os objectives for 2 nd mission reprocessing

SMOS QWG-7, ESRIN 31 Jan – 1 Feb 2012

OS objectives for 2nd mission reprocessing

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The SMOS L2 OS Team


– 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:

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OS 2nd reprocessing objectives


1st reprocessing L2-OS performance summary

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The SMOS L2 OS Team


– L2OS reprocessing not yet started

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OS 1st reprocessing performance


Product performance improvement, investigation avenues and planned

methodology

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The SMOS L2 OS Team


– 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

6

OS reprocessing analysis plan


– 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

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Investigation for 2nd reprocessing


– And on top of this:

Expecting to see significant L1 improvements

Checked efficiency of different land/sea LO calibration rate

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Investigation for 2nd reprocessing


Performance status v550

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The SMOS L2 OS Team

SMOS QWG-7, ESRIN 31-January – 1 February 2012

New

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http://www.smos-bec.icm.csic.es/

New SMOS OS L3 maps

• Optimally interpolated salinity maps generated at BEC from DPGS operational L2 products

• 10 days, 1ox1o, updated every 3 days


Temporal drift in SSS L3 maps

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16 -25 Nov 2011 25 Nov- 4 Des

1o / 10 days

1-9 Des 16 -25 Des

31 Des - 9 Jan22-31 Des

SSS – SSS_clima.SSS – SSS_clima.

1-1

15 des: L2PP 5.50 in DPGSOTT asc & OTT des

Same behaviour with binned (not OI)Same behaviour with binned (not OI)


Drifts not geophysical

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OI 1° x 1° Ave 10 days Freq 3d

Averaging SMOS_OI - ARGO maps

2011

L2PP550

L1PP500L2PP500

L2PP550

L1PP500L2PP500

2011


Latitudinal average 30 Oct – 18 Jan


EEvolution of SSS L3 maps


The circular window story

HW-CW TB with MTS, AF-FOV only, 0-40 incidence, 1-15 Dec 2010



HW-CW TB with L1PP, EAF-FOV only, all angles, June 2010

os objectives for 2 nd mission reprocessing

Documents