Change Assessment of the Columbia Icefield, Canadian Rocky Mountains

Authors: Adjoa Intsiful*, Mississippi State University, Shrinidhi Ambinakudige, Mississippi State University
Topics: Cryosphere, Canada
Keywords: Columbia Icefield, NSDI, Glacier, Landsat
Session Type: Guided Poster
Day: 4/4/2019
Start / End Time: 1:10 PM / 2:50 PM
Room: Roosevelt 3.5, Marriott, Exhibition Level
Presentation File: No File Uploaded

The Columbia Icefield is the largest ice field in the Canadian Rockies lying partly in the northwestern tip of Banff National Park and partly in the southern end of Jasper National Park. It is Canada’s largest and most visited Ice field and hosts 25 glaciers. Studies have shown these glaciers retreating gradually. Monitoring these glaciers from remote sensing platforms and techniques have become imperative because of the significant role they play as a water resource, being situated on a triple water divide. This study uses Glacier inventory boundaries from Global Land Ice Measurements from Space (GLIMS), seven satellite data from 1985 to 2018 from Landsat and aerial photographs within the study period to determine change in glacier extents and volume of the Columbia Icefield. We use various geospatial algorithms to extrapolate the trend of the 25 glaciers constituting the entire Icefield. Normalized Difference snow index and different band ratios were created to determine glacier boundaries between the different years of Data. Results indicated a significant change in both area and volume of the Columbian Icefield.
Keywords: Columbia Ice field, Glacier, NDSI, Landsat

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