1. NOAAs Comprehensive Large-data Array Stewardship System (CLASS) Robert Rank NOAA CLASS Program Chris Elvidge – NOAA-NGDC January 22, 2006

2. Comprehensive Large Array- data Stewardship System (CLASS) NOAA's National Data Centers and their world-wide clientele of customers look to CLASS as the sole NOAA IT infrastructure project in which all NOAAs current and future environmental data sets will reside. CLASS provides permanent, secure storage, and safe, efficient data discovery and access between the Data Centers and the customers.

3. CLASS Overview CLASS is a web-based data archive and distribution system for NOAAs environmental data CLASS is an evolving system which will support additional campaigns, broader user base, new functionality as implementation continues for the next 10 years CLASS is the principal IT system supporting NOAAs responsibility as environmental data stewards CLASS concurrently supports both ongoing operations and new requirements implementation CLASS concurrently supports both ongoing operations and new requirements implementation

4. Two CLASS Nodes Being Established NOAAs National Data Centers are major archive, access, and assessment sites maintaining, processing, and distributing NOAAs environmental and geospatial data. National Climatic Data Center – WWW.NCDC.NOAA.GOV National Climatic Data Center – WWW.NCDC.NOAA.GOVWWW.NCDC.NOAA.GOV Asheville, NC National Geophysical Data Center – WWW.NGDC.NOAA.GOV National Geophysical Data Center – WWW.NGDC.NOAA.GOV WWW.NGDC.NOAA.GOV Boulder, CO

5. CLASS Architecture - Future

6. Major Data Sets To Be In CLASS NOAA and Department of Defense (DoD) Polar-orbiting Operational Environmental Satellites (POES) and Defense Meteorological Satellite Program (DMSP) NOAA and Department of Defense (DoD) Polar-orbiting Operational Environmental Satellites (POES) and Defense Meteorological Satellite Program (DMSP) NOAA Geostationary Operational Environmental Satellites (GOES) NOAA Geostationary Operational Environmental Satellites (GOES) EUMETSAT Meteorological Operational Satellite (Metop) Program EUMETSAT Meteorological Operational Satellite (Metop) Program NOAA NEXT generation weather RADAR (NEXRAD) Program and future dual polarized and phased-array radars. NOAA NEXT generation weather RADAR (NEXRAD) Program and future dual polarized and phased-array radars. National Aeronautics and Space Administration (NASA) Earth Observing System (EOS) Moderate-resolution Imaging Spectrometer (MODIS) National Aeronautics and Space Administration (NASA) Earth Observing System (EOS) Moderate-resolution Imaging Spectrometer (MODIS) The NPOESS Preparatory Project (NPP) The NPOESS Preparatory Project (NPP) National Polar-orbiting Operational Environmental Satellite System (NPOESS) National Polar-orbiting Operational Environmental Satellite System (NPOESS) National Centers for Environmental Prediction Model Datasets, including Reanalysis Products National Centers for Environmental Prediction Model Datasets, including Reanalysis Products