydrometeorological triggers can instantly scale into devastating basin wide disasters. This study dissects the September 2020 cascading hazard in parts of the Arunachal Pradesh-Assam corridor to quantify the rapid coupling between upstream hillslopes and downstream floodplains.
Check out the [attached graphical abstract figure] for an integrated visual workflow of the entire disaster continuum from hillslope failure to floodplain transformation...”
--
“Extreme precipitation in the Eastern Himalaya is increasingly associated with coupled hillslope-floodplain hazards. This study examines the 17th-18th September 2020 rainfall event in Arunachal Pradesh initiating landslides and its downstream impacts in Assam, India, using multi-sensor satellite data and long-term rainfall records. Sentinel-2 imagery was used to map landslides and debris flows, Sentinel-1 SAR data to delineate flood extent, and IMD gridded rainfall (1996–2020) to analyse rainfall spell characteristics. The event triggered widespread slope failures, localized landslide damming, and a subsequent breach, generating sediment-laden flows that inundated ~ 100 km² of the Dhemaji floodplain. A backscatter-derived Relative Flood Volume Index (RFVI) indicates spatial variability in inundation intensity, although it does not represent absolute flood volume. Rainfall analysis suggests that antecedent wetness from preceding spells preconditioned slopes, while peak daily rainfall (> 170 mm day−1) initiated landsliding. Power-law scaling shows negligible dependence of intensity on duration (R2 ≈ 0.0004), whereas cumulative rainfall exhibits a stronger relationship with duration (R2 ≈ 0.54). These results indicate distinct roles of rainfall intensity and accumulation in controlling landslide initiation and downstream flooding, respectively, highlighting the importance of compound rainfall forcing in rapid hydrogeomorphic cascades…”
#EarthScience #RemoteSensing #Himalayas #NaturalHazards #ClimateChange #ScientificReports #GeospatialAnalysis #DisasterMitigation #Landslide #trigger #Flooding #massmovement #extremeweather #engineeringgeology #floodplain #innundation #hillslope #fluvial #pluvial #alluvial #sediment #sedimentation #hydrometeorology #ArunachalPradesh #Assam #India #Brahmaputra #risk #hazard #geology #engineeringgeology #remotesensing #earthobservation #spatialanalysis #spatiotemporal #disaster #hydrogeomorphology #workflow

#earthscience #remotesensing #himalayas #naturalhazards #climatechange #scientificreports

nationalparks @[email protected] · 2026-07-02 · 17:16 UTC

Redwood National and State Parks yesterday, with the effects of tide, moon phase, and sediment movement on display in one of the coastal areas of the park. Learn more about the park at https://www.nps.gov/redw/index.htm and more about the geology at https://npshistory.com/publications/redw/nrr-2021-2314.pdf and #nps #nationalparks #ocean #publiclands #photography #landscapephotography #coast #pacific #redwood Image credit Kurt Angersbach / Westernlabs #waves #tide #geology #sediment #morphodynamic #moon #summer

