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

2. www.argans.co.uk SMOS L2 Ocean Salinity Scenario 20 (dual pol) V2, SSS1 (24-45 psu)

3. www.argans.co.uk SMOS L2 Ocean Salinity Scenario 20 (dual pol) V3, SSS1 (22-50 psu)

4. www.argans.co.uk SMOS L2 Ocean Salinity Scenario 20 (dual pol) V2, SSS1, -41 to -40 longitude

5. www.argans.co.uk SMOS L2 Ocean Salinity Scenario 20 (dual pol) V3, SSS1, -41 to -40 longitude

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

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

8. www.argans.co.uk SMOS L2 Ocean Salinity Scenario 09 (full pol) V2, SSS1 (28-40 psu)

9. www.argans.co.uk SMOS L2 Ocean Salinity Scenario 09 (full pol) V3, SSS1 (31-42 psu)

10. www.argans.co.uk SMOS L2 Ocean Salinity Indra TDS 033609 (dual pol) V2, SSS1 (29-40 psu)

11. www.argans.co.uk SMOS L2 Ocean Salinity Indra TDS 033609 (dual pol) V3, SSS1 (29-40 psu)

12. www.argans.co.uk SMOS L2 Ocean Salinity Indra TDS 033609 (dual pol)

13. www.argans.co.uk SMOS L2 Ocean Salinity Indra TDS 033609 (dual pol)

14. www.argans.co.uk SMOS L2 Ocean Salinity Indra TDS 162853 (full pol) V2, SSS1 (30-39 psu)

15. www.argans.co.uk SMOS L2 Ocean Salinity Indra TDS 162853 (full pol) V3, SSS1 (29-39 psu)

16. www.argans.co.uk SMOS L2 Ocean Salinity 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. www.argans.co.uk 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. www.argans.co.uk 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. www.argans.co.uk 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. www.argans.co.uk 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. www.argans.co.uk 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 16585 out-of-LUT

22. www.argans.co.uk 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