基于T/P卫星测高数据的海平面变化研究  

Research on Sea Level Change Based on T/P Satellite Altimetry Data

作　　者：张毅胜 ZHANG Yisheng(Guangdong Provincial Institute of Land and Resources Surveying,Guangzhou Guangdong 510500,China)

机构地区：[1]广东省国土资源测绘院,广东广州510500

出　　处：《北京测绘》2021年第3期335-339,共5页Beijing Surveying and Mapping

摘　　要：本文以T/P系列卫星测高数据为研究基础,对各月份数据进行共线处理,对各交叉点进行平差,从而得到海面高,然后对海面高程异常值进行计算,通过对T/P卫星同时在轨阶段测高数据进行综合分析分析,得到中国近海及邻域的平均偏差数据,分别是T/P与Jason-1的差值为-11.76 cm,Jason-1与Jason-2的差值为9.60 cm,Jason-2与Jason-3的差值为2.42 cm,并进行海面高异常改正,建立了研究海域25年的海面高异常序列。对得到海面高异常序列进行分析,得到黄海、东海的海平面上升速率分别为2.68、2.88 mm/a。Based on the research of T/P series satellite altimetry data,it was discussed collinear processing on each month's data and each intersection was adjusted to obtain the sea level height,and then the sea level elevation anomaly value was calculated.T/P satellites were also analyzed and analyzed at the same time during the orbital height measurement data,and the average deviation data of China's offshore and neighboring areas were obtained.The difference between T/P and Jason-1 is-11.76 cm,Jason-1 and Jason-2 The difference is 9.60 cm,the difference between Jason-2 and Jason-3 is 2.42 cm,and the sea level anomaly was corrected to establish a 25-year sea level anomaly sequence in the study area.Based on the analysis of the high sea level anomalies,the sea level rise rates in the Yellow Sea and East China Sea were 2.68 mm/a and 2.88 mm/a,respectively.

关 键 词：卫星测高数据 中国近海 海平面异常 海平面变化 

分 类 号：P228.3[天文地球—大地测量学与测量工程]