FAPAR Processor

FAPAR Processor Documentation

Please note that:

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.

You can find this chapter in the beam help area path:

VISAT / Tools / Product Generation Tools / Data Processors

The FAPAR Input and Output Parameter tab

Input product file
Select the input Level 1b product file by either typing the product path into the text field or pressing the file selection item to invoke a standard file dialog.
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.
Output product format
Select one of the available output product formats from the pull-down menu.

The FAPAR processing request file

The following table describes the FAPAR specific processing request file parameters. For a detailed description of the processing request file concept and file specification please take a look at the section general description inside the chapter BEAM Scientific Data Processors described at the top of this page.

Parameter name Description Mandatory Type Valueset Default Value
type (Request type) Request type identifier yes String "FAPAR"
output_format The output product format to be used no String "BEAM-DIMAP"

Using the FAPAR product

After creating the FAPAR product using the FAPAR processor, all the VISAT tools can be used as explained in the VISAT Help. For instance:

Imaging Tools
Bit Mask Overlay
The bitmask overlay tool is very useful to see the flags over a loaded band.
Analysis Tools
Spectrum Tool
Both reflectances and rectified reflectances are considered spectral bands. By default, they are all displayed together but a subset of these bands can be selected using the filter option.
Product/Band properties Tool
This tool provides detailed information and properties for the selected band
Visualization Tools
Open RGB Image View
This feature allows you to display a color image for the product by assigning three bands to the three RGB colors. Incidentally, assigning the reflectance_TOA_8, reflectance_TOA_5, reflectance_TOA_2 to the RGB bands usually creates nice looking pictures.