Introduction

Geomorphometrics are measures of the geometry, topography, shape or form of a terrestrial horizon and their change over time (after Turner, 2007). Geomorphometrics techniques have many applications, not only can they be used to help identify landform features through analysis of digital elevation model (DEM) elevation characteristics, but they may also be used in hazard modelling, access mapping and landscape evaluation for many purposes.

Demonstration

This demonstration uses 50m resolution DEM (1:50,000 OS Panorama) data for a 2km x 2km portion of the North Yorkshire Wolds.


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Please try out the geomorphometrics demonstration by selecting from the options below. This demonstration uses pre-processed results for speed, and results are available for most of the options below. If a result is not available, please try changing options, particularly the orthogonal comparison method option.

Algorithm Conditioner
This setting determines the conditioner applied to the data:

Algorithm Orthogonal Comparison Method
This setting determines the method used to compare orthogonal cells during the analysis:

Algorithm Grid Cell Resolution
This setting determines the coarseness at which the algorithm processes the data:
High (2 grid-cell)
Medium (4 grid-cell)
Low (8 grid-cell)

 

 

Notes

Welcome to the geomorphometrics techniques demonstration. Above you should be able to see a DEM image of part of the North Yorkshire Wolds. To view some of the results that can be obtained through geospatial processing of the DEM, select from the options to the right.

References and Further Information