杨阳,高永泉,王伟,康胜军,杨国林

• 1:兰州交通大学测绘与地理信息学院
• 2:中国测绘科学研究院
• 3:甘肃省地理国情监测工程实验室
• 4:河北农业大学

摘要(Abstract)：

针对目前对地面重力的影响分析多采用模拟计算,从而导致对蓄放水的影响范围和程度分析还存在不足的问题,该文利用资源三号(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,计算出三峡水库蓄放水导致水位升降的过程中水体对地面重力变化的影响。研究发现:(1)以1a为周期,三峡库区库岸及长江近岸地面重力的变化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重力减小;蓄水期间水位上升,地面重力增大;(3)三峡水库蓄放水对库岸及长江近岸的地面重力影响最大可达1 000μGal以上,且距离长江中心线越近,地面重力变化越大。

关键词(KeyWords)： 三峡水库;蓄放水;地面重力;负荷格林函数积分

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(41304009,41374081);; 甘肃省自然科学基金项目(148RJZA039)

作者(Author): 杨阳,高永泉,王伟,康胜军,杨国林

DOI: 10.16251/j.cnki.1009-2307.2018.04.010

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