#aquifer — Public Fediverse posts on home.social

💧🌏 Greg Cocks @[email protected] · 2026-08-11 · 03:35 UTC

Classification And Conceptualization Of Karst Recharge Processes Through Spectral And Change Point Analysis Of Drip Water Dynamics
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https://doi.org/10.1029/2025WR042816 <-- shared paper
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H/T @ Danyang Sun | UNSW-PhD student
“… [The authors] analysed one year of drip water monitoring data from 46 monitoring sites across six karst regions in southeastern Australia. By integrating fast Fourier analysis, cross-wavelet transform and change point analysis, [they] identified five characteristic recharge behaviours and developed a conceptual framework linking temporal drip dynamics with recharge mechanisms. [They] hope this framework will contribute to a better understanding of recharge heterogeneity in karst systems and support future groundwater research under a changing climate…”
#karst #Australia #water #hydrology #underground #subsurface #recharge #dynamics #spectral #changepoint #cave #dripwater #analysis #spatiotemporal #groundwater #research #climatechange #extremeweather #flow #storage #vadose #epikarst #watertable #aquifer #percolation #rainfall #precipitation #climate #lithology #geology #spatialanalysis

#karst #australia #water #hydrology #underground #subsurface

💧🌏 Greg Cocks @[email protected] · 2026-07-21 · 03:13 UTC

Impact of River Morphology on River–Groundwater Exchange in Braided River Systems
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https://doi.org/10.1111/gwat.70092 <-- shared paper
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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…”
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“Coupled models of two braided rivers with real, pre- and postflood event morphologies are studied for river–groundwater exchange changes…”
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“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

💧🌏 Greg Cocks @[email protected] · 2026-07-09 · 05:27 UTC

Statistical Characterization Of High Flow Volumes Across The Conterminous United States Supporting Managed Aquifer Recharge
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https://doi.org/10.1029/2025WR041955 <-- shared paper
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https://www.latimes.com/environment/story/2025-06-24/california-2024-groundwater-report <-- shared media article
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#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

Eugene @[email protected] · 2025-11-08 · 18:30 UTC

💧 Exploring how contaminated mine waters behave in a carbonate aquifer — through the lens of metasomatic zoning and thermodynamic #geochemical modeling.

Using #PHREEQC simulations, data analysis in #RStats, and geospatial visualization in #QGIS, I’m studying how mine drainage transforms groundwater systems and mineral equilibria over time.

📘 The draft version (v0.75) of my monograph on this topic has already been downloaded 550+ times on #Zenodo — showing how relevant this issue has become for both science and environmental policy.

It’s independent research that links theory, modeling, and practical hydrogeochemical assessment — focused on the long-term impact of mine waters in the Kryvyi Rih region.

🔗 Read or download:
https://zenodo.org/records/16741148

#Geochemistry #Groundwater #MineWater #EnvironmentalGeochemistry #Hydrogeology #WaterPollution #Metasomatism #OpenScience #IndependentResearch #EnvironmentalDataScience #Aquifer #HeavyMetals #Sustainability #SvystunovaGully

#geochemical #phreeqc #rstats #qgis #zenodo #geochemistry

💧🌏 Greg Cocks @[email protected] · 2025-10-30 · 19:07 UTC

Building Damage Risk In Sinking Indian Megacities
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https://doi.org/10.1038/s41893-025-01663-0 <-- shared paper
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https://doi.org/10.5194/isprs-annals-X-G-2025-613-2025 <-- shared paper
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https://www.downtoearth.org.in/urbanisation/writing-on-the-wall-groundwater-exploitation-is-triggering-subsidence-in-indo-gangetic-plain-90523 <-- shared media article
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#GIS #spatial #mapping #spatialanalysis #India #subsidence #risk #hazard #groundwater #depletion #exploitation #pumping #sinking #overpumping #aquifer #watermanagement #structural #damage #infrastructure #cost #residential #publicsafety #economics #engineering #construction #buildingcodes #remotesensing #model #modeling #satellite #earthobservation #elevation #megacities #city #cities #urban #differential #settlement #planning #policy #mitigation #maintainence #inSAR #verticallandmovement #VLM #engineeringgeology #geostatistics #flood #flooding #sediment

#gis #spatial #mapping #spatialanalysis #india #subsidence

💧🌏 Greg Cocks @[email protected] · 2025-09-08 · 21:59 UTC

Humanity Is Rapidly Depleting Water And Much Of The World Is Getting Drier
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https://www.latimes.com/environment/story/2025-09-03/global-drying-groundwater-depletion
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https://doi.org/10.1126/sciadv.adx0298
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#GIS #spatial #mapping #GRACE #FO #satellite #remotesensing #earthobservation #hydrology #water #waterresources #mining #overpumping #groundwater #depletion #global #watermanagement #terrestrial #waterstorage #TWS #freshwater #availibility #drought #climatechange #agriculture #farming #continentaldrying #wateruse #population #residential #cost #economics #runoff #glacier #glacial #aquifer

