新疆地区地基GPS加权平均温度模型的建立与分析

发布时间：2018-08-20 10:34

【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。
[Abstract]:Based on the sounding data of five years in Xinjiang, the correlation between the weighted average temperature of water vapor of each sounding station and the surface temperature of T _ s is calculated. The model of single station T _ m and the regional T _ m model of Xinjiang region are established by linear regression. Through comparative analysis, we found that the coefficients of the regression model show a certain regularity with the change of geographical location, and the correlation is not proportional to the precision of the T_m-T_s regression model. The accuracy of the single station model is better than that of several important models established in recent years. The application scope of the single station model is limited. It is necessary to establish a regional model. The Xinjiang regional model is: 10. 33. 338 8 0.592 3Ts, compared with several important models studied by the predecessors. The accuracy of the regional model calculated in Xinjiang area is improved obviously.
【作者单位】：桂林理工大学测绘地理信息学院;桂林理工大学广西空间信息与测绘重点实验室;桂林理工大学广西矿冶与环境科学实验中心;
【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
【分类号】：P228.4;P407

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