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计算测高卫星的正常点及其平均海面高 预览 被引量:2

Computation of normal points with their mean SSH of altimetry satellite
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摘要 利用测高卫星的冻结轨道特征计算了正常点轨迹,利用三次B样条函数和Stacking技术内插计算了T/P、ERS-1/2和Geosat测高数据在正常点的平均海面高,改善了测高数据的精度和分辨率.最后,利用正常点上的平均海面高反演了多种分辨率的海域重力异常,其中所反演的海域重力异常的标准差为mGal级. The normal points of the altimetry satellite are computed according to the frozen orbit of the altimetry satellite. The cubic B\|sample functions and the Stacking technique are applied to determine the mean SSHs at the normal points from the altimeter data of T/P, ERS\|1/2 and Geosat satellite, which improves the accuracy and resolution of the altimeter data. Finally, multi\|resolution marine gravity anomalies are determined from the mean SSH, and the STD of the marine gravity anomalies is mGal. 
作者 彭富清 夏哲仁 张瑞华 石磐 PENG Fu-qing,XIA Zhe-ren,ZHANG Rui-hua,SHI Pan(Xi'an research institute of surveying and mapping, Xi′an 710054, China)
机构地区 西安测绘研究所
出处 《地球物理学进展》 CSCD 2004年第2期 437-441,共5页 Progress in Geophysics
基金 国家自然科学基金(40374001)项目资助.
关键词 正常点 三次B样条函数 Stacking技术 海域重力异常 normal point, cubic B\|Spline functions, Stacking technique, marine gravity anomaly
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参考文献9

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