#gis #spatial #mapping #grace #fo #satellite

💧🌏 Greg Cocks @[email protected] · 2025-05-13 · 05:57 UTC

REGIS II - The Hydrogeological Model [Nederlands]
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https://www.dinoloket.nl/en/regis-ii-the-hydrogeological-model <-- shared project/data overview 1
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https://www.dinoloket.nl/en/subsurface-models/map <-- shared web mapping site
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https://basisregistratieondergrond.nl/inhoud-bro/registratieobjecten/modellen/regis-ii-hydrogeologisch-model-hgm/#:~:text=REGIS%20II%20is%20een%203D,lagen%20in%20de%20ondergrond%20zijn <-- shared project/data overview 2
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#GIS #spatial #mapping #geology #hydrogeology #Nederland #Holland #Dutch #wells #boreholes #data #core #lithology #REGISII #hydrogeological #model #spatialanalysis #water #hydrology #aquifer #aquitard #opendata #digital #sedimentology #hydrologic #pumping #tests #hydraulic #conductivity #transmissivity #geophysics

#gis #spatial #mapping #geology #hydrogeology #nederland

DoomsdaysCW @[email protected] · 2024-10-19 · 15:37 UTC

Ha'Kamwe' Background information from #SacredLand. #NoLithiumMining! #ProtectHaKamwe!

"Ha’Kamwe’ is a naturally occurring hot spring in the #BigSandyRiver basin where the #Mojave and #Sonoran deserts meet in what is now known as #Arizona. Ha’Kamwe’ is a sacred healing place for the Hualapai Tribe. This important cultural and ecological site is threatened by a proposed #LithiumMine, as a subsidiary of the Australian company Hawkstone Mining Ltd. seeks permission to explore and drill on three sides of the spring, which would destroy cultural sites and block access to the oasis for desert #wildlife. Visiting the site with a reporter from the Phoenix New Times, Hualapai Tribe Director of Natural Resources, Richard Powskey, said, 'This spring is a place for healing and medicine and other things that they have here. Our people are buried all through here. There’s a grave just on the other side of this hill right here.'"

[...]

"At a Wikieup community information session in 2021 many of the 100 attendees were concerned that the proposed mine would drain too much water from this already drought-prone area. Caretaker Ivan Bender feels that the waterflow of the well that feeds Ha’Kamwe’ has already decreased due to the company’s drilling. There is a dispute between the company, the Tribe, and local ranchers regarding how shallow the water table is, with those who live in the area concerned that drilling could easily puncture the #aquifer.

"In the early 2000s a power plant was proposed in the area and though it was never built the Environmental Impact Statement for that project found 'the discharge from Cofer Hot Spring would be reduced, and possibly cease, as a result of groundwater withdrawal from the volcanic aquifer.'

"The #HulapaiTribe is concerned the proposed lithium exploration activity would deplete the spring as well.

"In April of 2021 the #Hualapai Tribe passed a resolution against the mine. 'The Hualapai Tribal Council strongly objects to any further permitting of surface or subsurface disturbances within the #SandyValley Lithium mining claim area, which will result in devastating impacts to significant cultural and spiritual resources; will threaten long-term tribal water rights and quality; will cause irreparable harm to the Tribe’s ability to continue cultural activities and to pursue economic development of Cholla Canyon Ranch, and will result in long term ecological destruction of a fragile desert environment, including plant and animal species with cultural significance. Further, should an open pit mine ever be permitted, it would create enormous public health issues caused by pollution, dust, noise, and overall safety concerns caused by having such a mine immediately adjacent to Hualapai land, as well as severe visual impacts.'

"The Inter-Tribal Association of Arizona, an association of 21 tribal governments in Arizona, which provides a forum for tribal governments to advocate for national and regional tribal concerns and to join in united action to address issues, passed a similar resolution.

"The Hualapai Tribe is demanding that the BLM develop a full Environmental Impact Statement as required by the National Environmental Policy Act. This would require a thorough examination of issues protected by the American Indian Religious Freedom Act. The Tribe asserts that these concerns were not adequately addressed in the published Environmental Assessment: “The BLM’s position as indicated in the EA implies that academically-based western science approaches to research take precedence over traditional #Indigenous knowledge. This position is unacceptable and is not in keeping with the requirement to make a good faith effort to identify cultural resources.'

"In January 2023, #Earthjustice collected and submitted 31,671 letters demanding the BLM conduct a full Environmental Impact Statement.

What You Can Do

"Sign up to support The Campaign to Protect Ha’Kamwe’ and follow the issue."

Learn more:
https://sacredland.org/hakamwe/

#HulapaiNation #WaterIsLife #DefendTheSacred #NoLithiumMining #HawkstoneMining #ArizonaLithium #WikieupArizona #ProtectTheSacred #NavajoTransitionalEnergyCompany