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Status and Evolution of SMOS L2 OS Team: Key Updates and Future Improvements

The SMOS L2 OS Team updates on L2OS version 6.00, delivered at the end of 2012 but not yet ingested into DPGS. This version includes significant enhancements over v5.50 such as advanced RFI detection, a new galactic noise model, multi-threading capabilities, and modifications to UDP and DAP contents. Recent analyses are ongoing regarding the impact of skymap errors and RFI detection improvements. Further enhancements are anticipated in future versions, focusing on optimizing retrieval techniques and utilizing new calibration strategies.

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Status and Evolution of SMOS L2 OS Team: Key Updates and Future Improvements

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  1. L2OS v600 status and evolution The SMOS L2 OS Team

  2. L2OS v6.00 • Deliveredend 2012, notyetingested in DPGS • v600 changeswrt v550 presented in detail at QWG-10 • v610 prepared (butnotyetverifiedwith L1 v600) • OTT post-processor • TEC from Stokes 3 • Multi-threading • New UDP and DAP contents • Impact of skymap error stillunderanalysis (not only in L1 butalso in galacticscattering model)

  3. L2OS v600 status • FAT 18/19 December 2012 – redelivery 25/1/2013 with updated schema • Significant changes from v550 • new RFI snapshot level detection, improved RFI outlier detection • new galactic noise model LUTs (ascending/descending) • filters & flags moved from code to configuration ADFs • improved Acard filtering near ice • changes to UDP & DAP formats • removed Fg_ctrl_gal_noise from Fg_ctrl_poor_geophysical • bug fixes to iterative scheme, TB_42.5, galactic noise flagging

  4. Futureimprovements • Tuning v610 modifications • Improving RFI detection • Possiblechange in OTT strategyafteranalysing L1 improvementsimpact (Sun, calibration, new galacticmap, …) • Possiblemodifications in roughnesscorrection (two-stepretrieval, usingpolarimetricinformation, …) • Improved inversion technique • Improved dielectric constant model • Possible use of fusion at L1

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