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Bathymetry
Creation and Integration
Geologist Laurence Andriashek of the Ground Water
Group from the Alberta Geological Survey (AGS) has been researching
surficial sediments for the Beaver River Study Area. One of the primary
concerns of this research was determining the interactions between
surface water and ground water, specifically the relationship between
the deep and shallow water aquifers with surface water bodies.
 To
address this properly it was necessary to analyze bathymetry data
represented by lake bottom contours derived from depth soundings.
Maps Distribution Branch of the Alberta Sustainable Resource Development
stored the most up-to-date information as a repository of hard-copy
maps created by the Alberta Environment between 1960-1979.
In January 2003, GISmo Solutions Ltd embarked on a project to create
digital bathymetry data for 27 lakes within the Beaver River study
area. The first phase of this project addressed the reproduction of
bathymetry information from the hard copy maps into a properly geo-referenced
digital Geographical Information System (GIS) data set. Once contours,
lake elevations, and lake boundaries were validated, the second phase
integrated the bathymetry data into the Base Features 1:250K 25-meter
Digital Elevation Model (DEM).
Following the delivery of Beaver River bathymetry product, AGS initiated
a province-wide integration of remaining 146 lakes in the repository.
New project utilized the freely distributed Shuttle Radar Topography
Mission (SRTM) DEM for integration. This project was completed in
December 2004, and has produced a complete, up-to-date digital bathymetry
data set for Alberta.
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