#nps #nationalparks #ocean #publiclands #photography #landscapephotography

💧🌏 Greg Cocks @[email protected] · 2026-06-23 · 04:43 UTC

Rock Weathering Can Counteract River CO2 Emissions Induced By Permafrost Thaw
--
https://doi.org/10.1038/s41586-026-10664-8 <-- shared paper
--
H/T @aaron Bufe
“[The researchers] measured carbon emissions and water chemistry in 50 headwater rivers draining 780,000 km² of the Tibetan Plateau.
The rivers flow in landscapes underlain by continuous permafrost and landscapes in which the permafrost has retreated since the last glacial maximum. They collect[ed] organic carbon from soils and dissolved inorganic carbon that is fixed by rock-weathering.
Where the permafrost cover is continuous, rivers emit CO2 from degrading (permafrost) soil carbon. Weathering reactions in these catchments are relatively slow.
In landscapes with (almost) no permafrost, carbon fluxes from weathering are faster than CO2 emissions from rivers.
Thus, as permafrost landscapes transition to landscapes without permafrost cover, chemical weathering reactions may play an ever more important role in riverine carbon cycling.
Interestingly, weathering can affect the carbon cycle in different ways. Where sulfide minerals are present, weathering reactions can emit CO2. Where silicate minerals dominate, weathering draws down CO2 from the atmosphere…”
--
“Climate-induced permafrost thaw unlocks large stores of organic carbon that are mineralized and emitted as carbon dioxide (CO2) from rivers to the atmosphere. Concurrently, warming and permafrost thaw can increase mineral weathering rates, thus affecting the release and sequestration of inorganic carbon. Yet how these biological and geological carbon cycles interact and jointly affect CO2 dynamics (emission compared with drawdown) in permafrost rivers remains unknown. Here [they] combine[d] CO2 emissions, organic and inorganic solute concentrations, dual carbon isotopes (δ13C–Δ14C) and geochemical modelling to infer how permafrost thaw may affect river biogeochemistry over decades to centuries across the Qinghai–Tibet Plateau. Leveraging a gradient of thermal permafrost degradation, we find that river CO2 emissions decline, whereas solute fluxes from rock weathering increase with decreasing permafrost cover. Across this region, net CO2 drawdown fluxes from rock weathering are about 35% of river CO2 emissions, varying from around 15% in catchments with continuous permafrost to more than 100% in catchments with discontinuous or isolated permafrost. Thus, carbon fluxes from chemical weathering may become increasingly important with ongoing permafrost thaw, potentially even outpacing river CO2 emissions. [Their] findings disentangle the interplay between biological and geological carbon fluxes that are important for the cryosphere and the global carbon cycle…”
#permafrost #melting #thaw #climatechange #warming #Tibet #TibetanPlateau #Qinghai #water #hydrology #carbonemissions #CO2 #emissions #waterchemistry #waterquality #cryosphere #sediment #sedimentation #weathering #rock #carbon #river #riverine #carboncyling #geochemistry #biology #geology #soil

#permafrost #melting #thaw #climatechange #warming #tibet

💧🌏 Greg Cocks @[email protected] · 2026-06-18 · 03:05 UTC

Environment Auckland [New Zealand] Data Portal [incl. spatial]
--
https://environmentauckland.org.nz/Data <-- shared link to data portal
--
https://ourauckland.aucklandcouncil.govt.nz/news/2025/09/soe-report-2025/ <-- shared 2025 report link
--
https://coastalmonitoringac.netlify.app/ <-- shared Auckland Council Beach Monitoring Program page
--
[ancetodal: a VERY long time ago I was an intern Engineering Geologist at the Auckland Council, although it was ARC back then 😊 ]
H/T @David Wright | Senior Field Hydrologist, Hydrology And Data Management Team
“This portal contains primary data from Auckland Council’s State of the Environment monitoring programmes.
Te Kaunihera o Tāmaki Makaurau / Auckland Council's Environmental Evaluation and Monitoring Unit carries out environmental monitoring across the region. [They] have been collecting information about Auckland’s environment for more than 30 years and have more than 1,000 monitoring sites across the region. [Their] comprehensive monitoring programmes build a picture of the health of Auckland’s environment, track changes and identify issues...”
#opendata #Auckland #NewZealand #GIS #spatial #mapping #dataportal #localgovernment #publicservice #publicgood #ratepayers #StateoftheEnvironment #monitoringprogrammes #environment #water #hydrology #waterquality #waterresources #intergration #environmentalmonitoring #airquality #coast #coastal #development #construction #engineering #sediment #biology #biodiversity #ecology #habitat #monitoring #spatialanalysis #spatiotemporal #estuary #river #stream #marine #mitigation #identification
@Auckland Council

