Presentation on theme: "PART 2: A QUICK COMPARISON OF V504 AND V620 GLOBAL MAPS Joe Tenerelli SMOS Calibration Meeting 18 26/05/2014."— Presentation transcript:
PART 2: A QUICK COMPARISON OF V504 AND V620 GLOBAL MAPS Joe Tenerelli SMOS Calibration Meeting 18 26/05/2014
Use only alias-free brightness temperatures, excluding border pixels within 0.044 dir cosine units of border Brightness temperatures and retrieved SSS are projected onto earth dwell lines and averaged as usual. A single May 2011 OTT is applied to both May 2011 and November 2012. Additionally, for each map of (Tx+Ty)/2 bias for the two versions v504 and v620, the median bias is subtracted from the map. For the SSS bias maps and for the v620-v504 difference maps, no median offset is removed.
BIAS IN THIRD STOKES Nov 2012; Descending passes; V504
BIAS IN THIRD STOKES Nov 2012; Descending passes; V620
BIAS IN FOURTH STOKES Nov 2012; Descending passes; V504
BIAS IN FOURTH STOKES Nov 2012; Descending passes; V620
BOTTOM LINE: Land contamination still present in V620. Shadowing seems reduced for third Stokes in V620, but not for fourth Stokes. But the Fourth Stokes does look better over the open ocean in V620 than in V504.
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