Working toward high accuracy and consistency of essential climate variables from multiple satellite ocean color missions …a joint CEOS/IOCCG initiative…

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Presentation transcript:

working toward high accuracy and consistency of essential climate variables from multiple satellite ocean color missions …a joint CEOS/IOCCG initiative…

 January 2010 ◦ Proposal for an international SIMBIOS-like activity at IOCCG#15  April 2010 ◦ Meetings at Oceans from Space conference in Venice:  Town Hall meeting on OCR-VC  Dedicated side–session on INSITU-OCR  October 2010 ◦ OCR workshop in conjunction with WGCV-IVOS conference at JRC ◦ INSITU-OCR was introduced to space agency principals in the CEOS plenary in Rio, Brazil  February 2011 ◦ Discussion continued at IOCCG#16  March 2011 ◦ …and at CEOS SIT – Tokyo  November 2011 ◦ Working group formed  February 2012 ◦ Workshop held at Goddard  Today ◦ You get to listen to me… 2

3 Blend IOCCG plans with OCR workshop and WGCV-IVOS workshop recommendations  Review of current “best practices”  Discussion of gap-analysis for INSITU-OCR/CalVal  Cooperate to the next WGCV/IVOS comparisons (OCR) Goal – a community white-paper on requirements for inter- agency initiative on INSITU-OCR  Harmonize existing OCR programs and identify gaps of networking as per schematic  Integrating and rationalizing inter-agency efforts for:  satellite sensor inter-comparisons  uncertainty assessment for remote sensing products  emphasis on requirements for the generation of Ocean Color Radiometry Essential Climate Variables (ECV)  A prioritized effort of the CEOS Ocean Color Radiometry Virtual Constellation (OCR-VC) Core office – good idea?

Agency Representatives ◦ EC/JRC – Giuseppe Zibordi (co-lead) ◦ NASA – Sean Bailey (co-lead) ◦ IOCCG – David Antoine ◦ ESA – Philippe Goryl ◦ CNES –Bertrand Fougnie ◦ NOAA – Menghua Wang ◦ NASA – Bryan Franz ◦ NIST – Carol Johnson ◦ JAXA – Hiroshi Murakami ◦ EUMETSAT – Ewa Kwiatkowska ◦ KORDI – Yu-Hwan Ahn ◦ ISRO – Prakash Chauhan

 Primarily addressed to the Space Agencies contributing to the Ocean Color Radiometer – Virtual Constellation (OCR-VC)  Over 30 recommendations under 4 categories: ◦ space sensor radiometric calibration, characterization and temporal stability ◦ development and assessment of satellite products ◦ in situ data generation and handling ◦ information management and support

 Pre-launch calibration and characterization data ◦ Comprehensive ◦ Open access  Permanent working group on space sensors calibration  Vicarious Calibration  Support for calibration teams  Assess and correct for instrument degradation  Inter-comparisons from pre-launch through operations

 Distribution of un-calibrated data  Common algorithms / open access to source code for processing algorithms  Development of regional bio-optical algorithms  Working group on algorithms topic  Require uncertainties for bio-optical algorithms  Support long term-measurement programs  Develop/maintain validation protocols  Generate Level-3 data products  Consistent set of ancillary data sources  Common aerosol models

 Improving traceability of in situ measurements  Continuous consolidation and update of measurement protocols  Centralized open access data repositories should be established  Uncertainty budgets  Quality Assurance of in situ data  Priority for variables to be collected  General coordination of field campaign

 Accessibility to data / distribution of large data volumes  Accessibility to documentation  Common data format for the storage of the satellite data  Support for open source data processing and visualization  Community processor for in situ data

 First draft went out for comment from the working group participants on March 15, 2012  Comments currently being incorporated  Anticipated delivery by the end of May 2012