User Interface |

### User Interface

The OWT Classification processor can be invoked from the SNAP tool menu by selecting the OWT Classification command from the Processing / Thematic Water Processing menu. On the command line the OWT Classification processor is available by means of the Graph Processing Tool `gpt` which is located in the SNAP `bin` directory. Typing `gpt OWTClassification -h` displays further information.

#### I/O Parameters Panel

##### Source Product Group

Source product: Specify the source product. Any atmospherically corrected water spectra should work if it contains the wavelength necessary for the selected OWT-Type. The combo box presents a list of all products opened in SNAP. The user may select one of these or, by clicking on the button next to the combo box, choose a product from the file system.

##### Target Product Group

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

Save as: Used to specify whether the target product should be saved to the file system. The combo box presents a list of available file formats. The text field or the button next to it allow to specify a target directory.

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

#### Processing Parameters Panel

OWT Type: Select one of the available types from the predefined list. For a description of the types see the Algorithm Specification The OWT type defines which wavelengths are needed. The the maximum distance to the requested wavelength is 10 nm.

Reflectances prefix: Specifies the prefix of the reflectance bands which are used for processing. Only bands starting with this prefix will be considered as spectrum provider.

Input reflectance is: Specifies if the input reflectance is either radiance reflectances or irradiance reflectances (ESA compatible). For OLCI or MERIS chose IRRADIANCE_REFLECTANCES for MODIS use RADIANCE_REFLECTANCES.

Write input reflectances: Whether or not the input reflectances shall be copied into target product.