大地测量与地球动力学2017，Vol.37Issue(8)：841-844,848,5.DOI:10.14075/j.jgg.2017.08.014
全球气压气温模型在中国地区的精度分析
Accuracy Analyses of Global Pressure and Temperature Model in China
摘要
Abstract
The global pressure and temperature model (GPT) is an empirical model providing pressure and temperature at any site in the vicinity of the earth's surface.Aiming at mitigating the shortages of GPT,the GPT2w model is presented,which provides more meteorological data,with a higher horizontal resolution of 5° (GPT2w_5 model) and 1° (GPT2w_1 model).In order to test the accuracy of pressure and temperature of GPT,GPT2w_5 and GPT2w_1 model,the performance of the three models are compared and analyzed at selected sites,based on 1 year (2015.3 to 2016.2) high-precision sounding data from 29 sounding sites in China.The results show that all three models have obvious seasonality and sensitivity to latitude change;the GPT2w_1 model performs as well as the GPT2w_5 model and significantly better than the GPT model;but compared with the GPT2w_5 model,the GPT2w_1 model is more robust.关键词
气压/气温/GPT模型/GPT2w模型/精度分析Key words
pressure/temperature/global pressure and temperature model/GPT2w/accuracy analysis分类
天文与地球科学引用本文复制引用
施宏凯,何秀凤,王俊杰..全球气压气温模型在中国地区的精度分析[J].大地测量与地球动力学,2017,37(8):841-844,848,5.基金项目
国家自然科学基金(41274017) （41274017）
江苏省研究生科研创新计划(KYLX15_0532) （KYLX15_0532）
中央高校基本科研业务费专项(2015B42114).National Natural Science Foundation of China,No.41274017 （2015B42114）
Postgrduate Scientific Research Innovation Plan of Jiangsu Province,No.KYLXIS_0532 （）
Special Fund for Basic Scientific Research of Central Universities,No.2015B42114. （）
