#aquifer — Public Fediverse posts

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

Recent Upper Colorado River Streamflow Declines Driven by Loss of Spring Precipitation
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http://dx.doi.org/10.1029/2024GL109826 <-- shared 2024 paper
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https://www.sciencedaily.com/releases/2024/08/240816121501.htm <-- shared technical article
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[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

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

Drought-Induced Changes In Groundwater-Surface Water Exchange At Lake Mead Area [Remote Sensing]
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https://doi.org/10.1016/j.ejrh.2025.102996 <-- shared paper
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[disclaimer: the model details / math are way over my head technically - but a good read, regardless]
#water #hydrology #LakeMead #Drought #Impacts #humanimpacts #anthropogenic #Groundwater #SurfaceWater #InSAR #ElasticLoad #Model #WaterStorage #HydraulicConnectivity #modeling #waterresources #earthobservation #remotesensing #spatialanalysis #spatiotemporal #pumping #reservoir #climate #watermanagement #rebound #arid #connectivity #geology #lake #aquifer #subsurface #stressors

Identifying Baseflow Source Areas Using Remotely Sensed and Ground-Based Hydrologic Data and Models
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https://doi.org/10.1002/hyp.70322 <-- shared paper
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#water #hydrology #SierraNevada #California #baseflow #source #snowpack #precipitation #fluvia #pluvial #GIS #spatial #mapping #remotesensing #waterresources #watermanagement #model #modeling #rainfall #recharge #groundwater #streamflow #snowmelt #elevation #spatialanalysis #spatiotemporal #extremeweather #climatechange #mountain #aquifer #watersecurity #hydrologicmodel #earthobservation

💧 Beyond Diffusion: Groundwater as a Rock–Fluid System

Contaminant plumes in groundwater are often seen as passive — just diffusion and advection through porous media.
But what if we treat them as active geochemical fronts instead?

In my recent modeling work, I describe contamination not as a mechanical process, but as a metasomatic transformation — a reaction zone between aggressive mine waters and carbonate aquifers.

Each sector of the aquifer develops its own thermodynamic balance and mineral stability field.
The plume itself becomes a chemical engine — reshaping host rocks, opening new pathways, and shifting the entire water–rock equilibrium.

📘 Draft monograph: https://zenodo.org/records/16741148

🧪 Data and modeling: PHREEQC + R + QGIS

#Geochemistry #Hydrogeology #MineWater #WaterPollution #PHREEQC #Metasomatism #Groundwater #EnvironmentalGeochemistry #IndependentResearch #OpenScience #Aquifer #RStats #FOSS #SvystunovaGully

🌎 Mapping dominant chemical speciation in a polluted carbonate aquifer

In my recent modeling work, I modeled the dominant forms of element speciation in groundwater within a carbonate system.

Beyond pure geochemical curiosity, this approach provides a practical lens:
– it reveals where mineral precipitation is most probable,
– and helps identify zones where remediation can be most effective.

💻 Combining thermodynamic modeling (PHREEQC) with spatial analysis in R and QGIS turns subsurface processes into actionable insights for water-quality management and contamination mitigation.

Two figures below show the modeled distribution of cadmium species across the aquifer and their evolution with dilution

📘 Full details in the draft monograph:
🔗 https://zenodo.org/records/16741148

#Geochemistry #Hydrogeology #PHREEQC #GroundwaterContamination #MineWater #EnvironmentalGeochemistry #Metasomatism #Aquifer #RStats #QGIS #GeospatialAnalysis #OpenScience #IndependentResearch #WaterQuality #Remediation #SvystunovaGully

🔬 Metasomatic Zonation as a Model of Groundwater Contamination

One of the key theoretical bases in my research is the classical metasomatic zonation model (Korzhinskii, 1960s).

I interpret the contamination halo formed by mine waters not as passive dispersion — but as an active metasomatic system, where aggressive fluids drive alteration and re-precipitation reactions within the carbonate aquifer.

Highly mineralized mine waters create a complex interaction front.
Thermodynamic modeling (based on well-monitoring data) allows identification of several geochemical zones partly analogous to Korzhinskii’s metasomatic sequence.

📊 The image shows my preliminary zoning concept.

📘 All calculations and hypotheses are detailed in the draft monograph:
🔗 https://zenodo.org/records/16741148

#Geochemistry #Hydrogeology #PHREEQC #Metasomatism #MineWater #GroundwaterContamination #GeochemicalModeling #IndependentResearch #OpenScience #RStats #QGIS #EnvironmentalGeochemistry #Thermodynamics #Aquifer #Zenodo #SvystunovaGully

💧 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

Estimation Of Groundwater Storage Loss Using Surface–Subsurface Hydrologic Modeling In An Irrigated Agricultural Region
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https://doi.org/10.1038/s41598-025-92987-6 <-- shared paper
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#GIS #spatial #mapping #hydrology #water #groundwater #model #modeling #estimation #waterresources #watersecurity #irrigated #agriculture #mississippi #alluvialplain #alluvial #aquifer #pump #pumping #mining #SWAT #changes #spatialanalysis #spatiotemporal #surface #subsurface #evapotranspiration #recharge #discharge #massbalance #management

Diem NO al nou #pou de #FontAgudes

https://salvaguardamontseny.cat/diem-no-al-nou-pou-de-font-agudes

Un altre cop la gent d’ #Arbúcies (més de cent persones) s’ha reunit per discutir quin ha de ser el futur de l’ #aigua al municipi d’Arbúcies, començant per oposar-se a la continuació de les explotacions que les empreses #embotelladores efectuen sobre l’ #aqüífer #Montseny - #Guilleries ...

