| 珠峰高程测量大气垂直折光系数的研究 |
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| 引用本文： | 王文利,陈俊勇.珠峰高程测量大气垂直折光系数的研究[J].测绘科学,2007,32(4):12-13,7. |
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| 作者姓名： | 王文利 陈俊勇 |
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| 作者单位： | 国家测绘局大地测量数据处理中心,西安,710054;国家测绘局,北京,100830 |
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| 基金项目： | 国家测绘局青年学术和技术带头人科研计划课题(200639)，珠穆朗玛峰高程测量数据质量分析研究 |
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| 摘 要： | 大气垂直折光是影响珠峰高程测量成果和精度的重要因素之一。本文根据2005年珠峰高程测量实际数据详细分析研究了大气温度垂直梯度与大气垂直折光系数的计算原则、方法及其变化特征与变化趋势,结合同以往(1975、1992年)珠峰高程测量中大气温度垂直梯度与大气垂直折光系数变化趋势的比较,得出气温垂直梯度与大气垂直折光系数均存在周日变化并给出了它们的变化趋势,提高了珠峰高程的计算精度。
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| 关 键 词： | 珠穆朗玛峰 高程 大气温度垂直梯度 大气垂直折光 |
| 文章编号： | 1009-2307（2007）04-0012-03 |
| 修稿时间： | 2006-07-25 |
Research on atmospheric vertical refraction index in the height determination of Qomolangma Feng |
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| WANG Wen-li,CHEN Jun-yong.Research on atmospheric vertical refraction index in the height determination of Qomolangma Feng[J].Science of Surveying and Mapping,2007,32(4):12-13,7. |
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| Authors: | WANG Wen-li CHEN Jun-yong |
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| Abstract: | Atmospheric vertical refraction is one of the important factors that affect the height determination of Qomolangma Feng. Making use of the data of 2005 elevation of Qomolangma Feng, the paper implements the detailed analysis and research of calculation principle, method and change characteristic and trend of atmosphere temperature vertical gradient and atmospheric vertical refraction. Combining with the results of 1975 and 1999 measurement, it also performs a comprehensive analysis and concludes that they all exist the period variety of the day and their variety trend is given, which improves the computing accuracy of Qomolangma Feng elevation. |
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| Keywords: | Qomolangma Feng height determination atmosphere temperature vertical gradient atmospheric vertical refraction |
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