To see the other types of publications on this topic, follow the link: Coast Ranges.
Dissertations / Theses on the topic 'Coast Ranges'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the top 50 dissertations / theses for your research on the topic 'Coast Ranges.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.
1
Everett, Richard Gobin. "A biosystematic survey of Sierra Lodgepole pine (Pinus contorta var. murrayana [Critchfield]) populations in the transverse and peninsular ranges of Southern California." CSUSB ScholarWorks, 1997. https://scholarworks.lib.csusb.edu/etd-project/30.
Full text
2
Tetreault, Joya Liana. "Paleomagnetic, structural, and seismological evidence for oblique-slip deformation in fault-related folds in the Rocky Mountain Foreland, Colorado Plateau, and central Coast Ranges." Diss., Connect to online resource, 2006. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3239437.
Full text
3
Steeves, Kerry Ragnar. "The Pacific Coast Militia Rangers, 1942-1945." Thesis, University of British Columbia, 1990. http://hdl.handle.net/2429/42024.
Full textAbstract:
For Canadians the Second World War traditionally evokes images of the invasion of Normandy,
the Falaise Gap, and the ill-fated raid on Dieppe. Over the years Canadians
who served overseas have been recognized but, at the same time, soldiers who served on
the home front have been overlooked. This is because many of Canada's home defence
soldiers were conscripted under the National Resources Mobilization Act, and were unwilling
to go overseas. Thousands of Canadians, however, were denied entry into the
regular forces because they were too old, too young, or classified as medically unfit. In
British Columbia during the Second World War, these men were given the opportunity to
enlist in a unique home guard unit called the Pacific Coast Militia Rangers (P.C.M.R.).
The Pacific Coast Militia Rangers were organized in response to public pressure,
and because existing coastal defences were inadequate. Composed of unpaid volunteers
trained in guerilla tactics, the Pacific Coast Militia Rangers were a home defence force peculiar
to British Columbia. The Rangers were not a typical military organization. Rather,
they were a distinctively North American fighting force in the tradition of previous Ranger
formations. A sense of historical tradition was evident in the designation of "Rangers"
for British Columbia's Second World War guerilla home defence volunteers. In North
America, since the 1700s, men born in and acquainted with the hinterland-frontiersmen,
hunters, cowboys, and trappers proficient in the use of firearms-have been formed into
irregular Ranger units in times of emergency. There is a long list of these North American
Ranger organizations: Rogers' Rangers in the French and Indian War; Butler's Loyalist
Rangers, the East Florida Rangers, and the Queen's Rangers in the American Revolution;
the Frontier Battalion of the Texas Rangers in the revolution against Mexican
authority; Mosby's Rangers in the U.S. Civil War; and the Rocky Mountain Rangers in
the Northwest Rebellion. The Pacific Coast Militia Rangers were the twentieth century
revival of this Ranger tradition. Throughout history, all Ranger units have used the
same tactics: they employed guerilla warfare with an emphasis on surprise attacks, they
operated in small units which were highly mobile, and they focussed on rifle training. A
lack of formal military discipline has also been characteristic of all Ranger formations.
The Pacific Coast Militia Rangers, then, were not an innovation in the Canadian military
experience. They were part of a distinct military tradition of irregular troops adapted
to suit North American frontier conditions.
The Pacific Coast Militia Rangers reflected the character, fears, and internal conflicts
of British Columbia's society. British Columbia was a predominantly white community
and the P.C.M.R. mirrored the widespread white ethnic prejudices in the province. Ethnic
groups were largely excluded from the Rangers and Native Indians, who were accepted
as valuable recruits, were treated in a paternalistic manner.
Militant trade unionism has been an important facet of B.C. history, and trade unionists
were prominent in the Pacific Coast Militia Rangers. Trade unions fully supported
the P.C.M.R. and Ranger membership was dominated by the working class. The labour
movement's influence in the P.C.M.R. can be seen in the anxiety over the possible employment
of Ranger units to break strikes.
The role of war veterans in the P.C.M.R. also reflected the composition of the larger
society. First World War veterans were a well-defined group in B.C. society, and their
values and outlook were revealed through their Ranger participation. The veterans' zeal
and rivalry with younger Rangers indicates that their patriotism was, at times, misguided,
but it was rooted in a personal need to play a visible role in the war effort.
The P.C.M.R. operated in a democratic manner: if the commander of a Ranger company was disliked by his men, he could be voted out of his position. Similarly, if Rangers
disagreed with directives from P.C.M.E. headquarters they were quick to express their
displeasure and threatened resignation. This would have been impossible in the regular
army, but in the P.C.M.R.-composed of citizen-soldiers-it was a commonplace pattern.
The social equality between ranks, and the egalitarian way in which the P.C.M.R. operated
expressed the New World frontier values of British Columbia in the 1940s.
The wartime fears and phobias of British Columbians showed in the actions of the
Pacific Coast Militia Rangers. Life in British Columbia during the early years of the
Second World War was, for the most part, as secure as life in other regions of Canada.
This was changed, however, with the bombing of Pearl Harbor on 7 December 1941. The
aggressiveness of Japan and the stunning success of her war machine, caused panic in
the Pacific Coast province about the vulnerability of B.C. to an attack. In addition,
the war sharpened the already existing white racial animosity against the Japanese, and _
provided a socially acceptable outlet for its expression. White British Columbia has had
a history of fear of Asians and, subsequently, anti-Orientalism has been a current in the
province's culture. In much the same way that anti-Japanese sentiment forced the federal
government to intern and evacuate British Columbia's Japanese population, so too did
public outcry prompt the formation of local home guard units. These two problems-the
defence of British Columbia and anti-Japanese sentiment-became manifest in the history
of the Pacific Coast Militia Rangers.
