2018 Bear Glacier Ice-dammed Lake Timelapse
This video shows the rise in water level at the ice-dammed lake on the northeastern trunk of Bear Glacier between June 2017 and July 2018. The water has risen steadily during this time. These photos are being gathered daily in concert with pressure transducer data in hopes of better understanding the natural processes associated with Bear Glacier’s hydrology and potential future glacial lake outburst flood (GLOF) events. For more information, please visit go.nps.gov/bearglacier. There is no sound in this video.
Video text:
High up on Bear Glacier is a lake dammed by the glacier's ice. When the dam releases, the lake drains to the proglacial lake in front of the Bear Glacier terminus, about seven miles downstream, leading to a rise in water level called a glacial lake outburst flood (GLOF). Though not annual events, these GLOFs tend to occur in late summer to early fall. We keep an eye on this ice-dammed lake so we can better understand these events and the risks they may pose in this popular spot.
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