ENKF ONLINE EXERCISE DATA
Introduction
The EnKF online exercise data sets are available for download from this website, though the data size has been reduced by using only 20 members for an ARW case and 10 members for the global case. There are three tarballs: one for the ARW case (427M) and two for the background ensemble and observations for the global case (3.0G, 453M)
Content of online exercise data
Inside the /data directory (Yellowstone) are separate directories for /arw_2014021300 and /enkf_glb_t254. Inside each of these directories are subdirectories for ensemble member and mean (/bk) and observations (/obs).
/arw_2014021300
/bk
/obs
/enkf_glb_t254
/bk
/obs
The tar files available for download are arw_2014021300.tar.gz, enkf_glb_bk.tar.gz and enkf_glb_obs.tar.gz. Untaring all four results in the following directories:
./enkf_glb_obs
Inside the arw directory is subdirectories for ensemble members and mean (/bk) and observations (/obs).
In the ARW ensemble background directory are files follow the naming convention wrfarw.memXXX where in this instance XXX ranges from 001 to 020. In addition, the ensemble mean of the backgrounds is namedwrfarw.ensmean. The observation directory (/obs) contains a collection of gdas bufr files for various observations types.
In the global model background directory (./enkf_glb_bk) are files following the naming convention sfg_yyyymmddhh_fhrhh_memXXX where in this instance XXX ranges from 001 to 010. In addition, the ensemble mean of the backgrounds is named sfg_yyyymmddhh_fhrhh_ensmean. The observation directory (./enkf_glb_obs) contains a collection of gdas bufr files for various observations types.
After successfully locating or downloading the case data, users can now run the practice cases cases.