From the Dominion government's viewpoint, the P.C.M.R. was a valuable organization.
The Rangers provided military protection at a low cost, but they also comforted a
frightened population which demanded protection from a Japanese invasion. It will be
argued here that while the main purpose of the P.C.M.R. was home defence, the organization
became much more than that to both the government and the people of British
Columbia. Quite apart from its defence role, the P.C.M.R. provided reassurance, sustained
the morale of a population at war, and acted as a means to indoctrinate civilians
with military propaganda.Arts, Faculty of
History, Department of
Graduate
4
Sanford, Barry A. "The West Tidewater Earthflow, Northern Oregon Coast Range." PDXScholar, 2014. https://pdxscholar.library.pdx.edu/open_access_etds/2497.
Full textAbstract:
The West Tidewater earthflow, one of the largest in Oregon's history, occurred in December of 1994. The earthflow is located approximately 15 km north of Jewel, Oregon near the summit ofthe Northern Oregon Coast Range Mountains. The earthflow is 900 m long and 250 m wide, giving it a surface area of 9 ha, or 22 acres. Volume is 3.5 million m3. The earthflow occurred in low strength, well-bedded, tuffaceous, carbonaceous, micaceous, clay-rich mudstone, and very fine-grained, feldspathic, clay-rich siltstone of the lower Miocene age Northrup Creek Formation. The soil clay fractions contain up to 90% smectite with indications ofhalloysite. This earthflow is a reactivation ofa 650-year-old landslide (C-14 dating of uncovered buried trees). The failure mode is examined using a Janbu slope analysis and includes double wedge failure near the headscarp. High soil pore water pressure is one of the major causes of this slope failure. Rainfall levels for October, November, and December of 1994 were twice the previous five-year average. Present day groundwater level within the basin is less than one meter below ground surface. The earthflow is partially controlled by two faults of regional extent that dissect the basin near the headscarp in NW-SE and NE-SW directions. The Inceptisol soils in the basin remain moist below 20 cm year around. Soil in the basin may have been further weakened due to loss of root strength following timber harvest on the site in 1991. Soil liquid limits range from 42% to 95%, with PI values ranging from 2% to 77%. Soil clay content ranges between 18% and 30%. Direct shear tests on the mudstone and siltstone bedrock in both drained and undrained conditions produced internal friction angles of 14-18°, with cohesion values of 4 - 8 kPa. Back calculation of study area soil strength using the modified Bishop method results in a residual friction angle of 20.7°. The failure mode ofthe earthflow is from the headscarp downward and is modeled using Janbu methods. The study includes a detailed topographic map and a failure analysis of the earthflow basin.
5
Perry, Anna F. Parker Donnie Franklin. "Petrology of Cascade Head Basalt, Oregon Coast Range, USA." Waco, Tex. : Baylor University, 2007. http://hdl.handle.net/2104/5079.
Full text
6
Pettus, Paul Bryce. "Modeling Fecal Bacteria in Oregon Coastal Streams Using Spatially Explicit Watershed Characteristics." PDXScholar, 2013. https://pdxscholar.library.pdx.edu/open_access_etds/1493.
Full textAbstract:
Pathogens, such as Escherichia coli and fecal coliforms, are causing the majority of water quality impairments in U.S., making up ~87% of this grouping's violations. Predicting and characterizing source, transport processes, and microbial survival rates is extremely challenging, due to the dynamic nature of each of these components. This research built upon current analytical methods that are used as exploratory tools to predict pathogen indicator counts across regional scales. Using a series of non-parametric methodologies, with spatially explicit predictors, 6657 samples from non-estuarine lotic streams were analyzed to make generalized predictions of regional water quality. 532 frequently sampled sites in the Oregon Coast Range Ecoregion, were parsed down to 93 pathogen sampling sites in effect to control for spatial and temporal biases. This generalized model was able to provide credible results in assessing regional water quality, using spatial techniques, and applying them to infrequently or unmonitored catchments. This model's 56.5% explanation of variation, was comparable to other researchers' regional assessments. This research confirmed linkages to land uses related to anthropogenic activities such as animal operations and agriculture, and general riparian conditions.
7
Mickelson, Katherine A. "LiDAR-Based Landslide Inventory and Susceptibility Mapping, and Differential LiDAR Analysis for the Panther Creek Watershed, Coast Range, Oregon." PDXScholar, 2011. https://pdxscholar.library.pdx.edu/open_access_etds/253.
Full textAbstract:
LiDAR (Light Detection and Ranging) elevation data were collected in the Panther Creek Watershed, Yamhill County, Oregon in September and December, 2007, March, 2009 and March, 2010. LiDAR derived images from the March, 2009 dataset were used to map pre-historic, historic, and active landslides. Each mapped landslide was characterized as to type of movement, head scarp height, slope, failure depth, relative age, and direction. A total of 153 landslides were mapped and 81% were field checked in the study area. The majority of the landslide deposits (127 landslides) appear to have had movement in the past 150 years. Failures occur on slopes with a mean estimated pre-failure slope of 27° ± 8°. Depth to failure surfaces for shallow-seated landslides ranged from 0.75 m to 4.3 m, with an average of 2.9 m ± 0.8 m, and depth to failure surfaces for deep-seated landslides ranged from 5 m to 75m, with an average of 18 m ± 14 m. Earth flows are the most common slope process with 110 failures, comprising nearly three quarters (71%) of all mapped deposits. Elevation changes from two of the successive LiDAR data sets (December, 2007 and March, 2009) were examined to locate active landslides that occurred between the collections of the LiDAR imagery. The LiDAR-derived DEMs were subtracted from each other resulting in a differential dataset to examine changes in ground elevation. Areas with significant elevation changes were identified as potentially active landslides. Twenty-six landslides are considered active based upon differential LiDAR and field observations. Different models are used to estimate landslide susceptibility based upon landslide failure depth. Shallow-seated landslides are defined in this study as having a failure depth equal to less than 4.6 m (15 ft). Results of the shallow-seated susceptibility map show that the high susceptibility zone covers 35% and the moderate susceptibility zone covers 49% of the study area. Due to the high number of deep-seated landslides (58 landslides), a deep-seated susceptibility map was also created. Results of the deep-seated susceptibility map show that the high susceptibility zone covers 38% of the study area and the moderate susceptibility zone covers 43%. The results of this study include a detailed landslide inventory including pre-historic, historic, and active landslides and a set of susceptibility maps identifying areas of potential future landslides.
