Describing dynamic modeling for landscapes with vector map algebra in GIS

Wang, Xuyan and Pullar, David (2005) Describing dynamic modeling for landscapes with vector map algebra in GIS. Computers and Geosciences, 31 8: 956-967. doi:10.1016/j.cageo.2005.02.015

Author Wang, Xuyan
Pullar, David
Title Describing dynamic modeling for landscapes with vector map algebra in GIS
Journal name Computers and Geosciences   Check publisher's open access policy
ISSN 0098-3004
Publication date 2005-10
Sub-type Article (original research)
DOI 10.1016/j.cageo.2005.02.015
Volume 31
Issue 8
Start page 956
End page 967
Total pages 12
Place of publication Oxford, United Kingdom
Publisher Pergamon-elsevier Science Ltd
Language eng
Abstract A large class of applications that model physical processes use vector fields. This includes landscape processes that are naturally expressed using mathematics for two-dimensional vector fields. Geographical information systems (GIS) are a ubiquitous technology used not only for managing, analyzing and visualizing spatial data for landscapes, but also has the capability to perform landscape analysis and to compose models to address a wide range of problems. This paper proposes ways to extend data models in GIS to allow it to address an even wider range of problems that require the use of vector field representations and analysis operations. The paper describes a vector field data model, which relates well to the field data model commonly implemented in GIS using a raster data type, and demonstrates its application for landscape characterization and hydrological modeling in GIS. The main contribution of this paper is the definition of operations that are consistent with the theory for vector fields and may be implemented to manipulate rasters and multicomponent rasters in GIS. The implementation describes a computational environment that supports writing models using primitive operations that are part of a vector map algebra (VMA) and for modeling dynamic changes to mapped landscapes over time. (C) 2005 Elsevier Ltd. All rights reserved.
Keyword Dynamic modeling
Vector analysis
Map algebra
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

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Created: Fri, 28 Mar 2008, 15:30:53 EST