| Aspect (Bathymetry) |
Describes the azimuthal direction of the steepest slope through the points in the analysis window [20]
|
3×3 |
Spatial Analyst (ArcGIS 9.3) |
| Rugosity (Bathymetry) |
A measure of structural complexity represented by the ratio of surface area to planar area [24]
|
3×3 |
Benthic Terrain Modeller Tool for ArcGIS |
| Maximum curvature (Bathymetry) |
Describes the steepest curve of either plan or profile convexity through a defined cell neighbourhood [40]
|
3×3 |
ENVI 4.7 |
| Bathymetric Position Index (Bathymetry) |
Compares the elevation of each cell in a digital elevation model to the mean elevation of a specified neighbourhood around that cell [68]
|
Inner radius = 10, Outer radius = 10, Scale factor = 125 |
Benthic Terrain Modeller Tool for ArcGIS |
| Slope (Bathymetry) |
Describes the maximum change in elevation between each cell and cells in the analysis neighbourhood [20]
|
3×3 |
Spatial Analyst (ArcGIS 9.3) |
| Complexity (Bathymetry) |
Describes the rate of change in the bathymetry slope [20]
|
3×3 |
ENVI 4.7 |
| Red, Green and Blue bands of Hue, Saturation and Intensity (Backscatter mosaic) |
High and low frequency information of an image after application of high and low pass filters, producing three band images of Red, Green and Blue [43]. |
3×3 (high pass filter) and 11×11 (low pass filter) |
ENVI 4.7 |
| Homogeneity, Entropy and Correlation texture features (Backscatter mosaic) |
Texture features calculated from Grey Level Co-occurrence Matrices (GLCM) [44]
|
7×7 |
ENVI 4.7 |
