modis data available through seawifs/simbios an ocean discipline prototype for viirs
DESCRIPTION
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 - PowerPoint PPT PresentationTRANSCRIPT
MODIS Data Available through SeaWiFS/SIMBIOSan Ocean Discipline Prototype for VIIRS
VII
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anNPP 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
VII
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anMODIS 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
VII
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anLevel-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)
VII
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anData 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 dataadded on July 9. 70% of those asked forMODIS data in addition to SeaWiFS.
VII
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anRolling 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
VII
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anSummary
• 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.