Journal
GEOPHYSICAL RESEARCH LETTERS
Volume 40, Issue 15, Pages 3898-3902Publisher
AMER GEOPHYSICAL UNION
DOI: 10.1002/grl.50758
Keywords
river deltas; groundwater extraction; relative sea level rise; aquaculture; InSAR
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Funding
- NASA [10-LCLUC10-2-0038]
- NSF [DGE 0707432]
- NSF-EAR [1123880]
- ESA
- Directorate For Geosciences [1342960] Funding Source: National Science Foundation
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Differential Interferometric Synthetic Aperture Radar is applied to the coast of the Yellow River delta (YRD) in China. Like many deltas, the coastline of the YRD is dominated by aquaculture. Advanced Land Observation Satellite Phased Array L-Band Synthetic Aperture Radar (SAR) and Envisat Advanced SAR data acquired between 2007 and 2011 show that subsidence rates are as high as 250 mm/y at aquaculture facilities, likely due to groundwater pumping. These rates exceed local and global average sea level rise by nearly 2 orders of magnitude and suggest that subsidence and associated relative sea level rise may present a significant hazard for Asian megadeltas.
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