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  • Data (14)
  • News (66)
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  • Events (21)
  • Tools (14)
  • Activities (2)
  • Campaigns (3)
  • Documents (1044)
  • News - How to guides

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    HEDAVI Discover: a step-by-step guide

    The Heritage Data Visualisation tool (HEDAVI) is a platform developed by the French Science Consulting for Earth Observation group, VisioTerra, which allows users to freely access over 40 years of ESA Earth Observation Heritage data, Third Party Missions and some Copernicus data.

  • News - Operational News

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    Transition from FTP to FTPS for SMOS, Aeolus and Campaign data dissemination systems

    As of 15 April 2024 access to the SMOS, Aeolus and Campaign data will be changed from simple FTP to FTPS.

  • News - Operational News

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    SMOS data distribution resumed

    SMOS data distribution to end users was resumed on 12 March 2024 after confirmation of the adequate quality of the current data.

  • News - Operational News

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    SMOS data outage since 22 February 2024

    SMOS went into safe mode on 22 February 2024 at 05:10 UTC for reasons that are still under investigation.

  • Document - Newsletter

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    Earth Online Newsletter - 23 February 2024

    This issue of the Earth Online Newsletter covers a selection of the latest news and events from ESA.

  • News - Data Release news

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    New reanalysis dataset impacts SMOS Level 3 and 4 sea ice thickness

    On 24 January 2024 the JRA55 reanalysis dataset was terminated and updated with the Japanese Reanalysis for Three Quarters of a Century.

  • News - Operational News

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    SMOS Winds Product data gap recovery

    From 28 January 2024 to 9 February 2024, several Level 1 products used as an input to the SMOS winds processor were flagged with a warning.

  • News - Maintenance News

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    SMOS Data Dissemination - Maintenance on 30 January 2024

    A planned software maintenance activity will affect ESA's SMOS data dissemination service on 30 January 2024, from 08:30 to 09:30 UTC.

  • News - Events and Proceedings

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    Highlighting the value of SMOS data in space weather applications

    Data from ESA’s SMOS mission are driving many space weather applications, ranging from air navigation, characterisation of solar flares, space weather modelling and ionospheric electron content mapping.

  • Document - Newsletter

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    Earth Online Newsletter - 12 January 2024

    This issue of the Earth Online Newsletter covers a selection of the latest news and events from ESA.

  • News - General News

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    Ensuring soil moisture data quality with reference measurements

    ESA is taking steps to verify the accuracy of soil moisture estimation with the Fiducial Reference Measurements for Soil Moisture (FRM4SM) project and a new version of the Quality Assurance for Soil Moisture (QA4SM) service.

  • News - Success Stories

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    Discover Earth like never before: the HEDAVI tool

    The Heritage Data Visualisation tool, or HEDAVI, enables the analysis of global spatio-temporal dynamics of natural and artificial environments, covering over 40 years of ESA Earth Observation Heritage data, Third Party Missions and some Copernicus data.

  • News - Data Release news

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    New version v206 of the SMOS-CryoSat level 4 sea ice thickness product is now available

    The new version 206 of the merged SMOS-CryoSat level 4 sea ice thickness product is now available on the SMOS data dissemination service.

  • News - Data Release news

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    Experimental version of SMOS Antarctic Sea ice thickness product is now available

    The experimental version of SMOS Antarctic Sea ice thickness product was produced using a method to derive the sea-ice thickness from 1.4 GHz brightness temperatures previously developed for the Arctic, with only modified auxiliary data. The product is available in the cold season during the freezing period, typically March to October for the Southern Hemisphere.

  • News - Data Release news

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    14 years of reprocessed SMOS Freeze/Thaw soil status products are now available

    14 years of reprocessed SMOS Freeze/Thaw soil status products are now available from the SMOS dissemination service

  • Document - Product Document

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    smos-freeze-and-thaw-processing-and-dissemination-service-read-me-first-technical-note

    This Read-me-first technical note introduces level 3 SMOS Soil Freeze and Thaw (F/T) product (SMOS L3FT).

  • Document - Product Document

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    smos-freeze-and-thaw-processing-and-dissemination-service-product-description-document

    This document describes the Level 3 SMOS soil Freeze and Thaw (F/T) status product, referred to hereafter as SMOS L3FT.

  • News - Data Release news

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    New version of SMOS L3 Soil Freeze and Thaw product soon available

    Seasonal freezing and thawing of soil play a fundamental role in shaping ecosystems and influencing a range of ecological processes.

  • Event - Workshop

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    2nd SMOS for Space Weather Workshop

    The Second Workshop on SMOS for Space Weather will take place on 27 October 2023, hosted by the Space Weather Group of the University of Alcala, Alcalá de Henares (Madrid, Spain).

  • Data - Data Description

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    ALOS PRISM L1C

    This collection provides access to the ALOS-1 PRISM (Panchromatic Remote-sensing Instrument for Stereo Mapping) OB1 L1C data acquired by ESA stations (Kiruna, Maspalomas, Matera, Tromsoe) in the ADEN zone, in addition to worldwide data requested by European scientists. The ADEN zone was the area belonging to the European Data node and covered both the European and African continents, a large part of Greenland and the Middle East. The full mission archive is included in this collection, though with gaps in spatial coverage outside of the ADEN zone. With respect to the L1B collection, only scenes acquired in sensor mode with a Cloud Coverage score lower than 70% and a sea percentage lower than 80% are published: Orbits: from 2768 to 27604 Path (corresponds to JAXA track number): from 1 to 665 Row (corresponds to JAXA scene centre frame number): from 310 to 6790. The L1C processing strongly improve accuracy compared to L1B1 from several tenths of metres in L1B1 (~40 m of northing geolocation error for Forward views and ~10-20 m for easting errors) to some metres in L1C scenes (< 10 m both in north and easting errors). The collection contains only the PSM_OB1_1C EO-SIP product type, using data from PRISM operating in OB1 mode with three views (Nadir, Forward, and Backward) at 35 km wide. Most of the products contain all three views, but the Nadir view is always available and is used for the frame number identification. All views are packaged together; each view, in CEOS format, is stored in a directory named according to the JAXA view ID naming convention.