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#groundwater

2 posts2 participants0 posts today
Public
💧🌏 Greg Cocks

Why Geological Maps Are The Best Investment You’ve Never Heard Of - Investments In Geological Mapping Paid Off Big Time For Americans.
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zmescience.com/science/geology <-- shared opinion piece
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profession.americangeosciences <-- shared technical cost-benefit analysis
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geosociety.org/GSA/gsa/positio <-- shared 2003 GSA appraisal
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[I am, of course, biased in this regard, but I also like well-presented metrics – and use cases being met are my favourite!]
#geology #value #cost #mapping #cartography #cartographic #USA #costbenefit #geologicmapping #metrics #usecase #fedscience #appliedscience #engineeringgeology #spatial #GIS #construction #resources #naturalresources #engineering #risk #hazard #naturaldisasters #payoff #investment #massmovement #groundwater #waterresources #water #hydrology #rareearth #minerals #mining #oilandgas #exploration #underground #money #economics #publicgood #publicvalue #investment

Public
DoomsdaysCW

#Fukushima Now – Current State of Post-Accident Operations at Fukushima Daiichi Nuclear Power Station (August 2024 to January 2025)

by Citizens' Nuclear Information Center · Published April 2, 2025 · Updated April 2, 2025

By Matsukubo Hajime

Excerpt: State of #ContaminatedWater

"Contaminated water countermeasures at #FukushimaDaiichi #NuclearPower Station (#FDNPS) can be broadly divided into three areas: 1) Reduction of #groundwater flowing into buildings, 2) Reduction of #ContaminatedWater flowing into the sea, and 3) Reduction of the toxicity of contaminated water.

"Countermeasures implemented to reduce water inflow into the buildings are, from higher elevations downward, (A) Pumping up groundwater at the groundwater bypass and releasing it into the sea (953,611m3 up to February 10, 2025), B) Installation of a frozen earth barrier (on-land water barrier, total length roughly 1,500m) surrounding FDNPS Units 1-4, C) Pumping up water at the subdrains and releasing it into the sea (1,801,404m3 up to February 9), and D) Paving of the site with asphalt to suppress permeation of rainwater into the soil. Measures to prevent the discharge of contaminated water into the ocean include A) Groundwater leakage prevention by a steel water barrier on the sea-side and B) Pumping up of groundwater dammed up behind the sea-side water barrier from the well points and groundwater drains. Due to these measures, the volume of contaminated water discharged, 540m3/day in May 2014, fell to 80m3/day in FY2023, and was below 100m3/day in FY2024.

"In the reduction of the toxicity of contaminated water, cesium and strontium are removed, and after the removal of impurities using a reverse osmosis (RO) membrane, the multi-radionuclide removal equipment (ALPS – Advanced Liquid Processing System) then removes 62 radionuclides [NOT COMPLETELY!!!]. The water is then stored in tanks (containing 1,297,190m3 as of January 30, 2025. However, due to past equipment #malfunctions and operational policies, around 64% of the stored water exceeds the notification concentration).

"Oceanic release of the ALPS-treated contaminated water began on August 24, 2023, a total of 78,285m3 being released in ten batches by January 2025. Table 2 shows the amounts released in each release and the total amount of tritium released. The concentration is gradually rising. One further release is scheduled during FY2024. In addition, roughly 15,720m3 of water remain in buildings, and a further 8,946m3 of strontium-treated water, etc., 5,644m3 of water treated by RO, and 9,463m3 of concentrated wastewater, etc. also exist onsite."

Read more:
cnic.jp/english/?p=8272
#FukushimaIsntOver #WaterIsLife #PacificOcean #TEPCOLies #FukushimaNuclear #RethinkNotRestart #RadioactiveContamination #HormesisIsBullShit #Bioaccumulation

cnic.jpFukushima Now (28) – Current State of Post-Accident Operations at Fukushima Daiichi Nuclear Power Station (August 2024 to January 2025) – Citizens' Nuclear Information Center
Public
💧🌏 Greg Cocks

Earth's Storage Of Water In Soil, Lakes And Rivers Is Dwindling - And It's Especially Bad For Farming
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phys.org/news/2025-03-earth-st <-- shared technical article
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doi.org/10.1126/science.adq652 <-- shared paper
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#water #hydrology #waterresources #global #management #watersecurity #soil #lake #river #snow #groundwater #agriculture #sealevelerise #SLR #climatechange #farming #overuse #waste #moisture #soilmoisture #ecology #ecosystems #storage #model #modeling #spatialanalysis #spatiotemporal #rainfall #drought #consistency #wateruse #crop #plant #vegetation #irrigation #foodsecurity #evapotranspiration #ET #surfacewater #flux #GIS #spatial #mapping #remotesensing #earthobservation #waterstorage #depletion

Public
Dr Micha Campbell

One month left to provide feedback on our preprint "Rainfall recharge thresholds decrease after an intense fire over a near-surface cave at Wombeyan, Australia."

We are keen for some constructive feedback to improve the paper :)

egusphere.copernicus.org/prepr

#hydrology #KarstHydrology #Groundwater #preprint

@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
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

Hydrogeologic Investigation, Framework, And Conceptual Flow Model Of The Antlers Aquifer, Southeastern Oklahoma, 1980–2022
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doi.org/10.3133/sir20255013 <-- shared USGS publication
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waterdata.usgs.gov/nwis <-- shared USGS National Water Information System (NWIS) database
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doi.org/10.5066/P14C6QFS <-- shared associated USGS open data release
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#GIS #spatial #mapping #fedscience #water #hydrology #wateresources #pump #pumping #groundwater #AntlersAquifer #aquifer #Oklahoma #model #flow #test #flowmodel #yield #wateruse #watersecurity #climate #weather #recharge #precipitation #rainfall #TDS #waterquality #ions #potentiometric #geology #monitoring #planning #regulatory #agriculture #farming #cropland #spatialanalysis #spatiotemporal #fedscience
@USGS

Public
DoomsdaysCW

Stories from #TheAmazon, #Kenya and #Zimbabwe

#WorldWaterDay: 3 stories of #resistance and #restoration from around the globe

Kristine Sabillo, 21 Mar 2025

"More than 2 billion people around the world live without access to safe drinkable water, as rivers, #groundwater, lakes and #glaciers face continued threats of #pollution and overexploitation due to #urbanization, #EnvironmentalDestruction, and #ClimateChange .

"This World Water Day, #Mongabay looks back at some of its coverage from 2024 on how local communities are trying to protect the world’s dwindling water resources."

news.mongabay.com/short-articl
#WaterSecurity #WaterIsLife #RiversAreLife #OceansAreLife #Wetlands #Marshes #Rivers

Mongabay Environmental News · World Water Day: 3 stories of resistance and restoration from around the globeMore than 2 billion people around the world live without access to safe drinkable water, as rivers, groundwater, lakes and glaciers face continued threats of pollution and overexploitation due to urbanization, environmental destruction, and climate change. This World Water Day, Mongabay looks back at some of its coverage from 2024 on how local communities are […]
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

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