GLOBAL FORECAST SYSTEM
Q1FY14 global model upgrade
Potential components (note none of these have been agreed upon, this is just a list of possibilities):
Q1FY15 global model upgrade
Potential components (note none of these have been agreed upon, this is just a list of possibilities)
Potential components (note none of these have been agreed upon, this is just a list of possibilities):
- T1148 (or higher) Semi-Lagrangian
- More accurate spectral-grid transforms
- Reduced grid consistency when creating orographic fields
- Use of high resolution daily SST analysis
- Use of high resolution sea ice
- Physics
- Cloud estimate modifications
- EDMF parameterization
- Dissipation heating paramterization
- Convective gravity wave drag
- McICA
- Modify how GFS diagnoses snow accumulation to be consistent with post
- Land Surface - Removal of soil moisture nudging
- Unification of analysis ensemble with GEFS ensemble
- Ensemble resolution increase to T574L64
- Analysis upgrades - See Q1FY14 global GSI implementation roadmap
- Post Processor
- Faster/less memory version
- Updated version to use new crtm 2.1.1
- add user requested fields
- H/T/U/V at FL410,
- ozone at 150, 200, 250, 300, 350, and 400 mb,
- 2m dew point,
- wind chill and heat index,
- instantaneous precipitation type
- membrane SLP in GDAS pgb files
- Improved in flight icing algorithm in post
- Consolidation of GFS master file creation with GFS DNG, similation of GOES radiances and WAFS
Q1FY15 global model upgrade
Potential components (note none of these have been agreed upon, this is just a list of possibilities)
- Components which did not make Q1FY15 upgrade
- Increased horizontal and vertical resolution (~T1500L90) semi-lagrangian model
- Physics - Convective gravity wave drag and other non-orographic gravity wave drag
- Coupled Ocean-Atmosphere-Ice
- NSST - diurnal cycle in ocean skin temperature
- Removal of redundant output files (NEMS or sigma/flux)
- Land Surface - prediction of lake temperatures (FLAKE)
- Post-processor - Unification of downstream processing
- Analysis changes (see GSI Roadmap)
- Ensemble changes (see global ensemble roadmap)