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OMI Validation Status

OMI Validation Status. Mark Kroon - KNMI (on behalf of the OMI validation team) OMI Science Team Meeting Helsinki, 23 June 2008. JGR Aura Validation Issue. 31 out of 67 papers related to OMI (on both validation and science)! High quality peer review and web published papers!

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OMI Validation Status

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  1. OMI Validation Status Mark Kroon - KNMI (on behalf of the OMI validation team) OMI Science Team Meeting Helsinki, 23 June 2008

  2. Dr. Mark Kroon – KNMI - OSTM13 – Finland Slide 2 JGR Aura Validation Issue 31 out of 67 papers related to OMI (on both validation and science)! High quality peerreview and webpublished papers! 10 papers from OMI AO! Balis, Brinksma, Curier, Ionov, Kramer, Krzyścin, Migliorini, Shavrina, Sneep, Tanskanen.

  3. Dr. Mark Kroon – KNMI - OSTM13 – Finland Slide 3 JGR Aura Validation Issue

  4. Dr. Mark Kroon – KNMI - OSTM13 – Finland Slide 4 Validation Status COL3 Validated and Good for Science Validated and Some Problems Validated butUse with Caution Validation Preliminary Not Publicly Available

  5. Dr. Mark Kroon – KNMI - OSTM13 – Finland Slide 5 Total Ozone Column OMTO3 Image(s) Courtesy : Dr . Dimitris Balis – Aristotle University of Thessaloniki – OMI AO 2925

  6. Dr. Mark Kroon – KNMI - OSTM13 – Finland Slide 6 Total Ozone Column OMDOAO3 Image(s) Courtesy : Dr . Dimitris Balis – Aristotle University of Thessaloniki – OMI AO 2925

  7. Dr. Mark Kroon – KNMI - OSTM13 – Finland Slide 7 Ground Based Validation * No South Pole (lat > 75 S) Data Courtesy : Dr . Dimitris Balis – Aristotle University of Thessaloniki – OMI AO 2925

  8. Dr. Mark Kroon – KNMI - OSTM13 – Finland Slide 8 Total Ozone Column OMI TOMS V8.5 - DOAS v1.0.5 [DU] Total O3 Column Difference for October 2005

  9. Dr. Mark Kroon – KNMI - OSTM13 – Finland Slide 9 OMI – MLS Ozone Profiles Preliminary results forOMI vs MLS ozone profiles Distance < 100 kmSame orbit

  10. Dr. Mark Kroon – KNMI - OSTM13 – Finland Slide 10 OMI – MLS Ozone Profiles Preliminary results for OMI vs MLS ozone profiles Distance < 100 km and Same orbit

  11. Dr. Mark Kroon – KNMI - OSTM13 – Finland Slide 11 OMI – GOMOS Ozone Profiles Image(s) Courtesy : Dr . Johanna Tamminen - FMI

  12. Dr. Mark Kroon – KNMI - OSTM13 – Finland Slide 12 Nitrogen Dioxide Total Column SAOZ (ECS2 vs. COL3) for OMI 2004-2007 Image Courtesy : Dr. Dmitry Ionov – CNRS – OMI AO 2926

  13. Dr. Mark Kroon – KNMI - OSTM13 – Finland Slide 13 Nitrogen Dioxide Tropospheric Column + OMI pixel < 650 km2 + OMI pixel > 650 km2 + SCIAMACHY Image Courtesy : Dr. Jennifer Hains – KNMI

  14. Dr. Mark Kroon – KNMI - OSTM13 – Finland Slide 14 Aerosols Optical Depth Collection 2 Collection 3 Omar Torres: “Collection 3 data shows significant improvement in the accuracy of retrieved AOD relative to collection 2 results. Noise level significantly reduced in monthly averages.” Images Courtesy : Dr. Omar Torres – Hampton

  15. Dr. Mark Kroon – KNMI - OSTM13 – Finland Slide 15 Aerosols Optical Depth 'Q12' OMI data is land only and ‘MODIS cloud fraction screened’ 'Q12' means using monthly mean surface reflectivity data [Quintus Kleipool (KNMI)]. Images Courtesy : Dr. Remco Braak – KNMI

  16. Dr. Mark Kroon – KNMI - OSTM13 – Finland Slide 16 Sulphur Dioxide Total Column Mark K: Would you consider the OMSO2 data product to be of category 1 (validated), 2 (some issues) or 3 (caution)? Nick K: Volcanic SO2 data (TRL 2.5, TRM 7.5 and STL 17 ) retrieved with linear fit algorithm are in category 2! Add 1: Products are accurate for small to moderate volcanic SO2 plumes ( < 50 DU). Main problem is guessing SO2 altitude. Add 2: Current volcanic data will underestimate SO2 for large eruptions (> 100 DU). Add 3: Boundary layer SO2 (PBL) is in category 3, mostly because of high noise (StDev ~1.5DU for optimal conditions) that is comparable or larger than real anthropogenic signals. Images Courtesy : Dr. Nick krotkov – GSFC

  17. Dr. Mark Kroon – KNMI - OSTM13 – Finland Slide 17 Bromine Oxide Images Courtesy : Dr. Thomas Kurosu – Harvard-Smithsonian Center for Astrophysics

  18. Dr. Mark Kroon – KNMI - OSTM13 – Finland Slide 18 Formaldehyde Images Courtesy : Dr. Thomas Kurosu – Harvard-Smithsonian Center for Astrophysics

  19. Dr. Mark Kroon – KNMI - OSTM13 – Finland Slide 19 Chlorine Dioxide Thomas Kurosu - Harvard-Smithsonian Center for Astrophysics “There is a huge difference between those three products between ECS2 and COL3: COL3 versions are much improved over ECS2. In fact, use of ECS2 data is STRONGLY discouraged ...” “The Col 3 versions are much improved in across-track striping (meaning there is less of it), to the point that we currently discourage the use of the "destriped columns" … Images Courtesy : Dr. Thomas Kurosu – Harvard-Smithsonian Center for Astrophysics

  20. Dr. Mark Kroon – KNMI - OSTM13 – Finland Slide 20 Validation @ This Meeting

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