Mon Oct 13, F. Flechtner
• Sorted by Date • Sorted by Last Name of First Author •
Guo, Jiming, Zhou, Lv, Yao, Chaolong, and Hu, Jiyuan, 2016. Surface Subsidence Analysis by Multi-Temporal InSAR and GRACE: A Case Study in Beijing. Sensors, 16(9):1495, doi:10.3390/s16091495.
• from the NASA Astrophysics Data System • by the DOI System •
@ARTICLE{2016Senso..16.1495G,
author = {{Guo}, Jiming and {Zhou}, Lv and {Yao}, Chaolong and {Hu}, Jiyuan},
title = "{Surface Subsidence Analysis by Multi-Temporal InSAR and GRACE: A Case Study in Beijing}",
journal = {Sensors},
keywords = {multi-temporal InSAR, GRACE, surface subsidence, Beijing, groundwater},
year = 2016,
month = sep,
volume = {16},
number = {9},
eid = {1495},
pages = {1495},
abstract = "{The aim of this study was to investigate the relationship between
surface subsidence and groundwater changes. To investigate this
relationship, we first analyzed surface subsidence. This paper
presents the results of a case study of surface subsidence in
Beijing from 1 August 2007 to 29 September 2010. The Multi-
temporal Interferometric Synthetic Aperture Radar (multi-
temporal InSAR) technique, which can simultaneously detect
point-like stable reflectors (PSs) and distributed scatterers
(DSs), was used to retrieve the subsidence magnitude and
distribution in Beijing using 18 ENVISAT ASAR images. The multi-
temporal InSAR-derived subsidence was verified by leveling at an
accuracy better than 5 mm/year. Based on the verified multi-
temporal InSAR results, a prominent uneven subsidence was
identified in Beijing. Specifically, most of the subsidence
velocities in the downtown area were within 10 mm/year, and the
largest subsidence was detected in Tongzhou, with velocities
exceeding 140 mm/year. Furthermore, Gravity Recovery and Climate
Experiment (GRACE) data were used to derive the groundwater
change series and trend. By comparison with the multi-temporal
InSAR-derived subsidence results, the long-term decreasing trend
between groundwater changes and surface subsidence showed a
relatively high consistency, and a significant impact of
groundwater changes on the surface subsidence was identified.
Additionally, the spatial distribution of the subsidence funnel
was partially consistent with that of groundwater depression,
i.e., the former possessed a wider range than the latter.
Finally, the relationship between surface subsidence and
groundwater changes was determined.}",
doi = {10.3390/s16091495},
adsurl = {https://ui.adsabs.harvard.edu/abs/2016Senso..16.1495G},
adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}
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