Index Catalog // ScholarsArchive@OSU

A spatial model for studying population dynamics of the California Mojave Desert tortoise

Creator:: Nguyen, Linh Thu
Abstract:: A spatially explicit population model written in C++ programming language is used in this study examining the population dynamics of the Desert Tortoise (Gopherus agassizii) in the California Mojave Desert. The model is constructed with hexagonal divisions of space, and with one-year increments of time. Four thematic maps: vegetation, soil...
Resource Type:: Masters Thesis

Assessing the potential impacts of alternative landscape designs on amphibian population dynamics

Creator:: Rustigian, Heather L.
Abstract:: present a unique modeling approach to investigate the potential impacts of future land use alternatives on amphibian population dynamics in two agricultural watersheds in central Iowa. An individual-based spatially explicit population was used to predict the consequences of alternative landscape design and management for populations of four amphibian species. The...
Resource Type:: Capstone Project

Use of GIS to determine effectiveness of natural attenuation

Creator:: Sharma, Ritu
Abstract:: Louisiana Army Ammunition Plant (LAAP), located near Shreveport, Louisiana, is a government-owned contractor-operated plant. Its purpose is to manufacture, load and assemble ammunition items. Area P has been used over the past 40 years to dump explosive-laden wastewater into 16 unlined lagoons. In 1989 LAAP was placed on the National...
Resource Type:: Capstone Project

Distribution patterns of reptiles and amphibians in Puerto Rico

Creator:: Le, Minh Duc, 1973-
Abstract:: This study examined the question of whether a big island can be divided into many smaller islands with the same pattern of area-species curve as that of the complete island. To address this question, this study used data on the number and distribution of amphibians and reptiles on Puerto Rico...
Resource Type:: Masters Thesis

The mapping of buildable slopes in Reedsport and Sutherlin, Oregon: a model for determining percent slope in required city-level buildable lands inventories

Creator:: Finnen, Danny K.
Abstract:: Purpose The purpose of this project is to aid the Umpqua Regional Council of Governments as they try to identify buildable lands in Douglas County, Oregon particularly in the cities of Reedsport and Sutherlin. This project will help Reedsport upgrade its recently completed Buildable Lands Inventory and provide Sutherlin with...
Resource Type:: Capstone Project

Monitoring sand dune processes at the Oregon Dunes National Recreation Area : can pre-vegetated conditions be restored?

Creator:: Mitteager, Wendy Ann
Abstract:: The Oregon Dunes National Recreation Area is managed by the Siuslaw Forest division of the United States Forest Service (USFS). This area has gradually been overcome by vegetation since the 1950's, originating with the exotic European Beach Grass (Ammophila arenaria). The invasion of this exotic vegetation has resulted in a...
Resource Type:: Capstone Project

Comparing intercell distance and cell wall midpoint criteria for discrete global grid systems

Creator:: Gregory, Matthew Jay
Abstract:: Many diverse applications have begun to study processes and patterns at a global scale. To aid in this research, discrete global grid systems (DGGSs) are data models which enable environmental modeling, monitoring and sampling across the earth at a variety of spatial scales. A DGGS can be evaluated on a...
Resource Type:: Masters Thesis

The conceptual development and use of ecoregion classifications

Creator:: Brewer, Isaac
Abstract:: This thesis explores the genesis of the ecoregion concept, examines the conceptual development of ecoregion classification systems, investigates applications of ecoregion classification systems for a broad range of purposes, and discusses the prospects for the further evolution of this concept. An ecoregion is an area that exhibits patterns of homogeneity...
Resource Type:: Masters Thesis

Spatial patterns of anomalous runoff to precipitation ratios for watersheds within the contiguous United States arranged by level one ecoregions

Creator:: Pittman, Jason W.
Abstract:: Mean annual runoff to precipitation (R/P) ratios were generated for 966 watersheds within the contiguous United States. The watersheds were plotted using Arc View GIS and used as part of an overlay analysis with Level 1 U.S. ecoregions. The ratios were statistically evaluated to determine anomalous R/P conditions within the...
Resource Type:: Capstone Project

Locating villages in the floods : the use of RADARSAT imagery in the flood hazard management in Bangladesh

Creator:: Petry, Heather N.
Abstract:: Bangladesh lies almost entirely on the delta of three major rivers: the Padma (the Ganges), the Jamuna (the Brahmaputra), and the Meghna. A considerable portion of Bangladesh has been repeatedly devastated by floods associated with cyclonic storm surges along its coastal islands and riverine flooding along the rivers traversing the...
Resource Type:: Capstone Project

An assessment of fall chinook salmon (Oncorhynchus tschawytscha) spawning habitat for present and pre-impoundment river conditions in a section of the John Day Reservoir, Columbia River

Creator:: Sheer, Mindi B.
Abstract:: The Columbia River system in the Pacific Northwest is currently comprised of a series of reservoirs, resulting from regulation of river flow due to a series of hydroelectric dams. A return to pre-dam conditions might improve salmon (Oncorhynchus sp.) survival rates and increase migration efficiency. This study modeled both historic...
Resource Type:: Capstone Project

