SEA LEVEL VARIATION IN HONG KONG DETERMINED WITH
TOPEX/POSEIDON AND TIDE GAUGE
1)College of Geomatics，Shandong University of Science and Technology，Qingdao 266590
2)Key Laboratory of Surveying and Mapping Technology on Island and Reef of NGSMG，Qingdao 266590
3)Satellite Surveying and Mapping Application Center of NASMG，Beijing 101300
Abstract：TOPEX/Poseidon（T/P）altimeter data and tide gauge data from 1994 to 2000 were used for analyzing the annual and quarter sea level variation on the coast of Hong Kong.The results show that processes of sea level 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 subsidence in Hong Kong by using the satellite altimeter data and tide gauge data.
Hu Zhibo,Guo Jinyun,Tan Zhengguang et al. SEA LEVEL VARIATION IN HONG KONG DETERMINED WITH
TOPEX/POSEIDON AND TIDE GAUGE[J]. jgg, 2014, 34(4): 56-59.