8
Long, Colin James. "Holocene fire and vegetation history of the Oregon Coast Range, USA /." view abstract or download file of text, 2003. http://wwwlib.umi.com/cr/uoregon/fullcit?p3095260.
Full textAbstract:
Thesis (Ph. D.)--University of Oregon, 2003.Typescript. Includes vita and abstract. Includes bibliographical references (leaves 255-270). Also available for download via the World Wide Web; free to University of Oregon users.
9
Phelps, Jessica D. 1985. "The geomorphic legacy of splash dams in the Southern Oregon Coast Range." Thesis, University of Oregon, 2011. http://hdl.handle.net/1794/11292.
Full textAbstract:
xi, 38 p. : ill. (some col.), mapsSplash dams were in-stream structures that were used to facilitate log driving in the Oregon Coast Range (OCR) between 1880 and 1957. This study explores the potential legacy impacts of "splashing" on stream morphology in Camp Creek and the West Fork Millicoma in the Southern OCR. Field data on stream morphology, GIS analysis, and hydraulic modeling were used in a paired-reach and paired-basin approach to determine legacy impacts on stream widths, depths, cross-sectional shapes, wood accumulation and sediment size. The paired-reach approach did not demonstrate significant differences up- or downstream of past dam locations. The paired-basin approach indicates that "splashing" is associated with narrower streams and less fine sediment, although it is not clear whether this difference reflects legacy impacts of splash dams or other factors driving variations between basins. Splash dam releases significantly exceeded 100-yr flood magnitudes in headwater regions and were comparable to 100-yr flows in lower reaches.
Committee in charge: W. Andrew Marcus, Chairperson; Patricia McDowell, Member
10
Reid, Robert. "WEST COST SHALLOW WATER UNDERSEA WARFARE TRAINING RANGE." International Foundation for Telemetering, 2001. http://hdl.handle.net/10150/606479.
Full textAbstract:
International Telemetering Conference Proceedings / October 22-25, 2001 / Riviera Hotel and Convention Center, Las Vegas, NevadaUndersea warfare (USW) was perceived as a large-area, deep-water operation in the past therefore Fleet USW training ranges were designed to meet these requirements. Currently the bigger threat is the likelihood of regional conflict throughout the world by aggressive nations in littoral waters. The U.S. Navy must stand ready to respond to these regional conflicts when national interests are threatened. Consequently, naval forces must train to operate in the littoral environments where such regional conflicts are likely to occur. The West Cost Shallow Water Undersea Warfare Training Range (WC SWUWTR) is being developed to provide this training.
11
Beeson, Helen. "The Influence of Deep-Seated Landslides on Topographic Variability and Salmon Habitat in the Oregon Coast Range, USA." Thesis, University of Oregon, 2014. http://hdl.handle.net/1794/18421.
Full textAbstract:
A well-accepted idea in geomorphology is that landforms control the type and distribution of biological habitat. However, the linkages between geomorphology and ecology remain poorly understood. In rivers, the geomorphic template controls the hydraulic environment, partly shaping the river ecosystem. But what processes shape the geomorphic template? Here, I examine how two hillslope processes dominant in the Oregon Coast Range, debris flows and deep-seated landslides, affect valley floor width and channel slope, key components of the geomorphic template in riverine ecosystems. I then investigate how patterns in potential salmon habitat differ between streams dominated by deep-seated landslides and streams dominated by debris flows. I show that terrain influenced by deep-seated landslides exhibits (1) valley widths that are more variable throughout the network but less locally variable, (2) more variable channel slopes, and (3) more potential salmon habitat as well as significantly more connectivity between habitat types.
12
Huff, Dave, and Robert Rice. "DEMONSTRATION OF A LOW-COST MOBILE LAUNCH RANGE SAFETY SYSTEM." International Foundation for Telemetering, 2001. http://hdl.handle.net/10150/606412.
Full textAbstract:
International Telemetering Conference Proceedings / October 22-25, 2001 / Riviera Hotel and Convention Center, Las Vegas, NevadaThe Ballistic Missile Range Safety Technology (BMRST) program developed and demonstrated a low-cost, rapidly reconfigurable, launch range tracking and safety system. The system is comprised of both an on-board tracking unit and a ground based telemetry acquisition and control system. The on-board unit is based on an integrated GPS/INS unit with an embedded S-band telemetry transmitter. The ground system is comprised of fully redundant telemetry acquisition systems, telemetry processing computers, tracking computers, and secure/IRIG UHF command destruct transmission systems. This paper provides an overview of the system architecture and describes telemetry system design trades in particular. The paper describes how aircraft and satellite testing supports verification of system tracking capability. The paper closes by presenting data from the Quick Reaction Launch Vehicle (QRLV) flight test in Kodiak, Alaska.
13
Shaikh, Mahrukh. "Geochemistry of Highly Alkaline Waters of the Coast Range Ophiolite in California, USA." Thesis, University of Rhode Island, 2018. http://pqdtopen.proquest.com/#viewpdf?dispub=10843925.
