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Report: Surficial Mapping British Columbias Landforms to Support Groundwater Understanding, Phase 1: Vanderhoof Watershed Group
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This project is the first phase in a multi-phase project towards the development of simplified, unified and easy to understand surficial material mapping to support land use and water allocation decisions in the province.
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Author: Jennifer Todd and Deepa Filatow
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Date Published: Mar 2024
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Report ID: 62950
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Audience: Government and Public
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This report describes and compares three surficial material maps in B.C.: surficial geology, terrain, and soils mapping. A table was developed to explore the relationship between the common surficial material names in the various types of maps and to harmonize the surficial material terms and descriptors from these three surficial material maps. Methods were explored to amalgamate and refine surficial material information from the three mapping inventories into a harmonized surficial mapping inventory.
The Vanderhoof Watershed Group was selected to compile data, develop, and test methods for harmonizing existing surficial material maps. This area lacked provincial aquifer mapping when the project was initiated, had a variety of mapping inventories with patchy coverage, and had gaps in these map inventories. New mapping was completed to delineate surficial materials and apply the simplified categories and test efficiency of gap filling. This proved challenging as compiling background information, preparing stereo imagery, project planning, and reporting were time consuming. As such, simplified mapping did not provide sufficient efficiencies for gap filling. Despite these challenges, the common terms and closed legend was a useful outcome of this study that supports the second phase of the project to pursue use of machine learning algorithms for harmonizing surficial material mapping.
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