Processor Description - FLH/MCI

Please note: The chapter BEAM Scientific Data Processors provides a general description for all BEAM data processors. It describes the common graphical user interface (GUI), the command-line interface and the common processing request file format.

The FLH/MCI In- and Output Parameter tab

1. Input product file: Select the input product file by either typing the product path into the text field or pressing the file selection item to invoke a standard file dialog.
2. Output product file: Select the output product file by either typing the product path into the text field or pressing the file selection item to invoke a standard file dialog.
3. Output product format: Select one of the available output product formats from the combo box.
4. Log filename prefix: Select the prefix text used for the logfile written during processing. For a complete description of the logging capabilities please refer to the logging documentation.
5. Extra log to output directory: Select whether to write an additional log file to the directory selected for the output product.

The FLH/MCI Processing Parameters tab

1. Preset: Select one of the available presets from the predefined list. Available presets are:
   • MERIS L2 FLH: Meris L2 product fluorescence lineheight
   • MERIS L1b MCI: Meris L1b maximum chlorophyll index
   • MERIS L2 MCI: Meris L2 maximum chlorophyll index
   • General baseline height
   The preset selects the bands used to calculate the baseline, the signal band, the lineheight band and the slope band.
2. Low baseline band name: Band name for the low wavelength band defining the baseline. Enter a band name or select one of the list of available bands (only available when an input product is already selected).
3. High baseline band name: Band name for the high wavelength band defining the baseline. Enter a band name or select one of the list of available bands (only available when an input product is already selected).
4. Signal band name: Band name of the signal band, i.e. the band for which the baseline height is calculated. Enter a band name or select one of the list of available bands (only available when an input product is already selected).
5. Lineheight band name: Enter the name of the lineheight band in the output product.
6. Output slope: Select if the baseline slope shall be written to the output product or not.
7. Slope band name: Enter the name of the slope band in the output product (disabled when no slope calculation is desired)
8. Bitmask: Select a bitmask expression to be checked during processing. You can either type the expression manually to the text field or use the bitmask expression editor by pressing the edit button at the right (only available when an input product is already selected).
9. Cloud Correction Factor: Select a cloud correction factor to be used during calculation. Consult the algorithm documentation for details.
10. Invalid pixel value: Select the value to be written to the output when the processor detects an invalid condition (either by the pixel being masked out or by a processing failure e.g division by zero).

The FLH/MCI processing request file

The following table describes the FLH/MCI specific processing request file parameter. For a detailed description of the processing request file concept and file specification please look at the general description section.