Expressing our need for data continuity to the European... Dear SMOS data user, The European Commission is responsible for establishing the future evolution for the Copernicus Space Component. To support and feed into this process the Commission is currently gathering the user requirements for the next-generation Copernicus Space Component via an online survey, run by the contractor that the EC appointed to handle this process....

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Research Engineer ‘Sea Surface Salinity retrieval... A research engineer position is opened at the Laboratoire d’Océanographie et du Climat – Expérimentation et Approches Numériques (LOCEAN)/ Institut Pierre Simon Laplace (IPSL), PARIS, starting as soon as possible. The position is for one year, likely renewable for 2 years. Context : The SMOS (Soil Moisture and Ocean Salinity) mission is the first satellite...

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2015 EL Nino as seen by SMOS Detecting the SSS 2015 El Nino signature with SMOS Thierry Delcroix (LEGOS) and Jacqueline Boutin (LOCEAN) El Nino Southern Oscillation is the strongest climate signal of the planet at the interannual time scale. It is characterized by strong oceanic and atmospheric anomalies in the tropical Pacific, and induces many environmental disturbances across the globe....

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Happy New Year!! The SMOS team wishes you all a very Happy, Healthy and Peaceful Year 2016! Let it be full of good L band radiometer data as well !! We are also pleased to announce that the reprocessing of the 6 years of SMOS data is quasi completed and is currently being checked. So more about the official release very soon together with new results! All the best from the SMOS...

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Happy Birthday SMOS! 6 years ago SMOS was launched into space and started taking data on November 17.... and has been taking data since!

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Expressing our need for data continuity to the European Commision

Category : Non classé

Dear SMOS data user,

The European Commission is responsible for establishing the future evolution for the Copernicus Space Component. To support and feed into this process the Commission is currently gathering the user requirements for the next-generation Copernicus Space Component via an online survey, run by the contractor that the EC appointed to handle this process. The online questionnaire has the aim of establishing a list of users interested in taking part in this exercise.

The SMOS science community has frequently voiced their interest in continuing L-band observations beyond the current SMOS operations. This survey provides the opportunity to voice your opinion with the EC, who could provide a potential implementation route.

The link to the Copernicus “Call for Interest” survey for the User Requirements Gathering for the Next Generation Copernicus Space Component is on http://www.copernicus.eu/copernicus-call-for-interest

This call for interest survey and the gathering of user needs will be the first building block of a process aimed at defining the high level requirements for the next generation of the Copernicus Space Component. It is thus a unique opportunity to contribute to the creation of a “fil rouge” between this Space Component and the users.

Kind regards

Susanne Mecklenburg

Research Engineer ‘Sea Surface Salinity retrieval from SMOS satellite measurements’

Category : L2, position opening

A research engineer position is opened at the Laboratoire d’Océanographie et du Climat – Expérimentation et Approches Numériques (LOCEAN)/ Institut Pierre Simon Laplace (IPSL), PARIS, starting as soon as possible. The position is for one year, likely renewable for 2 years.

Context :

The SMOS (Soil Moisture and Ocean Salinity) mission is the first satellite mission carrying an L-band radiometer interferometer. Since its launch, end of 2009, it acquired over 5 years of data that demonstrate the feasibility of the sea surface salinity measurement by L-band radiometry, the capability of the interferometry technique, and it opens new research topics. The LOCEAN team has been involved since 1999 in the definition of direct and inverse models applicable to SMOS. It is one of the ESA Expert Support Laboratory in charge of the definition of the algorithms used for retrieving salinity from SMOS brightness temperatures in the ESA operational chain. The selected candidate will be in charge of the improvement of existing algorithms, dealing in particular with data selection, configuration of the baysian retrieval, radiative transfer model, in close collaboration with researchers and engineers of the laboratory.

The selected candidate will join the LOCEAN IPSO (Interactions et Processus au sein de la couche de Surface Océanique) team involved in the physics of the L-band radiometry, in the satellite salinity validation and in understanding  the processes responsible for the differences observed between satellite and in situ measurements, in particular those linked  to air-sea interaction, vertical stratification and small-scale variability (www.locean-ipsl.upmc.fr/smos/ and siss.locean-ipsl.upmc.fr).

Work details :

- Developpement of new algorithms for improving the retrieval of the salinity from SMOS mission ; collaboration with the industrial for their implementation in the processor chain

- Relationship with other ESA expert support laboratory and with the company in charge of the evolutions and the maintenance of the processor: participation to weekly teleconference of the SMOS ESA level 2 ocean team and attending the progress meetings (3 per year). Writing of technical papers and participation to scientific papers is possible, depending on the algorithms improvements.

Required Skills:
-          Physics of satellite measurement
-          Data processing and statistics
-          Knowledge of LINUX and C
-          Matlab and/or Python
-          Autonomy and team collaborative working

Welcome Skills:
-          Optimization for huge data processing
-          Interest for environmental science

Level: Research Engineer (PhD thesis or equivalent)

Address : LOCEAN, Université Pierre et Marie Curie, Tour 45-55, 5E, 4, place Jussieu, 75005 PARIS, FRANCE.

Salary : about € 1900 net, commensurable with qualification and experience of the candidate (CNRS salary grid)

Candidates should send a statement of interest, CV and coordinates of 2 referees to  Jacqueline Boutin (jb@locean-ipsl.upmc.fr) and Nicolas Martin (martin@locean-ipsl.upmc.fr).

2015 EL Nino as seen by SMOS

Category : Non classé

Detecting the SSS 2015 El Nino signature with SMOS

Thierry Delcroix (LEGOS) and Jacqueline Boutin (LOCEAN)

El Nino Southern Oscillation is the strongest climate signal of the planet at the interannual time scale. It is characterized by strong oceanic and atmospheric anomalies in the tropical Pacific, and induces many environmental disturbances across the globe. A major event began in early 2015. The ongoing related changes suggest that it is probably the strongest El Nino recorded since 1997-98, the four intermediate events being much lower.

The current event is remarkable in terms of sea surface salinity (SSS) anomalies, as deducted from SMOS measurements. There is a very sharp drop of the order of - 1 pss in SSS in the western-central equatorial Pacific Ocean (large blue pattern in Figure 1), in accord with sporadic in situ measurements. Qualitative analysis suggests these huge anomalies result from a reversal of the ocean surface current during El Nino. The resulting anomalous eastward current transports the warm and low salinity waters of the so-called western Pacific warm pool to the East, while moving heavy precipitation located above these warm waters. Both horizontal advection and precipitation would then be responsible for the observed SSS anomalies. A quantitative analysis will help us better understand the exact role of the various mechanisms responsible for the strong anomalies observed by SMOS.

el nino 2015

Figure 1. Sea surface salinity anomalies deducted from SMOS measurements in December 2015. The anomalies are related to one month’s average December.


Happy New Year!!

Category : CATDS, Data, L2, Non classé, Satellite

The SMOS team wishes you all a very Happy, Healthy and Peaceful Year 2016!

Let it be full of good L band radiometer data as well !!

We are also pleased to announce that the reprocessing of the 6 years of SMOS data is quasi completed and is currently being checked. So more about the official release very soon together with new results!

All the best from the SMOS team