National Aeronautics and Space Administration official home page


University of Rhode Island official home page


Graduate School of Oceanography at the University of Rhode Island official home page


Other Data Portals:

Sea Surface TemperatureSea surface temperature field for the western North Atlantic showing the Gulf Stream off the eastern coast of the United States

Sea Surface HeightSea Surface Height field of the eastern Pacific Ocean showing a strong El Nino.

Ocean Surface WindsSurface ocean wind field under a hurricane.

Ocean ColorChlorophyll field of the North and South Atlantic.

Ocean Surface PrecipitationRainfall intensity near the center of Hurricane Katrina shows areas of deep convection where latent heat is being released into the storm.

Other Ocean DataAverage distribution of water vapor in January 2003, measured from the Earth's surface to the top of the atmosphere.

Chlorophyll field of the North and South Atlantic.

Ocean Color Data Portal

The following list summarizes some of the important characteristics of OPeNDAP served data sets accessible through this portal. Graphical User Interfaces (GUIs) have been developed to search and access some of these data collections and can be acquired in the Matlab OPeNDAP Ocean Toolbox. These data sets, which are primarily produced from SeaWiFS and MODIS observations, have all been organized and more fully described in a THREDDS catalog. This catalog includes important metadata, as well as enabling further access to the data down to the granule level.

All of the following data collections are available via OPeNDAP command line clients:

  • U.S JGOFS SeaWiFS Mapped Chlorophyll Concentration of the global ocean was produced using 8-day composite SeaWiFS imagery. The SeaWiFS instrument has been in sun-synchronous orbit since 1997. This weekly time series was produced on a 1° square global grid from 1997 through 2004. A Matlab GUI has not yet been planned for this data set.
  • NOAA/Coastwatch MODIS Chlorophyll Concentrations were derived from the MODIS sensor aboard NASA's Terra and Aqua satellites in sun-synchronous orbit since 2000 and 2002, respectively. The time series data are at 1.25 km resolution for the West Coast region and 2.5 km globally and are available at daily, 3 day, 8 day and 14 day temporal resolutions. These data have been produced with several different algorithms and are considered an experimental product for research purposes. As such, a Matlab GUI has not been proposed yet for this data collection.

In addition, the following data collection is also available through the Matlab OPeNDAP Ocean Toolbox:

  • NASA/GSFC/CSIRO CZCS, SeaWiFS and MODIS Ocean Color data consists of satellite measurements of chlorophyll concentrations obtained by SeaWiFS and MODIS in sun-synchronous orbit on the OrbView-2 (formerly SeaStar) and Aqua platforms, respectively. This collection also includes CZCS data and a merged Level-3 chlorophyll product derived from both SeaWiFS and MODIS data. These global time series data were produced by the Ocean Biology Processing Group (OBPG) at Goddard and are served by the Marine and Atmospheric Research Remote Sensing facility at CSIRO. The data are available monthly (CZCS), weekly (CZCS, SeaWiFS, MODIS, Merged) and daily (Merged) at 9 km spatial resolution since 1997 (SeaWiFS) and 2002 (MODIS, Merged). A higher resolution, 4 km MODIS product is also available. A Matlab GUI has been developed for these data and is available in the Matlab OPeNDAP Ocean Toolbox.