| 古巴探区大地水准面模型的探索与确定 |
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| 引用本文： | 魏双保.古巴探区大地水准面模型的探索与确定[J].北京测绘,2020(5):710-713. |
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| 作者姓名： | 魏双保 |
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| 作者单位： | 中国石油集团东方地球物理公司 |
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| 摘 要： | 由于古巴国家没有现成可用的大地水准面模型,需要引进通用大地水准面模型或自建似大地水准面模型,以满足高程测量要求。针对这个问题,本文一方面积极制定似大地水准面建模方案设计,根据探区内水准点和项目测量设备的配备情况,拟采用GPS水准法自建似大地水准面模型;另一方面两个全球大地水准面模型OSU91A和DMA 10×10及一个加勒比区域大地水准面模型CALIB97被引用到探区,通过对探区内有代表性的高精度水准点进行GNSS观测验证,最终确定全球大地水准面模型OSU91A为适合探区、满足项目合同要求的通用大地水准面模型,从而解决了生产中的技术问题。
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| 关 键 词： | 大地水准面模型 全球定位系统(GPS)水准法 建模 高程系统 |
Exploration and Determination of the Geoid Model in the Cuban Exploration Area |
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| WEI Shuangbao.Exploration and Determination of the Geoid Model in the Cuban Exploration Area[J].Beijing Surveying and Mapping,2020(5):710-713. |
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| Authors: | WEI Shuangbao |
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| Institution: | (Bureau of Geophysical Prospecting of China National Petroleum Corporation,Zhuozhou Hebei 072751,China) |
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| Abstract: | Since there is no ready-to-use geoid model in Cuba,it is necessary to introduce a universal geoid model or a self-built geoid model to meet elevation survey requirement.In response to this problem,this paper actively develops the design of the quasi-geoid modeling scheme on the one hand,which is proposed to use the GPS leveling method to build a geoid model according to the leveling point in the exploration area and the survey equipment available for the project;and on the other hand,two global geoid model OSU91A and DMA 10 × 10 and a Caribbean geoid model CALIB97 were recommended in the exploration area,the universal geoid model OSU91A is finally determined to be a geoid model suitable for the exploration area and meeting the project contract requirements which solved the technical problems in production,by the way of the GNSS observation and verification of representative high-precision benchmarks in the exploration area. |
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| Keywords: | Geoid model Global Positioning System(GPS)leveling method modeling elevation system |
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