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  • Showcasing Fundamental Data Records for Altimetry

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

  • 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.

  • Fundamental Data Records for Radiometry [MWR_FDR___]

    This dataset is a Fundamental Data Record (FDR) resulting from the ESA FDR4ALT project. The Fundamental Data Record for Radiometry V1 products contain intercalibrated Top of the Atmosphere brightness temperatures at 23.8 and 36.5 GHz. The collection covers data for the ERS-1, ERS-2 and Envisat missions, and is built upon a new processing of Level 0 data, incorporating numerous improvements in terms of algorithms, flagging procedures, and corrections. Compared to existing datasets, the Radiometry FDR demonstrates notable improvements in several aspects: New solutions for instrumental effects (ERS Reflector loss, Skyhorn, and Sidelobe corrections) Native sampling rate of 7Hz with enhanced coverage 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.

  • Fundamental Data Records for Altimetry [ALT_FDR___]

    This dataset is a Fundamental Data Record (FDR) resulting from the ESA FDR4ALT project. The Fundamental Data Record for Altimetry V1 products contain Level 0 and Level 1 altimeter-related parameters including calibrated radar waveforms and supplementary instrumental parameters describing the altimeter operating status and configuration through the satellite lifetime. The data record consists of data for the ERS-1, ERS-2 and Envisat missions for the period ranging from 1991 to 2012, and bases on the Level 1 data obtained from previous ERS REAPER and ENVISAT V3.0 reprocessing efforts incorporating new algorithms, flags, and corrections to enhance the accuracy and reliability of the data. For many aspects, the Altimetry FDR product has improved compared to the existing individual mission datasets: New neural-network waveform classification, surface type classification, distance to shoreline and surface flag based on GSHHG Instrumental calibration information directly available in the product Improved Orbit solutions Correction of REAPER drawbacks (i.e., time jumps and negative waveforms) 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.

  • Ocean Waves Thematic Data Product [ALT_TDP_WA]

    This is the Ocean Waves Thematic Data Product (TDP) V1 resulting from the ESA FDR4ALT project and containing Significant Wave Height estimates for the ERS-1, ERS-2 and Envisat missions. Compared to existing datasets, the Ocean Waves TDP demonstrates notable improvements in several aspects: Great improvements for Envisat due to noise reduction from Adaptive retracker and High-Frequency Adjustment (HFA) All variables are given at 5 Hz 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.

  • 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.

  • ERS Heritage Data allow for 30 years of science

    At their time of launch thirty years ago, the two ERS satellites were the most sophisticated Earth observation spacecraft ever developed and launched by Europe.

  • ERS - ESA’s first Earth observation satellites

    To mark the 30th anniversary of ERS, we've released a new infographic summarising the mission.

  • 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.

  • ERS-2 AMI-SAR/AMI-Scatterometer Weekly Report 14 Apr 2002

    ERS-2 AMI-SAR/AMI-Scatterometer Weekly Report

  • ERS-2 AMI-SAR/AMI-Scatterometer Weekly Report 07 Apr 2002

    ERS-2 AMI-SAR/AMI-Scatterometer Weekly Report

  • ERS-2 AMI-SAR/AMI-Scatterometer Weekly Report 28 Apr 2002

    ERS-2 AMI-SAR/AMI-Scatterometer Weekly Report

  • ERS-2 AMI-SAR/AMI-Scatterometer Weekly Report 12 May 2002

    ERS-2 AMI-SAR/AMI-Scatterometer Weekly Report

  • ERS-2 AMI-SAR/AMI-Scatterometer Weekly Report 05 May 2002

    ERS-2 AMI-SAR/AMI-Scatterometer Weekly Report

  • ERS-2 AMI-SAR/AMI-Scatterometer Weekly Report 21 Apr 2002

    ERS-2 AMI-SAR/AMI-Scatterometer Weekly Report

  • ERS-2 AMI-SAR/AMI-Scatterometer Weekly Report 01 Sep 2002

    ERS-2 AMI-SAR/AMI-Scatterometer Weekly Report

  • ERS-2 AMI-SAR/AMI-Scatterometer Weekly Report 09 Jun 2002

    ERS-2 AMI-SAR/AMI-Scatterometer Weekly Report

  • ERS-2 AMI-SAR/AMI-Scatterometer Weekly Report 23 Jun 2002

    ERS-2 AMI-SAR/AMI-Scatterometer Weekly Report

  • ERS-2 AMI-SAR/AMI-Scatterometer Weekly Report 19 May 2002

    ERS-2 AMI-SAR/AMI-Scatterometer Weekly Report

  • ERS-2 AMI-SAR/AMI-Scatterometer Weekly Report 05 Jul 2002

    ERS-2 AMI-SAR/AMI-Scatterometer Weekly Report