Full textAbstract:
Altered waters impacted by serpentinization of Coast Range Ophiolite (CRO) ultramafic units have been reacting with trapped Cretaceous seawaters, meteoric waters, and other surface derived waters since tectonic emplacement of this ophiolite. In 2011, groundwater monitoring wells of various depths were established near Lower Lake, CA, USA in the McLaughlin Natural Reserve, administered by the University of California-Davis, in order to understand ongoing low temperature alterations and biogeochemical interactions taking place. Wells were installed at two sites in the Reserve. There are three Quarry Valley area wells (QV1-1 [23m depth], QV1-2 [14.9m], QV1-3 [34.6m]) and five Core Shed area wells (CSW1-1 [19.5m], CSW1-2 [19.2m], CSW1-3 [23.2m], CSW1-4 [8.8m], CSW1-5 [27.4m]). Water samples were collected from all installed wells, as well as from an older well drilled near the historic core shed (Old Core Shed Well, or OCSW [82m]), and an upper (TC1) and lower (TC2) site sampling a nearby groundwater-fed alkaline seep, at Temptation Creek. Key environmental parameters (temperature, pH, conductivity, oxidation-reduction potential, and dissolved oxygen) were collected in the field using YSI-556 multiprobe meter, and total concentrations for major cations (Ca+2, Na +, Mg+2, K+) were analyzed using Thermo Scientific iCAP 7400 Inductively Coupled Plasma-Atomic Emission Spectrometry, and anions (F–, Cl–, SO4 –2, NO3–) on Dionex Modular DX 500 Ion Chromatography.
Principal component analysis was conducted to determine key factors and processes controlling water chemistries at CRO. Geochemist’s Workbench software was used to model the low temperature alteration of a serpentinization-influenced model water volume passing through serpentinite over a period of 100 million years. Modeling provided insight into the changing pH, Eh, evolving water chemistries, stepwise mineral assemblages, appearance of marker minerals at geochemical transitions in the system, and supported evidence of pervasive impacts of low temperature, oxidative weathering of serpentinites. This work supports the case of incremental dilution and transformation of a deeply sourced Ca2+-OH– Type II water in this environment, and constrains reaction status of present day CRO waters and those of similar sites, in terms of the progress of serpentinite weathering reactions. Further, the study informs our understanding of serpentinization-related geological environments present on other celestial bodies (e.g., Mars, Europa, Enceladus) in our Solar System and beyond.
14
Goodlin, Ryan, Brad Grafelman, and Troy Wolz. "Cost Effective COTS Microphone Array for Range Safety Applications." International Foundation for Telemetering, 2011. http://hdl.handle.net/10150/595626.
Full textAbstract:
ITC/USA 2011 Conference Proceedings / The Forty-Seventh Annual International Telemetering Conference and Technical Exhibition / October 24-27, 2011 / Bally's Las Vegas, Las Vegas, NevadaIn range safety and surveillance applications, it is helpful to have an array of sensitive, directional microphones. Using beamforming and feature extraction, one can use such an array to locate, track, and identify a variety of targets. This paper describes how one can construct such an array from sub-arrays of small, inexpensive, commercial off-the-shelf microphones. Each sub-array consists of a few dozen electrets condenser microphones which are closely spaced. The analog signals from the microphones are summed, digitized, and then combined with signals from other sub-arrays using a field programmable gate array device. The digital signal is then passed to a general purpose computer for further analysis.
15
Piehl, Bradley T. "An evaluation of culverts on low volume forest roads in the Oregon Coast Range." Connect to this title online, 1986. http://hdl.handle.net/1957/478.
Full text
16
Zeeuw, Maureen L. de 1961. "Home range size and habitat use patterns of the Sanderling (Calidris alba) on the Oregon coast nonbreeding range, and comparison with home range sizes in California and Peru." Thesis, Thesis (M.S.)--University of Oregon, 1990, 1990. http://hdl.handle.net/1794/9810.
Full textAbstract:
Typescript.
Includes vita and abstract.
Bibliography: Includes bibliographical references (leaves 62-64).During the nonbreeding season I observed the degree of site faithfulness of individual Sanderlings, Calidris alba, on the Pacific coast of southcentral Oregon, and the linear home range size was estimated. Home range size of Oregon birds and range sizes of individuals wintering in coastal areas of California and Peru were compared to determine if annual migration distance from the high arctic breeding ground is positively correlated with home range size. Oregon sanderlings on average remained within a minimum range of 17 kID during the nonbreeding season from October thrcugh April, although spring data are sparse. The Oregon home range is significantly larger than that of birds in Bodega Bay, California, and similar to that of birds in Peru. Therefore home range size is not correlated with distance from the breeding ground.
17
Schulte, Daniel. "Kinematics of the Paparoa Metamorphic Core Complex, West Coast, South Island, New Zealand." Thesis, University of Canterbury. Geological Sciences, 2011. http://hdl.handle.net/10092/5459.
Full textAbstract:
The Paparoa Metamorphic Core Complex developed in the Mid-Cretaceous due to continental extension conditioning the crust for the eventual breakup of the Gondwana Pacific Margin, which separated Australia and New Zealand. It has two detachment systems: the top-NE-displacing Ohika Detachment at the northern end of the complex and the top-SW-displacing Pike Detachment at the southern end of the complex. The structure is rather unusual for core complexes worldwide, which are commonly characterised by a single detachment system. Few suggestions for the kinematics of the core complex development have been made so far. In this study structural-, micrographic- and fission track analyses were applied to investigate the bivergent character and to constrain the kinematics of the core complex. The new results combined with reinterpretations of previous workers’ observations reveal a detailed sequence of the core complex exhumation and the subsequent development.
