| 北太平洋卫星测高大地水准面异常 |
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| 引用本文： | 许天铭.北太平洋卫星测高大地水准面异常[J].地球物理学报,1987,30(3):318-322. |
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| 作者姓名： | 许天铭 |
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| 作者单位： | 中国科学技术大学地球和空间科学系, 合肥 |
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| 摘 要： | 自1973年以来,NASA已发射了三颗与卫星测高有关的卫星,测高标准误差≥±10cm。已求得全球平均海水面高度图标准误差≤±1m。它的短波成分比卫星重力大地水准面的丰富得多。由于引入卫星测高资料,已把地球重力位系数从原来的22×22阶次提高到现在的180×180阶次,估计在卫星测高加密观测地区,可提高到720×720阶次。现在,卫星测高已成为综合应用卫星SEASAT的主要观测项目之一,这对于研究海洋地球物理和全球性地球动力学问题无疑是一种十分有用的资料。
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| 收稿时间： | 1985-11-24 |
ALTIMETRIC GEOID ANOMALIES IN NORTH PACIFIC |
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| XU TIAN-MING.ALTIMETRIC GEOID ANOMALIES IN NORTH PACIFIC[J].Chinese Journal of Geophysics,1987,30(3):318-322. |
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| Authors: | XU TIAN-MING |
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| Institution: | Department of Earth and Space Sciences, University of Science and Technology of China, Hefei |
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| Abstract: | Altimetric geoid anomalies in north Pacific caused by the distribution of density anomaly in the ocean crust and its lithosphere were obtained by subtracting the satellite GEM 7 gravimetric geoid up to degree and order 8 from the satellite GEOS 3 altimetric geoid. The map of the geoid anomalies was presented, and its reliability and potentiality for further exploitage were discussed in this paper. |
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| Keywords: | North Pacific Geoid anomalies Satellite altimetric Earth's model GEM-7 |
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