Modeling and Data Assimilation
| An integrated high-frequency model/assimilation system (RUC) is developed by scientists in GSD's Assimilation and Modeling Branch (AMB) in coordination with NOAA/NCEP to support NWS, other components in NOAA, and the aviation community including FAA with accurate short-range forecasts based on latest hourly observations. AMB scientists improve the RUC high-resolution model and physical parameterizations, and continually refine the RUC assimilation system. | |
| Rapid Refresh (RR) | |
| GSD's Assimilation and Modeling Branch (AMB) scientists lead development of the next-generation replacement for the (RUC), the Rapid Refresh (RR). The RR is also an hourly assimilation/model system, much like the RUC, but differs from the RUC in many ways. | |
| WRF-Chem | |
| GSD's Assimilation and Modeling Branch (AMB) is leading the development of a next- generation coupled weather/air quality numerical prediction system based upon the Weather Research & Forecast (WRF) model, called WRF-Chem. Gas-phase chemistry and aerosol processes are tightly coupled to meteorology within the WRF model structure. Since the model also includes the aerosol direct and indirect effect in addition to sophisticated microphysics packages, WRF-Chem can be used for process studies that are extremely relevant for global change predictions. WRF-Chem has a large international user base and, in addition to studying global change processes, is used to predict weather, dispersion, and air quality. | |
| Weather Research & Forecast Model (WRF) (external Web site) | |
| The Weather Research and Forecast Model is a collaborative partnership to develop an advanced mesoscale forecast and assimilation system, and accelerate research advances into operational forecasting. | |
| Flow-following Finite-volume Icosahedral Model (FIM) | |
| NOAA/ESRL scientists have developed an initial version of a new global model including use of the adaptive isentropic-sigma hybrid vertical coordinate successful with the RUC model, accurate finite-volume horizontal advection, and use of an icosahedral horizontal grid. ESRL is collaborating with NCEP/EMC on development of the FIM model, and was aided by GFDL on its initial design. | |
| This system integrates data from virtually every meteorological observation system into a very high-resolution gridded framework centered on a forecast office's domain of responsibility. | |
| This surface data assimilation system produces hourly analyses of meteorological conditions at the earth's surface. MSAS also runs operationally at the National Centers for Environmental Prediction (NCEP), and in NWS forecast offices as part of the AWIPS system. | |
WRF Developmental Testbed Center (external Web site) |
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| The Developmental Testbed Center (DTC) is a facility where the NWP (Numerical Weather Prediction) research and operational communities interact to accelerate testing and evaluation of new models and techniques for research applications and operational implementation, without interfering with current operations. | |
| The two primary objectives of the MAPP project are: (1) to port primary scientific codes to NOAA's three HPC systems, and (2) to develop a web-based portal to permit users to configure and run the codes on these systems. | |
| WRF Portal is a Java webstart GUI application that simplifies the configuring and running of WRF models, and it includes the WRFSI GUI (Domain) Tool that allows you to graphically select/define your domain. | |