| Dataset | Resolution | Link |
| GFS Final Analysis | 1 degree | http://dss.ucar.edu/datasets/ds083.2/ |
| GFS Final Analysis | 0.5 degree | http://dss.ucar.edu/dsszone/ds335.0/index.html?g=9 |
| Recent GFS Analysis and Forecasts | 0.5 degree | ftp://ftp.ncep.noaa.gov/pub/data/nccf/com/gfs/prod |
| PreBUFR obs | NA | http://dss.ucar.edu/datasets/ds337.0/ |
| SST data | 0.5 | ftp://ftpprd.ncep.noaa.gov/pub/data/nccf/com/gfs/prod/sst.<date> |
| Archived GFS forecast | 1 degree 0.5 degree | http://nomads.ncdc.noaa.gov/data.php?name=access#hires_weather_datasets |
| Archived GFS forecast | 1 degree | http://dss.ucar.edu/datasets/ds335.0/MSS-rqst-list.html?g=10 |
| Blended ocean winds | 0.25 degree | http://www.ncdc.noaa.gov/oa/rsad/air-sea/seawinds.html |
| Dataset | Resolution | Link |
| Dataset | Resolution | Link |
GFS final analyses are readily available archived back to 2000. However, using these as boundary conditions all the way through a forecast is cheating. At the time of doing a forecast, you only have one analysis available, and have to rely on a global forecast for your future boundary conditions.
Archived GFS forecasts are available from NOMADS. These are kept 'online' for 1 year. Archived forecasts are available 'offline' back to 2005 for 1 degree and 2006 for 0.5 degree forecasts. However, my requests for online data didn't match any files. Offline means you have to wait for the request to get processed, and can only request 14 days at a time. Also the offline system will close to new order when 45 orders are sitting in the queue. A lot of good links to NOMAD servers are available here: http://nomad5.ncep.noaa.gov/
The GFS forecast cycle is at 00, 06, 12 and 18, and the forecast interval is 3 hours from out to 180 hours. The resolution of the GFS forecast grids are:
- #004 0.5 degree (output in grib 2 format)
- #003 1.0 degree
- #002 2.5 degree
No comments:
Post a Comment