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  • Data (1)
  • News (5)
  • Missions (1)
  • Events (5)
  • Tools (2)
  • Activities (1)
  • Documents (34)
  • News - Thematic area articles

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    Transforming space data into climate action

    ESA’s Earth observation activities are playing a key role in the revitalised global drive to combat climate change.

  • Data - EO Sign In Authentication (Open)

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    Sea Ice Thematic Data Product [ALT_TDP_SI]

    This is the Sea Ice Thematic Data Product (TDP) V1 resulting from the ESA FDR4ALT project and containing the sea ice related geophysical parameters, along with associated uncertainties: snow depth, radar and sea-ice freeboard, sea ice thickness and concentration. The collection covers data for the ERS-1, ERS-2 and Envisat missions, and bases on Level 1 data coming from previous reprocessing (ERS REAPER and the Envisat V3.0) but taking into account the improvements made at Level 0/Level 1 in the frame of FDR4ALT (ALT FDR). The Sea Ice TDP provides data from the northern or southern hemisphere in two files corresponding to the Arctic and Antarctic regions respectively for the winter periods only, i.e., October to June for the Arctic, and May to November for the Antarctic. For many aspects, the Sea Ice TDP is very innovative: First time series of sea-ice thickness estimates for ERS Homogeneous calibration, allowing the first Arctic radar freeboard time series from ERS-1 (1991) to CryoSat-2 (2021) Uncertainties estimated along-track with a bottom-up approach based on dominant sources ERS pulse blurring error corrected using literature procedure [Peacock, 2004] The FDR4ALT products are available in NetCDF format. Free standard tools for reading NetCDF data can be used. Information for expert altimetry users is also available in a dedicated NetCDF group within the products. Please consult the FDR4ALT Product User Guide before using the data. The FDR4ALT datasets represent the new reference data for the ERS/Envisat altimetry missions, superseding any previous mission data. Users are strongly encouraged to make use of these datasets for optimal results.

  • Activity - Quality

    SCIRoCCo

    The SCIRoCCo project is an interdisciplinary cooperation of scatterometry experts aimed at promoting the continuing exploitation of ESA's unique 20 years' worth of ERS Scatterometer data.

  • News - Data Release news

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    New reprocessing of datasets celebrates 30 years of ERS

    The ERS programme celebrated its 30th anniversary on 17 July. Today, we are still exploiting ERS data and experts continue to work on improving the altimeter, radiometer and SAR data the programme acquired.

  • Tools - Apps

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    Heritage Missions app for iOS

    Download the Heritage Missions application to discover what the missions were about, how it worked and what the elements of the space and ground segment that make these missions unique.

  • Tools - Apps

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    Heritage Missions app for Android

    Download the Heritage Missions application to discover what the missions were about, how it worked and what the elements of the space and ground segment that make these missions unique.

  • News - Data Release news

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    FDR4ALT - ESA unveils new cutting-edge ERS/Envisat Altimeter and Microwave Radiometer Datasets

    The European Space Agency (ESA) has developed a comprehensive suite of innovative Earth system data records as part of the Fundamental Data Records for Altimetry project - FDR4ALT.

  • Document - Quality Report

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    ERS-2 RA Cyclic Report 30 Oct 2000

    ERS-2 RA Cyclic Report

  • Document - Quality Report

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    ERS-2 RA Cyclic Report 28 May 2001

    ERS-2 RA Cyclic Report

  • Document - Quality Report

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    ERS-2 RA Cyclic Report 28 Jan 2002

    ERS-2 RA Cyclic Report

  • Document - Quality Report

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    ERS-2 RA Cyclic Report 25 Sep 2000

    ERS-2 RA Cyclic Report

  • Document - Quality Report

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    ERS-2 RA Cyclic Report 24 Dec 2001

    ERS-2 RA Cyclic Report

  • Document - Quality Report

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    ERS-2 RA Cyclic Report 23 Apr 2001

    ERS-2 RA Cyclic Report

  • Document - Quality Report

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    ERS-2 RA Cyclic Report 21 Aug 2000

    ERS-2 RA Cyclic Report

  • Document - Quality Report

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    ERS-2 RA Cyclic Report 19 Nov 2001

    ERS-2 RA Cyclic Report

  • Document - Quality Report

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    ERS-2 RA Cyclic Report 19 Mar 2001

    ERS-2 RA Cyclic Report

  • Document - Quality Report

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    ERS-2 RA Cyclic Report 17 Jul 2000

    ERS-2 RA Cyclic Report

  • Document - Quality Report

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    ERS-2 RA Cyclic Report 15 Oct 2001

    ERS-2 RA Cyclic Report

  • Document - Quality Report

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    ERS-2 RA Cyclic Report 13 May 2002

    ERS-2 RA Cyclic Report

  • Document - Quality Report

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    ERS-2 RA Cyclic Report 12 Jun 2000

    ERS-2 RA Cyclic Report