Mon Oct 13, F. Flechtner
• Sorted by Date • Sorted by Last Name of First Author •
Wei, Shiang-Hung and Hwang, Cheinway, 2025. Land subsidence near Hanford and Corcoran, California, from Cryosat-2 altimetry and Sentinel-1A SAR imagery. Terrestrial, Atmospheric and Oceanic Sciences, 36(1):6, doi:10.1007/s44195-025-00087-9.
• from the NASA Astrophysics Data System • by the DOI System •
@ARTICLE{2025TAOS...36....6W,
author = {{Wei}, Shiang-Hung and {Hwang}, Cheinway},
title = "{Land subsidence near Hanford and Corcoran, California, from Cryosat-2 altimetry and Sentinel-1A SAR imagery}",
journal = {Terrestrial, Atmospheric and Oceanic Sciences},
keywords = {California high-speed rail, Corcoran, Cryosat-2, Hanford, Land subsidence, Sentinel-1A, Engineering, Geomatic Engineering},
year = 2025,
month = dec,
volume = {36},
number = {1},
eid = {6},
pages = {6},
abstract = "{This study demonstrates the effectiveness of the Cryosat-2 (C2)
altimeter as a tool for land subsidence monitoring. The study
area is near Hanford and Corcoran, California, where land
subsidence can affect the stability and alignment of rail
infrastructure, potentially leading to increased maintenance
costs and safety concerns. We analyzed vertical land
displacements from 2010 to 2018 using C2 altimeter data
corrected for waveform contamination, as well as two years of
Sentinel-1A (S1A) Interferometric Synthetic Aperture Radar
(InSAR) imagery. Our findings show that subsidence rates from C2
data reach up to 27 cm/year, consistent with GPS-derived rates
within a few cm/year. The Small Baseline Subset (SBAS) technique
applied to S1A imagery yields significant subsidence, exceeding
18 cm/year in the southeast of Corcoran. Correlations between
vertical displacements and environmental factors were examined
using GRACE-derived equivalent water heights and rainfall data,
revealing coefficients of 0.635 and 0.608, respectively, which
indicate strong relationships between groundwater depletion and
surface elevation changes. These results emphasize the complex
interactions between subsidence, climatic factors, and
groundwater management. Our study integrates distributed sensors
such as altimetry, SAR imagery and GPS to monitor land
subsidence, providing crucial information to mitigate subsidence
risks and ensure the stability of vital infrastructure projects
such as the California High-Speed Rail.}",
doi = {10.1007/s44195-025-00087-9},
adsurl = {https://ui.adsabs.harvard.edu/abs/2025TAOS...36....6W},
adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}
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