Development of a GIS for the Marys River Watershed for fish and wildlife analysis

Creator:: Callahan, Brady
Abstract:: GIS technology has reached a point where it can be utilized by nonprofessionals in a desktop environment. This paper reviews the implementation of a pilot project for developing a localized-natural resource GIS. The resulting GIS was custom designed to answer questions posed by fish and wildlife biologists who need to...
Resource Type:: Capstone Project

A map enhancement for terrain visualization under Night Vision Goggle compatible lighting systems

Creator:: Thompson, Wiley C.
Abstract:: For the Army aviator, Night Vision Goggle (NVG) flight in the tactical rotarywing profile is a very demanding, task saturated environment. Map navigation is just one of the many tasks that must be accomplished during flight. The dim, monochromatic lighting required for NVG flight alters map colors, decreases image detail...
Resource Type:: Capstone Project

Spatial distribution of understory vegetation in tree canopy gaps of the Pacific Northwest

Creator:: London, Sharon Gail
Abstract:: Understory vegetation in artificially created tree canopy gaps in the Pacific Northwest was studied to determine 1) variation in understory vegetation cover between gap edges and gap centers, as well as between control and treatment plots, 2) spatial patterns of biomass and difference in biomass patterns among plots, 3) individual...
Resource Type:: Masters Thesis

Sources and perceptions of controversy in establishing a protected area for biodiversity : a case study in the New River Area of Oregon

Creator:: Erickson, Dana C.
Abstract:: The process of land acquisition for the conservation of plants or wildlife habitat can raise controversial issues, issues often perceived differently by the individuals and groups involved. After the land acquisition process is completed, there is rarely an opportunity to analyze the differing perceptions of the issues and their relative...
Resource Type:: Capstone Project

Using a single-well push-pull test to estimate mass transfer rate parameters

Creator:: Kelley, Michael John
Abstract:: More efficient methods are needed for the in-situ evaluation of mass transfer parameters which describe the movement of solutes through aquifer material. The objective of this study was to develop a method for estimating diffusion rate and capacity coefficients using a single-well, "push-pull" tracer test. The method consists of the...
Resource Type:: Masters Thesis

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

Single and multiple rates of nonequilibrium diffusive mass transfer at the laboratory, field, and regional scales in the Culebra Member of the Rustler Formation, New Mexico

Creator:: Fleming, Sean W.
Resource Type:: Masters Thesis

Geology and paleoseismology of the Trans-Yamuna active fault system, Himalayan foothills of northwest India

Creator:: Oatney, Emily M.
Abstract:: Satellite image interpretation, geologic mapping, and paleoseismic trenching are used to investigate the Trans-Yamuna active fault system in the northwestern Doon Valley of the Indian Himalayan foothills. This east-west fault system is subparallel to and crosses the Main Boundary thrust near the structural transition from the Nahan salient to the...
Resource Type:: Masters Thesis

Storm-induced mass wasting in forested areas: conditions and characteristics for three Western Oregon study sites

Creator:: Robben, Joshua L.
Abstract:: Much of the rich forestlands of Oregon are subject to frequent mass wasting events, resulting in severe environmental and economic damages. Extensive research has shown that this landslide hazard is often exacerbated by many management activities. Following a severe storm event which triggered thousands of landslides, the Oregon Department of...
Resource Type:: Capstone Project

The impact of land management decisions on dune processes on the Clatsop Plains: a case study of Camp Rilea, Oregon

Creator:: Flitcroft, Rebecca L.
Abstract:: This project explores the impact of land use decisions on dune processes at the Oregon National Guard's Camp Rilea. located on the north coast of Oregon. It used a combined analysis of historical and modern data sources to assess the impact of land use practices. Historical sources including the journals...
Resource Type:: Capstone Project

Seasonal snowcover dynamics beneath boreal forest canopies

Creator:: Link, Timothy E.
Abstract:: The accurate simulation of snowpack deposition and ablation beneath forested areas is confounded by the fact that the vegetation canopy strongly affects the snow surface energy balance. The canopy alters the radiation balance of the snowcover, and reduces the wind speed at the snow surface. Data collected as part of...
Resource Type:: Masters Thesis

Hydrothermal alteration of a supra-subduction zone ophiolite analog, Tonga, Southwest Pacific

Creator:: Kelman, Melanie C.
Abstract:: The basement of the Tonga intraoceanic forearc comprises Eocene arc volcanic crust formed during the earliest phases of subduction. Volcanic rocks recovered from the forearc include boninites and arc tholeiites, apparently erupted into and upon older mid-oceanic ridge tholeiites. Rock assemblages suggest that the forearc basement is a likely analog...
Resource Type:: Masters Thesis

Airborne videography as a classification and validation technique for Landsat TM-based vegetation mapping

Creator:: Barrett, Charley, 1965-
Abstract:: The Oregon Department of Fish and Wildlife's (ODFW) Ecological Analysis Center (EAC) is in the process of creating, from Landsat Thematic Mapper (TM) imagery, a vegetation map of Oregon that will meet the latest standards set by the National Gap Analysis Program. Since field verification is often expensive and by...
Resource Type:: Masters Thesis