#opendata #auckland #newzealand #gis #spatial #mapping

💧🌏 Greg Cocks @[email protected] · 2026-06-13 · 05:44 UTC

Late Miocene Euphrates River Drained Into A Partially Desiccated Eastern Mediterranean
--
https://doi.org/10.1038/s41561-026-01962-x <-- shared paper
--
[the paleogeographic reconstruction is outstanding, including the strength and information conveyed so well in that figure, kudos!]
H/T @lina Jakaitė-Darkšė
“Although the Euphrates River - stretching ~3,000 km across Western Asia - has shaped the region’s geology for millions of years, the timing of its origin and the evolution of its course remain enigmatic. So far, two contrasting hypotheses have been proposed to explain the fluvial system’s Late Neogene path: termination in Anatolia at a palaeo-lake or the Mediterranean, or a southeastward continuation to Arabia. Here [they] use seismic-reflection and topographic data to show that two previously identified sedimentary accumulations - deposited during the terminal phase of the Late Miocene Messinian salinity crisis - resulted from dual riverine systems that drained into a partially desiccated eastern Mediterranean before avulsing toward the Persian Gulf and converging to form the modern Euphrates River. From probabilistic sediment-budget modelling, [they] show that although the latest Messinian drainage basins were an order of magnitude smaller than their present-day extents, the total palaeo-discharge exceeded that of the modern Tigris, Euphrates and Nile rivers combined, indicating intense palaeo-precipitation and high palaeo-relief. These results suggest that plate-margin deformation both controlled the fluvial avulsions that diverted the Euphrates River from the Anatolian–Eurasian Plate to the Arabian Plate, and established the conditions necessary for the development of the alluvial Fertile Crescent…”
#water #hydrology #hydrography #paleogeography #Euphrates #river #Miocene #reconstruction #spatialreconstruction #geology #change #erosion #MiddleEast #spatialanalysis #spatiotemporal #Neogene #Anatolia #paleolake #Mediterranean #Arabia #Messinian #remotesensing #model #modeling #topography #hydrogeomorphology #geomorphology #PersianGulf #sediment #paleodischarge #volume #Tigris #elevation #platetectonics #structuralgeology #platemargin #fluvial #avulsion #FertileCrescent

#water #hydrology #hydrography #paleogeography #euphrates #river

💧🌏 Greg Cocks @[email protected] · 2026-05-22 · 23:46 UTC

Human Disturbances Dominated The Unprecedentedly High Frequency Of Yellow River Flood Over The Last Millennium
--
https://doi.org/10.1126/sciadv.adf8576 <-- shared paper
--
https://www.smithsonianmag.com/smart-news/3000-years-humans-alterations-chinas-yellow-river-created-catastrophic-situation-exists-today-180951815/ <-- shared technical article
--
#humanimpacts #anthropogenic #water #hydrography #hydrology #flood #flooding #river #catchment #engineering #riverine #YellowRiver #China #climatechange #extremeweather #floodhazard #risk #hazard #history #historic #sediment #reconstruction #spatialanalysis #spatiotemporal #levee #breaches #Holocene #geologic #fluvial #sustainability #planning #management #watermanagement #stress #change #dating #radiocarbon #OSL #sampling #paleoflood #overtopping #slackwater #sedimentation #model #modeling #embankment #riverstage #dams

#humanimpacts #anthropogenic #water #hydrography #hydrology #flood

💧🌏 Greg Cocks @[email protected] · 2026-05-15 · 18:21 UTC

Influence Of Inherited Rifted Margin Architecture On Continental Collision Dynamics
--
https://doi.org/10.1029/2025GC012681 | https://www.researchgate.net/publication/404299243_Influence_of_Inherited_Rifted_Margin_Architecture_on_Continental_Collision_Dynamics <-- shared paper
--
#tectonics #geoscience #geology #mountainbuilding #orogeny #subduction #rifting #Alps #Pyrenees #Caucasus #mountains #numericalmodelling #structuralgeology #platetectonics #Europe #Asia #continents #rockmemory #continentalcollision #model #modeling #spatialanalysis #spatiotemporal #crust #mantle #reconstruction #sediment #erosion #rift #wilsoncycle #accretion #lithosphere

#tectonics #geoscience #geology #mountainbuilding #orogeny #subduction

💧🌏 Greg Cocks @[email protected] · 2026-05-15 · 18:02 UTC

Water Velocity And Discharge From Tidal Freshwater Creeks In Forested And Herbaceous Wetlands
--
https://doi.org/10.1007/s12237-026-01690-w <-- shared paper
--
#water #hydrology #tide #tidal #ecosystem #wildlife #fish #fisheries #nursery #nutrients #trophicenergy #discharge #ColumbiaRiver #Oregon #Washington #USA #fluvial #tidalfreshwater #TFW #habitat #restoration #flowregime # herbaceous #forested #wetland #marsh #aquatic #sediment #sedimentation #estuary #inundation #monitoring #measurement #velocity #discharge #volume #spatialanalysis #spatiotemporal #river #riverine #hydraulic #pluvial #precipitation #upstream #subtidal #wavelet #tidalcreek #AcousticDopplerCurrentProfiler #instrumentation #elevation #spatial #mapping

#water #hydrology #tide #tidal #ecosystem #wildlife

nationalparks @[email protected] · 2026-04-14 · 19:40 UTC

Redwood Creek and the Pacific Ocean, Redwood National and State Parks. Learn more at https://www.nps.gov/redw/index.htm and https://www.nps.gov/articles/coastal-sediments-material-size.htm and #nps #nationalparks #publiclands #photography #forest #trees #sun #clouds #spring Image credit Kurt Angersbach / Westernlabs #california #redwood #colors #landscapephotography #travel #coast #ocean #research #beach #geology #tides #cawx #sand #waves #wind #river #creek #sediment #rock

