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利用资源三号(ZY-3)高分辨率多光谱遥感影像提取了三峡库区江河湖库水体数据,结合水位数据,通过负荷格林函数积分模型法模型计算出三峡水库蓄放水导致水位升降的过程中水体对地壳垂直及水平形变的影响。研究发现:(1)以1a为周期,三峡库区库岸及长江近岸地壳垂直及水平形变的趋势与水库的蓄放水时期对应;(2)三峡水库放水期间水位下降,水库库岸及长江近岸地面水平向内形变,方向指向江心,反之向外形变;蓄水期间水位上升,地面下降,反之地壳回弹。
Based on ZY-3 high-resolution multispectral remote sensing imagery, the data of water bodies of rivers, lakes and reservoirs in the Three Gorges Reservoir Area are extracted. Based on the Green’s function model of integral load model, the water level rise and fall of the Three Gorges Reservoir is calculated Influence of medium water on vertical and horizontal crustal deformation. The results show that: (1) The trend of vertical and horizontal deformation of the bank and the Yangtze River near the banks of the Three Gorges correspond to the period of storage and discharge of water in the period of 1a; (2) the water level drops during the discharge of the Three Gorges Reservoir and the reservoir bank and the Yangtze River Nearshore surface horizontal inward deformation, the direction of the center of the river, on the contrary outward deformation; water level rise during storage, the ground down, on the contrary, the earth’s shell rebound.