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Updates on the NASA Team 2 sea ice concentration and snow depth algorithms

Updates on the NASA Team 2 sea ice concentration and snow depth algorithms Thorsten Marks, Don Cavalieri , Al Ivanoff , Ludovic Brucker NASA Goddard Space Flight Center. 1 of 67.

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Updates on the NASA Team 2 sea ice concentration and snow depth algorithms

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  1. Updates on the NASA Team 2 sea ice concentration and snow depth algorithms Thorsten Marks, Don Cavalieri, Al Ivanoff, LudovicBrucker NASA Goddard Space Flight Center 1 of 67

  2. The NASA Team 2 approach finds the best solution from a set of pre-calculated sea ice concentration – atmosphere conditions

  3. Sea ice concentration Uncertainty Error because of averaging = 0 % = 1 - 2 % >= 3 %

  4. Orbits per day

  5. Monthly distributions of uncertainty versus sea ice concentration

  6. Atmosphere index over uncertainty

  7. Snow depth on sea ice With Operation IceBridge we, for the first time, have extensive validation data The IceBridge plane has an FMCW radar that directly measures the snow depth on sea ice

  8. Arctic 2009 MY ice ocean 200 AMSR-E pixels that have OIB data

  9. 2009 2010 2011

  10. 2009 2010 2011

  11. X =SDOIB - SDL3

  12. Classes per geophysicalproperties X =SDOIB - SDL3

  13. ICEX 2011-03-23 AMSR-E (SD) 12.5-km pixel 16 16 18 17 18 20 16 16 20 17 18

  14. Repetability of the SD retrievals& Spatial variations (East passes) 0.18 m

  15. SD vs. SD w/ a 1 K TB noise 1 K →5 cm

  16. Difference between IceBridge and AMSR-E snow depth (2009-2011)

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