Date of Award
Masters Capstone Project
M.S. in Geographic Information Science
College of Natural Science and Mathematics, Geography and the Environment
Michael A. O'Neal
Deforestation, Remote sensing, Climate modeling, Spectral mixture analysis, Surface air temperature, Stand density, Topographic shade, Geographic Information Systems (GIS), Washington
Changes in areal extent of land cover types may lead to alterations in the surface energy budget that contribute to anthropogenic climate forcing. This study examines the effects of deforestation in the Cascade Range on local temperature. Temperature sensors were installed in 14 forest stands, taking measurements for one year. Estimated tree age, circumference, and species were recorded to calculate stand density index. Satellite imagery was used to calculate shade fraction from spectral mixture analysis, which is a proxy for canopy structure and density. These data were used to construct seasonal cycles of temperature to model variation with stand density and elevation. Maximum daily temperatures were 3.6°C higher in clearcut than mature forests in summer and 2.6°C higher in winter.
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Monica R. H. Jasper
Received from author
Jasper, Monica R. H., "A Model of the Effects of Deforestation on Local Climate in the North Cascades" (2016). Geography and the Environment: Graduate Student Capstones. 70.