SMOS L2 Ocean Salinity Level 2 Ocean Salinity PM # May 2011 ARGANS & L2OS CLS

SMOS L2 Ocean Salinity Version 500 schedule – IODD & schema delivered 9 May 2011 for L2 spec & SDV/BEAM SMOS-box – pre-FAT delivery 27 May 2011 – FAT 21 & 22 June 2011 proposed configuration changes (AUX_CNFOSD/F) – Tg_max_rainfall = 0.01 m/s (was 0.002) – Tg_SSS_max = 42 psu (was 40), Tg_SSS_min = 0 psu (was 30) – Tg_TEC_gradient TBD (317/DPGS = 5 tecu, previously 10 tecu) see later slides TBD – Refine model 2 LUT: omega (inverse wave age) & phi_wsn not retrieved – Refine model 3 LUT: phi_wsn & HS not retrieved – Correct under estimated Galactic noise model –...? L2OS status

SMOS L2 Ocean Salinity What’s new in v500? – No longer setting Fm_valid to false when Fm_l1c_rfi flag is set – Fm_l1c_rfi = new L1c RFI tails flag (or’d with mitigation, strong, & point RFI flags) – Dg_L2_RFI replaces Dg_eaf_fov in UDP (L1c no longer contains Fm_eaf_fov) OSUDP2 minor schema change (requires SDV/BEAM update) – Removed Fg_ctrl_poor_geophysical from quality tests – Fixed SPH poor (& good) successful retrievals counters see – L2 RFI detection/mitigation: new AUX_CNFOSD/F thresholds & schema RFI_std = 1.2, RFI_nsig = 3, Tg_num_RFI_max = 50% (see RFI presentation) – Other PRs fixed: Outlier detection now calculates median of differences as specified in ATBD Name of the processor in log messages now conforms with the ICD (includes L2OS version) Corrected BULL_B orchestration L2OS status

SMOS L2 Ocean Salinity New/changed flags in v500 – Fml1c_border_fov = 1 if the pixel is close to the border delimiting the Extended Alias free zone or to the unit circle replicas borders (also known as “suspenders and belts”). Distance threshold is configurable through FOV_Border_Flag_Size field in AUX CNFL1P FOV_Border_Flag_Size TBD (SD AI) L2OS:if Fml1c_border_fov then Fm_valid = 0 – Fml1c_sun_point = 1 if pixel is located in a zone (circle around Sun alias position with radius configurable through Sun_Point_Flag_Size field in AUX CNFL1P) where a Sun alias was reconstructed (if Sun removal is active, measurement may be degraded) Sun_Point_Flag_Size: circle with r = (diameter = 0.15) – 04/05/2011 XB/RC L2OS:if Fml1c_sun_point or Fml1c_sun_tails or Fml1c_sun_glint_fov then Fm_l1c_sun= 1 if Fm_l1c_sun then Fm_valid = 0 L1c changes

SMOS L2 Ocean Salinity RFI flags in v500 – Fml1c_rfi_mitigation = 1 if RFI Mitigation has been performed during image reconstruction of this pixel measurement – Fml1c_rfi_strong = 1 if measurement is affected by strong RFI as detected in the L1b processing (max RFI self estimated BT above a defined threshold) – Fml1c_rfi_tails = 1 if measurement is affected by the tails of a point source RFI as identified in the AUX RFI list (tail width is dependant on the RFI expected BT defined in the AUX RFILST) – Fml1c_rfi_point = 1 if measurement is affected by point source RFI as identified in the AUX RFI list (flag is set in a circle around the RFI position, with a radius dependant on the RFI expected BT defined in the AUX RFILST), or it has exceeded the threshold defined in BT_Dual/Full_RFI_Pixel_Flag_Threshold fields in AUX CNFL1P, or is negative for dual pol – L2OS: if Fml1c_rfi_point or Fml1c_rfi_tails or Fml1c_rfi_mitigation or Fml1c_rfi_strong then Fm_l1c_rfi = 1 Dg_RFI_L1 = count(Fm_l1c_rfi) L1c changes

SMOS L2 Ocean Salinity Changing Tg_max_TEC_gradient SM_OPER_MIR_SCSF1C_ T064706_ T074105_346_001_1

SMOS L2 Ocean Salinity Changing Tg_max_TEC_gradient > 5 tecu> 10 tecu> 20 tecu SM_OPER_MIR_OSDAP2_ T064706_ T074105_317_001_1 SM_TEST_MIR_OSDAP2_ T064706_ T074105_317_001_8

SMOS L2 Ocean Salinity Changing Tg_max_TEC_gradient L1c TEC> 5 tecu> 10 tecu SM_OPER_MIR_OSDAP2_ T064706_ T074105_317_001_1 SM_TEST_MIR_OSDAP2_ T064706_ T074105_317_001_8

SMOS L2 Ocean Salinity SM_OPER_MIR_OSDAP2_ T133112_ T142514_317_001_1 SM_OPER_MIR_OSDAP2_ T135323_ T144725_317_001_1 Pacific eddies?

SMOS L2 Ocean Salinity SM_OPER_MIR_OSDAP2_ T010038_ T015440_317_001_1 wind/fronts/wave age/ecmwf... Issues: discontinuities?

SMOS L2 Ocean Salinity SSMI wind speeds from Issues: discontinuities?

SMOS L2 Ocean Salinity Plot of wave age from Jean ECMWF Issues: discontinuities?

SMOS L2 Ocean Salinity SM_OPER_MIR_OSDAP2_ T153328_ T162729_317_001_1 Issues: SSS3 ascending orbit anomalies