Fundamental Data Records for Altimetry [ALT_FDR___]
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access rights: Utilisation of this data is subject to ESA's Earth Observation Terms and Conditions. https://earth.esa.int/eogateway/documents/20142/1564626/Terms-and-Conditions-for-the-use-of-ESA-Data.pdf
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  has URL: https://earth.esa.int
  has name: ESA/ESRIN
  has address: Address
    street-address: Largo Galileo Galilei 1
    postal-code: 00044
    locality: Frascati
    country-name: Italy
identifier: Identifier
  notation: https://doi.org/10.5270/esa-a681fe7
  creator: https://doi.org/
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bibliographic citation: European Space Agency, 2023, FDR4ALT Fundamental Data Records for Altimetry. Version 1.0.
description: This dataset is a Fundamental Data Record (FDR) resulting from the _$$ESA FDR4ALT project$$ https://www.fdr4alt.org/ . 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 _$$FDR4ALT Product User Guide$$ https://earth.esa.int/eogateway/documents/d/earth-online/fdr4alt-products-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.
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subject: elevation
access rights: conditions to access and use unknown
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language: EN
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modified: 2024-04-22T00:00:00.000Z

Cryosphere
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RA-2
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ENVISAT
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Sea Surface Topography
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PUBLIC
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CatalogRecord
source: https://fedeo.ceos.org/collections/FDRforAltimetry
modified: 2026-06-08T07:20:54Z
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EARTH SCIENCE>CRYOSPHERE>SNOW/ICE
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Radar Altimeters
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Oceans
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Marine Geophysics
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