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

Global Groundwater Depletion Is Accelerating But Is Not Inevitable, Say Researchers
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https://phys.org/news/2024-01-global-groundwater-depletion-inevitable.html <-- shared technical article
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https://youtu.be/Hv5tlyKEoXU?si=sovXv2kSQFdN3AtO <-- shared paper
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#GIS #spatial #mapping #water #hydrology #groundwater #waterresources #watermanagement #management #global #depletion #pumping #overpumping #model #modeling #spatialanalysis #spatiotemporal #waterlevel #literaturesearch #database #records #aquifer #subsurface #climatechange #subsidence #arid #farming #agriculture #irrigation #wateruse #watersecurity #historicaldata #statistics #geostatistics

[Photos] Natives Protest at #PinyonPlain #UraniumMine in #GrandCanyon on Sunday

Photos by Blake McCord, #GrandCanyonTrust, #CensoredNews

"Pinyon Plain uranium mine, inside the boundary of Baaj Nwaavjo I’tah Kukveni National Monument, is threatening the #aquifer where #Havasuapai get their life-sustaining water. Now, without notifying #NativeAmerican Nations, two #EnergyFuels #radioactive uranium trucks drove across the #NavajoNation, past #Hopi villages, to the uranium mill site on ancestral #WhiteMesa #Ute land in #Utah." -- Censored News

https://bsnorrell.blogspot.com/2024/08/natives-protest-at-pinyon-plain-uranium.html

#HaulNo #NoUraniumMining #Navajo #NoNukes #NoWar #AdvanceAct #NuclearWeapons #ICANN #Oppenheimer #InformedConsent
#EnvironmentalRacism #WaterIsLife #NoMoreHiroshimas #HiroshimaNagasaki #BanTheBomb

Advocates demand halt to #uranium #mine near the #GrandCanyon

#EnergyFuels says #nuclear power is necessary to fight #ClimateChange, but #Indigenous tribes fear losing their homes

By Matthew Rozsa
January 31, 2024

"The Grand Canyon truly lives up to its name, being the largest canyon on Earth and one of the most popular national parks in America. But due to #UraniumMining in the area, some advocates are warning it could become the site of a future #EnvironmentalDisaster, which threatens to make one Indigenous village 'extinct.'

"More than 80 groups signed onto a statement on Monday — representing Indigenous communities, scientists and environmental nonprofits such as the #SierraClub and the #CenterForBiologicalDiversity — directed at President #JoeBiden and #Arizona Gov. #KatieHobbs, demanding they close the #PinyonPlain uranium mine, which is located near the Grand Canyon.

"'We have a choice in front of us. Allowing the Pinyon Plain mine to proceed is subjecting this landscape and its interconnected waters to a legacy of devastation and disregarding the rights of the #IndigenousPeoples on the land,' Sanober Mirza, Arizona program manager for the National Parks Conservation Association, said in the statement. 'Or we can choose a different path — one that holds a promise of protecting the Grand Canyon’s cultural sanctity, its people and natural resources.'

"To understand why the mine's opponents feel so strongly, one can turn to #AmberReimondo, who work as energy director at a conservationist non-profit called the #GrandCanyonTrust. Reimondo explained to Salon by email that, on the one hand, #Biden permanently banned mining operations on nearly 1 million acres of federal managed lands by creating the #BaajNwaavjo I'tah Kukveni - Ancestral Footprints of the Grand Canyon National Monument in August 2023. Yet the Pinyon Plain mine was #exempt from this prohibition, and Reimondo argues that the impact on the region has been 'several fold.'

"'What they've created here is a long-term, slow motion #EnvironmentalDisaster."

"'The Grand Canyon region as a whole and especially the location of the mine, is deeply significant to Indigenous cultures and is a place where tribal members have conducted #ceremonies, collected medicine, hunted, and more, for centuries,' Reimondo said. 'The mine also overlies critical and complex [and] not well understood groundwater systems. One #aquifer in particular — the #RedWallMuavAquifer — is the sole source of water for the remote #HavasupaiVillage of #Supai inside the Grand Canyon. The mine poses a #contamination threat to these #groundwater resources not just today, but importantly, after the mine's mere 28-month operational lifespan has concluded and the mining operator 'cleans up' and moves on.'

"Supai is so remote, it's only accessible only by helicopter or an 8-mile mule ride or hike, Reimondo explained, noting that if the newly-oxygenated groundwater comes into contact with nearby rocks, minerals like #arsenic and #uranium will be dissolved by the groundwater and enter aquifers used by the local community and essential to local ecology, including #HavasuFalls. Taylor McKinnon, Southwest Director for the Center for Biological Diversity, expressed similar concerns.

