Terra and aqua MODIS products available from NASA GES DAAC

The NASA Goddard Earth Sciences Distributed Active Archive Center (GES DAAC), known as GSFC-ECS in the Earth Observing System Data Gateway, distributes three major groups of MODIS products: Level 1 Radiometric and Geolocation data, and Level 2 and higher level of Atmosphere and Ocean products. The Atmosphere data types are aerosol, water vapor, cloud, temperature and moisture profiles, and cloud mask. The 107 (at present) Ocean data types include such parameters as normalized water-leaving radiances, chlorophyll and pigment concentrations ("ocean color"), total absorptions, sea surface temperatures, and ocean primary productivity. GES DAAC provides a broad spectrum of MODIS support, covering; data access, visualization tools, tools for search and order of the aforementioned data, documentation, data content, troubleshooting, and science and software support for the Earth Observing System Core System (ECS). The Web gateway for MODIS data products and services is http:// daac.gsfc.nasa.gov/MODIS/. (C) 2004 COSPAR. Published by Elsevier Ltd. All rights reserved.