Spatial changes in alpine treeline vegetation patterns along hiking trails in Glacier National Park, Montana

Creator:: Klasner, Frederick L.
Abstract:: Sequential aerial photography was used to identify effects of hiking trails on the spatial distribution of subalpine fir (Abies lasiocarpa) habitat at alpine treeline. Vegetation change over a 46 year period was compared along trails relative to areas without trails, at five study sites in the McDonald Creek drainage of...
Resource Type:: Capstone Project

Evaluation of a basic GIS for mapping and monitoring cultural resources at the River's End Ranch, Lake County Oregon

Creator:: Marker, Mason K.
Abstract:: The use of Geographic Information Systems (GIS) is rapidly expanding in almost every field of inquiry. The field of Archaeology is also learning to use GIS to improve both initial data collection in the field and data analysis in the lab. This paper evaluates the usefulness of the GIS software...
Resource Type:: Capstone Project

Lithofacies, stratiography, and geology of the middle eocene type cowlitz formation and associated volcanic and sedimentary units, Eastern Willapa Hills, southwest Washington

Creator:: Payne, Charles William
Abstract:: Stratigraphic measurement of the 1,238-rn thick Cowlitz Formation in the southwest Washington type section along Olequa and Stillwater creeks reveals complex facies succession of wave- to tide-dominated deltaic sequences. The underlying, 625-rn thick upper member of the McIntosh Formation (as mapped by Wells, 1981) is composed of two units: a...
Resource Type:: Masters Thesis

A resource classification and vegetation change analysis of the Jackson-Frazier Wetland, Benton County, Oregon

Creator:: Jones, Lisa D.
Abstract:: Benton County established the Jackson-Frazier Wetland as a park in 1992. My project was undertaken to assist Benton County Parks in managing the wetland. The project contains two elements: a GIS and a vegetation change analysis from 1936 to 1994. GIS coverages created in ARC/INFO were: 1) the course of...
Resource Type:: Capstone Project

Subsurface structural evolution along the northern Whittier fault zone of the eastern Los Angeles basin, Southern California

Creator:: Herzog, David W.
Abstract:: The Whittier fault forms the central part of a fault system extending from the East Montebello fault at Whittier Narrows to the Elsinore fault, which is traced as far as the Mexican border. The Whittier fault forms a restraining bend in this fault system, resulting in uplift of the Puente...
Resource Type:: Masters Thesis

The use of GIS in the analysis and prediction of available salmon habitat in an Oregon coastal stream

Creator:: Newton, Ann M.
Abstract:: Because of declines in salmon populations in recent years, the health of salmon habitat, in particular, is the focus of many resource agencies. The objective of this study is to use GIS to predict the location of suitable habitat. With data from an extensive set of stream surveys, GIS was...
Resource Type:: Capstone Project

Small circle subdivision method for development of global sampling grid

Creator:: Song, Lian
Abstract:: Modern environmental monitoring and modeling requires a good global grid system for survey sampling and accurate, spatially complete data collection of relevant environmental phenomena. A prime requirement for the global grid system is that the global sampling grids be regular and equal in area and have minimal shape distortion. None...
Resource Type:: Masters Thesis

An assessment of a Stream Reach Inventory and Channel Stability Evaluation : predicting and detecting flood-induced change in channel stability

Creator:: Morét, Stephanie L.
Abstract:: Pre-flood (1995), and post-flood (1996) channel stability surveys were conducted on 22 reaches along Oak Creek, Benton County, Oregon in an effort to note if the flood of February 1996 altered the channel and if the channel stability survey that was being used accurately predicted the channels resistance to change...
Resource Type:: Masters Thesis

Geographic Information Systems and rural land use analysis : an evaluation of alternative data sources

Creator:: Mickaelson, Nels E.
Abstract:: A Geographic Information System (GIS) can be a powerful tool for solving land use planning problems. The synthesis, analysis, and depiction of spatial data make it a valuable tool for land use planners. A primary issue with GIS is the cost and time required to develop a functional system. One...
Resource Type:: Capstone Project

Resource applications of Geographic Information Systems: the development of the roads layer for the Siuslaw National Forest

Creator:: Cogswell, Megan L.
Abstract:: The U.S. Forest Service has been actively using new information technologies since the formation of the agency. Currently forests are using Geographic Information Systems (GIS) for mapping, data storage, modeling, and spatial analysis. The Siuslaw National Forest has an active GIS with many data layers. A project to correct the...
Resource Type:: Capstone Project

Multiple perspectives on biodiversity in the Mid-Willamette Valley, Oregon

Creator:: Hummon, Cheryl
Abstract:: Biodiversity has become an important focus of ecological and wildlife research. However, the social aspects of biodiversity policy and regulations, specifically the public's perspectives and values about biodiversity, have not been adequately considered. This study examines the range of opinion about biodiversity of six groups that are potentially affected by...
Resource Type:: Capstone Project

