metgrid error ext_pkg_write_field

[lrecchia]

I'm trying to run WRF with SST update, with ERA5 atmospheric data and HYCOM SST data. I've previously run with ERA5 atmospheric+SST and had no issues. I've converted the HYCOM data from netcdf4 to intermediate file format using pywinter, making sure that I regrid HYCOM to ERA5 resolution. I used Vtable.ECMWF in the ungrib step and haven't changed METGRID.TBL since.

Things I've checked:
- ERA5 and HYCOM data on same bounds (global, 0-360E)
- ERA5 and HYCOM data on same grid (0.25 x 0.25deg)
- ERA5 and HYCOM data on same projection = cylindrical equidistant
- have enough space on disk
- land values in HYCOM are nans

Potential issues:
- ERA5 data does include SST on XLVL=200100, but HYCOM SST has level XLVL=201300 [I thought the HYCOM SST would overwrite the ERA5 SST but maybe the levels are an issue?]
- landsea mask

ERA5 atmospheric data from NCAR [grib1]: /glade/campaign/collections/rda/data/d633000/
HYCOM data [netcdf4]: GOFS 3.1: 41-layer HYCOM + NCODA Global 1/12° Analysis
WRF version: 4.6.0
Included files: FILE:* & SST:* intermediate files, metgrid.log, namelist.wps, METGRID.TBL
Files available in box storage under name: lrecchia_metgrid-error.tar

 

[kwerner]

Hi,
The error you're seeing typically means that you are missing surface data and you should check that all your 3d meteorological fields include surface-level data.

 

[lrecchia]

Edit: the fix was changing the level in the pywinter source code [pywinter -> winter.py] from 201300 to 200100 for the variable 'SST'.

 

[kwerner]

Thanks for updating!