三角高程测量大气竖直折射角严密计算方法的研究与实验  

Research and Test on Accurate Calculation Method of Atmosphere Vertical Refraction Angle in Trigonometrical Height Surveying

作　　者：姜晨光[1] 杨英姿 周问世 王中华[1] 孙美芬[1] 

机构地区：[1]江南大学土木工程学院,江苏无锡214122 [2]山东宜华咨询有限公司,山东威海264200 [3]莱阳市村镇建设办公室,山东莱阳265200

出　　处：《勘察科学技术》2007年第6期18-21,共4页Site Investigation Science and Technology

基　　金：国家自然科学基金(79160173);江南大学211建设基金(2004012)资助项目

摘　　要：三角高程测量精度一直受制于竖直角的观测精度,竖直角观测精度的关键制约因素是大气竖直折射,准确的大气竖直折射计算方法是提高三角高程测量精度的关键。为了更加合理地计算大气竖直折射,提出了基于球面的三角高程测量大气竖直折射计算方法,给出了基于球面的三角高程测量严格计算公式。Precision of trigonometrical height surveying is restricted by the precision of vertical angle surveying all along,while the vertical angle surveying precision is mainly affected by atmosphere vertical refraction.Accurate calculating method of atmosphere vertical refraction is the key to improve the precision of trigonometrical height surveying.In order to calculate the atmosphere vertical refraction more logically,a calculation method of atmosphere vertical refraction angle of trigonometrical height surveying has been put forward based on spherical surface,and a accurate calculation formula of trigonometrical height surveying has been given.

关 键 词：高程测量 大气竖直折射 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]