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/ =================================================== 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. =================================================== 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.