New SSS Thematic Research Products available from CATDS/Ifremer... Figure illustrating the content of the new CATDS/CEC IFREMER Level 4a weekly 1/2° products 4 types of new level 4 "research" products were developed by the CATDS/IFREMER expertise center for salinity (CATDS/CEC-OS ...

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New level 3 SMOS SSS corrected from systematic biases... Jacqueline Boutin from LOCEAN informs you that a New level 3 SMOS SSS corrected from systematic biases is now available from CATDS/LOCEAN expertise center Considering that the land contamination leads to systematic biases on retrieved SMOS sea surface salinity, LOCEAN and ACRI-st have developped a method for correcting systematic biases, mostly based...

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SMOS 3rd training course is in full swing The SMOS training course (3rd edition) is currently taking place at the ESA centre of Villafranca (ESAC) in Spain. 18 students from 14 countries together with 4 spectators are currently being "initiated" to the SMOS data in the very nice facilities of ESAC Ali presenting image reconstruction (picture by Beatriz) The course is the third one and takes advantage of the...

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The new SMOS data is now being produced! Dear Colleagues After many improvements with respect to v550, and many verifications, I am very glad to announce that the SMOS version V620 is now in operation! At ESA the whole level 1 V620 is available: SMOS level 1 algorithm baseline V620 reprocessed dataset now available: https://earth.esa.int/web/guest/missions/esa-operational-eo-missions/smos/news/-/article/smos-level-1-algorithm-baseline-v620-reprocessed-dataset-now-available Successful...

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News from ESA on the New SMOS data (V620) news from ESA's Webpage SMOS deployment plan for the new level 1 and level 2 algorithm baseline V620 28 April 2015 ESA would like to inform SMOS data users that next week a new level 1 and level 2  algorithm baseline  (V620) will be deployed in the operational ground segment. For this reason the production of the SMOS level 1, level 2 products will be...

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New SSS Thematic Research Products available from CATDS/Ifremer Expertise Center

Category : CATDS, L4, Ocean

Produits_L4a1Produits_L4a2Produits_L4a3

Figure illustrating the content of the new CATDS/CEC IFREMER Level 4a weekly 1/2° products

4 types of new level 4 « research » products were developed by the CATDS/IFREMER expertise center for salinity (CATDS/CEC-OS SMOS Level 4) and are now accessible for download.

These new Level 4 research products are weekly (7 days) composite at 50 km resolution. The products coverage is May 2010-December 2014.

Level 4a include weekly SMOS SSS biased-corrected at large scale (10°x10°) using monthly in situ OI (ISAS) fields.In addition, these L4a products also include an ensemble of geophysical parameters derived from well-acknowledged products in the scientific communities that are useful for synergistic science applications using SMOS data. These include Sea Surface Temperature (ECMWF), surface currents (OSCAR), rain (TRMM & CMORPH), evaporation (OAFLUX), surface wind stresses (ASCAT), mixed-layer depth from In situ OI(APDRC), Surface salinity from in situ OI (ISAS) and salinity at the base of the mixed-layer depth estimated also from In Situ OI.

-Level 4 a synergistic products:

These products include key geophysical variables to analyse the salinity budget in the upper ocean mixed layer. These include:

-SSS from SMOS & in situ OI (ISAS),

-SST from ECMWF,

-wind speed modulus (ECMWF)

-wind stress components (ASCAT),

-ocean surface current components (OSCAR),

-Evaporation (OAFLUX),

-Precipitation (TRMM3B42 & CMORPH),

-Mixed Layer Depth (In situ OI),

-Salinity at the base of the mixed-layer

These fields are averaged or cummulated in time -or interpolated- over the week of the SMOS L4a SSS and gridded at the same 1/2° spatial resolution.


In addition we include the following thematic datasets:

L4aSSS In situ Match-up products

Quality controlled surface salinity and temperature measurements from Argo floats, ship TSG, surface drifters, Tropical Moorings and sea seals data provided by the Coriolis, GOSUD, SAMOS and LOCEAN  data centers are collected weekly over each of the L4 composite product period and co-locatized with SMOS L4a SSS products.

Supplementary data are provided with the in situ match-up database such as vertical profiles of S and T if available, co-localized ASCAT and TRMM3B42 data, etc..

A match-up database file per in situ sensor type is provided for each week of the L4a products.

