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 Newsletter #7 now available

16 April 2014

The seventh issue of the SMOS newsletter is now available. The SMOS user community is invited to stay up-to-date with the latest news and activities of the SMOS mission in this periodic newsletter.

SMOS Level 2 sea surface salinity 2013 "catch-up" reprocessing completed

28 March 2014

The SMOS L2 sea surface salinity 2013 "catch-up" reprocessing campaign has been completed and the data set covering the period from 1 January 2013 to 31 December 2013 is now available to the SMOS user community.

Esrange Kiruna - Planned downtime on 20 March 2014

19 March 2014

Due to a planned maintenance the PFD-NS-KE and the SMOS Long Term Archive/E-OA server at the Esrange Space Center in Kiruna will be down between 10:00 to 14:00 UTC on Thursday 20 March 2014.

Minimize Latest Mission Results News
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What lies beneath?

09 January 2014

A field campaign dedicated to SMOS and GOCE has revealed unexpected similarities in the missions' very different types of measurements. This surprising discovery could lead to a better understanding of what is happening deep under the Antarctic ice sheet.

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SMOS sees triple superstorms

22 October 2013

ESA's versatile water mission tracked Asia's recent storms over land and sea.

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Looking to the future of Earth observation

13 September 2013

The Living Planet Symposium has come to a close in Edinburgh, and a week of talking about past, present and future satellite missions, as well as the scientific challenges facing us, has prepared Earth observation for a new chapter.

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Water mission versatility

12 September 2013

While ESA's SMOS satellite continues to provide key information on soil moisture and ocean salinity for a better understanding of the water cycle, Living Planet Symposium participants in Edinburgh today heard how the mission is also set to improve weather forecasts.