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Depth, ice thickness, and ice-out timing cause divergent hydrologic responses among Arctic lakes

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2015-11-11
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2015-11-18

Citation

LCC Network Data Steward(Point of Contact), Arctic Landscape Conservation Cooperative(administrator), Christopher D. Arp, PhD(Principal Investigator), 2015-11-11(Publication), Depth, ice thickness, and ice-out timing cause divergent hydrologic responses among Arctic lakes, http://arcticlcc.org/products/60e5ab68-0ae9-4b8d-8843-8e99c94a545e, https://www.sciencebase.gov/catalog/item/5a0ae5a9e4b09af898cb5fb7

Summary

Lakes are prevalent in the Arctic and thus play a key role in regional hydrology. Since manyArctic lakes are shallow and ice grows thick (historically 2 m or greater), seasonal ice commonly freezes tothe lake bed (bedfast ice) by winter’s end. Bedfast ice fundamentally alters lake energy balance and meltoutprocesses compared to deeper lakes that exceed the maximum ice thickness (floating ice) and maintainperennial liquid water below floating ice. Our analysis of lakes in northern Alaska indicated that ice-out ofbedfast ice lakes occurred on average 17 days earlier (22 June) than ice-out on adjacent floating ice lakes (9July). Earlier ice-free conditions in bedfast ice lakes caused higher open-water evaporation, 28% on average,relative [...]

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Arctic Landscape Conservation Cooperative(Data Owner)

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  • LC MAP - Landscape Conservation Management and Analysis Portal

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urn:uuid urn:uuid 60e5ab68-0ae9-4b8d-8843-8e99c94a545e

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languageeng

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