Special Issue New Outstanding Results over Land from... from Amen Al-Yaari and Arnaud Mialon Call for publications Dear Colleagues, Surface soil moisture (the water content in the first centimeters of soil) is an essential climate variable that plays an important role in land–atmosphere interactions. Soil moisture is widely used in improving climate model predictions/projections, weather...

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A new debiased Seas surface Salinity map from LOCEAN New info from Jacqueline Boutin! A new version (version 3) of debiased SMOS SSS L3 maps generated by the LOCEAN CATDS expertise center is available at CATDS. This third version of Level 3 SMOS SSS corrected from systematic biases uses an improved ‘de-biasing’ technique: with respect to version 2, the adjustment of the long term mean SMOS SSS in very dynamical...

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SMOS and south-India applications at Toulouse Space... Every two years, Toulouse becomes during the "Toulouse Space Show" the "space to be"  when concerned with space economy. Now in its' 6th edition the TSS proved to be a great forum for discussion around the evolution or the revolution in Earth Observation. One round table concerned the Space Climate Observatory (SCO) a leading initiative to create an international observatory...

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Post-doctoral position Water extent mapping from data... Post-doctoral position Water extent mapping from data fusion of L-Band radiometry and radar Location: Centre d'Etudes Spatiale de la Biosphère (CESBIO), Toulouse, France Duration: 18 months start before November 2018 Description: Interested in creating state of the art remote sensing products in hydrology for existing and future satellite mission,...

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SMOS retrieves salinity closer to the coast line From J Boutin, and colleagues from LOCEAN Salinity observing satellites have the potential to monitor river fresh-water plumes mesoscale spatio-temporal variations better than any other observing system. In the case of the SMOS mission, this capacity was hampered due to the contamination of SMOS data processing by strong land-sea emissivity contrasts. With...

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Special Issue « New Outstanding Results over Land from the SMOS Mission »

Category : Data

from Amen Al-Yaari and Arnaud Mialon

Call for publications

Dear Colleagues,

Surface soil moisture (the water content in the first centimeters of soil) is an essential climate variable that plays an important role in land–atmosphere interactions. Soil moisture is widely used in improving climate model predictions/projections, weather forecasting, drought monitoring, rainfall estimations, etc.

Monitoring surface soil moisture at a global scale has recently become possible thanks to microwave remote sensing. SMOS (Soil Moisture and Ocean Salinity) was the first dedicated soil moisture mission that has been in orbit for eight years. The SMOS satellite was launched by the European Space Agency (ESA) in 2009, carrying on board a radiometer in the L-band frequency with a native spatial resolution of ~43 km. Since then, soil moisture and vegetation optical depth (VOD) have been retrieved from multi-angular brightness temperature observations relying mainly on a radiative transfer model.

This is a dedicated Special Issue on SMOS. We welcome studies on all subjects that are related to the SMOS satellite and its products.

Potential topics include, but are not limited to, the following:

  • the improvements in the soil moisture/VOD retrieval algorithms;
  • the evaluation/validation of the SMOS soil moisture and VOD products;
  • SMOS synergy with other remote sensing observations or models simulations;
  • SMOS soil moisture/VOD applications for agriculture, hydrology, etc.

Dr. Amen Al-Yaari
Dr. Arnaud Mialon
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Remote Sensing is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1800 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI’s English editing service prior to publication or during author revisions.

http://www.mdpi.com/journal/remotesensing/special_issues/smos_rs

A new debiased Seas surface Salinity map from LOCEAN

Category : CATDS, Cal/Val, L2, Ocean

New info from Jacqueline Boutin!

A new version (version 3) of debiased SMOS SSS L3 maps generated by the
LOCEAN CATDS expertise center is available at CATDS.

This third version of Level 3 SMOS SSS corrected from systematic biases
uses an improved ‘de-biasing’ technique: with respect to version 2, the
adjustment of the long term mean SMOS SSS in very dynamical areas, like
in river plumes, and the bias correction at high latitudes have been
improved. See more information and data link HERE

These products will be presented at IGARSS next week (poster 3447).

SMOS and south-India applications at Toulouse Space Show

Category : Non classé

Every two years, Toulouse becomes during the « Toulouse Space Show » the « space to be »  when concerned with space economy. Now in its’ 6th edition the TSS proved to be a great forum for discussion around the evolution or the revolution in Earth Observation. One round table concerned the Space Climate Observatory (SCO) a leading initiative to create an international observatory on climate and its’s impact.

At the CNES space, Dr. Selma Cherchali (Head of SCO and PM of SWOT mission) was showcasing several scenarios on how earth observation is helping assessing direct impacts on society covering a wide range of subjects: agricultural risks, coastal errosion, glaciers…

CNES had selected our scenarios at CESBIO to showcase activities in South-India. The scenario shows how challenges in the agricultural sector can be addressed using combined use of multispectral remote sensing data from microwave (SMOS), radar (Sentine-1, and optical (Sentine-2) sensors. We can see the drought monitoring at large and regional scale using soil moisture from SMOS and Sentinel-1, the water needs and ponds monitoring of at local scale using Sentinel-1 and Sentinel-2.