Applications of multi-media cartography in Klamath Basin restoration

Creator:: Wayne, Christopher
Abstract:: The Klamath Basin of Oregon and California has been the scene of extensive ecosystem restoration activities in recent years. The need for restoration is based on changes in land use that have adversely affected water quality and wildlife habitat. Many different kinds of restoration projects are occurring at many different...
Resource Type:: Capstone Project

The effects of hillslope and fluvial processes on particle size of the stream bed at the watershed, reach and within-reach scales in a fifth-order mountain stream

Creator:: Lambert, Beth C.
Abstract:: This study addressed the effects of hilislope and fiuvial processes on spatial patterns of stream bed particle size at the watershed, reach and within-reach scales. The study was conducted in Lookout Creek watershed, a fifth-order, 64 km2 basin in the Western Cascades mountains of Oregon. Stream bed particle size was...
Resource Type:: Masters Thesis

An evaluation of the resources of the Mosquitia Region of Honduras by means of Remote Sensing and GIS

Creator:: Torres, Juan Carlos
Abstract:: The Mosquitia Region of Honduras is part of the largest wilderness area in Central America. In terms of biodiversity the area is rich in ecosystems including pine savannas, tropical rain forests, and wetlands. These ecosystems are rich in millions of species including rare and endangered. Honduras faces an economic, social,...
Resource Type:: Capstone Project

Partitioning of rare earth and high field strength elements between pargasitic amphibole and silicate melts

Creator:: Hilyard, Mark D.
Resource Type:: Masters Thesis

Crustal structure of the Queen Charlotte Transform Fault Zone from multichannel seismic reflection and gravity data

Creator:: Scheidhauer, Maren
Abstract:: The Queen Charlotte Fault system is a segment of the North America - Pacific plate boundary. From 45 Ma - 5 Ma, plate motion has been primarily translational. Since 5 Ma, transpression has been the dominant mode of interaction. The plate boundary west of the Queen Charlotte Islands is characterized...
Resource Type:: Masters Thesis

Sediment provenance and transport on the Siberian Arctic shelf

Creator:: Mammone, Kerry Anne
Resource Type:: Masters Thesis

Entrainment, transport, and deposition of large woody debris in streams : results from a series of flume experiments

Creator:: Braudrick, Christian A.
Abstract:: Although there has been extensive research on the geomorphic and ecologic role of large woody debris (LWD) in streams, the dynamics of LWD in streams are poorly known due to various measurement difficulties during floods. In this thesis I present the results of two flume experiments on the dynamics of...
Resource Type:: Masters Thesis

A TM-based hardwood-conifer mixture index for closed canopy forests in the Oregon Coast Range

Creator:: Maiersperger, Thomas K.
Abstract:: The purpose of this study was to develop, implement, and test methods for quantifying the relative proportion of hardwood and conifer cover from Thematic Mapper (TM) imagery. The research was focused on closed canopy forests in the Oregon Coast Range, where hardwood, conifer, and mixed stand conditions are prevalent. Based...
Resource Type:: Capstone Project

The development of a Geographic Information System (GIS) for the Greenbelt Land Trust of Corvallis, Oregon

Creator:: Scarlett, Desiree
Abstract:: The purpose of this project, therefore, is to develop a GIS for a small geographical area that is currently of high priority to the GLT. The development of this GIS will be documented in a sequential fashion, so that it may serve as a framework for future endeavors. This paper...
Resource Type:: Capstone Project

Interactive mapping on the World Wide Web

Creator:: Musser, Karl
Abstract:: The World Wide Web is a promising new media for cartography. It allows the creation of interactive maps that can be accessed by the general public. There is a wide variety both in methods used and in the overall quality of current Web sites. This report reviews the state of...
Resource Type:: Capstone Project

Surface-subsurface facies and distribution of the Eocene Cowlitz and Hamlet formations, northwest Oregon

Creator:: Robertson, Christina Lynn
Abstract:: Since 1979, over $114 million of natural gas has been produced at the Mist Gas Field, currently the only commercial gas field in the Pacific Northwest. In the Mist Gas Field, the sandstone-dominated Clark and Wilson member of the upper Eocene Cowlitz Formation is the reservoir and the overlying upper...
Resource Type:: Masters Thesis

Accuracy of community-based spatial data collection in a GIS

Creator:: Wood, Matthew N.
Abstract:: Training high school students to conduct field mapping and data collection of wildlife habitat on public lands produces important data for local government geographic information systems and introduces students to the field of geography. However, the positional accuracy of the spatial data is important for use in a GIS, as...
Resource Type:: Capstone Project

Production of an animated cartography sample for teaching and instruction, with musings on the nature and usefulness of animated maps

Creator:: Whaley, Kristine A.
Abstract:: Animated cartography is still a new field. It has been experimented with for years, but it has not gained general usage except partially in use by the news media. Nevertheless, certain subjects cry out for displaying the patterns of movement over time, such as historical patterns of migration and settlement,...
Resource Type:: Capstone Project

Spatial and temporal trends in bed material and channel morphology below a hydroelectric dam complex, Deschutes River, Oregon