Knowledge about the influence and the timing of the two respective detachments is critical for understanding the structural evolution of the core complex. The syntectonic Buckland Granite plays a key role in the determination of the importance of the two detachment systems. Structural evidence shows that the Pike Detachment is responsible for most of the exhumation, while the Ohika Detachment is a mere complexity. In contrast to earlier opinions the southwestern normal fault system predates the northeastern one. The Buckland Pluton records the ceasing pervasive influence of the Pike Detachment, while activity on the Ohika Detachment had effect on the surface about ~8 Ma later.
Most fission track ages are not related to the core complex stage, but reflect the younger late Cretaceous history. They show post core complex burial and renewed exhumation in two phases, which are regionally linked to the development of the adjacent Paparoa Basin and the Paparoa Coal Measures to the southwest and to the inception of seafloor spreading in the Tasman Sea in a larger context.
18
Greenfield, Nathan Joseph. "Low cost range and attitude determination solution for small satellite platforms." Thesis, Montana State University, 2009. http://etd.lib.montana.edu/etd/2009/greenfield/GreenfieldN0509.pdf.
Full textAbstract:
The ability to determine the range and attitude between two satellites can be a challenging venture. It can be made more challenging when considering the use of such a system on a small satellite. Successful implementation of a small and low power range and attitude sensor could open potential doors to multiple small satellite constellations and formation flying maneuvers. After successfully demonstrating an electromagnetic docking system on a one-dimensional air track, it was determined that continued work into two and three-dimensional systems would require a more functional range and attitude sensor than was originally used. Such a sensor would have to be small enough for use aboard a small satellite, require little power while operating and provide accurate data over the required range of operation, all while maintaining a minimal monetary cost. The SATellite Range and Attitude Imaging SystEm (SATRAISE) was developed to meet this demand. In order to meet all of the listed requirements, a system based on an embedded Linux computer platform was developed. The hardware for the system utilized consumer grade, commercially available parts, including a standard computer webcam and LEDs. The software for the system made use of existing image processing libraries in order to facilitate the detection and identification of target points in frames captured by the webcam. Following successful integration of the hardware and implementation of the required software, the SATRAISE was characterized under a variety of operating conditions in order to verify the accuracy, stability and power requirements of the system. The results showed that the SATRAISE met or exceeded all of the established design goals.
19
Rybakovienė, Irma. "Medienos ruošos darbų, atliekamų rangos būdu, ekonominė analizė." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2005. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2005~D_20050611_204111-32528.
Full textAbstract:
Research work is about labor organization of woodcutting by contract work and economical analysis of activity’s results.
Object of study – the firm’s “ Miško darbų paslaugos “ 1998 – 2003 y. activity of woodcutting by contract work.
Work purpose – to perform investigation about labor organization of woodcutting by contract work and economical analysis of activity’s results.
Work mode – by performing analyze, used graphics, analytical tables, data’s classification, comparison, calculation, counting average and generalization methods.
Work results – the firm “ Miško darbų paslaugos “ established in 1997 year, basic kind of activity- forestry and woodcutting. The valuation of timber cutting works executing the main usage cuttings for produced industrial wood in 1998 y. was 13.5 Lt/m3, in 2003 y. – 13.48 Lt/m3, accordingly for produced woodshed - 11.50 Lt/m3 and 11.48 lt/m3, for clearing-up the cutting area – 1000 Lt/ha and 995 Lt/ha. In the selective usage cutting areas the valuation was changeless; for industrial wood full pay was 18.50 Lt/m3, for produced woodshed – 16.50 Lt/m3. Net cost of making sawn timber consist from: direct production expenses, administration expenses, workers salary, social insurance and deduction from realization income. Direct expenses of woodcutting – 4.57 Lt/m3, were calculated for one sawyer and ancillary worker, given that together they making 225 m3 sawn timbers during month, general volume of shaft is 0.34 m3. Firm’s administration expenses –... [to full text]
20
Kusler, Jennifer, and Jennifer Kusler. "A 7500-Year Paleolimnological Record of Environmental Change and Salmon Abundance in the Oregon Coast Range." Thesis, University of Oregon, 2012. http://hdl.handle.net/1794/12413.
Full text
21
Crane, Dakota A. "Future Changes to Species' Range along the South American Coast Based on Statistically Downscaled SST Projections." The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1555352153855504.
Full text
22
Cerovski-Darriau, Corina. "Landslides and Landscape Evolution over Decades to Millennia—Using Tephrochronology, Air Photos, Lidar, and Geophysical Investigations to Reconstruct Past Landscapes." Thesis, University of Oregon, 2016. http://hdl.handle.net/1794/20405.
Full textAbstract:
Landscapes respond to external perturbations over a variety of timescales, including million-year tectonic forcing, millennial to decadal climate fluctuations, and minutes-long high intensity storms or large magnitude earthquakes. In mountainous regions, understanding the role of landslides in driving the hillslope response to these perturbations is paramount for understanding landscape evolution over geologic timescales and hazards over human timescales. Here I analyze the landslide-driven hillslope response over millennial to decadal timescales using a variety of tools and techniques (e.g. tephrochronology, lidar and air photo analysis, field and subsurface investigations, and seismic refraction) in the Waipaoa Basin (New Zealand) and Oregon Coast Range (USA). For the Waipaoa study catchment, pervasive landslides have been sculpting >99% of the hillslopes in response to >50 m of fluvial incision following the shift to a warmer, wetter climate after the Last Glacial Maximum (LGM) (~18 ka). Then, starting in the late 1800s, European settlement resulted in deforestation and conversion of >90% of the landscape to pastureland—spurring a rapid increase in landslide-driven erosion. To quantify the landscape response, I first reconstruct LGM and younger paleosurfaces using tephrochronology and lidar-derived surface roughness to estimate the volume, timing, and distribution of hillslope destabilization. From these reconstructions, I calculate the post-LGM catchment-averaged erosion rate (1.6 mm/yr) and determine that the timing of the initial hillslope adjustment was rapid and occurred by ~10 ka. Second, I quantify the rate and volume of historic hillslope degradation using a 1956-2010 sequence of aerial photographs, lidar, and field reconnaissance to map the spatial extent of active landslides, create a ‘turf index’ based on the extent and style of pastoral ground disruption, correlate that with downslope velocity, and calculate the average annual sediment flux. From the sediment flux, I calculate an erosion rate over the past ~50 years (~20 mm/yr) that is 10x greater than post-LGM. Lastly, in Western Oregon, I confirm that seismic refraction can determine the size (e.g. depth) and failure style of landslides in western Oregon—data needed to incorporate these poorly studied landslides into future landscape evolution or hazard models.
