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Www.argans.co.uk SMOS L2 Ocean Salinity Level 2 Ocean Salinity Processor TDS review 26 January 2009 Samantha Lavender Paul Spurgeon Caesar Mugerin.

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Presentation on theme: "Www.argans.co.uk SMOS L2 Ocean Salinity Level 2 Ocean Salinity Processor TDS review 26 January 2009 Samantha Lavender Paul Spurgeon Caesar Mugerin."— Presentation transcript:

1 SMOS L2 Ocean Salinity Level 2 Ocean Salinity Processor TDS review 26 January 2009 Samantha Lavender Paul Spurgeon Caesar Mugerin

2 SMOS L2 Ocean Salinity Scenario 20 (dual pol) V2, SSS1 (24-45 psu)

3 SMOS L2 Ocean Salinity Scenario 20 (dual pol) V3, SSS1 (22-50 psu)

4 SMOS L2 Ocean Salinity Scenario 20 (dual pol) V2, SSS1, -41 to -40 longitude

5 SMOS L2 Ocean Salinity Scenario 20 (dual pol) V3, SSS1, -41 to -40 longitude

6 SMOS L2 Ocean Salinity Scenario 20 (dual pol) V2, SSS1 sigma, -41 to -40 longitude

7 SMOS L2 Ocean Salinity Scenario 20 (dual pol) V3, SSS1 sigma, -41 to -40 longitude

8 SMOS L2 Ocean Salinity Scenario 09 (full pol) V2, SSS1 (28-40 psu)

9 SMOS L2 Ocean Salinity Scenario 09 (full pol) V3, SSS1 (31-42 psu)

10 SMOS L2 Ocean Salinity Indra TDS (dual pol) V2, SSS1 (29-40 psu)

11 SMOS L2 Ocean Salinity Indra TDS (dual pol) V3, SSS1 (29-40 psu)

12 SMOS L2 Ocean Salinity Indra TDS (dual pol)

13 SMOS L2 Ocean Salinity Indra TDS (dual pol)

14 SMOS L2 Ocean Salinity Indra TDS (full pol) V2, SSS1 (30-39 psu)

15 SMOS L2 Ocean Salinity Indra TDS (full pol) V3, SSS1 (29-39 psu)

16 SMOS L2 Ocean Salinity Scenario 20 SPH quality info Total L1c grid points Rejected: – 0 on land – 9410 too close to land – too few measurements – 0 missing ECMWF data – 0 suspect ice good quality grid points 7465 poor quality grid points

17 SMOS L2 Ocean Salinity 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 SMOS L2 Ocean Salinity 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 SMOS L2 Ocean Salinity 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 SMOS L2 Ocean Salinity 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 SMOS L2 Ocean Salinity 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 out-of-LUT

22 SMOS L2 Ocean Salinity 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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