| 高精度海域似大地水准面模型的建立 |
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| 引用本文： | 刘立,张乙志,温旭,李凉,初理伟.高精度海域似大地水准面模型的建立[J].全球定位系统,2017,42(3):70-72. |
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| 作者姓名： | 刘立 张乙志 温旭 李凉 初理伟 |
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| 作者单位： | 1.浙江省第一测绘院,浙江 杭州 310012 |
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| 摘 要： | 建立高分辨率、高精度的区域似大地水准面已成为信息化测绘体系建设、数字城市建设所必需的基本条件，尤其在地形图测绘、海洋调查等方面，对厘米级似大地水准面的需求十分迫切。本文基于新理论计算方法、重力场模型和融合技术建立高精度海域似大地水准面模型，厘米级的海域似大地水准面模型的建立对沿海地区快速获取高程信息很有意义，弥补了海域的空白。
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| 关 键 词： | 似大地水准面 高精度 重力场模型 |
Establish of High-precision Quasi Geoid Model on Sea Area |
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| Affiliation: | 1.The First Surveying and Mapping Institue of Zhejiang Province, ]Hangzhou 30100,China2.2.ZheJiang Quality Inspection Institute of Surveying ]And Mapping Achievements, Hangzhou 30100,China |
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| Abstract: | The establishment of regional quasi geoid with high resolution and high accuracy has become the essential condition for the construction of digital surveying and mapping system and the construction of Digital City. Especially in Topographic Map Survey and oceanographic survey, the demand of centimeter level geoid is very urgent. This paper Based on the new theoretical calculation method, the gravity field model and the fusion technology, The establishment of geoid model in centimeter class sea area is very meaningful for rapid elevation of coastal area information, and makes up for the gap of sea area. |
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