Changes between Version 20 and Version 21 of WRF4GWRFReforecast


Ignore:
Timestamp:
May 2, 2013 10:50:04 AM (9 years ago)
Author:
MarkelGarcia
Comment:

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  • WRF4GWRFReforecast

    v20 v21  
    7777== How to get driving model (NCEP) data.
    7878
    79 In this example, the publicly available NCEP Reanalysis data are going to be used. This data can be dowloaded from [http://nomad3.ncep.noaa.gov/pub/reanalysis-1/6hr] in GRIB format. These are monthly files that get updated each month nearly in real time. Two files are needed for each month, one with the pressure level data, labeled "pbg", and other one with 2D data, labeled "grb2d". extdata_path defined in experiment.wrf4g must pint to the folder where these files are located. Alternatively, it is possible to write a [wiki:WRF4G/WRF4GPreprocessor preprocessor] that downloads the data itself. Note that the file names must be parsed by the [wiki:WRF4G/WRF4GPreprocessor preprocessor]. In this case, if both files are located into the same folder, the default [wiki:WRF4G/WRF4GPreprocessor preprocessor] will parse them correctly, since it looks for monthly files with year/month (YYYY/mm) into their names.
     79In this example, the publicly available NCEP Reanalysis (run 1) data are going to be used. This data can be dowloaded from [http://nomad3.ncep.noaa.gov/pub/reanalysis-1/6hr] in GRIB format. These are monthly files that get updated each month nearly in real time. Two files are needed for each month, one with the pressure level data, labeled "pgb", and other one with 2D data, labeled "grb2d". extdata_path defined in experiment.wrf4g must pint to the folder where these files are located. Alternatively, it is possible to write a [wiki:WRF4G/WRF4GPreprocessor preprocessor] that downloads the data itself. Note that the file names must be parsed by the [wiki:WRF4G/WRF4GPreprocessor preprocessor]. In this case, if both files are located into the same folder, and provided the extension ".grb" is appended to them, the default [wiki:WRF4G/WRF4GPreprocessor preprocessor] will parse them correctly, since it looks for monthly files with year/month (YYYY/mm) into their names. For example, the files for December 2010 should be:
     80
     81{{{
     82grb2d201001.grb
     83pgb.ft00.201001.grb
     84}}
    8085
    8186== Creating a WRF experiment ==