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

ESRIN - EO-SSO maintenance 15 December 2016

14 December 2016

A planned system maintenance at ESA-ESRIN will be affecting all Earth Observation (EO) SSO services; the activity has been scheduled on Thursday 15 December from 09:30 to 10:30 CET.

SMOS Toolbox Version 5.3 now available

07 December 2016

ESA would like to inform the SMOS data users community that the SMOS Toolbox for SNAP (Sentinel Application Platform) has been updated to fully support the next version of SMOS Level 1C and Level 2 products.

ESRIN - EO-SSO maintenance - 29 November 2016

28 November 2016

A planned system maintenance will be affecting the availability of all Earth Observation (EO) SSO services at ESA-ESRIN; the activity has been scheduled on Tuesday 29 November from 09:00 to 13:00 CET.

Minimize Latest Mission Results News
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Satellite cousins have ice covered

16 December 2016

Although not designed to deliver information on ice, ESA's Earth Explorer SMOS satellite can detect thin sea-ice. Since its cousin, CryoSat, is better at measuring thicker ice scientists have found a way of using these missions together to yield an even clearer picture of the changing Arctic.

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Space agencies combine efforts for space hydrology

11 November 2016

Heads of space agencies are meeting today in Marrakesh, Morocco at the COP22 climate change summit to reaffirm their commitment to a coordinated approach for monitoring Earth's climate, with particular focus on the water cycle.

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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 NiƱo event.