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Data Policy

Data Format

Versions



Extract matchup


 


Version and history


    Processing version


    MERIS Level 1B, Level 2, auxiliary and intermediary products stored in the database have been processed by MEGS, the MERIS prototype ground segment. Some in-situ water-leaving reflectances are also normalised with MERIS bidirectionality look-up tables.

    MERMAID users are thus strongly encouraged to pay attention to the processing version.
    Current available versions:

    • MEGS 7.5.1 in Reduced Resolution (identical to MERIS 2nd reprocessing but with updated geolocation)


    History


  • jan. 2010: major update of the data format, with notably inclusion of in-situ atmospheric measurements, correction for solar irradiance in in-situ water-leaving reflectance.

  • march. 2009: MERMAID website fully revised.

  • nov. 2008: inclusion of NOMAD and SIMBADA data.

  • sept. 2008: update of BOUSSOLE matchups, with all in-situ provided by D. Antoine from september 2003 to september 2007.

  • jun. 2008: new format with extended extractions (please refer to the MERMAID data format PDF file); inclusion of RGB in the extraction.

  • mar. 2008: new matchups at AAOT from G. Zibordi; they include notably pixels in glint condition.

  • nov. 2007: new matchups at MOBY + extraction of flag HIGH_GLINT to allow possible retrieval of only MEDIUM_GLINT pixels.

  • sept. 2007: initial database with BOUSSOLE, AAOT and MOBY matchups.