This dissertation includes both previously published and unpublished co-authored material.
23
Patel, Rutvik Bharatkumar. "Novel Cost and Space Efficient Range of Motion and Gait Analysis Systems." Wright State University / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=wright1485206546395948.
Full text
24
Iglesias, Olmedo Miguel. "Impairment Mitigation in High Capacity and Cost-efficient Optical Data Links." Doctoral thesis, KTH, Optik och Fotonik, OFO, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-208101.
Full textAbstract:
The work presented in this thesis fits within the broader area of fiber optics communications. This is an important area of research as it provides a breeding ground for the present and future technologies supporting the Internet. Due to the ever-increasing bandwidth demands worldwide, the network infrastructures that make up the Internet are continuously being upgraded. This thesis aims to identify key segments of the Internet that are deemed to become the Internet's bottleneck if new technology does not replace the current one. These are datacenter intra and inter-connects, and metropolitan core area networks. In each category, we provide a comprehensive overview of the state of the art, identify key impairments affecting data transmission, and suggest solutions to overcome them. For datacenter intra and inter-connects, the key impairments are lack of bandwidth from electro-optic devices, and dispersion. Solutions attempting to tackle these impairments must be constrained by cost and power consumption. The provided solution is MultiCAP, an alternative advanced modulation format that is more tolerable to dispersion and provides bandwidth management features, while being flexible enough to sacrifice performance in order to gain simplicity. MultiCAP was the first advanced modulation format to achieve over 100~Gb/s in 2013 for a data-center interconnect and set the world record on data transmission over a single VCSEL in 2014 for a short reach data link. On metro-core networks, the challenge is to efficiently mitigate carrier induced frequency noise generated by modern semiconductor lasers. We point out that, when such lasers are employed, the commonly used laser linewidth fails to estimate system performance, and we propose an alternative figure of merit we name "Effective Linewidth". We derive this figure of merit analytically, explore it by numerical simulations and experimentally validate our results by transmitting a 28~Gbaud DP-16QAM over an optical link.QC 20170602
GRIFFON
25
Lundqvist, Henrik. "Range characteristics and productivity determinants for reindeer husbandry in Sweden /." Uppsala : Reindeer Husbandry Unit, Swedish University of Agricultural Sciences, 2007. http://epsilon.slu.se/2007100.pdf.
Full text
26
Snow, Cameron A. "Geology of the Cuesta Ridge Ophiolite Remnant near San Luis Obispo , California: Evidence for the Tectonic Setting and Origin of the Coast Range Ophiolite." DigitalCommons@USU, 2002. https://digitalcommons.usu.edu/etd/6737.
Full textAbstract:
The Cuesta Ridge ophiolite is one of the best-preserved remnants of mid-Jurassic ophiolite in California. Geologic mapping and petrologic studies show that it comprises (1) harzburgite mantle tectonite, (2) dunite-rich mantle transition zone (MTZ), (3) wehrlite and pyroxenite, (4) isotropic gabbro, (5) sheeted dike/sill complex, (6) volcanic rocks (7) late-stage dikes and flows, and (8) tuffaceous radiolarian chert. The sheeted dike/sill complex is dominated by quartz diorite, with significant modal quartz and hornblende. The volcanic section is dominated by arc tholeiite and boninitic lavas. Boninites, with high MgO, Cr, and Ni comprise 40% of the volcanic rocks. Latestage dikes and lava flows below the overlying chert, have a MORB-like affinity. These data suggest formation in a supra-subduction zone setting with three stages of arc-related magmatism before late-stage MORB magmatism. I infer formation above the east-dipping proto-Franciscan subduction zone and suggest that ophiolite formation was terminated by a ridge subduction/collision event.
27
Marshall, Michael Scott. "Slope Failure Detection through Multi-temporal Lidar Data and Geotechnical Soils Analysis of the Deep-Seated Madrone Landslide, Coast Range, Oregon." PDXScholar, 2016. https://pdxscholar.library.pdx.edu/open_access_etds/2656.
