Chapter 4 Effects Of Yellowstone'S Unique Geothermal Landscape On Snow Pack

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Book Section: Chapter 4 Effects Of Yellowstone'S Unique Geothermal Landscape On Snow Pack

Abstract
Theme The unique concentration of geothermal areas in Yellowstone National Park moderates winter severity for large herbivores by providing areas of reduced snow accumulation and access to photosynthesizing plants year round. Consequently these areas concentrate large herbivores and influence associated ecological processes in winter. While the well-known, dramatic hydrothermal features have received the most attention, the more extensive and less obvious areas of geothermal influence, where warming sufficiently reduces or eliminates snow pack accumulation without precluding forage production, can be expected to exert the most significant influence on large herbivore dynamics. We extend our earlier foundations in remote sensing of a thermal emittance anomaly (TEA; W/m2) in Yellowstone to mapping of the geothermal heat flux (GHF; W/m2). This facilitates mapping of the extent of geothermal snow pack reduction using a spatial snow pack simulation model that is sensitive to GHF inputs. The result is a quantification of the degree to which geothermal activity enhances winter habitat for large herbivores by reducing snow pack.

Authors 
Fred G. R. Watson, Wendi B. Newman, Thor N. Anderson, Ryan E. Lockwood, Robert A. Garrott, P. J. White Robert A. Garrott and G. R. Watson Fred








Published 
Terrestrial Ecology, 2008





DOI 
10.1016/S1936-7961(08)00204-2


 

Citation

Fred G. R. Watson,Wendi B. Newman,Thor N. Anderson,Ryan E. Lockwood,Robert A. Garrott,P. J. White Robert A. Garrott,G. R. Watson Fred. 2008. Chapter 4 Effects Of Yellowstone'S Unique Geothermal Landscape On Snow Pack. (!) : Terrestrial Ecology. (!) p.