SNAP Data Processors - MERIS L1b Fourth to Third Reprocessing Adaptation Processor Description |

### Processor Description

#### I/O Parameters Tab

##### Source Product Group

Name: Used to select the spectral source product. The source product shall contain spectral bands providing a source spectrum at each pixel. Use the ... button to open a data product currently not opened in the application.

##### Supported Envisat MERIS Source Products

The following Envisat MERIS source products are supported for IdePix classification:

- MERIS_RR__1P*.N1:
  Reduced Resolution Geolocated and Calibrated TOA Radiance (stripline)
- MERIS_FR__1P*.N1:
  Full Resolution Geolocated and Calibrated TOA Radiance (stripline)
- ENV_ME_1_RRG_*.SEN3:
  Reduced Resolution as above, but from 4th reprocessing
- ENV_ME_1_FRG_*.SEN31:
  Full Resolution as above, but from 4th reprocessing

For detailed product descriptions and file naming conventions see MERIS Product Handbook MERIS Product Handbook

For more detailed information on MERIS 4th reprocessing products, see the Release Notes Release Notes as starting point.

##### Target Product Group

Name: Used to specify the name of the target product.

Save to: Used to specify whether the target product should be saved to the file system. The combo box presents a list of file formats.

Open in SNAP: Used to specify whether the target product should be opened in the application. When the target product is not saved, it is opened automatically.

### Processing Parameters

No specific processing parameters are provided for the MERIS Reprocessing Adaptation Processor.

### The Processing Result

The target product contains all bands, tie point grids, flags and masks which are available in a corresponding ENVISAT MERIS L1b *.N1 product. Details of the adaptation procedure are given in the Algorithm Specification documentation.