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Comprehensive Review of Ocean Salinity Processor TDS and Quality Analysis

This document provides an extensive review of the Ocean Salinity Processor TDS, highlighting various scenarios from January 26, 2009, conducted by Samantha Lavender, Paul Spurgeon, and Caesar Mugerin. The report details multiple data scenarios using dual and full polarization methodologies, focusing on salinity levels (psu) and quality assessments garnered from a significant number of grid points. Key insights into retrieval analysis reveal the proportion of quality grid points and statistics regarding measurement reliability, contributing to a deeper understanding of ocean salinity dynamics.

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Comprehensive Review of Ocean Salinity Processor TDS and Quality Analysis

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  1. Level 2 Ocean Salinity ProcessorTDS review 26 January 2009 Samantha Lavender Paul Spurgeon Caesar Mugerin

  2. Scenario 20 (dual pol) • V2, SSS1 (24-45 psu)

  3. Scenario 20 (dual pol) • V3, SSS1 (22-50 psu)

  4. Scenario 20 (dual pol) • V2, SSS1, -41 to -40 longitude

  5. Scenario 20 (dual pol) • V3, SSS1, -41 to -40 longitude

  6. Scenario 20 (dual pol) • V2, SSS1 sigma, -41 to -40 longitude

  7. Scenario 20 (dual pol) • V3, SSS1 sigma, -41 to -40 longitude

  8. Scenario 09 (full pol) • V2, SSS1 (28-40 psu)

  9. Scenario 09 (full pol) • V3, SSS1 (31-42 psu)

  10. Indra TDS 033609 (dual pol) • V2, SSS1 (29-40 psu)

  11. Indra TDS 033609 (dual pol) • V3, SSS1 (29-40 psu)

  12. Indra TDS 033609 (dual pol)

  13. Indra TDS 033609 (dual pol)

  14. Indra TDS 162853 (full pol) • V2, SSS1 (30-39 psu)

  15. Indra TDS 162853 (full pol) • V3, SSS1 (29-39 psu)

  16. Scenario 20 SPH quality info • Total L1c grid points 63656 • Rejected: • 0 on land • 9410 too close to land • 14126 too few measurements • 0 missing ECMWF data • 0 suspect ice • 34799 good quality grid points • 7465 poor quality grid points

  17. Scenario 20 SPH quality info • Two-scale scheme retrieval analysis • Sea • 5718/23176 good quality (25%), average sigma 0.73 • Near Coast • 1513/11623 good quality (13%), average sigma 0.74 • Sea Ice • 0

  18. Scenario 20 SPH quality info • SSA scheme retrieval analysis • Sea • 5923/23176 good quality (26%), average sigma 0.49 • Near Coast • 1578/11623 good quality (14%), average sigma 0.52

  19. Scenario 20 SPH quality info • Empirical scheme retrieval analysis • Sea • 5083/23176 good quality (22%), average sigma 0.72 • Near Coast • 1573/11623 good quality (14%), average sigma 0.78

  20. Scenario 20 SPH quality info • Cardioid scheme retrieval analysis • Sea • 23176/23176 good quality (100%), average sigma 0.53 • Near Coast • 11623/11623 good quality (100%), average sigma 0.68

  21. Scenario 20 SPH quality info • Two-scale scheme retrieval failure analysis • Sea (23176 good quality grid points) • 491 outside valid range • 0 sigma too high • 2944 poor fit (chi2 or chi2_P) • 947 marquand failed • 973 reached maximum iterations • 16585 out-of-LUT

  22. SPH quality categories • Sea (Fg_sc_land_sea_coast1/2) • Near Coast (Fg_sc_land_sea_coast1/2) • Sea Ice (Fg_sc_suspect_ice) • Low, normal & high SSS, SST, WS • 3 x 3 x 3 • thresholds? • SSS 32 & 38 psu • SST 278 & 298 K • WS 5 & 25 m/s

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