These tools can be seen at https://git.ecmwf.int/users/dako/repos/tools/browse.

Convert CCI Snow to GRIB at TCo1279

• https://git.ecmwf.int/users/dako/repos/tools/browse/convert_cci
  • download_[http,ftp].sh: download the CryoClim snow cover from the website or the FTP site
  • convert.sh: convert the original NetCDF files to GRIB files at a resolution of TCo1279 and plot the snow cover fraction
• The converted GRIB files are used in the offline LDAS for SEAS6 reforecasts

Convert IMS to GRIB at TCo1279

• https://git.ecmwf.int/users/dako/repos/tools/browse/convert_ims
  • download.sh: download the IMS snow cover from the FTP site
  • convert.sh: convert the original ascii files to GRIB files at a resolution of TCo1279 and plot the snow cover fraction
• The converted GRIB files are used in the offline LDAS for SEAS6 reforecasts

Climatological snow cover fraction based on IMS

• https://git.ecmwf.int/users/dako/repos/tools/browse/clim_ims
  • mk_clim.sh: create climatological snow cover fraction based on IMS from 2006 to 2020 (15 years), at first TCo1279 then converted to 0.05 degrees
• Used in the offline LDAS for SEAS6 reforecasts (TCo1279)
• Used for quality control of the CCI Snow assimilated in ERA6 (0.05 degrees)

Encode BUFR from CCI Snow for ERA6

• https://git.ecmwf.int/users/dako/repos/tools/browse/encode_cci
  • orog.sh: copy the orography file at TCo3999 and convert it to 0.05 degrees by the command below (to avoid MEMKILL)

srun -c 32 --mem=64GB ./orog.sh

• • encode_cci.sh: encode BUFR files from the original NetCDF files (climatological QC is applied here using the SCF above)

Snow tracker

/perm/dako/tools/snow_tracker/2005-2020

Convert in situ snow observations to GRIB at TCo1279

/perm/dako/plot/synop

• Used for the following validation

Validate snow cover products against in situ observations

/perm/dako/verif/snow_product