新疆地区地基GPS加权平均温度模型的建立与分析  

Model establishment and analysis of weighted mean temperature of ground-based GPS in the region of Xinjiang

作　　者：黎峻宇 刘立龙[1,2,3] 蔡成辉 林国标[2,3] 黄良珂[1,2,3] LI Jun-yu LIU Li-long CAI Cheng-hui LIN Guo-biao HUANG Liang-ke(Guangxi Scientific Experiment Center of Mining, Metallurgy and Environment College of Geomatics Engineering and Geoinformations Guangxi Key Laboratory of Spatial Information and Geomatics, Guilin University of Technology, Guilin 541004, China)

机构地区：[1]桂林理工大学广西矿冶与环境科学实验中心,广西桂林541004 [2]桂林理工大学测绘地理信息学院,广西桂林541004 [3]桂林理工大学广西空间信息与测绘重点实验室,广西桂林541004

出　　处：《桂林理工大学学报》2017年第1期108-113,共6页Journal of Guilin University of Technology

基　　金：国家自然科学基金项目(41064001);广西自然科学基金项目(2012GXNSFAA053183;2012GXNSFGA060001);广西研究生教育创新计划项目(YCSZ2013077);广西空间信息与测绘重点实验室课题(桂科能1207115-07);广西矿冶与环境科学实验中心课题(KH2012ZD004);广西"八桂学者"岗位专项经费项目

摘　　要：利用新疆5年的探空数据统计各探空站水汽加权平均温度T_m与地面温度T_s的相关性,通过线性回归建立各单站T_m模型以及新疆地区区域T_m模型。通过比较分析发现:T_m-T_s的相关性、回归模型的系数随地理位置变化呈现一定的规律性,相关性的强弱与T_m-T_s回归模型的精度不成正比关系;在新疆地区,单站模型的精度优于近年一些文献建立的几个重要模型,单站模型的应用范围是有限的,有必要建立区域模型,新疆区域模型为:T_m=103.338 8+0.592 3T_s,与前人研究的几个重要模型相比,区域模型在新疆地区计算的T_m内外符合精度明显提高。The correlation analysis of Tm and Ts was made by 5 gears data from Xinjiang Sounding station. On this basis,the Tm model of single station and region of Xinj iang are established by linear regression. It concludes that the correlation of Tm - Ts and the coef ficient of regression formula vary based on the transportation of geo-graphic position in a certain regularity. The relationship between the strength of the correlation and the precision of the Tm - Ts HBgression model is not proportional. In Xinj iang, the accuracy of single station model is better than some several important models in recent years documents. As the practical scope of a single station model is limited, it is necessary to establish a regional model. The linear regression regional model is Tm = 103. 338 8 ＋ 0. 592 3TS, the accuracy of regional model is higher than previous models in the internal and external precision.

关 键 词：相关性 线性回归 单站模型 区域模型 精度 

分 类 号：P228.4[天文地球—大地测量学与测量工程]