摘要
利用TOPEX/Poseidon卫星测高资料和验潮站资料计算了1994~2000年香港邻近海域的年均和季均海平面变化。结果表明,两种数据得到的海平面变化过程具有很好的同步性,但由T/P卫星测高资料得到的绝对海平面上升速率为7.73mm/a,比由验潮站数据得到的12.18mm/a相对海平面上升速率低4.45mm/a。对比同时期香港验潮站处的陆地沉陷速率表明,卫星测高数据与验潮站数据推出的验潮站陆地垂直运动速率,可以用来验证和估算验潮站处的地面升降运动。
TOPEX/Poseidon(T/P) altimeter data and tide gauge data from 1994 to 2000 were used for analy- zing the annual and quarter sea level variation on the coast of Hong Kong. The results show that processes of sea lev- el variation obtained with TOPEX/Poseidon (T/P) altimeter and tide gauge data are synchronous. The relative rising rate of sea level from the tide gauge is 12.18mm/yr,and the rising rate of absolute sea level obtained from T/P is 7.73mm/yr,which is 4.45mm/yr less than the former. That means that it is possible to speculate the ground sub- sidence in Hong Kong by using the satellite altimeter data and tide gauge data.
出处
《大地测量与地球动力学》
CSCD
北大核心
2014年第4期56-59,共4页
Journal of Geodesy and Geodynamics
基金
国家自然科学基金项目(41374009)
国家973计划项目(2013CB733302)
山东省自然科学基金项目(ZR2013DM009)
公益性行业科研专项(201412001)