Influences and interactions of inundation, peat, and snow on active layer thickness

Atchley, Adam L.; Coon, Ethan T.; Painter, Scott L.; Harp, Dylan R.; Wilson, Cathy J.

doi:10.1002/2016GL068550

Influences and interactions of inundation, peat, and snow on active layer thickness

Journal Article · Wed May 18 00:00:00 EDT 2016 · Geophysical Research Letters

DOI:https://doi.org/10.1002/2016GL068550· OSTI ID:1260075

Atchley, Adam L. ^[1]; Coon, Ethan T. ^[1]; Painter, Scott L. ^[2]; Harp, Dylan R. ^[1]; Wilson, Cathy J. ^[1]

Los Alamos National Laboratory, Los Alamos New Mexico USA
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Climate Change Science Institute and Environmental Sciences Division

The effect of three environmental conditions: 1) thickness of organic soil, 2) snow depth, and 3) soil moisture content or water table height above and below the soil surface, on active layer thickness (ALT) are investigated using an ensemble of 1D thermal hydrology models. Sensitivity analyses of the ensemble exposed the isolated influence of each environmental condition on ALT and their multivariate interactions. The primary and interactive influences are illustrated in the form of color maps of ALT change. Results show that organic layer acts as a strong insulator, and its thickness is the dominant control of ALT, but the strength of the effect of organic layer thickness is dependent on the saturation state. Snow depth, subsurface saturation, and ponded water depth are strongly codependent and positively correlated to ALT.

View Accepted Manuscript (DOE)

Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Biological and Environmental Research (BER) (SC-23)

Grant/Contract Number:: AC05-00OR22725

OSTI ID:: 1260075

Alternate ID(s):: OSTI ID: 1304711

Journal Information:: Geophysical Research Letters, Journal Name: Geophysical Research Letters Journal Issue: 10 Vol. 43; ISSN 0094-8276

Publisher:: American Geophysical UnionCopyright Statement

Country of Publication:: United States

Language:: English

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Influences and Interactions of Inundation, Peat, and Snow on Active Layer Thickness: Modeling Archive

Dataset · Tue Sep 06 00:00:00 EDT 2016 · OSTI ID:1240734

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54 ENVIRONMENTAL SCIENCES
ALT sensitivity
active layer thickness
inundation and soil moisture
organic soil thermal properties
snow depth
thermal hydrology

Influences and interactions of inundation, peat, and snow on active layer thickness

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References (61)

Cited By (17)

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