Aerial photo of Sperry Glacier
Detailed Description
Aerial photo of Sperry Glacier, Digital Globe image taken 08/26/2016. Aerial imagery, like this photo of Sperry Glacier, is used to create digital elevation models (DEMs) used to extrapolate mass balance field measurements over the entire glacier.
Sources/Usage
Public Domain.
Digital Globe image
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Related Content
Mass Balance Methods - Measuring Glacier Change
Nearly all Earth's alpine glaciers are losing ice, usually expressed as loss of mass. Rates of mass loss for North American glaciers are among the highest on Earth (Gardner, 2013) and shrinking glaciers are often the most visible indicators of mountain ecosystems responding to climate change.