Processor Description - L3 Binning Initial Processor

The L3 Initial Processor creates an empty bin database at the desired location. It also defines all parameters used in the database update process:

• grid cell size
• geophysical parameter names
• bitmask expressions
• the binning algorithms and
• border coordinates.

The L3 Processor Processing Parameters tab

1. Bin-Database: Select the location of the bin database by either typing the database path into the text field or by pressing the file selection button to invoke a standard file dialog.
2. Resampling: Choose between binning and flux-conserving. When you switch the resampling mode the way the grid cell size is meassured changes, too. The binning resampling uses a sinusoidal equal area grid whereas the flux-conserving resampling uses an equal angle grid.
3. Grid cell size: In case of binning resampling the grid cell size is specified in kilometers. If the resampling method is set to flux-conserving the grid is specified by the number of bins per degree.
4. Max latitude: Enter the maximum latitude of the target product. All pixels above this limit are rejected during processing.
5. Min longitude: Enter the minimum longitude of the target product. All pixels below this limit are rejected during processing.
6. Max longitude: Enter the maximum longitude of the target product. All pixels above this limit are rejected during processing.
7. Min latitude: Enter the minimum latitude of the target product. All pixels below this limit are rejected during processing.
8. 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.
9. Expected L3 Product Size: Displays the estimated size of the final Level 3 product. Please note that this size may be significantly higher than the real disk size as the Level 3 processor dynamically chooses the minimal product size possible with the given set of input products.

The L3 Processor Bands tab

It is possible to process multiple bands from the input product at once.

Choose the geophysical bands to be binned in the band chooser . This is only possible if an input product has already been selected. Afterwards for each band the following parameters can be specified:

1. Valid Pixel expression: Type in a bitmask expression to be evaluated during the binning process. This field might be left empty - then no bitmask is taken into account and all pixels are processed. Please either type in the bitmask expression into the text field or invoke the bitmask expression editor by pressing the button to the right.
2. Aggregation algorithm: Select one of the available aggregation algorithms.
3. Weight coefficient: Enter the weight coefficient to be used during accumulation.

The L3 Initial Processor processing request file

The following table describes the L3 Initial Processor 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.