桂林理工大学学报2023，Vol.43Issue(4)：646-652,7.DOI:10.3969/j.issn.1674-9057.2023.04.013
广西地区MERRA-2加权平均温度模型
MERRA-2 weighted mean temperature model in Guangxi
摘要
Abstract
In view of the characteristics of Guangxi,such as the tropical ocean to the south,Yunnan-Guizhou Plateau to the west,and large topographic fluctuations,and the temporal variation characteristics of the tempera-ture decline rate in the vertical direction of the grid height,the weighted average temperature model and tempera-ture decline rate model at each grid height were established by analyzing the weighted average temperature(Tm)at the grid height of the MERRA-2 reanalysis data grid from 2014 to 2016.Furthermore,a MERRA-2 weighted aver-age temperature model(GXTm)was established for Guangxi region.Using the data calculated from radiosonde sta-tions in 2017 as reference values,the accuracy of GXTm model was tested and compared with Bevis model,East-ern China model,Guangxi meteorological parameter model,GPT2w-1 model and GPT2w-5 model.The results show that the mean deviation(Bias)and root mean square error(RMSE)of the GXTm model are 0.26 and 2.51 K,respectively.RMSE of the GXTm model is improved by 32%,34%,17%,and 46%,which higher than that of the Bevis model,the Eastern China model,the GPT2w-1 model,and the GPT2w-5 model.But it is equivalent to the accuracy of the Guangxi meteorological parameter model.关键词
GXTm模型/温度递减率/MERRA-2/加权平均温度/广西Key words
GXTm model/temperature lapse rate/MERRA-2/weighted mean temperature/Guangxi分类
天文与地球科学引用本文复制引用
谢劭峰,张继洪,黄良珂,张亚博,唐友兵..广西地区MERRA-2加权平均温度模型[J].桂林理工大学学报,2023,43(4):646-652,7.基金项目
国家自然科学基金项目(41864002) （41864002）
广西自然科学基金项目(2018GXNSFAA281182) （2018GXNSFAA281182）
