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A Conceptual Geospatial Data Warehouse Model for Forest Information Management
Abstract
An architectural framework is developed for a GeoSpatial Data Warehouse (GSDW) for which a conceptual model is designed that accommodates the following dimensions: spatial (map object), temporal (time), agent (contractor), management (e.g. planting) and tree species (specific species) of the GSDW information. According to the GSDW model, spatial queries such as spatial selection, spatial projection, and spatial join are defined and incorporated along with other database operators having interfaces via the model. This GSDW model was implemented using data from the Malcolm Knapp Research Forest of the University of British Columbia (UBC). Based on cost function estimates, preliminary experimental results show that our view materialization of the GSDW model performs highly as compared to re-computation and intermediate methods.
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