Minimize What is SMOS?
Web Content Image

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

Improved SMOS soil moisture products released to users

09 August 2018

ESA has just released improved SMOS Level 2 near-real time soil moisture neural network products to users.

SMOS Data collections maintenance - 26 July 2018

25 July 2018

Due to maintenance, the data collections on the ESA SMOS Online dissemination tool will be unavailable on 26 July 2018, from 10:00 to 13:00 CEST.

Earth Observation data distribution services improvement

14 June 2018

ESA has started a process to improve the Earth Observation data distribution services, aiming at facilitating access to data and information for the end users, initially by shortening the access path and reviewing authentication and authorisation processes.

Minimize Latest Mission Results News

Eight years of SMOS Arctic sea ice thickness level now available from SMOS Data dissemination portal

16 May 2018

Daily maps of sea ice thickness based on SMOS Observations, covering the winter seasons in the Arctic for the period of October-April from year 2010/2011 to year 2017/2018, are now available from the SMOS Data dissemination portal.

Web Content Image

Nearly four decades of soil moisture data now available

03 November 2017

A new, long-term and global dataset of soil moisture measurements from space has been released to help us better understand the water cycle and climate, monitor agriculture and manage our water resources.

Web Content Image

Taking farming into the space age

01 August 2017

Satellites such as Europe's Copernicus Sentinel missions and ESA's SMOS and the upcoming Florescence Explorer, FLEX, provide a wealth of information about growing conditions and crop health that can be used to improve agricultural efficiency.

Web Content Image

DOMEX-3 2016 campaign data now available for Cal/Val users

25 July 2017

In-situ DOMEX-3 measurements for 2016 are now available for Cal/Val users along with the yearly campaign report. The measurements were acquired over the Antarctic plateau close to the Concordia base by tower based L-Band radiometer and by on-ground sensors for snow properties.