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Roughness model deltas v550 OTTs made from REPR v504 L1c

Roughness model deltas v550 OTTs made from REPR v504 L1c. 30 January 2012. ARGANS. v550 OTTs made from REPR v504 L1c. OTT1-OTT2: -0.56 K OTT1-OTT3 +0.33 K. v550 OTTs made from REPR v504 L1c. OTT1-OTT2: -0.57 K OTT1-OTT3 +0.30 K. v550 OTTs made from REPR v504 L1c.

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Roughness model deltas v550 OTTs made from REPR v504 L1c

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  1. Roughness model deltas v550 OTTs made from REPR v504 L1c 30 January 2012 ARGANS

  2. v550 OTTs made from REPR v504 L1c OTT1-OTT2: -0.56 K OTT1-OTT3 +0.33 K

  3. v550 OTTs made from REPR v504 L1c OTT1-OTT2: -0.57 K OTT1-OTT3 +0.30 K

  4. v550 OTTs made from REPR v504 L1c OTT1-OTT2: -0.22 K OTT1-OTT3 +0.18 K

  5. v550 OTTs made from REPR v504 L1c OTT1-OTT2: -0.22 K OTT1-OTT3 +0.19 K

  6. v550 OTTs made from REPR v504 L1c OTT1-OTT2: -0.45 K OTT1-OTT3 +0.23 K

  7. v550 OTTs made from REPR v504 L1c OTT1-OTT2: -0.45 K OTT1-OTT3 +0.22 K

  8. v550 OTTs made from REPR v504 L1c OTT1-OTT2: -0.44 K OTT1-OTT3 +0.23 K

  9. v550 OTTs made from REPR v504 L1c OTT1-OTT2: -0.43 K OTT1-OTT3 +0.20 K

  10. Conclusions: • Very small differences between ascending & descending OTT1/2/3 deltas • Models are biased, especially in HH & in AFFOV: • OTT1-OTT2: -0.56 K OTT1-OTT3 +0.33 K OTT2-OTT3 +0.89 K • Maybe deltas in Stokes 3 & 4 too – not tested • Biases are corrected by OTTs • Which model is nearer to ‘ground-truth’?

  11. delta OTT1 – OTT2, descending 20111109 (event 54) Why strong delta at top edge of VV?

  12. delta OTT1 – OTT2, ascending 20111109 (event 54) Why strong delta at top edge of VV?

  13. delta OTT1 – OTT2, ascending 20100704 (event 21) Why strong delta at top edge of VV, independent of sun, ascending/descending, year, etc?

  14. delta OTT3 – OTT2, ascending 20100704 (event 21) Delta at top edge in VV seems to come from model 2?

  15. delta OTT1 – OTT3, ascending 20100704 (event 21) Strong gradient in HH?

  16. delta OTT2 – OTT3, ascending 20100704 (event 21) Strong gradient in HH seems to come from model 3?

  17. delta OTT1 – OTT2, cross-pol, ascending 20100704 (event 21) Strange pattern in Stokes 3?

  18. delta OTT1 – OTT2, cross-pol, ascending 20100704 (event 21) Strange pattern in Stokes 3, hhv & vvh?

  19. delta OTT3 – OTT2, cross-pol, ascending 20100704 (event 21) Strange pattern in Stokes 3, from model 2?

  20. Reprocessed v550 L2OS 20110704T014904, filtered by poor(retrieval or geophysical) Problem in SSS1 at edges in EAFFOV: wind/TEC/???

  21. Reprocessed v550 L2OS 20110704T141932, filtered by poor(retrieval or geophysical) Problem in SSS1 at edges in EAFFOV: wind?

  22. Conclusions: • Does delta OTT1/2/3 indicate any algorithm issues? • Does delta SSS1/2/3 in EAFFOV indicate problem with WS in SSS1? • Why only in EAFFOV? • Also at leading/trailing edges of snapshot inside swath, but hidden? • How can we work towards unification of SSS1/2/3?

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