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Study of Interaction Between the Oceanic change and the Solid Earth by the International TOPEX/POSEIDON Satellite Program

国际TOPEX/POSEIDON卫星计划研究海洋变化与固体地球的相互作用

基本信息

批准号：
02044037
负责人：
SEGAWA Jiro
金额：
$ 2.88万
依托单位：
University of Tokyo
依托单位国家：
日本
项目类别：
Grant-in-Aid for international Scientific Research
财政年份：
1990
资助国家：
日本
起止时间：
1990 至 1992
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-02044037/
关键词：
TOPEX POSEIDON Sea Surface Height GEOID Sea Surface Change Radar Altimeter ERM Orbit Kuroshio Tide TOPEX POSEIDON デ-タの検証潮汐モデル重力場

项目摘要

The study conducted from April 1992 to March 1993 is construction of the algorism for the data processings of TOPEX/POSEIDON Altimeter data After the satellite was launched successfully on August 10, 1992, we began processing of the Interim Geophysical Data distributed from NASA and CNES every week. The preliminary results from TOPEX/POSEIDON data can be summarized as follows :(1) The Interim Geophysical Data Record provides Sea Surface Height as accurate as 13 cm. It is promising, therefore, that, by re-adjustment of the satellite orbit, the error could be reduced to 1cm level.(2) It was possible to find the Kuroshio and its extension and the Oyashio from the altimeter data, and, although preliminarily, their variations could be traced.(3) Under the co-operation with the satellite Laser tracking facility attached to the Japan Hydrographic Department, Maritime Safety Agency we are trying to improve the information of satellite orbit, particularly in the western Pacific region. Since the Laser tracking stations for TOPEX/POSEIDON are originally sided to the east Pacific end the Mediterranean sea the fareast region has been left as an area of the worst orbit prediction. This problem is being solved through this study.(4) In the post-launch meeting of the International TOPEX/POSEIDON program held at the Jet Propulsion Laboratory, California Institute of Technology, between 21 and 25 February, the head investigator of this study reported the progress of data processings in Japan. Three investigators participated in the meeting.

1992年8月10日TOPEX/POSEIDON卫星发射成功后，我们开始处理NASA和CNES每周提供的中期地球物理数据。TOPEX/POSEIDON数据的初步结果可以概括如下：（1）临时地球物理数据记录提供的海面高度精确到13厘米。因此，有希望通过重新调整卫星轨道，将误差减小到1厘米的水平。(2)从高度计数据中可以找到黑潮及其延伸部分和亲潮，尽管只是初步的，但可以追踪它们的变化。(3)在与日本水文局海洋安全厅附属的卫星激光跟踪设施的合作下，我们正在努力改进卫星轨道的信息，特别是在西太平洋区域。由于TOPEX/POSEIDON的激光跟踪站最初位于东太平洋的地中海一端，因此远东地区一直是轨道预报最差的地区。这个问题正在通过这项研究得到解决。(4)2月21日至25日，在加州理工学院喷气推进实验室举行的国际TOPEX/POSEIDON计划启动后会议上，该研究的首席研究员报告了日本数据处理的进展情况。三名调查员参加了会议。