Date of Award
3-2016
Document Type
Masters Capstone Project
Degree Name
M.S. in Geographic Information Science
Organizational Unit
College of Natural Science and Mathematics, Geography and the Environment
First Advisor
Michael A. O'Neal
Second Advisor
Steven Hick
Keywords
Deforestation, Remote sensing, Climate modeling, Spectral mixture analysis, Surface air temperature, Stand density, Topographic shade, Geographic Information Systems (GIS), Washington
Abstract
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.
Copyright Date
3-10-2016
Copyright Statement / License for Reuse
This work is licensed under a Creative Commons Attribution-NonCommercial-No Derivative Works 4.0 International License.
Publication Statement
Copyright is held by the author. User is responsible for all copyright compliance.
Rights Holder
Monica R. H. Jasper
Provenance
Received from author
File Format
application/pdf
Language
English (eng)
Extent
43 pgs
File Size
2.0 MB
Recommended Citation
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.
https://digitalcommons.du.edu/geog_ms_capstone/70
Included in
Atmospheric Sciences Commons, Climate Commons, Geographic Information Sciences Commons, Other Environmental Sciences Commons, Other Forestry and Forest Sciences Commons, Remote Sensing Commons