Sample GFS Warm Restart Files
Required for Running Forecast-only Experiments
Document written by Fanglin.Yang@noaa.gov

A.

Current Operational model (GFS.v15, C768L64).
In operation since 12June20191) Under, for instance, ./​gfs.20200825/00​/
gfs.t00z.atminc.nc
gfs.t00z.dtfanl.nc

RESTART/
20201217.000000.sfcanl_data.tile1.nc
20201217.000000.sfcanl_data.tile2.nc
20201217.000000.sfcanl_data.tile3.nc
20201217.000000.sfcanl_data.tile4.nc
20201217.000000.sfcanl_data.tile5.nc
20201217.000000.sfcanl_data.tile6.nc~12.6GB for this set per cycle2) Under ./​gdas.20201216/18/RESTART​ (27 files)​20201217.000000.coupler.res
20201217.000000.fv_core.res.nc
20201217.000000.fv_core.res.tile1.nc
20201217.000000.fv_core.res.tile2.nc
20201217.000000.fv_core.res.tile3.nc
20201217.000000.fv_core.res.tile4.nc
20201217.000000.fv_core.res.tile5.nc
20201217.000000.fv_core.res.tile6.nc
20201217.000000.fv_srf_wnd.res.tile1.nc
20201217.000000.fv_srf_wnd.res.tile2.nc
20201217.000000.fv_srf_wnd.res.tile3.nc
20201217.000000.fv_srf_wnd.res.tile4.nc
20201217.000000.fv_srf_wnd.res.tile5.nc
20201217.000000.fv_srf_wnd.res.tile6.nc
20201217.000000.fv_tracer.res.tile1.nc
20201217.000000.fv_tracer.res.tile2.nc
20201217.000000.fv_tracer.res.tile3.nc
20201217.000000.fv_tracer.res.tile4.nc
20201217.000000.fv_tracer.res.tile5.nc
20201217.000000.fv_tracer.res.tile6.nc
20201217.000000.phy_data.tile1.nc

20201217.000000.phy_data.tile2.nc
20201217.000000.phy_data.tile3.nc
20201217.000000.phy_data.tile4.nc
20201217.000000.phy_data.tile5.nc
20201217.000000.phy_data.tile6.nc~24GB in this set per cycle

B.

GFS.v16 (C768L127, with Incremental Analysis Update)
to be implemented for operation on February 3, 2021
1) Under, for instance, ​./gfs.20200825/00/atmos
gfs.t00z.atmi003.nc
gfs.t00z.atmi009.nc
gfs.t00z.atminc.nc
gfs.t00z.dtfanl.nc./RESTART
20201216.210000.sfcanl_data.tile1.nc
20201216.210000.sfcanl_data.tile2.nc
20201216.210000.sfcanl_data.tile3.nc
20201216.210000.sfcanl_data.tile4.nc
20201216.210000.sfcanl_data.tile5.nc
20201216.210000.sfcanl_data.tile6.nc~16 GB per cycle2) Under​ gdas.20201216/18/atmos/RESTART
20201216.210000.coupler.res
20201216.210000.fv_core.res.nc
20201216.210000.fv_core.res.tile1.nc
20201216.210000.fv_core.res.tile2.nc
20201216.210000.fv_core.res.tile3.nc
20201216.210000.fv_core.res.tile4.nc
20201216.210000.fv_core.res.tile5.nc
20201216.210000.fv_core.res.tile6.nc
20201216.210000.fv_srf_wnd.res.tile1.nc
20201216.210000.fv_srf_wnd.res.tile2.nc
20201216.210000.fv_srf_wnd.res.tile3.nc
20201216.210000.fv_srf_wnd.res.tile4.nc
20201216.210000.fv_srf_wnd.res.tile5.nc
20201216.210000.fv_srf_wnd.res.tile6.nc

20201216.210000.fv_tracer.res.tile1.nc
20201216.210000.fv_tracer.res.tile2.nc
20201216.210000.fv_tracer.res.tile3.nc
20201216.210000.fv_tracer.res.tile4.nc
20201216.210000.fv_tracer.res.tile5.nc
20201216.210000.fv_tracer.res.tile6.nc
20201216.210000.phy_data.tile1.nc
20201216.210000.phy_data.tile2.nc
20201216.210000.phy_data.tile3.nc
20201216.210000.phy_data.tile4.nc
20201216.210000.phy_data.tile5.nc
20201216.210000.phy_data.tile6.nc

19 GB per cycle

To run a gfs forecast, the model needs to read in 6-hour forecasts from the last
GDAS cycle, analysis increments from the current gfs cycle, and the updated surface
analyses from the current gfs cycle.