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OS objectives for 2 nd mission reprocessing. The SMOS L2 OS Team. OS 2 nd reprocessing objectives. New galactic model formulation Roughness models fitted to reprocessed data and validated Stokes 3: optimisation of TEC retrieval, RFI
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OS objectives for 2nd mission reprocessing The SMOS L2 OS Team
OS 2nd reprocessing objectives • New galactic model formulation • Roughness models fitted to reprocessed data and validated • Stokes 3: optimisation of TEC retrieval, RFI • Flags need improvement (better thresholds, simplification?) • Hopefully reformulated OTT strategy:
1st reprocessing L2-OS performance summary The SMOS L2 OS Team
OS 1st reprocessing performance • L2OS reprocessing not yet started
Product performance improvement, investigation avenues and planned methodology The SMOS L2 OS Team
OS reprocessing analysis plan • Reprocessed L2OS will be analysed following (or adapting) the SMOS L2 OS Product Performance Evaluation Plan (SO-PL-ARG-GS-0055 L2OS-PPEP_v4.1_110907): • Priority 1 • Range of retrieved SSS and deviation from climatology data • Regional variations • Land contamination • RFI detection & mitigation • Absolute accuracy of retrieved results; comparison with external sources • Quality fields and flags • Time stability of the results • Sun/moon glint and Galactic Noise • Tuning roughness models 1/2/3 • Issue new Product Performance Status Report
Investigation for 2nd reprocessing • New galactic model formulation • Don’t know possible impact on algorithm, then processor delivery • Roughness models fitted to reprocessed data and validated • Stokes 3: optimisation of TEC retrieval, RFI • Don’t know possible impact on algorithm, then processor delivery • Flags need improvement (better thresholds, simplification?) • Hopefully reformulated OTT strategy: • Full understanding of reprocessing OTTs • Examining impact in SSS time series • Review OTT update strategy in view of L1 improvements • Status of multiplicative, model-free OTT investigation
Investigation for 2nd reprocessing • And on top of this: Expecting to see significant L1 improvements Checked efficiency of different land/sea LO calibration rate
Performance status v550 The SMOS L2 OS Team
New SMOS OS L3 maps New • Optimally interpolated salinity maps generated at BEC from DPGS operational L2 products • 10 days, 1ox1o, updated every 3 days http://www.smos-bec.icm.csic.es/
Temporal drift in SSS L3 maps BEC OI SSS – SSS_clima. 16 -25 Nov 2011 25 Nov- 4 Des 1o / 10 days 15 des: L2PP 5.50 in DPGS OTT asc & OTT des 1-9 Des 16 -25 Des 31 Des - 9 Jan 22-31 Des Same behaviour with binned (not OI) -1 1
Drifts not geophysical BEC product OI 1° x 1° Ave 10 days Freq 3d Averaging SMOS_OI - ARGO maps L2PP550 L1PP500 L2PP500 L2PP550 L1PP500 L2PP500 2011 2011
The circular window story HW-CW TB with MTS, AF-FOV only, 0-40 incidence, 1-15 Dec 2010
The circular window story HW-CW TB with L1PP, EAF-FOV only, all angles, June 2010