14C (Carbon-14) ages of Holocene lake drainage events on the North Slope of Alaska, 2019-2020 ...

Lakes are abundant features on coastal plains of the Arctic, providing important fish and wildlife habitat and water supply for villages and industry, but also interact with frozen ground (permafrost) and the carbon it stores. Most of these lakes are termed "thermokarst" because they form...

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Bibliographic Details
Main Authors: Farquharson, Louise, Jones, Benjamin, Kanveskiy, Mikhail, Gaglioti, Benjamin, Bergstedt, Helena, Hinkel, Kenneth
Format: Dataset
Language:English
Published: NSF Arctic Data Center 2021
Subjects:
Thermokarst lake
Drained lake basin
Permafrost
Hydrology
Carbon
Arctic
Alaska
Climate change
Ice
north slope
permafrost
Thermokarst
Online Access:https://dx.doi.org/10.18739/a2kd1qn05
https://arcticdata.io/catalog/view/doi:10.18739/A2KD1QN05
Description
Summary:Lakes are abundant features on coastal plains of the Arctic, providing important fish and wildlife habitat and water supply for villages and industry, but also interact with frozen ground (permafrost) and the carbon it stores. Most of these lakes are termed "thermokarst" because they form in ice-rich permafrost and gradually expand over time. The dynamic nature of thermokarst lakes also makes them prone to catastrophic drainage and abrupt conversion to wetlands, called drained thermokarst lake basins (DTLBs). Together, thermokarst lakes and DTLBs cover up to 80% of arctic lowland regions, making understanding their response to ongoing climate change essential for coastal plain environmental assessment. Dating the timing of lake drainage can improve our understanding of the causes and consequences of DTLB formation. This suite of 14C (Carbon-14) ages provides insight into the timing of lake drainage on the North Slope of Alaska across a range of ecosystems and surficial geology types. ...

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