"'Ultimately, this mine is going to require political leadership,' McKinnon told Salon in an interview, referring to both the Biden and #Hobbs administrations. 'Those administration's agencies have the authority to fix this problem if they so choose, and that's what they should do.'

"We have detailed strenuously for years that neither regulators nor industry can ensure against the permanent and irretrievable damage to Grand Canyon's aquifers and springs," McKinnon added. "This mine was approved originally in 1986, under a record of decision from the US Forest Service under a presumption that it was highly unlikely that the mine would encounter groundwater, and further unlikely that if it did, it had the potential to contaminate deeper aquifers in the springs that they feed. Subsequent state permitting from the #ArizonaDepartment OfEnvironmentalQuality has basically parroted those same assumptions.'

"Yet McKinnon alleges that in 2016 the mine punctured a perched aquifer, causing roughly 10 million gallons of water per year to drain into the mine workings. From there he asserts that a surface pond formed with water that has concentrations of uranium and arsenic far in excess of the Environmental Protection Agency (#EPA)'s water quality standards. Not only does this threaten the local endangered and endemic species, but it also impacts the nearby Havasupai tribe.

"Havasupai means 'people of the blue-green water,' McKinnon said. "It's their longstanding cultural identity, and it is the water they drink, they farm with and that provides for all of their tourism economy because it is this just a beautiful series of massive verdant waterfalls that flow through the village and down into a series of waterfalls and pools where people camp and they derive tourism dollars.'

"In a 2022 letter of opposition, the Havasupai Tribal Council, laid out what is at stake in the uranium mining controversy.

"'Our identity as a people is intrinsically intertwined with the health of #HavasuCreek and the environment to which it gives life,' the tribe’s letter explained. 'We use this water for drinking, #gardening and irrigating, municipal uses, and #cultural and #religious uses. If the water source becomes contaminated like we have seen in other areas of Arizona due to uranium mining, we will no longer be able to live in our homes and Supai Village will become extinct.'

"These fears are based on precedent. The nearby #NavajoNation is scattered with old uranium mines — over 500, in fact — awaiting cleanup, exposing locals to risk of '#LungCancer from inhalation of #radioactive particles, as well as #BoneCancer and impaired kidney function from exposure to #radionuclides in drinking water,' according to the EPA. Likewise, members of the #UteMountain #Ute tribe in #WhiteMesa, Utah have protested against uranium mines they say have contaminated local groundwater, air and even wildlife."

https://www.salon.com/2024/01/31/advocates-demand-halt-to-uranium-mine-near-the-grand-canyon/

#NoNukes #WaterIsLife #AirIsLife #CulturalGenocide #EnvironmentalRacism #CorporateColonialism #NoMining #UraniumMining #NuclearPowerNoThanks #IndigenousActivism

#IndigenousPeoples Under Attack by Militarized Forces: #NativeHawaiians want the US military out

By Brenda Norrell, #CensoredNews
July 19, 2023

"GENEVA -- Native #Hawaiians want the US military off their lands, and training exercises in the #Pacific shut down. An #aquifer has been poisoned in #Hawaii, and unexploded ordinances left behind are endangering their lives.

"Appealing to the United Nations in Geneva, Indigenous in Guam also want the #US military off their lands. The Pacific Indigenous Women's Network urged the United Nations General Assembly to join the effort for the removal of the US military from #Guam.

"#Indigenous are offering testimony today, and all week, before the UN Expert Mechanism on the Rights of Indigenous Peoples, of the UN #HumanRights Council.

"Around the world, #IndigenousPeoples are under attack by military forces. In #Colombia there are land mines.

"In Peru, the military is attacking, torturing, and killing, those who are isolated and have marched against the current government. More than 40 people, including Indigenous children, have died since protests began in #Peru in December.

"#Indigenous in #Guatemala echoed those descriptions of militarized force.

"Throughout the #Amazon, military forces are killing the people, and seizing the land under the guise of the war on drugs. Indigenous lands are being stolen for illegal #logging and #mining."

Read more:
https://bsnorrell.blogspot.com/2023/07/indigenous-peoples-under-attack-by.html

#IndigenousNews #WaterIsLife #WaterProtectors

Rampant Groundwater Pumping Has Changed the Tilt of Earth’s Axis
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https://www.scientificamerican.com/article/rampant-groundwater-pumping-has-changed-the-tilt-of-earths-axis/ <-- shared technical article
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https://doi.org/10.1029/2023GL103509 <-- shared paper
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“ • Earth's pole has drifted toward 64.16°E at a speed of 4.36 cm/yr during 1993–2010 due to groundwater depletion and resulting sea level rise

• Including groundwater depletion effects, the estimated drift of Earth's rotational pole agrees remarkably well with observations…”
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#GIS #spatial #mapping #geodetic #geodesy #earth #water #research #earthaxis #axis #pole #gravity #remotesensing #groundwater #pumping #global #waterresources #watersecurity #watersupply #sealevelrise #subsidence #earthobservation #aquifer