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Weather-Climate Connection A THORPEX Theme. Julian Wang NOAA Office of Ocean & Atmosphere Research Silver Spring, MD In collaboration with UIUC, CSU, …. Weather Climate. I C. BC. THORPEX. Years. Hours. assimilation, ensemble, physics …. 7 days. Months. 14 days. 2 weeks. - PowerPoint PPT Presentation
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Weather-Climate ConnectionA THORPEX ThemeJulian WangNOAA Office of Ocean & Atmosphere ResearchSilver Spring, MD
In collaboration with UIUC, CSU,
Weather Climateassimilation, ensemble, physics I CBCHours7 days14 daysYearsMonths2 weeksTHORPEX
Development of CWRF
Weather Research and Forecast ModelClimate-This extension incorporates all WRF functionalities for NWP while enhancing the capability for climate applications.Hence the CWRF can be applied for both weather forecasts and climate predictions.Climate Extension of WRF
CWRF Physics Options
Lateral Boundary optimal buffer zone (planetary-mesoscale energy/mass exchange) Land Surface Model - surface-atmosphere interaction (planetary boundary layer, land surface and terrestrial hydrology)
Convection-Cloud-Radiation Feedback cumulus, cloud microphysics, cloud formation, and radiative transfer (lower cloud)
CWRFSurface Boundary ConditionsUSA SBCs
Surface Characteristic Identification (SCI)
Bedrock, Lakebed or Seafloor Depth (DBED)
Soil Sand and Clay Fraction Profile (SAND, CLAY)
Land Cover Category (LCC)
Terrain Height
Terrain Height Cross-section: Shaping
Comparison in LBCs Mapping
Comparison in LBCs Mapping
CWRFRemote Sensing Data AssimilationSurface Albedo
OLDNEWSavanna
SavannaOLDNEWVisNirDirDifDirDif
CWRFClimate-Hydrology Interaction3D Volume Averaged Soil Moisture Transport Model VAST
Atmosphere-Land Interaction
LandSurfaceModelRegionalClimateModel
3-D VAST based on Richards equation
Concept of 3-D Volume Averaged Soil-moisture Transport model
CWRF ApplicationsMay 2003 Tornado extreme seasonin the United States,morethan 600 observed withinone month.
SummaryThe improved model physics of the CWRF provides possibility for weather-climate application. The CWRF improvements has been, or will be implemented in the DTC and further WRF release.The CWRF physics modules are independent of dynamic core. Australia NMC and the CMA are adapting the CWRF in their operational model system. The CWRF is coupling with sea ice model for IPY applications.