The GMWest System
Consists of :
I.BioSIM Software
II.GMWest Geoprocessing Model
III.GMWest GIS Database
The system attempts to answer the following:
What is the probability of establishment of
gypsy moth for a specific location?
GMWest System Overview
• GMWest is a landscape risk assessment system that
evaluates the risk of establishment of the gypsy moth
through integration of gypsy moth life history requirements,
topography, historical and projected weather data, and host
species distributions.
I. BioSIM Software
• BioSIM software integrates gypsy moth life history
requirements, topography, and historical and projected
weather data to output a hazard of establishment map that
is used as an input to the GMWest Geoprocessing Model.
II. GMWest Geoprocessing Model
•The model consists of Input datasets (GIS layers including
the hazard map), a geoprocessing tool (a sequence of
operations to model and analyze probability of
establishment) and a new dataset (model output).
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•These 3 elements of the model are described in detail in the
following slides:
1. GMWest System: Input Datasets
a. Hazard Map (generated using BioSIM software)
Raster GIS Layer:
Hazard of Establishment
Probability Map
1. GMWest System : Input Datasets (cont.)
b. Vegetation Classification
(forest species 30-m resolution)
Generated By LEMMA using GNN Approach
Raster GIS Layer
Vegetation to species level
For more information see: www.fsl.orst.edu/lemma.
1. GMWest System: Input Datasets (cont.)
c. Urban Area Vector GIS layer
Vector GIS Layer
2. GMWest Geoprocessing Tool
The GMWest Geoprocessing Tool consists of four processes:
•Process 1 re-classifies the vegetation vector layer as host or non-host
and outputs a true-false raster dataset representing host and non-host
spatial coverage.
•Process 2 reclassifies the urban areas layer as a true-false raster
coverage, wherein all urban areas qualify as true for host species.
•Process 3 merges the host species true-false grid with the urban areas
true-false grid to create the all host species true-false grid.
•Process 4 multiplies the hazard map generated in BioSIM by the all
host species true-false grid and outputs a risk of establishment grid.
2. GMWest Geoprocessing Tool Diagram
III. GMWest GIS Database:
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Provides comprehensive spatial context for
anywhere in Oregon and Washington
Scalable, expandable and customizable
Consists of both vector and raster data in various
formats with associated metadata (for example):
• Basemap data– Vector data
• Scanned topographic maps – Raster data
• Satellite imagery and aerial photography- Raster data