..and all were included in a interactive application from the SCO team, putting in highlight on the added value products.

Scientific references:

Al Bitar A., Mialon A., Kerr Y., Cabot F., Richaume P., Jacquette E., Quesney A., Mahmoodi A., Tarot S., Parrens M., “The Global SMOS Level 3 daily soil moisture and brightness temperature maps”, Earth System Science Data Discussions, 2017,10.5194/essd-2017-1,1-41,2017,Copernicus Publications

Sylvain F., Selles A., Le Page M., Herrault P.-A., Pelletier C., Al Bitar A., Mermoz S., Gascoin S., Bouvet A., Saqalli M., Dewandel B., Caballero Y., Ahmed S. , Maréchal J-C, Kerr Y., “Detection of Irrigated Crops from Sentinel-1 and Sentinel-2 Data to Estimate Seasonal Groundwater Use in South India”. Remote Sensing, 2017

Tomer S. K., Al Bitar A., Muddu S., Zribi M., Bandyopadhyay S., Kerr  Y. , MAPSM: A Spatio-Temporal Algorithm for Merging Soil Moisture from Active and Passive Microwave Remote Sensing, Remote Sensing, 8, 12, 990, 2016

Tomer S.K., Al Bitar A., Sekhar M., Zribi M., Bandyopadhyay S., Sreelash K., Sharma A.K., Corgne S., Kerr Y., ” Retrieval and Multi-scale Validation of Soil Moisture from Multi-temporal SAR Data in a Semi-Arid Tropical Region” , Remote Sensing,7,6,8128-8153, 2015

Al Bitar, Ahmad ; Kerr, Yann; Merlin, Olivier; Cabot, François; Choné, Audrey; Wigneron, Jean-Pierre; « Drought index driven by L-band microwave soil moisture data” , EGU General Assembly Conference Abstracts,16, 14340,2014

Kerr, Y.H. , Waldteufel Ph., Wigneron, J.P., Delwart S., Cabot F., Boutin, J. , Escorihuela M.-J., Font  J., Reul N., Gruhier C., “The SMOS mission: New tool for monitoring key elements of the global water cycle” , Proceedings of the IEEE,98 , 5, 666–687,  2010 , IEEE.

Post-doctoral position Water extent mapping from data fusion of L-Band radiometry and radar

Category : CATDS, Data, L3, L4, position opening

logo_cesbio


Post-doctoral position

Water extent mapping from data fusion of L-Band radiometry and radar

Location: Centre d’Etudes Spatiale de la Biosphère (CESBIO), Toulouse, France

Duration: 18 months start before November 2018

Description:

Interested in creating state of the art remote sensing products in hydrology for existing and future satellite mission, then join us ! In the framework of the future Surface Water and Ocean Topography (SWOT), a joint mission from French (CNES), American (NASA), Canadian (CSA), and British (UKSA) space agencies, CNES is developing a down-stream application service that will also integrate products from contemporary satellites. In 2008 the CNES had already developed a downstream centre (CATDS www.catds.fr) for the Soil Moisture Ocean Salinity (SMOS) mission which is providing today high level products for the mission. You will join the Microwave-SMOS group in the Observation Systems team at CESBIO. You will be under the supervision of Ahmad Al bitar (Ph.D.) who si in charge of high end (L4) products for CATDS and member of the Science Team of SWOT. You will contribute to existing collaborations with other institutions: LEGOS, GET, ECOLAB, Univ. Purpan.  You will be in charge of developing operationally ready products for the monitoring of inland water surfaces (wetlands, floodplains…) by extending the domain of application of existing algorithms and improving their resolution. These areas represent a great challenge and raise important scientific questions related to the water cycle, biodiversity and carbon cycle. Recent studies at CESBIO demonstrated the advantage of the use of L-Band for the monitoring of water surfaces under dense tropical forests. The final objective is to enrich the existing databases at global scale (CCI Water bodies, GSWO, GIEMS) and to make available a validation dataset for the future SWOT mission.

Actions:

> Adapting the retrieval algorithms for global application using L-Band brightness temperatures.
> Writing scientific papers, presenting results at conferences and project key-points.

Required Skills:

> Advanced knowledge of one programming language Matlab, Python using geospatial datasets.
> Proven writing and communication skills.
> Motivated, innovative and team-player.

Links:

https://www.researchgate.net/publication/317012733_Mapping_Dynamic_Water_Fraction_under_the_Tropical_Rain_Forests_of_the_Amazonian_Basin_from_SMOS_Brightness_Temperatures

Contact:

e-mail to : ahmad.albitar@cesbio.cnes.fr & santiago.penaluque@cnes.fr

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