SMOS First results after 18 months in Orbit:successes and issues Yann KERR, Philippe Waldteufel, François Cabot, Philippe Richaume, Ali Mahmoodi, Steven.

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Presentation transcript:

SMOS First results after 18 months in Orbit:successes and issues Yann KERR, Philippe Waldteufel, François Cabot, Philippe Richaume, Ali Mahmoodi, Steven Delwart, J.-P. Wiigneron, Susanne Mecklenburg, Nicolas Reul, Jacqueline Boutin IGARSS 2011 Vancouver BC Canada

YHK July 2011 Science Objectives for SMOS : The SMOS Mission Mission specifications Soil Moisture multi-angular dual pol 4 % vol 3 day revisit (Vegetation 7 day) better than 50 km Sea Surface Salinity multi acquisitions dual pol or 1st stokes better than 0.1 psu 10 day to monthly Grid scale (200 km) Le Traon et al Launched November Comm Phase May 2010 Data since January IGARSS '11 Vancouver

Outline A few dates Products over land and sea Some interesting results Droughts Floods Huricanes Level 3 Level 4 Issues Way forward IGARSS '11 Vancouver

A few dates First ideas  1990, First proposal  1991 MIRAS  SMOS  1997 and 1998 Launch  11/2/2009 Good data  12/1/2010 Commissioning phase  5/27/2010 Reprocessing of 2010 and new algo version  Jan 2011 Next reprocessing november 2011 IGARSS '11 Vancouver

Cal Val See Monday’s session Tb level  Dome C  Ocean (ocean sessions as well) Soil moisture Comparison with Other sensors Ocean salinity IGARSS '11 Vancouver

Antarctica around Dome Concordia Dome C only, Hallikainen model (one layer, Tsnow=-54) Tv Domex-2 operative 2009 Th Domex-2 operative 2009 Th Domex-2 Initial 2009 Tv Domex-2 Initial 2009 Tv domex2010 th domex2010 YHK July 2011 Cabot Macelloni

YHK JUly 2011 A. Al Bitar IGARSS '11 Vancouver

SMOS vs. ASCAT (AM) D Leroux IGARSS '11 Vancouver

SMOS vs. ECMWF vs. VUA (AM) D Leroux IGARSS '11 Vancouver

Erreur SMOS: 0.3 psu N. Reul IGARSS '11 Vancouver

Central Africa 2 Ferrazzoli et al. IGARSS '11 Vancouver

African results YHK _IGARSS '11 Vnacouver C. Gruhier IGARSS '11 Vancouver

Level 3 IGARSS '11 Vancouver

Reul & Boutin IGARSS '11 Vancouver

Level 3 SM and Tau IGARSS '11 Vancouver

Level 4 SSS IGARSS '11 Vancouver

Some examples of results IGARSS '11 Vancouver

Ouragan DANIELLE Août OuraganEARL 2-3 Septembre 75 kt 982 mb 100 kt 947 mb 115 kt 942 mb 90 kt 955 mb N. Reul

Hurricane Earl was spotted twice by SMOS while it was decreasing from cat 3 to Cat 1 (Sep 2-3…) SMOS wind retrievals (10m)« Hurricane Resarch Division » estimated winds (10m) N. Reul IGARSS '11 Vancouver

YHK _IGARSS '11 Vancouver March (top)and April 2011 SMOS (left) and ECMWF

Recent Floodings in Australia IGARSS '11 Vancouver

Threats ? IGARSS '11 Vancouver

floods in the Mississippi Basin due to snowmelt Risk map before the event USGS flooding map SMOS soil moisture data AlBitar Leroux IGARSS '11 Vancouver

Floods, risks, action and results A.Al Bitar, E. Wood IGARSS '11 Vancouver

Extended Soil moisture values in products SM v3.09 DPGS OPER - FULLSM v4.0.X –DiF – SM extended – no topo SM>1.0 Non realistic but representat ive of the flooded area DiF effect SM more humide Levees blasted – 03/05/2011 Al Bitar IGARSS '11 Vancouver

L. Kaleschke IGARSS '11 Vancouver

L. Kaleschke IGARSS '11 Vancouver

Issues RFI Data gaps Data quality in some cases Data dissemination Vegetation opacity retrieval Dobson or Mironov? Stokes 3 and 4 Fine calibration/drifts/ correction not totally under control yet IGARSS '11 Vancouver

Issues RFI Data gaps Data quality in some cases Data dissemination Vegetation opacity retrieval Dobson or Mironov? Stokes 3 and 4 Fine calibration/drifts/ correction not totally under control yet IGARSS '11 Vancouver

Issues RFI Data gaps Data quality in some cases Data dissemination Vegetation opacity retrieval Dobson or Mironov? Stokes 3 and 4 Fine calibration/drifts/ correction not totally under control yet IGARSS '11 Vancouver

RFI Impact over Oceans YHK July 2011 IN situ Asc March Desc April Asc April Reul et al IGARSS '11 Vancouver

Richaume et al IGARSS '11 Vancouver

Issue of RFI  Europe YHK July 2011 Richaume et al IGARSS '11 Vancouver

But Progresses are made ! YHK July 2011 Richaume et al IGARSS '11 Vancouver

Quality Results RFI issues – Serious and not well anticipated issue – Agressive actions on unlawfull emitters YHK July 2011 P Richaume IGARSS '11 Vancouver

Black area  SM < means no product for these DGGs in OP mode With Dobson very dry for sandy dominant area With Dosbon very wet area 3 days ascending orbits from 2010/12/01 to 2010/12/04 with rain events

IGARSS '11 Vancouver Only small black dots remain  SM < None, if considering SM < means more DGGs in OP mode With Mironov less dry for sandy area With Mironov very wet area less difference 3 days ascending orbits from 2010/12/01 to 2010/12/04 with rain events

YHK July 2011 Summary SMOS has been running for over one year and a half Works fine with a few hickups Good data and good retrievals in spite of first days of a new system Some issues with – RFI – Calibration (for SSS) – Vegetation Opacity still far from perfect – Land sea issue with level 1 processing – 3 rd and 4 th stokes parameters strange But over RFI free areas excellent results Got to get rid of those RFI!!! Many new fields open New ventures with Aquarius and eventually SMAP See also – Our Blog  h ttp:// IGARSS '11 Vancouver

IGARSS '11 Vancouver