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.