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dc.contributor.advisorSingha, Kamini
dc.contributor.advisorWalvoord, Michelle A. (Michelle Ann)
dc.contributor.authorRey, David
dc.contributor.committeememberBradford, John
dc.contributor.committeememberBenson, David A.
dc.contributor.committeememberPrasad, Manika
dc.date.accessioned2020-06-07T10:16:33Z
dc.date.available2020-06-07T10:16:33Z
dc.date.submitted2020
dc.descriptionIncludes bibliographical references.
dc.description2020 Spring
dc.description.abstractArctic 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.
dc.format.mediumborn digital
dc.format.mediumdoctoral dissertations
dc.identifierRey_mines_0052E_11953.pdf
dc.identifierT 8933
dc.identifier.urihttps://hdl.handle.net/11124/174177
dc.languageEnglish
dc.publisherColorado School of Mines. Arthur Lakes Library
dc.relation.ispartof2020 - Mines Theses & Dissertations
dc.rightsCopyright of the original work is retained by the author.
dc.titleEvolving subsurface connectivity in arctic and alpine ecosystems : the impact of permafrost and seasonally frozen ground
dc.typeText
thesis.degree.disciplineGeology and Geological Engineering
thesis.degree.grantorColorado School of Mines
thesis.degree.levelDoctoral
thesis.degree.nameDoctor of Philosophy (Ph.D.)


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