Creator:: McClure, Ellen M.
Abstract:: River regulation imposes changes in the supply of sediment and the frequency of competent flows. As a result, impounded rivers often exhibit downstream changes in channel processes, particle size, and morphology. The magnitude of change in competent flow frequency and sediment load together can be used to predict the pattern...
Resource Type:: Masters Thesis

The 1993, Scott Mills aftershock sequence : moment tensor inversion and joint hypocenter determination

Creator:: Schurr, Bernd D.
Resource Type:: Masters Thesis

Deterministic landslide stability analysis: an example from NW Oregon

Creator:: Lumban-Tobing, Pago
Abstract:: A slope stability map is created for the Astoria Basin, northwestern Oregon. The stability analysis is based upon a topographically based model, TOPOG model. The model predicts the occurrence of subsurface water-logging which reduces the shear-strength of a slope-profile. Simply stated, subsurface saturated zones occur wherever the local drainage flux...
Resource Type:: Capstone Project

Bulldozer blades and colliding submarine mountain chains : constraints on central Oregon convergent margin tectonics from magnetics and gravity

Creator:: Fleming, Sean W.
Abstract:: Magnetic and gravity modelling was completed along two E-W transects offshore central Oregon. These models indicate that the backstop-forming western edge of the Siletz terrane has a seaward dip of approximately 40° to 49° at 44°48'N, shallowing to ~28° at 44°1 1 'N. This is a well-determined result, given available...
Resource Type:: Masters Thesis

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

Geographic Information System (GIS) resource inventories: the Marys River Project

Creator:: Chapman, Shannen S.
Abstract:: The Greenbelt Land Trust (GLT) (a grass-roots conservation group in Oregon) is interested in a conservation plan for the Marys River Corridor. To facilitate this effort, a resource inventory was required and a Geographic Information System (GIS) data base used to compile the inventory (called the Marys River Project (MRP))....
Resource Type:: Capstone Project

Estimating the impact of community use of the Mavuradonha Wilderness in Zimbabwe

Creator:: Armentrout, Courtney L.
Abstract:: Legislated wilderness, first created in the United States with the Wilderness Act of 1964, is being more widely established internationally. The Mavuradonha Wilderness Area in Zimbabwe is the first wilderness set up to be managed by the local community. Because of the importance of both conservation and rural development goals...
Resource Type:: Capstone Project

Evaluating a Field Automation Geographic Information System for environmental and facility management utilizing mobile computing, videography, and the global positioning system

Creator:: Whelan, Nathaniel L.
Abstract:: Field Automation is an evolving set of geographic information system (GIS) technologies, including mobile computing and the global positioning system, addressing operational and environmental applications in the field. This research involves designing, developing, implementing, and evaluating an environmental and facility application field automated GIS. The Camp Rilea National Guard base,...
Resource Type:: Capstone Project

Environmental correlates of freshwater fish species richness in Oregon

Creator:: Rathert, Daniel E.
Abstract:: Native freshwater fish biodiversily is imperiled in Oregon with 36 species or sub-species listed by the State of Oregon as sensitive, threatened, or endangered, and 9 species or sub-species listed as endangered or threatened under the federal Endangered Species Act. Understanding and managing biodiversity is critical to its conservation. Using...
Resource Type:: Capstone Project

Finite difference wavefield modeling of large-aperture data from the 1993 Mendocino Triple Junction Seismic Experiment

Creator:: Lendl, Christof
Abstract:: This thesis presents elastic finite difference simulations of two dimensional wavefield propagation for line-9, recorded during the 1993 part of the multi-institutional, multi-year Mendocino Triple Junction (MTJ) Seismic Experiment. Line-9 is a high-resolution, large-aperture seismic profile oriented in north-south direction, extending from the subduction regime north of the MTJ to...
Resource Type:: Masters Thesis

Structure and shortening of the Kangra and Dehra Dun reentrants, Sub-Himalaya, India

Creator:: Powers, Peter M.
Abstract:: Surface-geology, oil-well, seismic-reflection, and magnetostratigraphic data are integrated to evaluate structural style and shortening rate at the Himalayan front (Sub-Himalaya) of northwest India. The Sub-Himalaya, between the Main Boundary thrust and the Himalayan Frontal fault, is the actively deforming front of the Himalaya. At certain locations, the Himalayan Frontal fault...
Resource Type:: Masters Thesis

The mapping of eelgrass in Willapa Bay, WA and an evaluation of coastal change analysis program mapping guidelines

Creator:: Hazen, Christopher J.
Abstract:: The National Oceanic and Atmospheric Administration (NOAA) Coastal Change Analysis Program (C-CAP) is developing a nationally standardized database on landcover and habitat change in the coastal regions of the United States. The Willapa Bay eelgrass mapping project was granted to the Columbia River Estuary Study Task force (CREST) of Astoria,...
Resource Type:: Capstone Project

Identifying potential groundwater problems areas in western Marion County using a Geographic Information System

Creator:: Beighle, Jackson K.
Abstract:: The main objective of the study was to identify potential groundwater problem areas in Western Marion County using a geographic information system (GIS) and the Oregon Water Resources Department's (OWRD's) well log database (see figure 1). Potential groundwater problem areas were identified based on their mean static water level. According...
Resource Type:: Capstone Project

