| Determination of Geopotential of Local Vertical Datum Surface |
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| 作者姓名： | WEI Ziqing JIAO Wenhai |
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| 作者单位： | Xi'an Research Institute of Surveying and Mapping,Xi'an 710054,China |
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| 摘 要： | 1 ＩｎｔｒｏｄｕｃｔｉｏｎＥａｃｈｃｏｕｎｔｒｙｏｒｅａｃｈｇｒｏｕｐｏｆｃｏｕｎｔｒｉｅｓｓｅｌｅｃｔｓｍｅａｎｓｅａｌｅｖ ｅｌａｔａｄｅｆｉｎｅｄｔｉｄｅｇａｕｇｅｏｒａｔａｇｒｏｕｐｏｆｇａｕｇｅｓｆｏｒｉｔｓｖｅｒｔｉ ｃａｌｄａｔｕｍｓｕｒｆａｃｅ .Ｉｔｉｓｒｅａｌｉｚｅｄ ,ｈｏｗｅｖｅｒ,ｔｈａｔｔｈｅｌｏｃａｌｍｅａｎｓｅａｌｅｖｅｌｉｓｕｓｕａｌｌｙｄｅｐａｒｔｅｄｆｒｏｍｔｈｅｇｅｏｉｄ ,ｗｈｉｃｈｓｈｏｕｌｄｂｅｔｈｅｉｄｅａｌｄａｔｕｍｓｕｒｆａｃｅｆｏｒｈｅｉｇｈｔ,ｏｗ…
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| 关 键 词： | 全球定位系统 GPS 重力势 平均海平面 地方垂直基准点 |
Determination of geopotential of local vertical datum surface |
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| WEI Ziqing,JIAO Wenhai.Determination of Geopotential of Local Vertical Datum Surface[J].Geo-Spatial Information Science,2003,6(1):1-4. |
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| Authors: | Ziqing Wei Wenhai Jiao |
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| Institution: | WEI Ziqing JIAO Wenhai |
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| Abstract: | This paper first develops the approaches to determine the geopotential of the local mean sea level, and then investigates
the offset of the 1985 vertical datum surface defined by the mean sea level of Yellow Sea at the Dagang Tide Gauge in Qingdao
city using the developed approaches and GPS/leveling data. It shows that the geopotential of the local mean sea level at the
tide gauge is equal to 62 636 853.5±0.2 m2·s−2 and that the 1985 vertical datum surface is 24.6±5.4 cm above the geoid realized by the geopotential W0=62 636 856.0±0.5 m2·s−2. |
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| Keywords: | mean sea level the 1985 vertical datum geopotential GPS/leveling |
| 本文献已被 CNKI 万方数据 SpringerLink 等数据库收录！ |
