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#waterresources

2 posts2 participants0 posts today
Public
Dr Micha Campbell

There's only one month left for open comments on our current preprint, which looks at rainfall recharge thresholds before and after a fire.

We are very interested to get some community input! If you are interested in #groundwater #waterResources #karstHydrology #hydrology, please check it out.

egusphere.copernicus.org/prepr

@Andbaker

egusphere.copernicus.orgRainfall recharge thresholds decrease after an intense fire over a near-surface cave at Wombeyan, AustraliaAbstract. Quantifying the amount of rainfall needed to generate groundwater recharge is important for the sustainable management of groundwater resources. Here, we quantify rainfall recharge thresholds using drip loggers situated in a near-surface cave: Wildman’s cave at Wombeyan, southeast Australia. In just over two years of monitoring, 42 potential recharge events were identified in the cave, approximately 4 m below land surface which comprises a 30° slope with 37 % bare rock. Recharge events occurred within 48 hours of rainfall. Using daily precipitation data, the median 48 h rainfall needed to generate recharge was 19.8 mm, without clear seasonal variability. An intense experimental fire experiment was conducted 18 months into the monitoring period: the median 48 h rainfall needed to generate recharge was 22.1 mm before the fire (n=22) and 16.4 mm after the fire (n=20), with the decrease in rainfall recharge most noticeable starting three months after the fire.. Rainfall recharge thresholds and number of potential recharge events at Wildman’s Cave are consistent with those published from other caves in water-limited Australia. At Wildman’s Cave, we infer that soil water storage, combined with the generation of overland flow over bare limestone surfaces is the pathway for water movement to the subsurface via fractures and that these determine the rainfall recharge threshold. Immediately after the fire, surface ash deposits initially retard overland flow, and after ash removal from the land surface, soil loss and damage decrease the available soil water storage capacity, leading to more efficient infiltration and a decreased rainfall recharge threshold.
Public
💧🌏 Greg Cocks

NASA’s New Satellite Could Change the Way We Farm Forever
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scitechdaily.com/nasas-new-sat <-- shared technical article
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nisar.jpl.nasa.gov/ <-- shared NISCAR page
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youtu.be/ONHTazfGoiM?si=y2n0ab <-- shared overview video
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Precision Agriculture at Scale | Mapping Crops with Advanced Radar | Cutting-Edge Techniques for Crop Identification | Enhancing Crop Forecasts with NISAR Data | Tracking Soil Moisture for Smarter Farming
#GIS #spatial #mapping #farming #agriculture #farmingintelligence #spatialanalysis #spatiotemporal #fedscience #satellite #earthobservation #remotesensing #policy #planning #management #efficiency #radar #planting #irrigation #waterresources #tools #resources #economics #costs #moisture #crops #AI #machinelearning #water #hydrology #NISAR
@nasa | @ISRO | @JPL

Public
💧🌏 Greg Cocks

A Planetary Boundary For Geological Resources - Exploring The Limits Of Regional Water Availability
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phys.org/news/2025-03-planetar <-- shared technical article
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doi.org/10.1126/science.adk531 <-- shared paper
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im-mining.com/2023/04/26/unite <-- shared industry article
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#GIS #spatial #mapping #spatialanalysis #spatiotemporal #global #regional #water #hydrology #waterresources #watersecurity #mine #mining #processing #minerals #criticalmetals #energy #products #services #surfacewater #groundwater #naturalresources #resources #geology #ecosphere #technosphere #watermanagement #sustainability #sustainableuselimit #waterconsumption #industry #production #constraints #mineralproduction #economy #economics #model #modeling #coal #iron #copper #gold

Public
💧🌏 Greg Cocks

Evaluating Drought Risk Of The Red River Of The North Basin Using Historical And Stochastic Streamflow Upstream From Emerson, Manitoba
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pubs.usgs.gov/publication/sir2 <-- shared link to USGS publication
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waterdata.usgs.gov/nwis <-- USGS National Water Information System (NWIS) database - USGS water open data for the Nation
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#GIS #spatial #mapping #deterministic #waterbalance #stochasticweather #model #modeling #RedRiver #USA #Canada #spatialanalysis #spatiotemporal #waterresources #streamgage #NorthDakota #Manitoba #streamflow #flood #flooding #watersupply #agriculture #farming #ecology #drought #extremeweather #meteorology #basin #subbasin #risk #hazard #gauge #flow
@USGS

