Sea level variations in the South China Sea inferred from satellite gravity,altimetry,and oceanographic data

作     者：FENG Wei 1,2,ZHONG Min 1,3 & XU HouZe 1,3 1 State Key Laboratory of Geodesy and Earth’s Dynamics,Institute of Geodesy and Geophysics,Chinese Academy of Sciences,Wuhan 430077,China 2 Graduate University of Chinese Academy of Sciences,Beijing 100049,China 3 Institute of Geophysics,Huazhong University of Science and Technology,Wuhan 430074,China 

作者机构：State Key Laboratory of Geodesy and Earth’s Dynamics Institute of Geodesy and Geophysics Chinese Academy of Sciences Wuhan China Graduate University of Chinese Academy of Sciences Beijing China Institute of Geophysics Huazhong University of Science and Technology Wuhan China 

出 版 物：《Science China Earth Sciences》 (中国科学（地球科学英文版）)

年 卷 期：2012年第55卷第10期

页      面：1696-1701页

核心收录：

学科分类：0710[理学-生物学] 07[理学] 0707[理学-海洋科学] 0708[理学-地球物理学] 0704[理学-天文学] 071002[理学-动物学] 

基　　金：supported by the Chinese Academy of Sciences (Grant No. KZCX2-YW-143) National Natural Science Foundation of China (Grant Nos. 40974045,41021003) Open Fund in KLDG/IGG (Grant No. L09-18) 

主　　题：altimetry GRACE ECCO the South China Sea sea level variation 

摘      要：Sea level variations(SLVs) can be divided into two major components:the steric SLV and the mass-induced *** two components of SLV in the South China Sea(SCS) are studied by using satellite altimetry,GRACE(Gravity Recovery and Climate Experiment) satellite gravity,and oceanographic data on annual and inter-annual *** the annual timescale,the geographic distribution of mass-induced SLV s amplitude jointly estimated from altimetry and the ECCO(Estimation of the Circulation and Climate of the Ocean) model agrees very well with that from *** observes obvious seasonal mass-induced SLV in the SCS with annual amplitude of 2.7±0.4 cm,which is consistent with the annual amplitude of 2.7±0.3 cm estimated from the steric-corrected *** the inter-annual timescales,the mean SLV in the SCS shows a large oscillation,which is mainly caused by the steric *** trend of mean SLV inferred from altimetry in the SCS is 5.5±0.7 mm/yr for the period of 1993-2009,which is significantly higher than the global sea level rise rate of 3.3±0.4 mm/yr in the same *** is no obvious trend signal in the mass-induced SLV detected from GRACE that indicates the water exchange between the SCS and its adjacent seas and land is in balance within the study period.