#nps #nationalparks #publiclands #photography #forest #trees

💧🌏 Greg Cocks @[email protected] · 2026-04-09 · 04:45 UTC

The New Glacial Geomorphological Map From New Zealand [2021]
--
https://blogs.egu.eu/divisions/cr/2021/04/02/new-zealand-geomorphology-glaciers/ <-- shared (2021) technical article/blog, Cryospheric Sciences (CR) Division, @European Geosciences Union
--
https://doi.org/10.1080/17445647.2021.1876777 <-- shared (2020) paper
--
#GIS #spatial #mapping #NewZealand #geomorphology #NewZealand #SouthernAlps #Quaternary #glaciation #landscape #hydrogeomorphology #water #ice #sediment #glacier #glacial #cryosphere #spatialanalysis #geology #Ahuriri #AhuririRiver #paleolake #WaitakiRiver #basin #remotesensing #postglacial #moraine #glaciology #cryosphere #processes #morphology #LastGlacialMaximum #geochronology

#gis #spatial #mapping #newzealand #geomorphology #southernalps

💧🌏 Greg Cocks @[email protected] · 2026-03-31 · 03:41 UTC

Global Atlas Will Track Human And Climate Impact On River Systems
--
https://news.cornell.edu/stories/2026/03/global-atlas-will-track-human-and-climate-impact-river-systems
--
“Rivers are critical resources that affect everything from watersheds to agriculture to energy. But rivers, in turn, have been impacted by humans, often in the form of hydraulic infrastructure such as dams and wells.
A new [Cornell] project… will create a global record that shows how river systems around the world have changed under human influence over the last 75 years…”
#GIS #spatial #mapping #research #spatialanalysis #spatiotemporal #water #waterresources #river #remotesensing #earthobservation #climatechange #climate #change #resources #humanimpacts #survey #monitoring #hydraulic #infrastructure #dams #wells #engineered #canals #global #spatialdata #opendata #history #anthropocene #freshwater #DARE #sediment #discharge #transport #temperature #fish #biodiversity #atlas #ecology #ecosystems #riverine #delta #model #modeling #machinelearning #AI
#CornellUniversity | #CornellDuffieldCollegeofEngineering

#gis #spatial #mapping #research #spatialanalysis #spatiotemporal

💧🌏 Greg Cocks @[email protected] · 2026-03-06 · 04:34 UTC

Karst Flash Floods - An Example From The Dinaric Karst (Croatia)
--
https://doi.org/10.5194/nhess-6-195-2006 <-- shared (older) paper
--
#flood #flooding #pluvial #fluvial #subsurface #risk #hazard #naturalhazard #disaster #flashflood #infrastructure #damage #building #destabilisation #foundations #karstburst #Marina #Dinaric #Croatia #extremeweather #climatechange #intense #prolonged #rainfall #precipitation #speed #fast #caves #conduits #fractures #aquifers #water #hydrology #groundwater #hydrogeology #waterpressure #sinkhole #subsidence #massmovement #landslide #monitoring #mapping #geology #engineeringgeology #hydroseismic #humanimpacts #lossoflife #death #karstterrain #springs #debris #sediment #cavities #riskassessment #Grazalema #Andalusia #Cadíz #Spain #StormLeonard #emergencymanagement #planning

#flood #flooding #pluvial #fluvial #subsurface #risk

💧🌏 Greg Cocks @[email protected] · 2026-02-25 · 00:10 UTC

Growing Meltwater Reservoirs – Glacial Lakes Are Both A Resource And A Habitat Worthy Of Protection
--
https://www.uni-potsdam.de/en/headlines-and-featured-stories/detail/2026-01-28-growing-meltwater-reservoirs-glacial-lakes-are-both-a-resource-and-a-habitat-worthy-of-protection <-- shared technical article
--
https://doi.org/10.1038/s44221-025-00578-6 <-- shared paper
--
https://github.com/geveh/LakeVolumes <-- shared GitHub ‘code base’
--
#glaciallakes #GLOF #geomorphology #glaciers #hydrology #waterresources #glacier #melting #retreating #hydrogeomorphology #GIS #spatial #mapping #global #spatialanalysis #global #cryosphere #ice #water #hydrology #mountains #highaltitude #naturalresource #freshwater #reservoir #sediment #sedimentation #spatiotemporal #remotesensing #earthobservation #landcover #Arctic #coastal #meltwater #lake #longevity #watersecurity #risk #hazard #ecosystem #habitat #naturalhazard #planning #tourism #economy #usecase #watersupply #worldwide #population #demographics #glacial
@University of Potsdam | @University Of Leeds

