文档介绍：珠峰高程测量大气垂直折光系数的研究
王文利①,陈俊勇②
(①国家测绘局大地测量数据处理中心,西安 710054;②国家测绘局,北京 100830)
【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。
【关键词】珠穆朗玛峰;高程;大气温度垂直梯度;大气垂直折光
Research on Atmospheric vertical refraction index in the Height Determination of Qomolangma Feng
WANG wen-li ①, CHEN jun-yong ②
(1 Geodetic Data processing Center, State Bureau of Surveying and Mapping ,
Xi’an 710054 China)
(2 State Bureau of Surveying and Mapping ,Beijing 100830 China )
Abstract: Atmospheric vertical refraction is one of the important factors that affect the height determination of Qomolangma Feng. This text Make use of the data of 2005 height determination of Qomolangma Feng, Implement the detailed analysis and research to the calculation principle, method and its changes the regulation of atmosphere temperature vertical gradient and atmospheric vertical refraction, and carried prehensive analysis bined the results of 1975 and 1999, as a result that they all exist the period variety of the day, according to studied result to their variety trend,and improved pute accuracy of Qomolangma Feng Height.
Key words: Qomolangma Feng; Height Determination; Atmosphere temperature vertical gradient; Atmospheric vertical refraction
珠穆朗玛峰(以下简称珠峰)雄踞喜玛拉雅山之颠,是世界第一高峰