Here are some so far identified issues with euro4m/uerra data interpolation & visualization
RL .. rotated latlon projection
LC .. Lambert conformal projection
Interpolation
1. Interpolation
1a) LIBEMOSlibemos:
RL, LC .. current version cannot handle it
1b) CDO:
RL .. yes (including conversion to NetCDF is asked)
LC .. not
1c) COSMO verification/interpolation package versus:
RL, LC .. yes
1d) MIR (successor of LIBEMOS):
should be able to handle both !i n the future.
2. Visualization
Metview
RL .. some of them yes (mogreps OK, hirlam KO?)
LC .. conversion to geopoints assums always scanningFactor = 64 (= both positive directions)
3. Verification/interpolation package versus (Unknown User (dcesari@arpa.emr.it))
COSMO open source: https://github.com/dcesari/smnd
For interpolating grib data to a regular lat/lon grid one can use after installation the following command:
| Code Block |
|---|
vg6d_transform --trans-type=inter --sub-type=bilin \
--type=regular_ll --nx=... --ny=... \
--x-min=... --y-min=... --x-max=... --y-max=... \
inputfile outputfile |
where one have to fill the parameters of the target grid
Run vg6d_transform without arguments to see the instructions.
The package contains many tools and utilities for managing grib and observed data.
Full manual downloadable at ftp://ftp.smr.arpa.emr.it/incoming/dav/versus/ves.pdf