Ocean diagnostics observation files

For the ocean diagnostics, some of the observations files need to be regridded to accommodate newer grids or vertical levels for comparison with ocean model data. Here are some notes from @altuntas.

To generate PHC and SSH obs files, I wrote and executed the following ncl scripts. These scripts simply read the old OBS files (tx0.1v2) and remove Caspian sea:

• /glade/p/cesm/omwg/obs_data/phc/dev/make_PHC2_PD_tx0.1v3.ncl
• /glade/p/cesm/omwg/obs_data/phc/dev/make_PHC2_TEMP_tx0.1v3.ncl
• /glade/p/cesm/omwg/obs_data/phc/dev/make_PHC2_SALT_tx0.1v3.ncl
• /glade/p/cesm/omwg/obs_data/phc/dev/make_PHC2_SSH_tx0.1v3.ncl
• /glade/p/cesm/omwg/obs_data/phc/dev/make_PHC2_RHO0_tx0.1v3.ncl

timeseries_obs files: I documented how I generated timeseries_obs files in the following readme file:

• /glade/p/cesm/omwg/timeseries_obs_tx0.1v3_62lev/README

grid_info file: I simply ran the following command to extract grid information from model output:

ncks -v KMT,TAREA,TLAT,TLONG,UAREA,ULAT,ULONG /glade/scratch/altuntas/archive/g.e20.G.TL319_t13.startup.001/ocn/hist/g.e20.G.TL319_t13.startup.001.pop.h.0001-01.nc tx0.1v3_62lev_grid_info.nc