WRF Objective Analysis Program 

The WRF Objective analysis (OA) program is a program
that blends observations (in the form of ASCII format) and background
(first guess) fields from WPS/metgrid. It provides a simple way to
add observations to the incoming data from another model.

For questions and help to run the program, please see Chapter 7 of the WRF Users' Guide:
http://www2.mmm.ucar.edu/wrf/users/docs/user_guide_v4/contents.html
For information on observation nudging and how OBSGRID can be used to prepare
observations for use in observation nudging also see the Observation Nudging Users' Guide: 
http://www2.mmm.ucar.edu/wrf/users/docs/ObsNudgingGuide.pdf

For support questions, please post to the WRF/MPAS/WRFDA/WRF-Chem User Support Forum:
http://forum.mmm.ucar.edu/phpBB3/
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Main program: obsgrid.exe

- Perform objective analysis.

Utility programs: plot_levels.exe, plot_soundings.exe

- Make plots of observation data on pressure levels, and skew-T.

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How to compile and run?

To create a configure file for your computer, type

./configure

and choose an option that best suits your computer environment.

To compile, type

./compile >& compile_oa.out &

To run, edit namelist.oa, and type the following to run:

./obsgrid.exe

Input files to this program:

- Output from metgrid: met_em.d01.<date> 
- Observations in the format ('little_r' format) described in the User's Guide.