#glaciallakes #glof #geomorphology #glaciers #hydrology #waterresources

💧🌏 Greg Cocks @[email protected] · 2026-02-19 · 05:18 UTC

Turbidity And Fecal Indicator Bacteria In Recreational Marine Waters Increase Following The 2018 Woolsey Fire [incl. remote sensing]
--
https://doi.org/10.1038/s41598-022-05945-x <-- shared paper
--
https://science.nasa.gov/earth/earth-observatory/fire-led-to-spike-in-coastal-bacteria-murky-waters-149527/ <-- shared (NASA) technical / earth observation article
--
https://yubanet.com/california/woolsey-fire-led-to-spike-in-bacteria-cloudiness-in-coastal-waters/ <-- shared technical article
--
https://ui.adsabs.harvard.edu/abs/2022AGUFMGC55H0328L/abstract <-- shared (Harvard) technical article
--
https://www.jpl.nasa.gov/news/california-fire-led-to-spike-in-bacteria-cloudiness-in-coastal-waters/ <-- shared (NASA) TECHNICAL ARTICLE
--
#GIS #spatial #mapping #earthobservation #remotesensing #wildfire #runoff #sediment #marine #ocean #coast #coastal #waterquality #turbidity #bacteria #fecal #coliform #enterococcus #WoolseyFire #California #USA #statistics #regression #geostatistics #insitu #sampling #burnarea #plume #ecosystems #habitat #publichealth #environmentalhealth #monitoring

#gis #spatial #mapping #earthobservation #remotesensing #wildfire

💧🌏 Greg Cocks @[email protected] · 2026-02-11 · 01:56 UTC

Late Quaternary Variations in the Level of Paleo-Lake Malheur, Eastern Oregon
--
https://doi.org/10.1006/qres.1998.2005 <-- shared paper
--
https://www.oregonencyclopedia.org/articles/pleistocene-pluvial-lakes/ <-- shared technical article, “Pleistocene Pluvial Lakes” [OR]
--
https://en.wikipedia.org/wiki/Malheur_Lake <-- shared Wikipedia page
--
#EasternOregon #water #hydrology #geology #surfacewater #paleolake #LakeMalheur #Oregon #SouthernOregon #USA #endorheicbasin #endorheic #quaternary #fluvial #pluvial #fluvial #lacustrine ##Quaternary #Pleistocene #Holocene #PaleoLake #sediment #sedimentary #beaches #gravel #geology #sedimentology #tephra #volcanism #spatialanalysis #spatiotemporal #geologichistory #spatial #mapping #sampling #stratigraphy #dating #radiocarbon #chronology

#easternoregon #water #hydrology #geology #surfacewater #paleolake

💧🌏 Greg Cocks @[email protected] · 2026-02-05 · 06:35 UTC

Climatic And Anthropogenic Controls On Late Holocene Sediment Transport To The Gulf Of Mexico By The Mississippi River
--
https://doi.org/10.1016/j.earscirev.2026.105401 <-- shared paper
--
#water #hydrology #hydrography #humanimpacts #human #settlement #anthropogenic #levees #engineering #spatialanalysis #spatialtemporal #erosion #weathering #Mississippi #River #Sediment #Provenance #Zircon #grainsize #alluvial #alluvium #hydrogeomorphology #headwater #coast #coastal #delta #geology #Holocene #geochemistry #Sr #Nd #isotope #Strontium #Neodymium #detrital #climate #GulfofMexico

#water #hydrology #hydrography #humanimpacts #human #settlement

Stefan F. Wirth @[email protected] · 2026-02-03 · 18:28 UTC

RE: https://mastodon.social/@sflorg/116003437911970681

This interesting #study is based on ancient lake #sediment #analyses from the #Bogotá #Basin. It proves that the existing #climatemodels about the #Pliocene were underestimated regardung tropical regions. This allows prognoses, according to which also the global warming of today may bring more heat in some #tropicalzones than expected.
See science communication article below.
© this text #StefanFWirth 2026