Full textAbstract:
Landslide hazard assessment of densely forested, remote, and difficult to access areas can be rapidly accomplished with airborne light detection and ranging (lidar) data. An evaluation of geomorphic change by lidar-derived digital elevation models (DEMs) coupled with geotechnical soils analysis, aerial photographs, ground measurements, precipitation data, and numerical modeling can provide valuable insight to the reactivation process of unstable landslides. A landslide was selected based on previous work by Mickleson (2011) and Burns et al. (2010) that identified the Madrone Landslide with significant volumetric changes. This study expands on previous work though an evaluation of the timing and causation of slope failure of the Madrone Landslide. The purpose of this study was to evaluate landslide morphology, precipitation data, historical aerial photographs, ground crack measurements, geotechnical properties of soil, numerical modeling, and elevation data (with multi-temporal lidar data), to determine the conditions associated with failure of the Madrone Landslide. To evaluate the processes involved and timing of slope failure events, a deep seated potentially unstable landslide, situated near the contact of Eocene sedimentary and volcanic rocks, was selected for a detailed analysis. The Madrone Landslide (45.298383/-123.338796) is located in Yamhill County, about 12 kilometers west of Carlton, Oregon. Site elevation ranges from 206 meters (m) North American Vertical Datum (NAVD-88) near the head scarp to 152 m at the toe. The landslide is composed of two parts, an upper more recent rotational slump landslide and a lower much older earth flow landslide. The upper slide has an area of 2,700 m2 with a head scarp of 5-7 m and a volume of 15,700 m3. The lower earth flow has an area of 2300 m2, a head scarp of 15 m, and a volume of 287,500 m3. Analysis of aerial photographs indicates the lower slide probably originated between 1956 and 1963. The landslide is located at a geologic unit contact of Eocene deep marine sedimentary rock and intrusive volcanic rock. The landslide was instrumented with 20 crack monitors established across ground cracks and measured periodically. Field measurements did not detect ground crack displacement over a 15 month period. Soil samples indicate the soil is an MH soil with a unit weight of 12 kN/m3 and residual friction angle of 28φ'r which were both used as input for slope stability modeling. Differential DEMs from lidar data were calculated to generate a DEM of Difference (DoD) raster to identify and quantify elevation changes. Historical aerial photograph review, differential lidar analysis, and precipitation data suggest the upper portion of the landslide failed as a result of the December 2007 storm.
28
Riedesel, Philipp. "Tilt sensing with low-cost inertial measurement units (IMUs) : Sensor calibration, accuracy specifications and application range." Thesis, Högskolan i Gävle, Samhällsbyggnad, GIS, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-22497.
Full textAbstract:
Many surveying engineering applications require the knowledge of the orientation parameters of instruments. One can use inertial measurement units (IMUs) to determine that. IMUs are combinations of several inertial sensors and comprise at least an accelerometer and a gyroscope. Therefore, they can detect accelerations and angular rates in a three-dimensional space. As micro-electro-mechanical systems, the sensors are increasingly getting smaller and lighter, but without being reduced in their accuracy. The smaller size facilitates diverse placing of the sensors, which allows a variety of uses. Moreover, several low-cost IMUs have been devised since the development of single-board computers. The main objectives of this work are to determine tilts using a low-cost IMU, and the accuracy of the sensor. Furthermore, it studies general IMU applications in surveying engineering, and examines whether low-cost versions are applicable. To fulfil the objectives, the study was based on a selected low-cost IMU. Two programs were developed as part of this work. One was to control the sensor and the other, to calculate the tilts and analyse the data. The IMU was mounted in front of the objective of the total station and aligned in different reference orientations. All measurements were performed under controlled thermal conditions. Thereby, it was ensured that no falsifications could appear due to ambient temperature influences. As a first step, the sensor calibration process was completed. It helped determine the signal offset parameter and their time-dependent change. The calibration was done using two present methods, the six-position and the multi-position methods. The calibrated IMU helped determine the tilts. This was done in the case of the accelerometer via trigonometric functions, which allowed an absolute orientation statement. In contrast, the gyroscope provided relative orientation with the multiplication of the detected angular variance and the time that passed. After that, a target-actual comparison with the reference information of the total station helped determine the external accuracy of the tilt from the IMU. Moreover, multiple measurements could give a statement of the internal accuracy. Finally, the Kalman Filter was added to smooth out the sensor data and combine it in real-time. The calibration methods showed similar results, and it was striking that the sensors did not show the expected drifts. The reason could be related to a pre-calibration by the manufacturer. On the one hand, the used IMU showed differences in the total station alignments in the order of 0.798° for the accelerometer and up to 4.3° for the gyroscope with the calibrated data. On the other, the differences in repeated measurements were at 0.024° for the accelerometer and 0.5° for the gyroscope. It was figured out different possible applications of IMUs in surveying engineering. Among other things, these included orientation monitoring of sensor platforms or the determination of the external orientation of unmanned aerial systems. For these applications, the usability depends on the achievable accuracy. In the case of the IMU chosen in this study, the proven accuracy is too inaccurate for these applications. There is a need for further investigation because the use of another sensor type may rectify the insufficient accuracy problem. Moreover, to achieve better accuracies and to make it possible to use the IMU in different ambient temperatures, the temperature influence must be determined.
29
Lowndes, D. L. D. "Low cost, short range free space quantum cryptography for consumer applications : pocket size for pocket change." Thesis, University of Bristol, 2014. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.684367.
Full textAbstract:
A Quantum Key Distribution system has been demonstrated with a focus on applicability of the technology to a consumer use model. The optical devices were split into a large, expensive "Quantum ATM" (the Bob terminal) and a small, cheap handheld section (the Alice device). Work was initially done to integrate the devices into a realistic demonstration system which was exhibited at several international conferences. Following this success, the devices constituent parts were isolated and improved upon. Work on the Alice device focused upon proposing a new scheme for light collimation and then investigating a method to enact this. In the Bob device the progress was directed towards a more effective single photon detection system utilizing active quenching. An asymptotic secure key rate of 20kb/s was obtained at a bit error rate (BER) of 4% corresponding to a daylight operation scenario. A docking scheme was enacted to simplify the alignment of the optical channel which was shown to be repeatable over at least 50 cycles. The system was also shown to be stable over an extended period of time.
30
Zucker, Steven J. "Influence of channel constraint on primary production, preiphyton biomass, and macroinvertebrate biomass in streams of the Oregon Coast Range." Thesis, 1993. http://hdl.handle.net/1957/37191.
Full textAbstract:
Differences in primary production and periphyton and macroinvertebrate
biomass between pairs of constrained (valley floor width of less than twice the active
channel width) and unconstrained reaches were investigated in Elk River and four
tributaries in southwest Oregon. In August 1991, macroinvertebrates were sampled
from individual cobbles, and rocks were collected to determine periphyton biomass.
