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Oceans Report MODIS Science Team Meeting March 22-24, 2005

Oceans Report MODIS Science Team Meeting March 22-24, 2005. Chuck McClain Ocean Biology Processing Group. Current Status & Progress Since the July 2004 Science Team Meeting. MODIS/Aqua Ocean Color Processing Level-0 to Level-3 processing fully supported in SeaDAS

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Oceans Report MODIS Science Team Meeting March 22-24, 2005

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  1. Oceans ReportMODIS Science Team MeetingMarch 22-24, 2005 Chuck McClain Ocean Biology Processing Group

  2. Current Status & Progress Sincethe July 2004 Science Team Meeting • MODIS/Aqua Ocean Color Processing • Level-0 to Level-3 processing fully supported in SeaDAS • Support for MacIntosh now available • Major differences between SeaWiFS & MODIS/Aqua resolved (seasonalities and longer time trends) • Reprocessing executed recently after several months of algorithm testing & evaluation • OBPG working on reducing striping in Level-1 & Level-2 data (mirror side & detector-to-detector calibration consistency) in collaboration with MCST • Refinements in solar and lunar calibration data analysis • Refinements atmospheric corrections

  3. Current Status & Progress (cont.) • Calibration & Validation • Jim Mueller & Carol Johnson leading a calval working group: error budget & future measurement strategy (e.g., coastal zone) • Workshop held at NIST in November • Product Suite & Algorithm Selections • Algorithm teams established at July meeting • Comprehensive chlorophyll algorithm development data set to be released very soon by OBPG • Draft document describing data set and QC procedure completed & to be submitted for publication • 2-day workshop held in February • Inadequate validation data sets for many products (e.g., inherent optical properties) • Need to solicit additional data from community • Limited data sources, e.g., calcite • Product recommendations to be vetted with community at Ocean Color Research Team meeting in April with subsequent generation of new products by OBPG.

  4. Current Status & Progress (cont.) • Product Suite & Algorithm Selections (cont.) • Chlorophyll: Janet Campbell to host an algorithm selection/data analysis mini-workshop • K(490): Revised algorithm recommended • addresses algorithm problem in clear waters • Primary Productivity: Mike Behrenfeld developing a productivity website & to recommend a baseline algorithm • Calcite: Barney Balch to select from 2 published algorithms once more validation data from recent cruises is processed • POC: Clark algorithm recommended • PAR: Watson Gregg and Robert Frouin to provide sensor specific & multi-sensor based products • IOPs (absorption & scattering products): TBD • Issues of overall data quality raised • SST: Miami group continue extensive field data collecton & refinements in product continue to address both sensor & atmospheric error sources

  5. Current Status & Progress (cont.) • Product Suite & Algorithm Selections (cont.) • Atmospheric correction • Menghua Wang working on using 1260 & 1640 nm bands for turbid water corrections (black ocean assumption) • Miami group demonstrated methodology for incorporating Saharan dust detection & spectral matching atmospheric correction algorithm in standard processing • MODIS/Terra • Several team members expressed desire for Terra ocean data processing • Team members to provide Paula with justifications • HQ to consider pending continued progress on MODIS/Aqua, budgets, and other considerations

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