Monitoring individual particle transport in a gravel bedded stream using a passive radio transponder system, Corvallis, Oregon

Creator:: Childers, Elayne S.
Abstract:: Gathering empirical data on the factors and processes affecting bedload transport in the field is difficult. This project conducted during the winter of 1996 field tested a new passive method of positively tracking individual particle movement. The project was conducted in Oak Creek, a gravel bedded stream, located in Corvallis,...
Resource Type:: Capstone Project

Lower and Middle Devonian carbonate-platform and outer-shelf-basin deposits flanking Railroad Valley, Nevada

Creator:: Nelson, Storr L.
Abstract:: Lower and Middle Devonian strata crop out on the former stable carbonate platform that existed in the Quinn Canyon Range, through the carbonate shelf edge in the Pancake Range, to the carbonate slope and outer-shelf basin in the Reveille Range. The strata of the Reveille Range record a transition from...
Resource Type:: Masters Thesis

Geology, structure, and tectonic history of the Tualatin Basin, northwestern Oregon

Creator:: Popowski, Thomas Allan
Abstract:: The northwest-trending Neogene Tualatin basin in northwestern Oregon is a pull-apart basin with approximately 750 m of post-middle Miocene structural relief. Gently tilted uplands capped by Columbia River Basalt Group surround the synclinal basin on all sides. Integrated gravity, aeromagnetic, and seismic reflection data indicated that the basin is underlain...
Resource Type:: Masters Thesis

Spatial patterns of early forest succession following harvest in Lookout Creek Basin, OR

Creator:: Nesje, Alissa M.
Abstract:: The general objective of this project was to test a method to document rates and pathways of early succession and investigate potential predictive factors on a landscape to regional scale. The method incorporates remote sensing, vector Geographic Information Systems (GIS), and raster GIS modeling. Similar projects have been conducted elsewhere...
Resource Type:: Capstone Project

River restoration: active vs. passive restoration efforts, Alder Creek example

Creator:: Keating, Stephen
Abstract:: The practice of river and stream restoration has increased with heightened environmental concerns and awareness. Many of these projects use structural modifications in an attempt to mimic natural landscapes. These structural modifications represent an active approach to river and stream restoration. Active restoration projects are well funded and extensively constructed....
Resource Type:: Capstone Project

A georeferenced digital image analysis of micro-topographic patterns within the Willamette Floodplain Research Natural Area, W. L. Finley National Wildlife Refuge

Creator:: Anderson, Karen L.
Abstract:: The present day vegetation pattern of the Willamette Valley is a result of a long past of human alteration of the landscape. Beginning with aboriginal burning of the grasslands to present day land uses, the vegetation of the valley has been affected by anthropogenic activity. Wet prairie is a vanishing...
Resource Type:: Capstone Project

Habitat quality and assessing risks to avian biodiversity

Creator:: Barczak, Mary J.
Abstract:: Models that assess the risk to biodiversity from landscape change can help communities prioritize planning decisions. Accurate representation of the ecology and life history traits of species is necessary. This study introduces the use of habitat quality in a biodiversity risk model to determine the significance of habitat quality when...
Resource Type:: Masters Thesis

Late Cenozoic tectonics of the Yubari Fold and Thrust Belt of central Hokkaido and implications for opening of the Sea of Japan

Creator:: Crenna, Paul A.
Resource Type:: Masters Thesis

Non-Regulatory Techniques for Fish and Wildlife Habitat Protection on Private Lands

Creator:: Malouf, Beth
Abstract:: A survey was developed for the Oregon Department of Fish and Wildlife to collect information about non-regulatory fish and wildlife habitat programs in nine states (Alaska, California, Florida, Maine, Minnesota, Montana, Pennsylvania, Texas and Vermont). Non-regulatory programs are voluntary and offer incentives to landowners who are interested in protecting or...
Resource Type:: Capstone Project

The spatial location and temporal frequency of storm fronts along the Pacific Coast between 35 and 55 degrees north latitude during the period 1973-1994

Creator:: Barnett, Steven J.
Abstract:: Research Questions: 1) What are the characteristics of storm location and frequency that distinguish interannual forcing events, (ENSO periods) for the northwest Pacific Coast? 2) Are there differences in the spatial and temporal characteristics of storm events, (location and frequency), between interannual forcing periods and annual average periods? 3) Are...
Resource Type:: Capstone Project

User fees: issues and policy on Washington state public lands

Creator:: Caudill, David S.
Abstract:: Outdoor recreational activities on public lands have increased dramatically in the past few decades. Americans are logging millions of recreational visitor days (RVD's) participating in activities such as hiking, biking, wildlife viewing, photography and many others. This increased participation though is having detrimental effects on these lands and the agencies...
Resource Type:: Capstone Project

An ecological assessment of riparian land-use regulation, Lane County, Oregon

Creator:: Verret, Gregory Joseph
Abstract:: Riparian areas contribute to numerous ecological-maintenance functions and so are often the focus of protection efforts by land and resource management agencies. The riparian land-use regulations of one jurisdiction, Lane County, Oregon, are assessed for effectiveness in protecting ecological functions. Evaluation of the current condition of five elements of riparian...
Resource Type:: Capstone Project