L4b density products

L4b density products are satellite surface density fields. These surface density fields are so-called   »CATDS/CECOS Ifremer SMOS Level 4c research products » and are weekly composite products of surface density at a spatial resolution of 0.50° x 0.50° deduced from the L4aSSS data and ECMWF SST data. In addition,  the products include:

-mean sea level anomalies from AVISO

-OSCAR currents components

-Wind stress components from ASCAT

L4c anomaly products

L4c products are Anomaly fields. These surface salinity anomaly fields are so-called   »CECI-OS Ifremer SMOS Level 4c SSSA research products » and are weekly composite products at a spatial resolution of 0.50° x 0.50° deduced from the L4aSSS data. The anomalies are evaluated by removing an annual-averaged reference weekly composite field evaluated by averaging the SMOS L4aSSS data over 5 years (2010 to 2014).

weekly anomalies for various thematic fields are also included such as:

-ECMWF sst anomalies

-Cummulated Evaporation anomalies from OAFlux

-Cummulated Precipitaions anomalies from TRMM3B42

-Cummulated Precipitation anomalies from CMORPH

-Mixed layer depth anomalies from APDRC

-Wind stress components anomalies from ASCAT

-Anomalies of the Salinity at the base of the Mixed Layer

-OSCAR currents components anoamlies

-ISAS temporally interpolated monthly SSS & SST fields anomalies

-surface density anaomalies

-MSLA

Data Access:

The data and associated documentation can be accessed through the catds ftp portal at:
ftp eftp.ifremer.fr
user : s1ee7c
password : salinity
cd salinity
prepared by Nicolas REUL

New level 3 SMOS SSS corrected from systematic biases available from CATDS (LOCEAN)

Category : CATDS, L3, Ocean

Jacqueline Boutin from LOCEAN informs you that a

New level 3 SMOS SSS corrected from systematic biases is now available from CATDS/LOCEAN expertise center

Considering that the land contamination leads to systematic biases on retrieved SMOS sea surface salinity, LOCEAN and ACRI-st have developped a method for correcting systematic biases, mostly based on the self consistency of SSS retrieved on various dwell lines. First evaluations of these ‘debiased L3 products’ using ships data show large improvements with respect to previous CEC LOCEAN L3 products.

You can see more on http://www.catds.fr/News/New-level-3-SMOS-SSS-corrected-from-systematic-biases-are-available-from-CATDS-LOCEAN-expertise-center

The new products are available on the CATDS:
ftp eftp.ifremer.fr ; user : c1f135 ; pwd : rXCTqfc0
cd salinity
or ftp://c1f135:rXCTqfc0@eftp.ifremer.fr/salinity/
(or ftp://c1f135:rXCTqfc0@eftp.ifremer.fr/user27285/salinity/
with some web browser)

Enjoy


SMOS 3rd training course is in full swing

Category : Training

The SMOS training course (3rd edition) is currently taking place at the ESA centre of Villafranca (ESAC) in Spain.
18 students from 14 countries together with 4 spectators are currently being « initiated » to the SMOS data in the very nice facilities of ESAC

IMG_2436

Ali presenting image reconstruction (picture by Beatriz)

The course is the third one and takes advantage of the release of the new version (V620) of the SMOS Data while covering both land and ocean science applications (see twitter account)

Next week, the Second post launch SMOS workshop will take place, also at ESAC. Stay tuned!

The new SMOS data is now being produced!

Category : Non classé

Dear Colleagues

After many improvements with respect to v550, and many verifications, I am very glad to announce that the SMOS version V620 is now in operation!

At ESA the whole level 1 V620 is available:

SMOS level 1 algorithm baseline V620 reprocessed dataset now available: https://earth.esa.int/web/guest/missions/esa-operational-eo-missions/smos/news/-/article/smos-level-1-algorithm-baseline-v620-reprocessed-dataset-now-available
Successful deployment of the new SMOS level 1 algorithm baseline V620 in the operational processing: https://earth.esa.int/web/guest/missions/esa-operational-eo-missions/smos/news/-/article/successful-deployment-of-the-new-smos-level-1-and-level-2-algorithm-baseline-v620-in-the-operational-processing

For level 2 the V620 algorithm was sucessfully deployed as well (see link above) but the reprocessing of data from 2010 to now is starting at the moment and should be available in total this fall

Similarly, for level 3 CATDS the new processor (equivalent to V620) is running operationally ingesting the new L1 data and the reprocessing of soil moisture is done in parallel and should be available this summer! Salinity reprocessing will also be initiated