Evolving subsurface connectivity in arctic and alpine ecosystems: the impact of permafrost and seasonally frozen ground
Includes bibliographical references. 2020 Spring. Arctic and alpine ecosystems are experiencing increases in the ubiquity and severity of landscape level disturbances, and changes in the near-surface energy budget including rising air temperatures, ecological shifts, and perturbations in snow depth...
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Colorado School of Mines. Arthur Lakes Library
2020
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ftmountainschol:oai:mountainscholar.org:11124/174177 2023-05-15T14:44:35+02:00 Evolving subsurface connectivity in arctic and alpine ecosystems: the impact of permafrost and seasonally frozen ground Rey, David Singha, Kamini Walvoord, Michelle A. (Michelle Ann) Bradford, John Benson, David A. Prasad, Manika 2020-06-07T10:16:33Z born digital doctoral dissertations application/pdf application/zip https://hdl.handle.net/11124/174177 English eng eng Colorado School of Mines. Arthur Lakes Library 2020 - Mines Theses & Dissertations Rey_mines_0052E_11953.pdf T 8933 https://hdl.handle.net/11124/174177 Copyright of the original work is retained by the author. Text 2020 ftmountainschol 2022-03-07T21:25:37Z Includes bibliographical references. 2020 Spring. Arctic and alpine ecosystems are experiencing increases in the ubiquity and severity of landscape level disturbances, and changes in the near-surface energy budget including rising air temperatures, ecological shifts, and perturbations in snow depth and timing. These environmental changes are altering the distribution of seasonally and perennially (i.e. permafrost) frozen ground, with impacts on water and nutrient cycling. Presented work includes cross-scale field observations and numerical models that address the hydrologic impacts of spatial and temporal changes in frozen ground distribution. Specifically, observations and numerical models from Arctic and alpine ecosystems were used to: (1) assess near- and long-term changes in lake connectivity in Boreal lowlands; (2) quantify supra-permafrost talik formation in Alaska’s continuous permafrost zone in response to wildfire; and (3) examine the impact of seasonally frozen ground on snowmelt partitioning in a Colorado alpine headwater stream. Results from this work identify key hydrologic and thermal processes that are driving rapid change observed across Arctic and alpine ecosystems. Text Arctic permafrost Mountain Scholar (Digital Collections of Colorado and Wyoming) Arctic Talik ENVELOPE(146.601,146.601,59.667,59.667) |
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Open Polar |
collection |
Mountain Scholar (Digital Collections of Colorado and Wyoming) |
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ftmountainschol |
language |
English |
description |
Includes bibliographical references. 2020 Spring. Arctic and alpine ecosystems are experiencing increases in the ubiquity and severity of landscape level disturbances, and changes in the near-surface energy budget including rising air temperatures, ecological shifts, and perturbations in snow depth and timing. These environmental changes are altering the distribution of seasonally and perennially (i.e. permafrost) frozen ground, with impacts on water and nutrient cycling. Presented work includes cross-scale field observations and numerical models that address the hydrologic impacts of spatial and temporal changes in frozen ground distribution. Specifically, observations and numerical models from Arctic and alpine ecosystems were used to: (1) assess near- and long-term changes in lake connectivity in Boreal lowlands; (2) quantify supra-permafrost talik formation in Alaska’s continuous permafrost zone in response to wildfire; and (3) examine the impact of seasonally frozen ground on snowmelt partitioning in a Colorado alpine headwater stream. Results from this work identify key hydrologic and thermal processes that are driving rapid change observed across Arctic and alpine ecosystems. |
author2 |
Singha, Kamini Walvoord, Michelle A. (Michelle Ann) Bradford, John Benson, David A. Prasad, Manika |
format |
Text |
author |
Rey, David |
spellingShingle |
Rey, David Evolving subsurface connectivity in arctic and alpine ecosystems: the impact of permafrost and seasonally frozen ground |
author_facet |
Rey, David |
author_sort |
Rey, David |
title |
Evolving subsurface connectivity in arctic and alpine ecosystems: the impact of permafrost and seasonally frozen ground |
title_short |
Evolving subsurface connectivity in arctic and alpine ecosystems: the impact of permafrost and seasonally frozen ground |
title_full |
Evolving subsurface connectivity in arctic and alpine ecosystems: the impact of permafrost and seasonally frozen ground |
title_fullStr |
Evolving subsurface connectivity in arctic and alpine ecosystems: the impact of permafrost and seasonally frozen ground |
title_full_unstemmed |
Evolving subsurface connectivity in arctic and alpine ecosystems: the impact of permafrost and seasonally frozen ground |
title_sort |
evolving subsurface connectivity in arctic and alpine ecosystems: the impact of permafrost and seasonally frozen ground |
publisher |
Colorado School of Mines. Arthur Lakes Library |
publishDate |
2020 |
url |
https://hdl.handle.net/11124/174177 |
long_lat |
ENVELOPE(146.601,146.601,59.667,59.667) |
geographic |
Arctic Talik |
geographic_facet |
Arctic Talik |
genre |
Arctic permafrost |
genre_facet |
Arctic permafrost |
op_relation |
2020 - Mines Theses & Dissertations Rey_mines_0052E_11953.pdf T 8933 https://hdl.handle.net/11124/174177 |
op_rights |
Copyright of the original work is retained by the author. |
_version_ |
1766316083020562432 |