Index Catalog // ScholarsArchive@OSU

Controls on movement of selected landslides in the Coast Range and western Cascades, Oregon

Creator:: Wong, Bernard Bong-Lap
Abstract:: The movement characteristics of five landslides are compared and interpreted based on records of approximately 10-years duration. Condon landslide in the Oregon Coast Range has consistently exhibited brief (1 - 8 days) movement episodes in wet winter months, separated by long periods of no movement. The translatory movement is probably...
Resource Type:: Masters Thesis
Full Text:: underlying sedimentary rocks. From 1981 to 1990, annual movement averaged 109 mm, and individual events

Spatial and temporal patterns of fire in the forests of the central Oregon Coast Range

Creator:: Impara, Peter C.
Abstract:: Fire history and fire regime were interpreted from tree ring analysis of 4320 stumps at 178 sites in a 25 by 55 km area in the central Oregon Coast Range. A total of 27 fire episodes were identified in a 516 year period, with sizes estimated at 18 to 544...
Resource Type:: Dissertation
Full Text:: and review of my dissertation. This work was funded by cooperative agreement (No. PNW 93-0478

The use of surface energy balance models as a means to quantify changes in glacier mass balance : an application to the Collier Glacier

Creator:: Beedlow, Andrew Cody
Abstract:: This thesis presents the results of an investigation into the measured and modeled mass balance of the Collier Glacier, a small (0.70 km²), valley glacier located in the Oregon Cascade Range (44° 10' N, 121° 47' W). Here we present mass-balance measurements conducted for the 2009 and 2010 balance years...
Resource Type:: Masters Thesis
Full Text:: 3.1 Collier Glacier Study area relative to the Pacific Northwest (PNW

Understanding the impact of climate change on snowpack extent and measurement in the Columbia River Basin and nested sub basins

Creator:: Brown, Aimee Lyn
Abstract:: Shifting climate patterns in the Columbia River basin are affecting snow pack, and, as a result, stream flow throughout the region. In the Oregon Cascades, ever growing populations, and their associated activities, place increasing stress on an already over allocated hydrologic system. Political pressures, including the possibility of renegotiation or...
Resource Type:: Masters Thesis

Age structure, developmental pathways, and fire regime characterization of Douglas-fir/western hemlock forests in the central western Cascades of Oregon

Creator:: Tepley, Alan J.
Abstract:: Descriptions of the fire regime in the Douglas-fir/western hemlock region of the Pacific Northwest traditionally have emphasized infrequent, predominantly stand-replacement fires and an associated linear pathway of stand development, where all stands proceed along a common pathway until reset by the next fire. Although such a description may apply in...
Resource Type:: Dissertation
Full Text:: -mediated developmental pathways in Douglas-fir/western hemlock forests of the PNW

Spatial and temporal patterns of windthrow in the Bull Run Watershed, Oregon

Creator:: Sinton, Diana Stuart
Abstract:: Throughout the 20th century, windthrow has affected forests in the Bull Run watershed, a 26,500 ha basin that is the principal water source for the city of Portland, Oregon. Windthrow from storms in 1973 and 1983 was mapped into a geographic information system (GIS) and compared to a 1931 windthrow...
Resource Type:: Dissertation
Full Text:: agreement (No. PNW 92-0220) between the U. S. Forest Service, the City of Portland Water Bureau, and Oregon

Chronic coastal hazards and coastal construction setback modeling with Geographic Information Systems on Oregon's central coast

Creator:: Foisy, Jeffrey S.
Abstract:: With the current pressure for increased growth, the affects of climatic forcing events pose serious threats to Oregon's Coastal Communities. Mathematical methods have been implemented to establish setback distances for development adjacent to littoral cells. Using formulae developed by the Coastal Construction Setback Taskforce (CCST) under the Oregon Coastal Management...
Resource Type:: Capstone Project
Full Text:: erosion and flooding of low-lying areas (Komar et al.1997). While the entire Pacific Northwest (PNW

Past climate variability in southwestern Oregon and relationships with regional and hemispheric climate

Creator:: Ersek, Vasile
Abstract:: This dissertation presents the results of three studies that assessed climate variability on short and long timescales in western United States. The growth of carbonate formations in caves (speleothems) is used to infer the timing and amplitude of past climate variability. We first assess the controls on speleothem growth for...
Resource Type:: Dissertation
Full Text:: ). The seasonal and annual climate of the Pacific Northwest (PNW) is strongly influenced by atmosphere

Thirty-five years of forest succession in southwest Oregon : vegetation response to three distinct logging treatments

Creator:: Arthur, Aaron Stone
Abstract:: This study examined patterns and controls on 35-years of forest succession following logging in the 236 ha South Umpqua Experimental Forest within the Umpqua National Forest in southwestern Oregon. Prior to logging, the overstory in all three watersheds (~50% cover) was composed of Douglas-fir (30-40% cover), grand fir (2 to...
Resource Type:: Masters Thesis

Forest-meadow dynamics in the central western Oregon Cascades : topographic, biotic,and environmental change effects

Creator:: Rice, Janine M.
Abstract:: Montane meadows comprise a small area of the predominantly forested landscape of the Oregon Cascade Range. Tree encroachment in the last century in these areas has threatened a loss of biodiversity and habitat. Climate change in the coming century may accelerate tree encroachment into meadows, and exacerbate biodiversity loss. Multiple...
Resource Type:: Dissertation
Full Text:: ....................................................................................................... 109 4.5.1 Model Uncertainty

ScholarsArchive@OSU

Controls on movement of selected landslides in the Coast Range and western Cascades, Oregon

Spatial and temporal patterns of fire in the forests of the central Oregon Coast Range

The use of surface energy balance models as a means to quantify changes in glacier mass balance : an application to the Collier Glacier

Understanding the impact of climate change on snowpack extent and measurement in the Columbia River Basin and nested sub basins

Age structure, developmental pathways, and fire regime characterization of Douglas-fir/western hemlock forests in the central western Cascades of Oregon

Spatial and temporal patterns of windthrow in the Bull Run Watershed, Oregon

Chronic coastal hazards and coastal construction setback modeling with Geographic Information Systems on Oregon's central coast

Past climate variability in southwestern Oregon and relationships with regional and hemispheric climate

Thirty-five years of forest succession in southwest Oregon : vegetation response to three distinct logging treatments

Forest-meadow dynamics in the central western Oregon Cascades : topographic, biotic,and environmental change effects

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