Fri Apr 10, F. Flechtner
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Rajewar, Shubham K., Asoka, Akarsh, Krishnan, K. C. Sai, Puviarasan, N., Purohit, Ritesh, Bhu, Harsh, and Gahalaut, Vineet K., 2026. Groundwater depletion in North West India and its response on crustal deformation. Near Surface Geophysics, 24(2):101–109, doi:10.1002/nsg.70036.
• from the NASA Astrophysics Data System • by the DOI System •
@ARTICLE{2026NSGeo..24..101R,
author = {{Rajewar}, Shubham K. and {Asoka}, Akarsh and {Krishnan}, K.~C. Sai and {Puviarasan}, N. and {Purohit}, Ritesh and {Bhu}, Harsh and {Gahalaut}, Vineet K.},
title = "{Groundwater depletion in North West India and its response on crustal deformation}",
journal = {Near Surface Geophysics},
keywords = {crustal deformation, earthquakes, GPS, GRACE, groundwater depletion, groundwater level, rainfall},
year = 2026,
month = apr,
volume = {24},
number = {2},
pages = {101-109},
abstract = "{The Gravity Recovery and Climate Experiment (GRACE) measurements of the
time-variable gravity field and mass change have helped identify
regions of water reservoirs over land, ice and ocean, as well as
in locating areas affected by drought and groundwater over-
extraction. Studies indicate depletion in groundwater resources
in North West (NW) India in the past 20 years due to over-
extraction from agricultural activities. The Global Positioning
System (GPS) measurements in the region show the signature of
crustal deformation caused by groundwater depletion-induced mass
change. Here, we report the vertical deformation from four
continuous GPS sites within NW India, which show uplift rates of
1.5─4.2 {\ensuremath{\pm}} 0.7 mm/year. We observed a
significant correspondence between the rainfall pattern, mass
change derived from GRACE measurements, GPS measurements-derived
deformation and well-level changes. Despite some marginal
increase in rainfall in the past 3─4 years, the region is still
experiencing over-extraction of groundwater due to increased
demand. Although the tectonic regime of the Delhi Aravalli fold
belt paleo-structure mainly controls the earthquakes in and
around the Delhi region, their occurrence appears to be
influenced by groundwater over-extraction, as the uplift in the
region implies unclamping of the faults, which promotes failure.}",
doi = {10.1002/nsg.70036},
adsurl = {https://ui.adsabs.harvard.edu/abs/2026NSGeo..24..101R},
adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}
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