Filters: Tags: {"type":"Landscapes","name":"arctic"} (X) > Categories: Publication (X)
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Snow conditions are extremely important to a wide range of hydrologic and ecosystem components and processes, including those related to surface energy and moisture stores and fluxes, vegetation, mammals, birds, and fish. The required snow datasets currently do not exist at the required spatial and temporal resolutions needed by end users such as scientists, land managers, and policy makers.
Categories: Publication;
Types: Citation;
Tags: Alaska CASC,
Arctic,
Arctic,
Landscapes,
Other Water,
Abstract (from ScienceDirect): Ice wedge polygons on the North Slope of Alaska have been forming for many millennia, when the ground thermally contracts in the winter and water fills in the cracks during the snowmelt season. The infiltrated water then freezes and turns into ice. In this paper we investigate temperature dynamics around the ice wedges and surrounding permafrost. A 2-D nonlinear heat equation with phase change is utilized to compute temperature across the ice wedge and surrounding area. Thermal properties of the ground material are estimated by assimilating temperature measurements in the center of ice wedge polygons. The developed finite element model is successfully validated using two analytical...
Categories: Publication;
Types: Citation;
Tags: Alaska CASC,
Arctic,
Glaciers and Permafrost,
Landscapes,
Water, Coasts and Ice
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