| 全球大地水准面模型OSU91A及其应用 |
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| 引用本文： | 冯林刚. 全球大地水准面模型OSU91A及其应用[J]. 地矿测绘, 1999, 0(1) |
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| 作者姓名： | 冯林刚 |
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| 作者单位： | 内蒙古国土资源勘查开发院 |
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| 摘 要： | 全球大地水准面模型ＯＳＵ９１Ａ是ＧＰＳｕｒｖｅｙ软件中的大地水准面模块（ＧｅｏｉｄＭｏｄｕｌｅ）提供的用于世界各地计算大地水准面差距的地球重力场模型，该模型在ＧＰＳｕｒｅｙ软件中主要用于将ＧＰＳ大地高转换为正高（或正常高）和将ＧＰＳ大地高差转换为正高差（或正常高高差），所以，ＯＳＵ９１Ａ模型在利用ＧＰＳ测定正高（或正常高）方面有着很重要的应用
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| 关 键 词： | 全球大地水准面模型；大地水准面模块；地球重力场；正常高；正常高高差 |
Global Geoid Model and Application |
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| Feng Lingang. Global Geoid Model and Application[J]. Surveying and Mapping of Geology and Mineral Resources, 1999, 0(1) |
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| Authors: | Feng Lingang |
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| Abstract: | Global geoid model OSU91A is a Geoid Module in GPSurvey software to calculate earth gravity model and geodial undulation. The model is used mainly to transform ellipsoidal height into orthometric height or normal height. So the model OSU91A has important applica tion on surveying orthometric height or normal height of GPS points. |
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| Keywords: | Global geoid model Geoid modual Gravity fie ld of the earth Normal height Normal heigh difference |
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