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Greg Cocks @GregCocks@techhub.social

California Farmers Willing To Cut Back Groundwater Usage When Charged
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https://thehill.com/policy/energy-environment/4797942-california-farmers-groundwater-usage-charge-research/ <-- shared media article
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https://haas.berkeley.edu/wp-content/uploads/WP349.pdf <-- shared paper
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#GIS #spatial #mapping #water #hydrology #waterresources #watermanagement #groundwater #California #USA #watersecurity #farming #agriculture #irrigation #pumping #extraction #overpumping #mining #climatechange #drought #fruit #nuts #sustainability #CentralValley #ImperialValley #economics #cost #fallow #tax #regulations #planning #model #modeling #spatialanalysis #spatiotemporal

photo - A fallow crop field is seen on a farm near Maricopa, route 166, Kern County, California

maps - groundwater depletion and perennial crops, California

charts - marginal electricity prices for four default tariffs, California

charts - long-run elasticities with respect to groundwater pumping cost

Greg Cocks @GregCocks@techhub.social

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

maps - Twenty-first century groundwater-level trends in globally distributed monitoring wells

maps and charts - Comparison of aquifer-scale trends in depth to groundwater during the late twentieth and early twenty-first centuries

maps - Twenty-first century trends in depth to groundwater in 1,693 globally distributed aquifer systems

photo - drilling a groundwater well in an orchard

Greg Cocks @GregCocks@techhub.social

New Research Identifies Ecosystems That Could Be Threatened By Declining Groundwater Levels
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https://phys.org/news/2024-07-ecosystems-threatened-declining-groundwater.html <-- shared technical article
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https://doi.org/10.1038/s41586-024-07702-8 <-- shared paper
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https://codefornature.projects.earthengine.app/view/global-gde <-- interactive global map
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#GIS #spatial #mapping #global #groundwater #depletion #overpumping #waterresources #watertable #aquifer #global #watertable #ecosystems #watersecurity #drought #extremeweather #humanimpacts #climatechange #dependency #habitat #interactions #protection #mitigation #remotesensing #model #modeling #spatialanalysis #spatiotemporal

global map - GDE area density and regional groundwater storage trends

map -protection status of groundwater-dependent ecosystems (GDEs)

screenshot - interactive global map

map - global groundwater-dependent ecosystems (GDEs)

Greg Cocks @GregCocks@techhub.social

Stanford Study Shows Where – And Why – Recharge Is Uplifting Sunken Ground
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https://sjvwater.org/stanford-study-shows-where-and-why-recharge-is-uplifting-sunken-ground/ <-- shared technical article
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https://iopscience.iop.org/article/10.1088/1748-9326/ad5855 <-- shared paper
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#GIS #spatial #mapping #remotesensing #groundwater #subsidence #overpumping #water #hydrology #waterresources #SanJoaquinValley #California #SanJoaquin #recharge #rechargingaquifer #aquifer #InSAR #radar #uplift #elevation #spatialanalysis #spatiotemporal #AEM #soil #geology #clay #sediment #gravel #compaction #infrastructure #canal #watersecurity #farming #agriculture

photo - showing subsidence from 1988 to 2016 at a location in the San Joaquin Valley

chart and map - comparison of the timing to peak amplitude at points across the WY2017 InSAR signal at the Visalia site

photo - groundwater pumping in San Joaquin Valley

maps/cross-sections/schematics - resistivity model profiles across two study sites

Greg Cocks @GregCocks@techhub.social

A National-Scale Assessment Of Land Subsidence In China’s Major Cities
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https://doi.org/10.1126/science.adl4366 <-- shared paper
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#GIS #spatial #mapping #remotesensing #earthobservation #radar #satellite #insar #ifsar #monitoring #change #delta #subsidence #landsubsidence #city #cities #China #risk #hazard #flood #flooding #planning #urban #urbanplanning #construction #engineering #urbanisation #interferometry #geomorphometry #urbanlands #population #demographics #groundwater #pumping #overpumping #water #waterresources #elevation #vertical #coast #coastal #sealevelrise #SLR #climatechange #mitigation #model #modeling #spatialanalysis #3dmodeling

aerial image - Chinese coastal city

schematic / cross section - Associations between city subsidence and natural and human factors.

charts - Population living on subsiding urban lands

maps and chart - National pattern of city subsidence, China

Greg Cocks @GregCocks@techhub.social

Groundwater Sustainability And Land Subsidence In California’s Central Valley
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https://doi.org/10.3390/w16081189 <-- shared paper
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#groundwater #landsubsidence #wateravailability #CentralValley #water #hydrology #subsidence #pumping #overpumping #vulnerable #damage #California #GIS #spatial #mapping #overpumping #extraction #waterresources #agriculture #irrigation #farming #crops #vegetables #landuse #storage #watersecurity #waterquality #sustainability #management #plan #SGMA #USGS #CVHM #model #modeling #numericalmodeling #modflow #groundwatermodel #climatechange #recharge #geology #engineeringgeology #geomorphometry #aquifer #recharge #well #waterbalance #streamflow #risk #hazard #impacts #storageloss #infrastructure #climateextremes #planning #earthobservation #remotesensing #salinity #seawater #intrusion #saltwater #insar #saltwaterintrusion
@USGS

photo - groundwater pumping to cistern with fruit trees, Central Valley, Southern California

maps - Central Valley Hydrologic Model version 2 (CVHM2) simulations of groundwater-level declines for (A) the 2007–2009 drought and (B) the 2012–2016 drought periods. Maps represent simulated groundwater-level differences in the deeper confined system (layer 9 of CVHM2).

map - Land subsidence between June 2015 and April 2023 based on the California Department of Water Resource’s TRE Altamira InSAR Dataset. Also shown are the glaciated and non-glaciated alluvial fans.

maps of model results - Simulated land subsidence in the southern Central Valley (A) from the water year (WY) 1962 to WY 2009. (B) From WY 2000 to WY 2019. (C) From WY 2012 to WY 2016.
California

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