Geologic evolution of the Duck Creek Butte eruptive center, High Lava Plains, southeastern Oregon

Creator:: Johnson, Jenda A.
Resource Type:: Masters Thesis

Evolution of jasperoid and hydrothermal alteration at Veteran Extension in the Robinson (Ely) porphyry copper district, Nevada

Creator:: Maher, David J., (David Joseph), 1969-
Resource Type:: Masters Thesis

Forestry herbicide use on private forest lands in Lincoln and Benton County Oregon, 1991-1994

Creator:: Godino, John Alessandro
Abstract:: The use of phenoxy herbicides is an established practice in industrial forestry, particularly in the Pacific Northwest. Forestry herbicide use in this region has often been controversial. To better understand the spatial patterns of herbicide use and the potential for human health and environmental impacts, a landscape level perspective is...
Resource Type:: Capstone Project

Shear-wave anisotrophy across the Cascadia Subduction Zone from a linear seismograph array

Creator:: Fabritius, R. Axel
Resource Type:: Masters Thesis

Videographic and GPS techniques for monitoring active glacial surge: Bering Glacier, Alaska

Creator:: Thatcher, P. Anthony
Abstract:: Aerial videography in combination with GPS were used to monitor the active surge of Alaska's Bering Glacier. The large aerial extent of the study area and the unpredictable weather in coastal Alaska required innovative techniques to be used in order to successfully monitor the surge environment. A portable aerial videographic...
Resource Type:: Capstone Project

Issues in the design of GIS databases for biodiversity assessments

Creator:: Minotti, Priscilla Gail
Abstract:: National and international organizations are developing spatial databases to assess the distribution of Biodiversity using geographic information systems (GIS). Currently, there are no guidelines or standards for building GIS databases for biodiversity assessment because database design is discipline-dependent and most biodiversity disciplines lack spatial traditions. The present research analyzes the...
Resource Type:: Capstone Project

Modeling the Laurentide Ice Sheet through the last deglaciation

Creator:: Licciardi, Joseph M.
Resource Type:: Masters Thesis

Ecological survey and interpretation of the Willamette Floodplain Research Natural Area, W.L. Finley National Wildlife Refuge, Oregon

Creator:: Streatfeild, Rosemary Welch
Abstract:: The purpose of this study was to: (1) evaluate land use and vegetation history of the Willamette Floodplain Research Natural Area; (2) characterize present day vegetation; (3) evaluate the relation of vegetation to environment, and (4) establish a baseline dataset for future trend analysis in order that response of different...
Resource Type:: Masters Thesis

Changes in mass of Collier Glacier, Oregon, 1910-1994

Creator:: McDonald, Gregory D. (Gregory Douglas), 1962-
Abstract:: A change to a warmer, drier climate beginning as early as 1900 was responsible for triggering a dramatic, rapid retreat of Collier Glacier, Oregon, between 1924 and 1940. Although there was a dramatic decrease in precipitation contemporaneous with this observed "step-function" response of mass loss, it is unclear if climate...
Resource Type:: Masters Thesis

Mapping from airphotos to determine disturbance in streamside land use

Creator:: Ely, Jane F.
Abstract:: High resolution land use/land cover information from stream riparian areas is useful in understanding instream biotic assemblages, and is often not available for geographical research. A classification system was developed which provides the types of information about the riparian buffer thought to be important in providing good habitat for, or...
Resource Type:: Capstone Project

Emerald mineralization and amphibolite wall-rock alteration at the Khaltaro pegmatite-hydrothermal vein system, Haramosh Mountains, Northern Pakistan

Creator:: Laurs, Brendan M.
Resource Type:: Masters Thesis

Late Devonian (Famennian) brachiopods of the West Range Limestone and the Pilot Shale of Eastern Nevada

Creator:: Mayer, Paul S.
Resource Type:: Masters Thesis

A gender sensitive analysis of a community-based wildlife utilization initiative in Zimbabwe's Zambezi Valley

Creator:: Nabane, Nontokozo
Abstract:: Zimbabwe's Communal Areas Management Program For Indigenous Resources (CAMPFIRE), is a grassroots natural resource management initiative that promotes utilization of natural resources as an economic and sustainable land use option in Zimbabwe's rural areas. Currently the program focuses on wildlife utilization as a development intervention to improve the economic livelihood...
Resource Type:: Capstone Project

The effects of ownership pattern on forest road networks in western Oregon

Creator:: Freid, Matthew A.
Abstract:: The pattern of ownership imposed on the-forest landscape of Western Oregon defines the boundaries in which differences in jurisdiction, regulation, and land use operate. Road building is controlled by these factors, and in turn has an effect on the cumulative effects of human utilization of the forest. This study examined...
Resource Type:: Capstone Project

Three-dimensional gravity analysis of the Pacific-Antarctic east Pacific rise at 36.5°S, 49.8°S and 54.2°S

