Joe Tenerelli SMOS L2OS Progress Meeting Arles, France, September 26, 2011

1. UPDATE ON SMOS LONG-TERM BIASES OVER THE OCEAN AND ROUGH SURFACE SCATTERING OF CELESTIAL SKY NOISE Joe Tenerelli SMOS L2OS Progress Meeting Arles, France, September 26, 2011

2. SMOS PASSES USED IN THIS ANALYSIS

3. DRIFT IN 2010 ONLY

4. NO LOSS MODEL

5. ONE-SLOPE LOSS MODEL

6. TWO-SLOPE LOSS MODEL

7. EXTENSION THROUGH JUNE 2011

8. NO LOSS MODEL

9. ONE-SLOPE LOSS MODEL Notice the significantdesc-ascbiasnowappearingwithboth one and twoslopelossmodelsbetweenNov 2010 and April 2011. It is of opposite sign to thatbetween Sep and Dec 2010 observedwith no loss model. It appearsthat the loss correction istoostrong in thisperiod.

10. TWO-SLOPE LOSS MODEL The two-slope model seems to degradedesc-ascbias relative to the one-slope model.

11. ONE-SLOPE LOSS MODEL: IMPACT OF GALACTIC REFLECTION MODEL It turns out that, for the metricsusedhere, the impact of the formulation of galactic noise scatteringat the surface on desc-ascbiasisquitesmalleven for descending passes in September. Kirchhoff scatteringmodel for galactic noise

12. ONE-SLOPE LOSS MODEL: IMPACT OF GALACTIC REFLECTION MODEL It turns out that, for the metricsusedhere, the impact of the formulation of galactic noise scatteringat the surface on desc-ascbiasisquitesmalleven for descending passes in September. Flat surface reflection model for galactic noise

13. DRIFT METRICS

14. LONG TERM DRIFT JAN-DEC 2010

15. LONG TERM DRIFT JUN-DEC 2010

16. LONG TERM DRIFT JUNE 2010 – JUNE 2011 Considering the June 2010 to June 2011 period, thereisverylittle net drift in the AF and EAF FoVs In the ascending passes.

17. SHORT TERM DRIFT IN 2010 AND 2011 The two-slope model seems to degradedesc-ascbias relative to the one-slope model. Two-slopedegradesdesc-ascconsistency

18. LATEST OPERATIONAL BIAS CURVES

19. The following are biascurves for operational DPGS Level 1B data:

20. The following are biascurves for operational DPGS Level 1A data and using JRECON with no direct sun correction:

21. Comparing Original DPGS with L1PP

22. NO LOSS MODEL

23. LATEST OPERATIONAL BIAS CURVES

24. UPDATE ON GALACTIC NOISE MODEL

25. UPDATE ON GALACTIC NOISE MODEL

26. UPDATE ON GALACTIC NOISE MODEL

27. UPDATE ON GALACTIC NOISE MODEL

28. UPDATE ON GALACTIC NOISE MODEL

29. CELESTIAL SKY NOISE MAPS

30. HOVMOLLER PLOTS OF REFLECTED SKY NOISE

31. SMOS RESIDUALS BASED ON COMMISSIONING REPROCESSING DATA

32. SMOS RESIDUALS BASED ON COMMISSIONING REPROCESSING DATA

33. FITTING A GEOMETRIC OPTICS MODEL TO THE RESIDUALS

34. FITTING A GEOMETRIC OPTICS MODEL TO THE RESIDUALS

35. FITTING A GEOMETRIC OPTICS MODEL TO THE RESIDUALS

36. FITTING A GEOMETRIC OPTICS MODEL TO THE RESIDUALS

37. FITTING A GEOMETRIC OPTICS MODEL TO THE RESIDUALS

38. CROSS SECTIONS THROUGH THE CELESTIAL SKY MAPS

39. CROSS SECTIONS THROUGH THE CELESTIAL SKY MAPS

40. CROSS SECTIONS THROUGH THE CELESTIAL SKY MAPS

41. CROSS SECTIONS THROUGH THE CELESTIAL SKY MAPS

42. CROSS SECTIONS THROUGH THE CELESTIAL SKY MAPS NEW SEMI-EMPIRICAL MODEL

43. CROSS SECTIONS THROUGH THE CELESTIAL SKY MAPS ORIGINAL KIRCHHOFF MODEL

44. CROSS SECTIONS THROUGH THE CELESTIAL SKY MAPS NEW SEMI-EMPIRICAL MODEL: Ascending Passes

45. CROSS SECTIONS THROUGH THE CELESTIAL SKY MAPS NEW SEMI-EMPIRICAL MODEL: Descending passes

46. IMPACT ON CELESTIAL SKY BIASES

47. BIAS: ORIGINAL KIRCHHOFF MODEL

48. BIAS: KIRCHHOFF MODEL EVALUATED AT 3 M/S WIND SPEED

49. BIAS: EMPIRICAL GEOMETRIC OPTIC

50. NEW SEMI-EMPIRICAL GO MODEL SWATH RESULTS