PoDAG XXII: MODIS Status

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Presentation transcript:

PoDAG XXII: MODIS Status Marilyn Kaminski MODIS Product Team Lead June 3, 2004

Basic MODIS Operations Two instruments EOS Terra, Dec ’99 launch, 10:30 am equatorial crossing (descending) EOS Aqua, May ’02 launch, 1:30 pm equatorial crossing (ascending) Instruments intended to be identical, but aren’t … especially for snow&sea ice products Many sensors on Aqua Band 6 nonfunctional Aqua snow and sea ice algorithms modified to use Band 7 instead PoDAG XXII Marilyn Kaminski, MODIS Product Team Lead June 3, 2004

NSIDC’s Current MODIS Product Suite Snow Products (Terra, Aqua) MxD10_L2: Level 2 5-minute swath, 500 m MxD10A1: Level 3 snow cover and snow albedo, daily, SIN grid, 500 m MxD10A2: Level 3 snow cover, 8-day, SIN grid, 500 m MxD10C1: Level 3 snow cover, daily, 0.05° CMG MxD10C2: Level 3 snow cover, 8-day, 0.05° CMG Sea Ice Products (Terra, Aqua) MxD29: Level 2 5-minute swath, 1 km MxD29P1D:Level 3 sea ice extent, daily, day, EASE-grid, 1 km MxD29P1N:Level 3 sea ice extent, daily, night, EASE-grid, 1 km (MYD29P1N not yet released to public) MxD29E1D:Level 3 sea ice extent and ice surface temperature, daily, EASE-grid, 4 km Current Available Time Series: Terra/Version 4 complete from Feb 2000 onward Aqua/Version 4 from July 2002 onward (reprocessing complete by early July 2004) Terra/Version 3 “golden month” (Sep 2002) to be retained for comparisons between versions - MODxxxx = Terra products; MYDxxxx = Aqua products - Most recent changes PoDAG XXII Marilyn Kaminski, MODIS Product Team Lead June 3, 2004

Marilyn Kaminski, MODIS Product Team Lead June 3, 2004 Available MODIS tools Data Access EDG (complete archive) Data Pool (most-recent granules only) SNOWI (complete archive) Subscription (current ingest only) Browse Integrated into EDG and Data Pool Standalone web-based images Data Manipulation HSA (spatial subset, parameter subset) HEG (reformat, reproject, spatial subset) MS2GT (swath-to-grid conversion) … plus many others PoDAG XXII Marilyn Kaminski, MODIS Product Team Lead June 3, 2004

Marilyn Kaminski, MODIS Product Team Lead June 3, 2004 Available MODIS Tools Product Browse HSA HEG MS2GT MOD10_L2 Integrated Yes MYD10_L2 MOD10A1 MYD10A1 MOD10A2 MYD10A2 MOD10C1 Web-based MYD10C1 MOD10C2 MYD10C2 MOD29 MYD29 MOD29P1D MYD29P1D MOD29P1N MYD29P1N MOD29E1D MYD29E1D Integrated Browse available for granules ordered through EDG or Data Pool; Version 4 will be backfilled with “historical browse” HSA available for granules ordered only through EDG HEG available for granules ordered only through Data Pool; will be available for most other products June 2004 PoDAG XXII Marilyn Kaminski, MODIS Product Team Lead June 3, 2004

MODIS Distribution (up to June 2003) (presented at last PoDAG) PoDAG XXII Marilyn Kaminski, MODIS Product Team Lead June 3, 2004

MODIS Distribution (Current) FY03 (Oct 02 – Sep 03) FY04 to date (Oct 03 – May 04) Terra # granules # GB 186132 3274 64150 1428 Aqua 579 20 1429 114 (source: EDGRS, distribution to users) Growth in Aqua distribution is expected V3 had only 2 products released V4 all products released as of 2/13/04 Apparent decrease in Terra distribution is under investigation - Number of users has increased significantly May be “pilot error” … not compiling statistics from all distribution options (archive, data pool, subscriptions)? MODIS has minimal data pool distribution but significant subscription distribution NSIDC internal statistics show same trend although different totals PoDAG XXII Marilyn Kaminski, MODIS Product Team Lead June 3, 2004

NSIDC Near-Term Enhancements Version 5 reprocessing to start ~Apr 2005 – Terra and Aqua Snow in Polar Grid Monthly Products Fractional Snow Cover (500 m) HDF Compression PoDAG XXII Marilyn Kaminski, MODIS Product Team Lead June 3, 2004

Marilyn Kaminski, MODIS Product Team Lead June 3, 2004 Summary MODIS products and tools have improved significantly Increased availability of integrated tools will enhance users’ ability to easily locate and retrieve data in areas of interest PoDAG XXII Marilyn Kaminski, MODIS Product Team Lead June 3, 2004