| 利用卫星测高技术确定浙江海域大地水准面 |
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| 引用本文： | 梁子亮,;岳建平,;吕志才,;吉渊明. 利用卫星测高技术确定浙江海域大地水准面[J]. 测绘工程, 2014, 0(7): 22-25 |
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| 作者姓名： | 梁子亮, 岳建平, 吕志才, 吉渊明 |
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| 作者单位： | [1]河海大学地球科学与工程学院,江苏南京210098; [2]浙江省测绘科学技术研究院,浙江杭州310012 |
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| 摘 要： | 利用多颗卫星的测高数据,经共线平均及交叉点平差,建立浙江深海海域2.5′×2.5′格网分辨率的平均海面高模型,在扣除海面地形影响后得到海域的大地水准面起伏,并与EGM2008所得计算结果进行对比;利用移去-恢复技术及SVR方法,联合验潮站GPS/水准数据与EGM2008大地水准面模型,计算浙江近岸海域大地水准面起伏;最终建立浙江海域2.5′×2.5′格网分辨率的大地水准面模型。
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| 关 键 词： | 卫星测高 大地水准面 平均海面 EGM 移去恢复 |
Determination of geoid model in zhejiang costal waters by using satellite altimetry |
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| Affiliation: | LIANG Zi-liang, YUE Jian-ping, LU Zhi-cai ,JI Yuan-ming (1. School of Earth Sciences and Engineering, Hohai University, Nanjing 210098, China; 2. Zhejiang Academy of Surveying and Mapping, Hangzhou 310012, China) |
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| Abstract: | Muhi-satellite altimeter data is used to establish the Mean Sea Surface （MSS） model over Zhejiang deep waters with a spatial resolution of 2.5＇, based on the eollinear average method and crossover adjustment method. The geoid undulation is calculated after deducting the impact of sea surface topography compared with the results of EGM2008. The geoid undulation of Zhejiang eoastal waters is calculated by using the remove-restore technology and SVR methods with GPS/Leveling data of tide gauges and EGM2008 geoid model. A geoid model over Zhejiang offshore is ultimately established with a spatial resolution of 2.5＇. |
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| Keywords: | altimetry geoid mean sea surface EGM2008 remove-restore |
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