Public *
💧🌏 Greg Cocks

GIS Corps Is Looking To Help Phreatic With Remote Spatial Volunteers
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phreatic.org/ <-- shared home page
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giscorps.org/become-a-voluntee <-- shared link to volunteer with GIS Corps
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[want to be a part of some super interesting (remote) GIS volunteer work?!]
#GIS #spatial #mapping #volunteer #phreatic #explore #protect #seacaves #Sardinia #cave #caving #Phreatic #GISCorps #Italy #Supramonte #GulfofOrosei #model #3dmapping #environmental #speleology #hypogene #groundwater #waterresources #marine #marinecaves #coast #coastal
@GISCorps @Phreatic

photo - cave exploration & mapping, Sardinia, Italy by Phreatic
photo - cave exploration & mapping, Sardinia, Italy by Phreatic
photo - cave exploration & mapping, Sardinia, Italy by Phreatic
photo - cave exploration & mapping, Sardinia, Italy by Phreatic
Public *
💧🌏 Greg Cocks

Glacier Melt Intensifying Freshwater Loss And Accelerating Sea-Level Rise
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esa.int/Applications/Observing <-- shared technical article
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doi.org/10.1038/s41586-024-085 <-- shared paper
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#GIS #spatial #mapping #GlacierMassBalanceIntercomparison #glacial #glacier #global #cryosphere #regional #freshwater #water #resources #waterresources #watersecurity #sealevel #sealevelrise #SLR #rate #change #spatialanalysis #spatiotemporal #ice #snow #loss #massloss #greenland #antarctic #icesheet #anthropogenic #climatechange #melt #melting #risk #hazard #geohazard #geology #engineeringgeology #marine #terrestrial #ecosystems #watercycle #masschange #insitu #remotesensing #local #observation #model #modeling #projection

map and charts - Global glacier mass changes from 2000 to 2023
charts - Annual and cumulative glacier mass change from 2000 to 2023
satellite image - Chugach Mountains, Alaska - Glaciers in the Chugach Mountains of Alaska. This image, captured by the Copernicus Sentinel-2 mission on 6 October 2017, shows the melting Scott (left), Sheridan (middle) and Childs (right) glaciers feeding lakes and rivers in their forefields.
photo - Golubin Glacier, Kyrgyzstan, 2012
Public
💧🌏 Greg Cocks

Himalayan Snow Lines On The Rise
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earthobservatory.nasa.gov/imag <-- shared NASA technical article
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icimod.org/press-release/snow- <-- shared technical article on Himalaya snow persistence changes
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#GIS #spatial #mapping #Nepal #India #Himalayas #Himalayan #mountains #climatechange #snowpersistence #remotesensing #earthobservation #glacier #glacial #melting #MountEverest #water #hydrology #cryology #snow #ice #waterresources #watersecurity #waterresources #fire #risk #hazard #OLI2 #Landsat #meteorology #weather #annual #precipitation #monsoon #sublimation #temperature #wind #humidity #extremeweather #wildfire #humanimpacts #snowline #newnormal #agriculture #foodsecurity #drought

map - snow anomaly, Nov. '23 to Apr. '24, in and around Nepal / Himalayas
photo - Imja Glacier, Himalayas, Nepal
Landsat image - snowline around Mt Everest - Jan. 2022
Landsat image - snowline around Mt Everest - Jan. 2025
Continued thread
Public
AI6YR Ben

From the article: "“A decision to take summer water from local farmers and dump it out of these reservoirs shows a complete lack of understanding of how the system works and sets a very dangerous precedent,” said Dan Vink, a longtime Tulare County water manager and principal partner at Six-33 Solutions, a water and natural resource firm in Visalia.

“This decision was clearly made by someone with no understanding of the system or the impacts that come from knee-jerk political actions.”"

#agriculture#waterresources#water
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