METplus学习 生成掩膜

MET是一款用于分析数值模式预报效果的工具，metplus是基于MET的python脚本。

创建掩膜需要用到GenVxMask这个函数

 

输入数据：GFS

MASK：CONUS边界文件

将GenVxMask.conf的基础上修改，复制过来

从以下目录将文件复制过来，parm/use_cases/met_tool_wrapper/GenVxMask/GenVxMask.conf

[config]

# Documentation for this use case can be found at
# https://metplus.readthedocs.io/en/latest/generated/met_tool_wrapper/GenVxMask/GenVxMask.html

# For additional information, please see the METplus Users Guide.
# https://metplus.readthedocs.io/en/latest/Users_Guide

###
# Processes to run
# https://metplus.readthedocs.io/en/latest/Users_Guide/systemconfiguration.html#process-list
###

PROCESS_LIST = GenVxMask


###
# Time Info
# LOOP_BY options are INIT, VALID, RETRO, and REALTIME
# If set to INIT or RETRO:
#   INIT_TIME_FMT, INIT_BEG, INIT_END, and INIT_INCREMENT must also be set
# If set to VALID or REALTIME:
#   VALID_TIME_FMT, VALID_BEG, VALID_END, and VALID_INCREMENT must also be set
# LEAD_SEQ is the list of forecast leads to process
# https://metplus.readthedocs.io/en/latest/Users_Guide/systemconfiguration.html#timing-control
###

LOOP_BY = INIT
INIT_TIME_FMT = %Y%m%d%H
INIT_BEG = 2012040900
INIT_END = 2012040900
INIT_INCREMENT = 1M

LEAD_SEQ = 12H


###
# File I/O
# https://metplus.readthedocs.io/en/latest/Users_Guide/systemconfiguration.html#directory-and-filename-template-info
###

GEN_VX_MASK_INPUT_DIR =
GEN_VX_MASK_INPUT_TEMPLATE = {INPUT_BASE}/met_test/new/gfs/gfs_{init?fmt=%Y%m%d%H}_F{lead?fmt=%3H}.grib

GEN_VX_MASK_INPUT_MASK_DIR =
GEN_VX_MASK_INPUT_MASK_TEMPLATE = {INPUT_BASE}/met_test/data/poly/CONUS.poly

GEN_VX_MASK_OUTPUT_DIR =
GEN_VX_MASK_OUTPUT_TEMPLATE = {OUTPUT_BASE}/met_tool_wrapper/GenVxMask/POLY_GFS_LATLON_CONUS_mask.nc


GEN_VX_MASK_SKIP_IF_OUTPUT_EXISTS = False

GEN_VX_MASK_FILE_WINDOW_BEGIN = 0
GEN_VX_MASK_FILE_WINDOW_END = 0


###
# GenVxMask Settings
# https://metplus.readthedocs.io/en/latest/Users_Guide/wrappers.html#genvxmask
###

#LOG_GEN_VX_MASK_VERBOSITY = 2

GEN_VX_MASK_OPTIONS = -type poly

 

下载样例数据

wget https://dtcenter.ucar.edu/dfiles/code/METplus/METplus_Data/v6.0/sample_data-met_tool_wrapper-6.0.tgz

 

边界文件格式

CONUS.poly

CONUS
35.81352 -122.33439
36.01565 -121.51420
35.35092 -121.27343
34.68935 -121.03940
35.81352 -122.33439

 

GFS文件：

gfs_2012040900_F006.grib

 

运行程序

run_metplus.py -c GenVxMask.conf -c user_system.conf