Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

ESA and EADS-CASA sign contract to build instrument for the SMOS mission

18.06.2004


The Soil Moisture and Ocean Salinity mission will provide global maps of soil moisture and ocean salinity. Soil moisture data are urgently required for hydrological studies and data on ocean salinity are vital for improving our undertanding of ocean circulation patterns. Together these data will contribute to furthering our knowledge of the Earth’s water cycle, and will improve climate, weather and extreme-event forecasting.


A significant milestone in the development of ESA’s Soil Moisture and Ocean Salinity (SMOS) mission was reached last week when the contract to build the payload was signed between ESA and EADS (European Aeronautic Defence and Space Company)-CASA from Spain.

The contract, worth 62 million euros, was signed in Madrid, Spain on 11 June 2004 at the premises of the CDTI (Centre for Development of Industrial Technology). EADS-CASA now heads an industrial consortium of more than 20 companies from all over Europe, and is committed to construct the innovative MIRAS (Microwave Imaging Radiometer using Aperture Synthesis) instrument that will form the core of the SMOS mission.

Scheduled for launch in early 2007, SMOS is the second Earth Explorer Opportunity mission to be implemented as part of ESA’s Living Planet Programme. The main aim of the mission is to further the development of climatological, meteorological and hydrological models by observing soil moisture over the Earth’s landmasses and sea-surface salinity over the oceans for a period of at least 3 years. At the signing ceremony, Prof. José Achache, ESA’s Director of Earth Observation Programmes, stated that, “SMOS will provide a major advancement in our ability to model and understand the global hydrological cycle.”



The moisture in soil and the salt in the oceans are intrinsically linked to the Earth’s water cycle and climate. Currently, in-situ measurements for soil moisture are sparse, but if we are to better understand the water cycle so that the forecasting of climate, weather and extreme events such as floods can be improved more data are urgently required. The same is true for data on ocean salinity - only a small fraction of the ocean is sampled on any regular basis. However, salinity is an important factor driving the currents in the ocean and in turn ocean circulation plays a crucial role moderating the climate. Therefore, comprehensive data on ocean salinity would greatly improve our knowledge of the conditions that influence global ocean circulation and thus climate.

Not only will this mission further our understanding of the Earth system, but it will also demonstrate a new measuring technique by adopting a completely different approach in the field of remote sensing. SMOS will carry the first-ever polar-orbiting satellite-borne
2-D interferometric radiometer. From an altitude of 763 km, the novel MIRAS instrument has been designed to capture images of microwave radiation emitted from the surface of the Earth at L-band (1.4 GHz).

MIRAS is made up of a central structure and three deployable arms. There are 69 antenna elements, so-called LICEF receivers, which are equally distributed over the central structure and three arms. Each LICEF is an antenna-receiver integrated unit that measures the radiation emitted from the Earth at L-band. The measuring principle takes advantage of the fact that moisture and salinity influence the emissivity of soil and seawater, respectively. From the information gathered, scientists will be able to derive maps of soil moisture and ocean salinity on a global scale.

Now that the contract has been signed to go ahead and build the payload the SMOS mission has taken a significant and exciting step forward in its development.

Ms Karina De Castris | ESA-ESRIN
Further information:
http://www.esa.int/esaSA/SEMLY93VQUD_earth_0.html

More articles from Physics and Astronomy:

nachricht CCNY physicists master unexplored electron property
26.07.2017 | City College of New York

nachricht Large, distant comets more common than previously thought
26.07.2017 | University of Maryland

All articles from Physics and Astronomy >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Carbon Nanotubes Turn Electrical Current into Light-emitting Quasi-particles

Strong light-matter coupling in these semiconducting tubes may hold the key to electrically pumped lasers

Light-matter quasi-particles can be generated electrically in semiconducting carbon nanotubes. Material scientists and physicists from Heidelberg University...

Im Focus: Flexible proximity sensor creates smart surfaces

Fraunhofer IPA has developed a proximity sensor made from silicone and carbon nanotubes (CNT) which detects objects and determines their position. The materials and printing process used mean that the sensor is extremely flexible, economical and can be used for large surfaces. Industry and research partners can use and further develop this innovation straight away.

At first glance, the proximity sensor appears to be nothing special: a thin, elastic layer of silicone onto which black square surfaces are printed, but these...

Im Focus: 3-D scanning with water

3-D shape acquisition using water displacement as the shape sensor for the reconstruction of complex objects

A global team of computer scientists and engineers have developed an innovative technique that more completely reconstructs challenging 3D objects. An ancient...

Im Focus: Manipulating Electron Spins Without Loss of Information

Physicists have developed a new technique that uses electrical voltages to control the electron spin on a chip. The newly-developed method provides protection from spin decay, meaning that the contained information can be maintained and transmitted over comparatively large distances, as has been demonstrated by a team from the University of Basel’s Department of Physics and the Swiss Nanoscience Institute. The results have been published in Physical Review X.

For several years, researchers have been trying to use the spin of an electron to store and transmit information. The spin of each electron is always coupled...

Im Focus: The proton precisely weighted

What is the mass of a proton? Scientists from Germany and Japan successfully did an important step towards the most exact knowledge of this fundamental constant. By means of precision measurements on a single proton, they could improve the precision by a factor of three and also correct the existing value.

To determine the mass of a single proton still more accurate – a group of physicists led by Klaus Blaum and Sven Sturm of the Max Planck Institute for Nuclear...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Clash of Realities 2017: Registration now open. International Conference at TH Köln

26.07.2017 | Event News

Closing the Sustainability Circle: Protection of Food with Biobased Materials

21.07.2017 | Event News

»We are bringing Additive Manufacturing to SMEs«

19.07.2017 | Event News

 
Latest News

CCNY physicists master unexplored electron property

26.07.2017 | Physics and Astronomy

Molecular microscopy illuminates molecular motor motion

26.07.2017 | Life Sciences

Large-Mouthed Fish Was Top Predator After Mass Extinction

26.07.2017 | Earth Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>