| 无控制岛礁高程的确定 |
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| 引用本文： | 郑童瑜,刘雁春,高君.无控制岛礁高程的确定[J].海洋测绘,2010,30(5):24-26. |
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| 作者姓名： | 郑童瑜 刘雁春 高君 |
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| 作者单位： | 海军大连舰艇学院 研究生队,辽宁 大连 116018;海军大连舰艇学院 海测工程系,辽宁 大连 116018 |
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| 摘 要： | 通过对EGM96、WDM94和GFZ重力场模型计算的测区重力(似)大地水准面的比较,选取最适合测区的重力场模型。并利用所选重力场模型,用移去-恢复的方法计算各控制点和待定点的大地水准面高;根据GPS/水准点高程异常数据计算其改正数,按照距离倒数加权内插法将改正数传递到待定点,由于待定点的大地高、模型大地水准面高已知,进而可以求得其高程。
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| 关 键 词： | 移去-恢复法 地球重力场模型 (似)大地水准面 GPS/水准 |
Determination of Islets' Elevation in the Coast Control Survey |
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| ZHENG Tong-yu,LIU Yan-chun,GAO Jun.Determination of Islets'' Elevation in the Coast Control Survey[J].Hydrographic Surveying and Charting,2010,30(5):24-26. |
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| Authors: | ZHENG Tong-yu LIU Yan-chun GAO Jun |
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| Institution: | PHD Team of Dalian Navel Academy,Dalian,Liaoning, 116018;Department of Hydrography and Cartography,Dalian Navel Academy,Dalian,Liaoning, 116018 |
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| Abstract: | Through comparing the results of quasi-geoid heights derived from these geo-potential models EGM96,WDM94 and GFZ are selected. By using the adaptable geo-potential and taking advantages of remove- restore technique,the geoid heights of every control site and point of certainty is calculated the corrections to points of certainty are fransfered which is calculated by GPS / leveling points'' height anomaly dates via the approach of distance weighted average. Owing to geodetic heights and model geoid heights of points of certainty are known,the elevations are easily determined. |
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