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Ocean Color Science Team Meeting

Ocean Color Science Team Meeting. November 2011 MOBY 2008 Stray Light SIRCUS Characterizations C. Johnson, NIST; M. Ondrusek, NOAA. Tasks. Analyze 2008 laser characterization data sets taken at NIST for LuTOP , even and odd buoy

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Ocean Color Science Team Meeting

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  1. Ocean Color Science Team Meeting November 2011 MOBY 2008 Stray Light SIRCUS Characterizations C. Johnson, NIST; M. Ondrusek, NOAA

  2. Tasks • Analyze 2008 laser characterization data sets taken at NIST for LuTOP, even and odd buoy • Extend analysis to other fibered inputs; Analyze LuMOS data sets • Investigate other algorithms to validate approach • Evaluate impact of new stray light characterization on 2008 deployments • Validate results using 2008 Es data (B241 - B244) and by including “blue” calibration sources when available calibration cycles • Document and publish results, include estimation of uncertainties

  3. Status – November 2011 – No changes since last update • Stray Light Correction Matrices • LuMOS remains to be completed • Impact on 2008 deployments • Complete; remaining issue with first 10 pixels of MOS205 (odd buoy); “overshoot” • Validation Activities • alternate algorithm studies are complete • consistency of Es and “overlap” for B239 to B242 (2008 deployments) was assessed • NIST blue LED source being revised • Uncertainty estimations, documentation, publication • detailed documentation of processing is up to date • preliminary investigations of uncertainty budget underway

  4. Summary Milestones • Year 1 – Develop a new MOBY stray-light correction matrix based on 2008 SIRCUS characterizations. • Year 2 – Validate the new MOBY stray light correction matrix using colored sources and other methods, estimate and assign uncertainties in the stray light correction for 2008 MOBY deployments, and publish these results

  5. Team • NIST • Steve Brown & Keith Lykke, SIRCUS • Al Parr (consultant) algorithm and uncertainties • Eric Shirley & David Harris, algorithm and interpolation • Bob Saunders & Zhigang Li, measurement support • Carol Johnson, lead • MLML • Mike Feinholz, Mark Yarbrough, Stephanie Flora, MOBY instrument, data analysis, documentation • NOAA • Mike Ondrusek, funding and oversight

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