|
|
|
| Methods for downloading and cropping US GFS global numerical weather forecast data |
| Shi Xiaokang1, Cheng Wencong1, Wu Jianxun2, Li Sen1 |
1. Beijing Aviation Meteorological Institute,Beijing 100085;
2. Northwest Institute of Nuclear Technology,Urumqi 841700 |
|
|
|
|
Abstract In view of the slow download speed and large file storage of GFS global numerical weather forecast data from the United States,this paper presents a preliminary solution,that is,using Tencent cloud computing server to achieve stable and fast data download.The grib2 file format and background field variables of WRF model are also introduced.Data download scripts,reading and writing of grib2 format files based on python,ecCodes and pygrib software,and region clipping are implemented,which reduces useless variables,file size and provides background field for WRF model.Finally,the results are analyzed to provide a reference for operational applications.
|
|
Received: 09 July 2020
|
|
|
|
|
|
| [1] |
国家气象信息中心通信台编写组.表格驱动码编码手册:BUFR、GRIB和CREX编码(第二版)[M].北京:气象出版社,2010.
|
| [2] |
Skamarock W C,Klemp J B,Dudhia J,et al.A description of the advanced research WRF version 3.NCAR Technical Note,NCAR/TN-475+STR[R].Boulder Colorado USA,2008.
|
| [3] |
CENTOS系统 ANACONDA3(PYTHON3)安装PYGRIB[EB/OL].[2019-02-02].https://www.cnblogs.com/sunshine8/p/10348204.html
|
|
|
|
2021, Vol. 38 
