近地面大气垂直折光实验研究  

Experimental Study of Vertical Atmospheric Refraction near the Ground

作　　者：王伟[1] 杨晓明[1] 

机构地区：[1]华北水利水电大学,河南郑州450011

出　　处：《信息工程大学学报》2014年第3期380-384,共5页Journal of Information Engineering University

摘　　要：首先利用三角高程的原理推导出大气垂直折光系数的求解公式,并对其进行精度评定;然后在不同的环境条件下采集数据,计算大气垂直折光系数。分别在晴天不同高度、阴天水泥地面上和晴天汽车上方3种条件下进行近地面低视线大气垂直折光的实验研究;最后总结出近地面大气垂直折光的规律,为中间法三角高程测量提供指导性建议。The principle of triangular height is applied to derive the formula to solve the atmospheric vertical refraction index, and accuracy assessment is made. Then the data are collected under different environmental conditions, and atmospheric vertical refraction index is calculated. Near-theground experimental study of a low sight to atmospheric vertical refraction is conducted mainly at different heights on sunny days, on the concrete floor on cloudy days and above the car on sunny days. Finally, the atmosphere near the ground perpendicular to the law of refraction is summarized, providing guiding advice to the median method of trigonometric leveling method.

关 键 词：大气垂直折光 折光系数 近地面观测 经纬仪量高法 中间法 三角高程测量 

分 类 号：P224.2[天文地球—大地测量学与测量工程]