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Atlantic RTOFS produces a number of different GRiB files. Surface fields are produced every hour and full-volume fields are produced every 24 hours. A 24-hour nowcast, or analysis, is run and is followed by forecasts out to 120 hours.
For the full-volume gribs we produce two distinctly different types. The first type contain the model data referenced to the native horizontal grid and the vertical hybrid coordinates. The second type is also referenced on the native horizontal grid but the vertical coordinates have been interpolated to 40 fixed depths.
For the surface gribs we produce two different types as well. The first type are the surface values on the native horizontal grid while the second type are gribs that have been interpolated to a rectangular (or standard) latitude-longitude grid. Finally, some of the standard lat/lon GRiB files have been subsetted, or reduced to a smaller domain. The subdomain is indicated with an abbreviation as part of the file name.
More information on the model grids defined in the Atlantic RTOFS GRiB files can be found in the NCO Master List of NCEP Storage Grids.
GRiB file name | Description |
---|---|
ofs_atl.t00z.F024.grb | 24 hour forecast, full volume at Z-levels |
ofs_atl.t00z.F024.3d.grb | 24 hour forecast, full volume at native levels |
ofs_atl.t00z.F024.3d.g_mx.grb | 24 hour forecast, full volume, gulf of mexico region at native levels |
ofs_atl.t00z.F024.3d.nw_atl_mid.grb | 24 hour forecast, full volume, middle Atlantic region at native levels |
ofs_atl.t00z.F024.3d.nw_atl_north.grb | 24 hour forecast, full volume, northern Atlantic region at native levels |
ofs_atl.t00z.F024.3d.nw_atl_south.grb | 24 hour forecast, full volume, southern Atlantic region at native levels |
ofs_atl.t00z.f001.grb | 1 hour surface, partial set |
ofs_atl.t00z.f001.3d.grb | 1 hour surface, all fields |
ofs_atl.t00z.f001.3d.g_mx.grb | 1 hour forecast, surface, Gulf of Mexico region |
ofs_atl.t00z.f001.3d.nw_atl_mid.grb | 1 hour forecat, surface, middle Atlantic region |
ofs_atl.t00z.f001.3d.nw_atl_north.grb | 1 hour forecat, surface, northern Atlantic region |
ofs_atl.t00z.f001.3d.nw_atl_south.grb | 1 hour forecat, surface, southern Atlantic region |
ofs_atl.t00z.f001.atl.grb.std | 1 hour forecast, lat-lon grid, Atlantic basin |
ofs_atl.t00z.f001.gm.grb.std | 1 hour forecast, lat-lon grid, Gulf of Mexico region |
ofs_atl.t00z.f001.gma.grb.std | 1 hour forecast, lat-lon grid, Gulf of Maine region |
ofs_atl.t00z.f001.gs.grb.std | 1 hour forecast, lat-lon grid, Gulf Stream region |
Parameter Name | Definition [units] |
---|---|
DZDT | Geometric vertical velocity [m/s] - 40 Z-levels |
SSHG | Sea Surface Height Relative to Geoid [m] |
MIXHT | Mixed layer depth [m] |
UOGRD | u of current [m/s] - 40 Z-levels |
VOGRD | v of current [m/s] - 40 Z-levels |
WTMPC | In-situ Temperature [C] - 40 Z-levels |
SALIN | Salinity [psu] - 40 Z-levels |
LOUV | Longitude of U wind component of velocity [deg] |
LAUV | Latitude of U wind component of velocity [deg] |
LOVV | Longitude of V wind component of velocity [deg] |
LAVV | Latitude of V wind component of velocity [deg] |
LOPP | Longitude of pressure point [deg] |
LAPP | Latitude of pressure point [deg] |
