Minimize What is SMOS?
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ESA's Soil Moisture Ocean Salinity (SMOS) Earth Explorer mission is a radio telescope in orbit, but pointing back to Earth not space. It's Microwave Imaging Radiometer using Aperture Synthesis (MIRAS) radiometer picks up faint microwave emissions from Earth's surface to map levels of land soil moisture and ocean salinity.

These are the key geophysical parameters, soil moisture for hydrology studies and salinity for enhanced understanding of ocean circulation, both vital for climate change models.

Minimize Latest Mission Operations News

SMOS Level 2 Soil Moisture data now available via EUMETCast in Near-Real-Time

15 June 2016

The SMOS Level 2 Soil Moisture data available in NRT based on a neural network approach (Level-2 SM-NRT-NN product in netCDF format) are now available via EUMETCast, within four hours from sensing.

Living Planet Symposium Questionnaire

13 May 2016

ESA has created a User Satisfaction Survey which aims to help us to improve the services to all users of ESA Earth Observation, Copernicus Sentinel and Third Party Missions.

More than 600 participants have already provided their feedback during the recent Living Planet Symposium in Prague.

The survey, addressed to both scientific and commercial data users, will remain open until 31 May 2016.

Impact of ECMWF forecast cycle 41r2 on SMOS level 2 sea surface salinity and soil moisture products

22 March 2016

On 8 March 2016, ECMWF upgraded the integrated forecasting system (IFS). The new cycle, labelled 41r2 (previous cycle was labelled 41r1), includes a number of enhancements to the model, to the data assimilation and the increase of the horizontal resolution which is now about 9 km for the high-resolution (HRES) forecast and the data assimilation schema. For further details about this upgrade see the related ECMWF web-page.

Minimize Latest Mission Results News
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SMOS on speed

14 October 2016

While ESA's water mission was built to advance our understanding of Earth, it continues to show how well it's suited to delivering information for numerous applications that improve everyday life. Taking this a step further, soil moisture data products are now available within three hours of measurement, which is essential for many applications.

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SMOS tracks Pacific fresh water pools

27 July 2016

ESA's SMOS satellite has found a rise in fresh water in the tropical Pacific Ocean during last year's El Niño event.

Dedicated special issue on SMOS in Remote Sensing of Environment (RSE): now published

18 May 2016

The dedicated special issue on SMOS: ‘ESA's Soil Moisture and Ocean Salinity Mission - Achievements and Applications' in the Remote Sensing of Environment (RSE) journal volume 180 (2016) is now available on the Science Direct website.

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SMOS gets help from Tibet

29 January 2016

Ground measurements are essential for making sure that satellites deliver accurate information about our changing world. Although the Tibetan Plateau may not seem the obvious place to take such readings, this remote location is being used to check on ESA's SMOS satellite.