|MPAS Home Page||Old MPAS
forecast results page
|New MPAS forecast results page
|The MPAS group in MMM/NCAR
is performing a real-time convection prediction experiment with
from 4 May to 29 May 2015. We are producing 5 day forecasts
initialized at 0 UTC from the operational GFS analysis.
We are continuing the MPAS forecasts through the PECAN field experiment, producing 3-day forecasts initialized at 0 UTC from the operational GFS analysis.
The May forecasts are using 50-3 km variable-resolution that places the 3 km cell spacing over North America. The mesh spacings for the variable-resolution meshes are depicted below. The June forecasts are using a 15-3 km mesh (depicted below the 50-3 km mesh).
|Mesh used for the May forecasts|
|Mesh used for the June-July (PECAN) forecasts|
|The physics used in these
forecasts, taken from the WRF model, are
Surface Layer: module_sf_mynn.F as in WRF 3.5.
PBL: Mellor-Yamada-Nakanishi-Niino (MYNN) as in WRF 3.6.1.
Land Surface Model (NOAH 4-layers): as in WRF 3.6.1.
Gravity Wave Drag: none
Convection: Grell-Freitas scale aware scheme (modified from WRF 3.6.1)
Microphysics: WSM6: as in WRF 3.5
Radiation: RRTMG sw as in WRF 3.4.1; RRTMG lw as in WRF 3.4.1