MODIS Data Available through SeaWiFS/SIMBIOS
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MODIS Data Available through SeaWiFS/SIMBIOS an Ocean Discipline Prototype for VIIRS. NPP Prototyping Activities. Using MODIS data to develop prototype for NPP/VIIRS ocean data processing, distribution, and community support

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MODIS Data Available through SeaWiFS/SIMBIOSan Ocean Discipline Prototype for VIIRS


Npp prototyping activities
NPP Prototyping Activities

  • Using MODIS data to develop prototype for NPP/VIIRS ocean data processing, distribution, and community support

    • design based on ‘lessons learned’, capitalize on what already exists, strive for flexibility

  • Infrastructure Development

    • interfaces, data flow and volume, ancillary data requirements, processing capacity

  • Processing Capability

    • flexible software design to facilitate algorithm implementation, modification, and verification


Modis data available
MODIS Data Available

  • Level-1A (MOD01SS) ocean subsetted L1A from GSFC DAAC.

  • Geolocation, (MOD03) generated from definitive attitude and orbit using UW IMAPP (slightly modified)

  • Level-1B (MOD02) generated with standard MCST code and LUTs

  • Level-2, generated using SeaWiFS/SIMBIOS MSL12 code and current RSMAS vicarious calibration


Level 2 product suite
Level-2 Product Suite

  • Normalized radiances in 6 bands

  • OC3M Chlorophyll (chlor_a2)

  • SST (11um, standard MODIS nlsst algorithm and coefficients

  • K490, AOT(869), Ångstrom

  • Typical files size for 5-minute granual is 10-20 MB, compressed.

  • Other products can be generated with MSL12 (flexibility)


Data distribution
Data Distribution

  • Direct download from the SeaWiFS browser http://seawifs.gsfc.nasa.gov/

  • Single file point-and-click download and bulk order staging for ftp pull

  • Rolling archive of most recent MODIS data on anonymous ftp site

  • Near real-time image support

    22 cruises since support for MODIS data added on July 9. 70% of those asked for MODIS data in addition to SeaWiFS.


Rolling archive
Rolling Archive

  • Anonymous ftp site ftp://oceans.gsfc.nasa.gov/

  • Most recent 10 days of MODIS/Aqua and MODIS/Terra

  • Level-1A, Level-1B, Level-2, and Geolocation available


Summary
Summary

  • A prototype data processing and distribution system for NPP/VIIRS is being developed using MODIS data.

  • Data production is now operational, and the products are freely available.

  • Methods of data distribution are in place, and enhancements continue.

  • We encourage you to evaluate the system and products, and we welcome your feedback.


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