COAPS data server


You can download a number of input files for the model from COAPS data server, coaps.fsu.edu by anonymous
ftp ftp.coaps.fsu.edu
cd /pub/ECPC/kana
Please contact Haiqin Li (haiqin.li@fsu.edu) if you have any problems to access the data server.

Reanalysis data are on T62, 28 sigma levels and in ieee format.

  • NCEP/NCAR Reanalysis (R1) sigma files: every 6 hours, /r1/$DECADE/$YEAR/sig.$YEAR$MONTH$DAY$HOUR.ieee . These data are regularly downloaded from a NCEP server (ftp nomad3.ncep.noaa.gov >> cd pub/reanalysis-1/6hr/rotating; The files are named sanl*. We rename them sig.*.ieee. See also "N/N Reanalysis rotating" at http://nomad3.ncep.noaa.gov/ncep_data/ ).

  • NCEP/NCAR Reanalysis (R1) surface files: first hour of the month only, /r1/$DECADE/$YEAR/sfc.$YEAR$MONTH0100.ieee. From 1948 to May 1957, the first 3rd hour, i.e., sfc.$YEAR$MONTH0103.ieee. The latest sfc files can be downloaded from the same NCEP server as sigma files (We rename the files from sfcanl* to sfc.*.ieee).

  • NCEP/DOE Reanalysis (R2) sigma files: every 6 hours, /r2/$YEAR$MONTH/ncep/anl/sig.anl.$YEAR$MONTH$DAY$HOUR.ieee

NOTE: Older Reanalysis files can be downloaded from NCAR. You might need an account with them. http://dss.ucar.edu/pub/reanalysis/
If you download older files (before 1996 or 1997) from the NCAR server, you might need to use libs/etc/cosread to convert the files to the right format. A correct sfc file is size 1155252 and a correct sig file is size 1840400 after conversions.

For detailed information of R1 see the following web sites:
http://dss.ucar.edu/pub/reanalysis/
http://dss.ucar.edu/pub/reanalysis/aval_ftyp.html
http://dss.ucar.edu/pub/reanalysis/CRAY_bin.html
http://dss.ucar.edu/datasets/ds090.0/docs/variablelists/summary
http://dss.ucar.edu/pub/reanalysis/prod_des.html
sigma files may be referred to as sanl and surface fiels may be called sfcanl.

SST and ice files are in GRIB format.

  • Daily SST grib files: /sfcanl/$YEAR/sst.grib
  • Daily ice grib files: /sfcanl/$YEAR/ice.grib


Files related to discussions

ncepftp script - downloads latest analysis from NCEP.
comparison of forecasts generated by GSM based on N/N Re-analysis data and GFS output