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Extraction of Beach Landforms from DEMs
using a Coastal Management Expert System
Tony Moore, Kevin Morris, Grahame Blackwell
Plymouth Marine Laboratory,
Prospect Place, West Hoe,
Plymouth, Devon, PL1 3DH, UK
Tel: +44 (0) 1752 633408
Fax: +44 (0) 1752 633101
Email:
abmo@unixmail.nerc-pml.ac.uk
Steve Gibson
School of Computing,
University of Plymouth,
Drake Circus, Plymouth,
Devon, PL4 8AA UK
Tel: +44 (0) 1752 232541
Fax: +44 (0) 1752 232540
Presented at the second annual conference of GeoComputation ‘97 & SIRC ‘97, University of Otago, New Zealand, 26-29 August 1997
Abstract
This paper describes the use of a prototype coastal management
expert system, to facilitate the extraction of a
salient element of coastal landforms from a DEM derived
from stereo aerial photography. The system, COAMES
(COAstal Management Expert System), is currently under
development at Plymouth Marine Laboratory and the
University of Plymouth. The sub-landform to be extracted
is identified and isolated through use of "intelligent" ground
control points stored within COAMES’ object-oriented
data structure, in conjunction with geomorphological rules
and functions embedded in COAMES’ hierarchical knowledge
structure. The morphology of this extracted feature
is modelled using polynomial functions - this can be compared
with a similar feature extracted at a different time
to gain a picture of geomorphic feature development.
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