Creator:: Enriquez, Kelly D.
Abstract:: Three-dimensional gravity analysis is the process of removing the predictable components from the free-air gravity anomalies and has proven to be useful for interpreting the subsurface structures and active processes at mid-ocean ridges. The three-dimensional effects of the seafloor and Moho topography, assuming a constant crustal thickness and constant crust...
Resource Type:: Masters Thesis

The Coburg Wetland Self-guided Interpretive Trail: a case study in environmental interpretation planning

Creator:: Dunmire, Karen M.
Abstract:: The key to developing successful environmental interpretation is sound planning. This paper is a discussion of the principles of environmental interpretation and how they apply to the planning process. The Coburg Wetland is a 21 acre reserve located on the west side of lnterstate-5 in Coburg, Oregon. The city of...
Resource Type:: Capstone Project

Sediment production and delivery in Pistol River, Oregon and its effects on pool morphology

Creator:: Russell, Periann
Abstract:: Sediment production and delivery in Pacific Northwest coastal streams can have damaging effects on channel morphology and anadromous fish habitat. The research in Pistol River was designed to determine if a link exists between sediment delivery processes and degradation of fish habitat. Objectives of this basin-wide analysis were to: 1)...
Resource Type:: Masters Thesis

Geology, hydrothermal alteration, and geographic information system analysis of the Zortman Mine area, Montana

Creator:: Wampler, Peter J.
Resource Type:: Masters Thesis

Sound in hypermedia for geographical and environmental interpretation and analysis

Creator:: Elle, R. Ingvar
Abstract:: This paper explores the use of hypermedia m geographical and environmental analysis, focusing on the use of sound. After providing essential definitions the paper presents a brief history of multimedia and hypertext (the combination of which lead to the term hypermedia) and object oriented programming. The concept of the hypermap...
Resource Type:: Capstone Project

A quantitative analysis and description of the delivery and distribution of large woody debris in Cummins Creek, Oregon

Creator:: McGarry, Edward V.
Abstract:: Large woody debris (LWD) consists of boles, root wads and large branches that enter the stream through a variety of processes including senescence, wind throw, bank failure, fire, and debris torrents brought on by flood events. Within the stream, LWD provides significant benefits to aquatic organisms by contributing nutrients, providing...
Resource Type:: Capstone Project

Epithermal gold mineralization related to caldera volcanism at the Atlanta district, east-central Nevada

Creator:: LaBerge, Rene D.
Resource Type:: Masters Thesis

Pre-pliocene structural geology and structural evolution of the northern Los Angeles Basin, southern California

Creator:: Schneider, Craig L.
Abstract:: Detailed subsurface structure contour maps and cross sections have shown the northern Los Angeles basin to be underlain by a south facing monocline that is complicated by secondary faults and folds. The monocline forms a structural shelf that marks the northern boundary of the Los Angeles central trough. The monocline...
Resource Type:: Masters Thesis

Subsurface Quaternary and Pliocene structures of the northern Los Angeles Basin, California

Creator:: Hummon, Cheryl
Abstract:: The northern Los Angeles basin is influenced by two structural styles: the west-trending compressional Transverse Ranges to the north, and the strike-slip Peninsular Ranges to the south. The interaction of these two structural styles has resulted in a complex fold fault belt at the northern margin of the Los Angeles...
Resource Type:: Masters Thesis

Buildout density projections for the West Corvallis Growth Management Project

Creator:: Russell, Scott A.
Abstract:: Benton County, Oregon has been experiencing relatively high growth and development during the last five years. This new growth has put a strain on urban and rural development in the county. To cope with this growth, comprehensive plans, zoning, and many other planning issues must be assessed and revised according...
Resource Type:: Capstone Project

Geology and geochemistry of Juniper Ridge, Horsehead Mountain and Burns Butte : implications for the petrogenesis of silicic magma on the High Lava Plains, southeastern Oregon

Creator:: MacLean, James W.
Abstract:: The Juniper Ridge volcanic complex is located in the High Lava Plains Province of southeastern Oregon, a wide zone of bimodal volcanism and faulting that marks the northern limit of widespread Basin and Range-style faulting in the northern Great Basin Province. Rhyolite dome complexes are progressively younger to the northwest...
Resource Type:: Masters Thesis

Analysis of riparian vegetation age structure and forest land ownership in the Central Oregon Cascades

Creator:: Purnell, Christopher S.
Abstract:: Vegetation along the banks of mountain streams in the western Oregon Cascades comprises an integral part of the transition zone between land and water based ecosystems, and as such, is a vitally important and unique natural resource. Forestry is a major land use in this region, and harvesting riparian vegetation...
Resource Type:: Capstone Project

Nitrogen and chlorophyll relations to low altitude photographed reflectance of perennial ryegrass

Creator:: Kreinheder, David P.
Abstract:: This study was conducted to test a photographic method of determining the relationship, if any, between the spectral reflectance and measured levels of nitrogen and chlorophyll in plots of ryegrass turf. Color and color infrared aerial photos were taken of a grid of 375 plots of ryegrass in June and...
Resource Type:: Capstone Project

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