利用FNL_grib2.nc资料画图

珮瑶瑶

想利用FNL_grib2.nc资料画图，但是不明白各变量都代表什么，仇大佬指点一下。
file_path='D:/NCDownloads/fnl_20180228_12_00.grib2.nc'
data=nc.Dataset(file_path)

print(data.variables.keys())

for i in data.variables.keys():
    print(data.variables[i].units)



利用以上方法打印出来了各变量信息：odict_keys(['TMP_P0_L1_GLL0', 'TMP_P0_L6_GLL0', 'TMP_P0_L7_GLL0', 'TMP_P0_L100_GLL0', 'TMP_P0_L102_GLL0', 'TMP_P0_L103_GLL0', 'TMP_P0_L104_GLL0', 'TMP_P0_2L108_GLL0', 'TMP_P0_L109_GLL0', 'POT_P0_L104_GLL0', 'DPT_P0_L103_GLL0', 'APTMP_P0_L103_GLL0', 'SPFH_P0_L103_GLL0', 'SPFH_P0_2L108_GLL0', 'RH_P0_L4_GLL0', 'RH_P0_L100_GLL0', 'RH_P0_L103_GLL0', 'RH_P0_2L104_GLL0', 'RH_P0_L104_GLL0', 'RH_P0_2L108_GLL0', 'RH_P0_L200_GLL0', 'RH_P0_L204_GLL0', 'PWAT_P0_L200_GLL0', 'SNOD_P0_L1_GLL0', 'WEASD_P0_L1_GLL0', 'CLWMR_P0_L100_GLL0', 'CPOFP_P0_L1_GLL0', 'UGRD_P0_L6_GLL0', 'UGRD_P0_L7_GLL0', 'UGRD_P0_L100_GLL0', 'UGRD_P0_L102_GLL0', 'UGRD_P0_L103_GLL0', 'UGRD_P0_L104_GLL0', 'UGRD_P0_2L108_GLL0', 'UGRD_P0_L109_GLL0', 'UGRD_P0_L220_GLL0', 'VGRD_P0_L6_GLL0', 'VGRD_P0_L7_GLL0', 'VGRD_P0_L100_GLL0', 'VGRD_P0_L102_GLL0', 'VGRD_P0_L103_GLL0', 'VGRD_P0_L104_GLL0', 'VGRD_P0_2L108_GLL0', 'VGRD_P0_L109_GLL0', 'VGRD_P0_L220_GLL0', 'VVEL_P0_L100_GLL0', 'VVEL_P0_L104_GLL0', 'ABSV_P0_L100_GLL0', 'GUST_P0_L1_GLL0', 'VWSH_P0_L7_GLL0', 'VWSH_P0_L109_GLL0', 'USTM_P0_2L103_GLL0', 'VSTM_P0_2L103_GLL0', 'VRATE_P0_L220_GLL0', 'PRES_P0_L1_GLL0', 'PRES_P0_L6_GLL0', 'PRES_P0_L7_GLL0', 'PRES_P0_L103_GLL0', 'PRES_P0_L109_GLL0', 'PRMSL_P0_L101_GLL0', 'ICAHT_P0_L6_GLL0', 'ICAHT_P0_L7_GLL0', 'HGT_P0_L1_GLL0', 'HGT_P0_L4_GLL0', 'HGT_P0_L6_GLL0', 'HGT_P0_L7_GLL0', 'HGT_P0_L100_GLL0', 'HGT_P0_L109_GLL0', 'HGT_P0_L204_GLL0', 'MSLET_P0_L101_GLL0', '5WAVH_P0_L100_GLL0', 'HPBL_P0_L1_GLL0', 'PLPL_P0_2L108_GLL0', 'CWAT_P0_L200_GLL0', 'SUNSD_P0_L1_GLL0', 'CAPE_P0_L1_GLL0', 'CAPE_P0_2L108_GLL0', 'CIN_P0_L1_GLL0', 'CIN_P0_2L108_GLL0', 'HLCY_P0_2L103_GLL0', 'LFTX_P0_L1_GLL0', '4LFTX_P0_L1_GLL0', 'TOZNE_P0_L200_GLL0', 'O3MR_P0_L100_GLL0', 'LAND_P0_L1_GLL0', 'TSOIL_P0_2L106_GLL0', 'SOILW_P0_2L106_GLL0', 'WILT_P0_L1_GLL0', 'LANDN_P0_L1_GLL0', 'FLDCP_P0_L1_GLL0', 'HINDEX_P0_L1_GLL0', 'ICEC_P0_L1_GLL0', 'lv_DBLL11_l1', 'lv_DBLL11_l0', 'lv_ISBL10', 'lv_SPDL9_l1', 'lv_SPDL9_l0', 'lv_ISBL8', 'lv_HTGL7', 'lv_ISBL6', 'lv_SIGL5_l1', 'lv_SIGL5_l0', 'lv_HTGL4', 'lv_PVL3', 'lv_HTGL2', 'lv_AMSL1', 'lv_ISBL0', 'lat_0', 'lon_0'])

知道TMP RH  UGRD VGRD HGT等分别代表温度 湿度 风场U V分量，不明白都代表哪个高度层？请大佬指点

yijianmingliu

嗨，你好，我没有用过FNL文件，但我知道nc文件里是有nc.dimensions.keys()，nc.ncattrs()等说明信息的。如果你会使用matlab里的ncdisp命令会更方便，至于所说的高度层建议看一下这些变量的shape,和属性信息。

杨松

仇大佬牛逼

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