Parameter Name | Definition [units] |
---|---|
EMNP | Evaporation - Precipitation [cm/day] |
LHTFL | Latent heat flux [W/m^2] |
SHTFL | Sensible heat flux [W/m^2] |
SSHG | Sea Surface Height Relative to Geoid [m] |
MNTSF | Montgomery stream function [m^2/s^2] |
UMLU | U Velocity in mixed layer [m/s] |
UMLV | V Velocity in mixed layer [m/s] |
MIXHT | Mixed layer depth [m] |
OMLT | Mixed Layer Potential Temperature [C] |
OMLS | Salinity [psu] |
OMLPOTDEN | Ocean Mixed Layer Potential Density (Referenced to 2000m) [kg/m^3] |
UBARO | Barotropic U Velocity [m/s] |
VBARO | Barotropic V Velocity [m/s] |
UOGRD | u of current [m/s] - native levels |
VOGRD | v of current [m/s] - native levels |
LAYTH | Layer Thickness[m] - native levels |
WTMPC | Potential Temperature [C] - native levels |
SALIN | Salinity [psu] - native levels |
DEN | Density [kg/m^3] - native levels |
LOUV | Longitude of U wind component of velocity [deg] |
LAUV | Latitude of U wind component of velocity [deg] |
LOVV | Longitude of V wind component of velocity [deg] |
LAVV | Latitude of V wind component of velocity [deg] |
LOPP | Longitude of pressure point [deg] |
LAPP | Latitude of pressure point [deg] |
Parameter Name | Definition [units] |
---|---|
SSHG | Sea Surface Height Relative to Geoid [m] |
MNTSF | Montgomery stream function [m^2/s^2] |
MIXHT | Mixed layer depth [m] |
UBARO | Barotropic U Velocity [m/s] |
VBARO | Barotropic V Velocity [m/s] |
UOGRD | u of current [m/s] |
VOGRD | v of current [m/s] |
WTMPC | In-situ Temperature [C] |
SALIN | Salinity [psu] |
LOUV | Longitude of U wind component of velocity [deg] |
LAVV | Latitude of U wind component of velocity [deg] |
LOVV | Longitude of V wind component of velocity [deg] |
LAVV | Latitude of V wind component of velocity [deg] |
LOPP | Longitude of pressure point [deg] |
LAPP | Latitude of pressure point [deg] |
Parameter Name | Definition [units] |
---|---|
EMNP | Evaporation - Precipitation [cm/day] |
LHTFL | Latent heat flux [W/m^2] |
SHTFL | Sensible heat flux [W/m^2] |
SSHG | Sea Surface Height Relative to Geoid [m] |
MNTSF | Montgomery stream function [m^2/s^2] |
OMLU | U Velocity in mixed layer [m/s] |
OMLV | V Velocity in mixed layer [m/s] |
MIXHT | Ocean Mixed layer depth [m] |
OMLT | Ocean Mixed Layer Potential Temperature [C] |
OMLS | OCean Mixed Layer Salinity [psu] |
OMLPOTDEN | Ocean Mixed Layer Potential Density (Referenced to 2000m) [kg/m^3] |
UBARO | Barotropic U Velocity [m/s] |
VBARO | Barotropic V Velocity [m/s] |
UOGRD | u of current [m/s] |
VOGRD | v of current [m/s] |
LAYTH | Layer Thickness[m] |
WTMPC | Potential Temperature [C] |
SALIN | Salinity [psu] |
DEN | Density [kg/m^3] |
LOUV | Longitude of U wind component of velocity [deg] |
LAUV | Latitude of U wind component of velocity [deg] |
LOVV | Longitude of V wind component of velocity [deg] |
LAVV | Latitude of V wind component of velocity [deg] |
LOPP | Longitude of pressure point [deg] |
LAPP | Latitude of pressure point [deg] |
Parameter Name | Definition [units] |
---|---|
WTMP | Potential Water Temp. [K] |
DSLM | Deviation of sea level from mean [m] |
SALTY | Salinity [kg/kg] |
UOGRD | u of current [m/s] |
VOGRD | v of current [m/s] |
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Page last modified: Friday, 05-Oct-2012 19:15:13 UTC