| 江苏地区Tm-Ts相关性分析及其线性模型的建立 |
| |
| 引用本文： | 朱明晨,胡伍生.江苏地区Tm-Ts相关性分析及其线性模型的建立[J].测绘工程,2018(6):14-18. |
| |
| 作者姓名： | 朱明晨 胡伍生 |
| |
| 作者单位： | 东南大学 交通学院,江苏 南京210096;铜陵学院 建筑工程学院,安徽 铜陵244061
东南大学 交通学院,江苏 南京,210096 |
| |
| 基金项目： | 国家自然科学基金资助项目(41574022;41674035)，铜陵学院校级课题资助项目(2016tlxy27) |
| |
| 摘 要： | 为提高GNSS反演可降水量的精度,文中采集江苏附近5个气象探空站2005—2015年共11年的数据,分析加权平均温度(Tm)年周期的变化规律,同时分析Tm与地表气温(Ts)的线性关系。结论表明,两者的线性关系会随着季节的变化发生相应的变化。文章试验几种线性回归的方案,并利用该区域2016年的数据进行检验,其中将数据每8d一组进行分段拟合得到的模型精度最高,其R_(ms)为2.49k高于传统Bevis模型的3.08k,提高近19%。
|
| 关 键 词： | 加权平均温度 线性回归 时变规律 气象探空数据 weighted average atmospheric temperature linear regression time-varying law weather sounding data |
Correlation analysis of Tm-Ts in Jiangsu province and establishment of its linear model |
| |
| ZHU Mingchen,HU Wusheng.Correlation analysis of Tm-Ts in Jiangsu province and establishment of its linear model[J].Engineering of Surveying and Mapping,2018(6):14-18. |
| |
| Authors: | ZHU Mingchen HU Wusheng |
| |
| Abstract: | In order to improve the accuracy of GNSS inversion of PWV,this paper uses datas of five meteorological stations in Jiangsu province for total 11 years from 2005 to 2015 to analyze the annual cycle of weighted average atmospheric temperature(Tm).At the same time,surface temperature(Ts)linear relationship is analyzed and the result shows that the linear relationship between the two will change with the season.In the last,several linear regression schemes are tried and tested by using the data of 2016 years,within which the highest accuracy of the result is obtained by segmenting the data every 8 days.The Rms is 2.49 k,higher than the traditional Bevis model 3.08 k,an increase of nearly 19%. |
| |
| Keywords: | |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
