What is SMOS?
ESA's Soil Moisture Ocean Salinity (SMOS) Earth Explorer mission is a radio telescope in orbit, but pointing back to Earth not space.
Its Microwave Imaging Radiometer using Aperture Synthesis (MIRAS) radiometer picks up faint microwave emissions from Earth's surface to map levels of soil moisture, sea surface salinity, sea ice thickness and others geophysical variable such as wind speed over ocean and freeze / thaw soil state.
Read more about this mission in the SMOS multimedia book.
Latest Mission Operations News
19 July 2019
A planned software maintenance activity will affect the SMOS data dissemination service on Monday 22 July during the following times:
21 June 2019
Due to a scheduled software maintenance on 24 June 2019 from 09:00 to 11:30 CEST, the ingestion of new SMOS products on the ESA SMOS online dissemination service will be delayed until the maintenance is completed.
Latest Mission Results News
As of yesterday, 11 June 2019, measurements from ESA's SMOS mission are being fully integrated into ECMWF's forecasting system, allowing for a more accurate description of water content in soil.
14 May 2019
The length and precision with which climate scientists can track the salinity, or saltiness, of the oceans is set to improve dramatically according to researchers working as part of ESA's Climate Change Initiative.
14 May 2019
Even just within the last couple of months, Cyclones Fani, Idai and Kenneth have brought devastation to millions. With the frequency and severity of extreme weather like this expected to increase against the backdrop of climate change, it is more important than ever to forecast and track events accurately. And, an ESA satellite is helping with the task in hand.
25 September 2018
With recent stories in the news about the devastation brought by hurricanes and typhoons to the US and Asia, we are reminded of how important it is to predict the paths of these mighty storms and also learn more about how they develop. Many satellites have eyes on storms, but ESA's SMOS mission can offer an entirely new perspective.
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