Initialization. III: Real Data initialization

Initialization. III: Real Data initialization

Dave Gillgill@ucar.edu

http://wrf-model.org

This one time, at band camp, we tried to run the WRF model. It was so funny.

Real-time WRF User Support

Assuming I have the SI data, what next?

The WRF model requires additional processing on the SI data before it can be input. The input variables are used for additional diagnostics, balancing, and coupling. This is handled in the pre-processor program real.exe. Currently, this program ONLY runs on a single processor. The real.exe program outputs data in a format similar to the WRF model (wrfinput and wrfbdy).

How to build eh real.exe and wrf.exeGet the WRFV1 tar fileunzip and untar the filecd ./WRFV1cd ./WRFV1

configureconfigure

compile eh_realcompile eh_real

cd ./test/eh_realcd ./test/eh_real

vi namelist.inputvi namelist.input

What to modify in the ./test/eh_real namelist.input

&namelist_01time_step_maxtime_step_max

&namelist_02s_we , s_sn , s_verts_we , s_sn , s_verte_we , e_sn , e_verte_we , e_sn , e_vert

&namelist_03ztopztopdx = dydx = dydtdt

You get help ifyou mess these up

You get help

eh_real namelist.input, #2&namelist_04

specifiedspecified

&namelist_05start_year , start_month , start_day , start_year , start_month , start_day , start_hourstart_hour

end_year , end_month , end_day , end_year , end_month , end_day , end_hourend_hour

intervalinterval

real_data_init_typereal_data_init_typePanic oriented

help

The Entire namelist.input file./test/eh_real/namelist.input

The Meteorological Input Data

You need to have the wrf_input.d01.YYYY-wrf_input.d01.YYYY-MM-DD_hh:mm:ssMM-DD_hh:mm:ss and the wrf_input.global_datawrf_input.global_data

files available from the WRF SI program (linked into the ./WRFV1/test/eh_real./WRFV1/test/eh_real directory is adequate)

These files, one for each time period, are input to the program real.exereal.exe

Running real.exe and wrf.exeIn the ./WRFV1/test/eh_real./WRFV1/test/eh_real directory,

./real.exe./real.exe

And then if you have the following files output from the program real.exereal.exe: wrfinput, wrfinput, wrfbdywrfbdy

Then, you get to run: ./wrf.exe./wrf.exe

MM5 IC WRF ic