NEMS GFS Aerosol Component

Welcome to the operational web site of the NEMS GFS Aerosol Component (NGAC) in NCEP

NEMS GFS Aerosol Component (NGAC) is a global aerosol forecast system where NCEP has adopted NASA GOCART model in NEMS GFS for forecasting dust, sulfate, sea salt, and carbonaceous aerosols. Development and planned operational implementation of the NGAC represents a successful three-year "research to operations" project sponsored by NASA Applied Science Program, Joint Center for Satellite Data Assimilation (JCSDA), and NOAA National Weather Service (NWS).


Brief NGAC Facts


Future operational benefits associated with NGAC

  • Enables future operational global short-range (e.g., 5-day) aerosol prediction
  • Provides global aerosol information required for various applications (e.g., satellite radiance data assimilation, satellite retrievals, SST analysis, UV-index forecasts)
  • Provides a first step toward an operational aerosol data assimilation capability at NCEP
  • Allows NOAA to explore aerosol-chemistry-climate interaction in the operational Climate Forecast System (CFS)--- Note that GFS is a candidate for the AGCM component of the next version of the CFS.
  • Provides lateral aerosol boundary conditions for regional aerosol forecast system

  • Documentations