Land subsidence at aquaculture facilities in the Yellow River delta, China
Land subsidence at aquaculture facilities in the Yellow River delta, China
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DOI：
10.1002/grl.50758
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发表时间：
2013-08-16
影响因子：
5.2
通讯作者：
Syvitski, James P. M.
中科院分区：
文献类型：
--
作者：
Higgins, Stephanie;Overeem, Irina;Syvitski, James P. M.
差分干涉合成孔径雷达（DIF）在黄河三角洲海岸的应用。与许多三角洲一样，长江三角洲的海岸线以水产养殖为主。2007年至2011年期间获得的高级陆地观测卫星相控阵L波段合成孔径雷达（SAR）和Envisat高级SAR数据显示，水产养殖设施的沉降率高达250毫米/年，可能是由于地下水抽水。这些速度超过当地和全球平均海平面上升近两个数量级，表明沉降和相关的相对海平面上升可能对亚洲大三角洲构成重大危险。
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.