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:: records of approximately 10-years duration. Condon landslide in the Oregon Coast Range has consistently

Landslide occurrence in the Elk and Sixes River basins, southwest Oregon

Creator:: McHugh, Margaret H.
Abstract:: Timber management of coastal watersheds in southwest Oregon has been complicated by the need to protect anadromous fish habitat from accelerated stream sedimentation resulting from management activity. The rugged terrain of the Elk and Sixes River basins is underlain by the complex geological province of the Klamath Mountains, in which...
Resource Type:: Masters Thesis

Mechanics and movement of the Lookout Creek Earthflow

Creator:: Mills, Keith A.
Abstract:: The Lookout Creek Earthflow is located in the Cascade Mountain Range in western Oregon. The Cascade Mountains are mainly volcanic in origin, and deposits in and around the slide have a complex geomorphic history,, affected by glacial, mass movement, and fluvial processes. The currently moving land mass is about 1600...
Resource Type:: Masters Thesis

Landslide occurrence in the Blue River Drainage, Oregon

Creator:: Marion, Daniel A.
Abstract:: Rapid, shallow soil mass movements (landslides) are examined for a 6,000 ha managed forest area in the Oregon Western Cascades. Analysis of landslide occurrence considers the physical characteristics and frequency, the influence of clearcutting and road construction, and some resource impacts. Nonparametric statistical methods are employed to test the significance...
Resource Type:: Masters Thesis

Discriminating between landslide sites and potentially unstable terrain using topographic indices

Creator:: Appt, Jeremy
Abstract:: A landslide inventory, statistical analyses and a Geographic Information System (GIS) are used to analyze landslide sites and potentially unstable terrain in the Oregon Coast Range. The objectives are to evaluate the efficacy of locating landslide sites with topographic variables and discriminate the difference between sites where landslides have and...
Resource Type:: Masters Thesis
Full Text:: ) carried out a recent landslide inventory in the Oregon Coast Range. ODF carried out a systematic

Morphometric analysis of landslides and slope stability on the north shore of the John Day Reservoir, Columbia River, Oregon and Washington

Creator:: Woelke, Franziska
Abstract:: The John Day Reservoir, a large reservoir between the John Day and the McNary Dams on the Columbia River, must be lowered several feet below design level during salmon migration season in order to preserve anadromous fish habitat. This research assessed the north shore of the John Day Reservoir for...
Resource Type:: Masters Thesis

Probabilistic analysis and mapping of seismically induced landslide deformation in Oregon

Creator:: Sharifi Mood, Mahyar
Abstract:: Landslides are ubiquitous within the state of Oregon, imposing an annual estimated cost of more than $10 million. Weak, saturated soils at steep slopes combined with persistent rainfall throughout most of the year provide a dangerous environment for this natural disaster, particularly in western Oregon. This grim situation is intensified...
Resource Type:: Masters Thesis

Precipitation characteristics for landslide hazard assessment for the central Oregon Coast Range

Creator:: Surfleet, Christopher G.
Abstract:: Precipitation data from 1988-1995 for 13 rain gauges of the Department of Forest Engineering rain gauge network, and a longer precipitation record, 1976-1995, at Mapleton were analyzed. The objectives were to assess the spatial and temporal distribution of precipitation intensity and antecedent precipitation, and understand the role of these characteristics...
Resource Type:: Masters Thesis

Modeling slope stability uncertainty : a case study at the Andrews Experimental Forest

Creator:: Murillo, Michelle L.
Abstract:: A simple debris-slide model, employing a digital elevation model (DEM) and geological data, was used in a geographic information system (GIS) to map slope stability in the Andrews Experimental Forest, located in the western Cascade Range in Oregon, USA. To evaluate the contribution of error in elevation to the uncertainty...
Resource Type:: Masters Thesis
Full Text:: Range in Oregon, USA. To evaluate the contribution of error in elevation to the uncertainty of the

Influence of hillslope and instream processes on channel morphology of Esmond Creek in the Oregon Coast Range

Creator:: Dent, Elizabeth F.
Abstract:: Esmond Creek is a tributary to the Siuslaw River located in the Oregon Coast Range. It is 18 km in length and drains a watershed area is 48.9 km². Average channel gradient of the study reach is 0.9%. In 1988 a landslide occurred in the Esmond Creek watershed involving approximately...
Resource Type:: Masters Thesis
Full Text:: MORPHOLOGY OF ESMOND CREEK IN THE OREGON COAST RMGE INTRODUCTION Channel morphology is a function of the

ScholarsArchive@OSU

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

Landslide occurrence in the Elk and Sixes River basins, southwest Oregon

Mechanics and movement of the Lookout Creek Earthflow

Landslide occurrence in the Blue River Drainage, Oregon

Discriminating between landslide sites and potentially unstable terrain using topographic indices

Morphometric analysis of landslides and slope stability on the north shore of the John Day Reservoir, Columbia River, Oregon and Washington

Probabilistic analysis and mapping of seismically induced landslide deformation in Oregon

Precipitation characteristics for landslide hazard assessment for the central Oregon Coast Range

Modeling slope stability uncertainty : a case study at the Andrews Experimental Forest

Influence of hillslope and instream processes on channel morphology of Esmond Creek in the Oregon Coast Range

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