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  • Data (30)
  • News (93)
  • Missions (2)
  • Events (33)
  • Tools (21)
  • Activities (15)
  • Campaigns (4)
  • Documents (194)
  • 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 - Infographics

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    Showcasing success stories from ESA's Heritage Missions

    Find out how ESA's Heritage Space Programme data continue to help, even decades after they finished operations, in our latest infographic.

  • Document - Newsletter

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    Earth Online Newsletter - 08 March 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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    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 - Product Document

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    FDR4ALT-Validation-Report-TDP-Sea-Ice

    FDR4ALT Product Validation Report: Sea-Ice TDP

  • Document - Product Document

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    FDR4ALT-Validation-Report-TDP-Ocean-Waves

    FDR4ALT Product Validation Report: Ocean Waves TDP

  • Document - Product Document

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    FDR4ALT-Validation-Report-TDP-Ocean-Coastal

    Product Validation Report: Ocean & Coastal TDP

  • Document - Product Document

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    FDR4ALT-Validation-Report-TDP-Land-Ice

    FDR4ALT Product Validation Report: Land-Ice TDP

  • Document - Product Document

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    FDR4ALT-Validation-Report-TDP-Inland-Waters

    FDR4ALT Product Validation Report: Inland Waters TDP

  • Document - Product Document

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    FDR4ALT-Validation-Report-TDP-Atmosphere

    FDR4ALT Product Validation Report: Atmosphere TDP

  • Document - Product Document

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    FDR4ALT-Validation-Report-FDR

    FDR4ALT Product Validation Report: FDR

  • Document - Product Document

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    FDR4ALT-Uncertainties-Characterisations

    FDR4ALT Uncertainty Characterisation Report

  • Document - User Guide

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    FDR4ALT-Products-User-Guide

    FDR4ALT Product User Guide

  • Document - Product Specifications

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    FDR4ALT-Product-Requirements-Format-Specifications

    FDR4ALT Products Requirements and Format Specification

  • Document - Detailed Processing Model

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    FDR4ALT-Detailed-Processing-Model

    FDR4ALT Detailed Processing Model

  • Document - Product Document

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    FDR4ALT-Completeness-Report-MWR-Products

    FDR4ALT Completeness Report: MWR

  • Document - Product Document

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    FDR4ALT-Completeness-Report-ALT-Products

    FDR4ALT Completeness Report: ALT

  • Data - EO Sign In Authentication (Open)

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    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.

  • Data - EO Sign In Authentication (Open)

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    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.

  • Data - EO Sign In Authentication (Open)

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    Land Ice Thematic Data Product [ALT_TDP_LI]

    This is the Land Ice Thematic Data Product (TDP) V1 resulting from the ESA FDR4ALT project and containing estimates of ice sheet surface elevation and associated uncertainties. The collection covers data for three different missions: ERS-1, ERS-2 and Envisat, and based 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 Land Ice TDP focuses specifically on the ice sheets of Greenland and Antarctica, providing these data in different files. For many aspects, the Land Ice Level 2 and Level 2+ processing is very innovative: Improved relocation approach correcting for topographic effects within the beam footprint to identify the Point of Closest Approach Homogeneous timeseries of surface elevation measurements at regular along-track reference nodes. 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.