In August 1992, gross primary production was estimated in the four tributaries using
closed, non-circulating chambers. Unconstrained reaches received approximately
twice as much direct solar radiation (measured with a Solar Pathfinder) as constrained
reaches. Gross primary production in unconstrained reaches was double that of
constrained reaches. Periphyton biomass did not differ between reach types. Total
macroinvertebrate biomass was 38% greater in unconstrained reaches, where scraper
biomass was 2.4 times that of constrained reaches. When regressed across streams,
gross primary production, macroinvertebrate biomass, and scraper biomass were
positively associated with solar radiation. Greater solar radiation in unconstrained
reaches is the most apparent causal mechanism for greater gross primary production,
which in turn may cause greater macroinvertebrate biomass in unconstrained reaches.
Greater invertebrate consumption in unconstrained reaches may limit periphyton
accrual, keeping standing crops at levels similar to those found in constrained reaches.
When identifying variables that shape biotic communities and determine productive
potential, channel constraint is important.Graduation date: 1994
31
Blair, Michael Stuart. "Oregon coastal lake study : phosphorus loading and water quality implications." Thesis, 1993. http://hdl.handle.net/1957/36085.
Full textAbstract:
A study of phosphorus loading and water quality implications was conducted for
the Oregon coastal lakes. The study was based on existing data for lake total phosphorus
concentrations and for watershed land uses. A phosphorus mass-balance model was
developed to predict lake total phosphorus concentrations from estimated phosphorus
loading from land uses within the lake's watershed. Uncertainty in total phosphorus
concentration estimates are included in the model, and model predictions are considered
to be moderately to highly reliable.
The Oregon coastal lake phosphorus mass-balance model was calibrated from data
for 12 Oregon coastal lakes. Land use phosphorus loading coefficients for forestry, the
coastal dunal aquifer, and precipitation were derived from data specific to the Oregon
coastal region, while other phosphorus loading coefficients were estimated based on
correlations between literature values and Oregon coastal conditions.
The model may be used as an aid for land use management decisions by
estimating water quality effects of projected land use changes. A case study of Mercer
Lake was used to illustrate the model application.Graduation date: 1994
32
Mayrsohn, Cheryl. "Similarities in understory vegetation composition between unthinned, thinned and old-growth Douglas fir stands in western Oregon." Thesis, 1995. http://hdl.handle.net/1957/34684.
Full textAbstract:
Forest stands were studied to determine if old-growth
forest structure could be mimicked in younger stands via
overstory manipulation. Cover and species composition of
understory plants were systematically sampled in sixteen
thinned second-growth stands and sixteen adjacent unthinned
second-growth Douglas fir (Pseudotsuga menziesii (Mirabel)
Franco.) stands. The stands were thinned twenty-four to
thirteen years ago. These were compared to seven nearby old-growth
stands. Thinned and unthinned stands had matching
elevations, aspect, and soils, yet differed primarily in
management treatment. Leaf area indices were determined for
these stands.
Thinned stands differed from the old-growth and
unthinned stands in having significantly higher cover values
and species numbers, apparently resulting from increased
light to the forest floor and a greater variety of
microhabitats created by thinning. Young unthinned and old-growth
stands were comparable in terms of cover and
richness, but differed in species composition. Diversity
indices showed no difference in species diversity between
the three types of stands.
Ordination of the species/sample data using Detrended
Correspondence Analysis showed that understory species
composition of the young unthinned and thinned stands was
nearly identical. Species composition of old-growth stands
differed from thinned and unthinned stands. The ordination
indicated that age of the stands, structure of the canopy
layers and climate were major determining factors in the
species composition of the understory plant communities.
Management manipulation of the second growth stands did
not yield stands with understory vegetation communities that
mimicked those of old-growth stands. The conclusions of this
study were: 1) Shrub cover increased with thinning as
compared to unthinned and old-growth stands. 2) Thinning
increased the species richness of the stands, without
increasing the number of exotics. 3) Diversity was not
altered by thinning. Old-growth, thinned and unthinned
stands did not differ in diversity values. 4) Patterns of
community composition in thinned stands were more similar to
unthinned equivalent stands than to nearby old-growth.Graduation date: 1996
33
Spitz, Herbert M. "Subsurface geology of the southeastern Cuyama Valley, southern Coast Ranges, California /." 1985. http://hdl.handle.net/1957/11940.
Full textAbstract:
Thesis (M.S.)--Oregon State University, 1986.Typescript (photocopy). Eight maps and twelve ill. folded in pocket. Includes bibliographical references (leaves 79-83). Also available on the World Wide Web.
34
Kariminia, Seyed Mohsen. "Upper jurassic and lower cretaceous radiolaria biostratigraphy of California coast ranges /." 2006. http://proquest.umi.com/pqdweb?did=1324366821&sid=1&Fmt=2&clientId=10361&RQT=309&VName=PQD.
Full text
35
Keon, Dylan B. "Factors limiting the distribution of the sensitive lichen Usnea longissima in the Oregon Coast Range : habitat or dispersal?" Thesis, 2001. http://hdl.handle.net/1957/33077.
Full text
36
Bateman, Douglas S. "A comparison of nest site selection and reproductive effort by reticulate sculpin (Cottus perplexus) in two streams of different geologies in the central Coast Range of Oregon." Thesis, 1998. http://hdl.handle.net/1957/33744.
Full textAbstract:
Nest sites of reticulate sculpin (Cottus perplexus) were located in two stream reaches, one from a basalt basin and one from a sandstone basin. Stream reaches were similar in gradient, basin area, elevation, climate, and riparian vegetation but differed in biologic community structure and substrate characteristics. An electivity index was used to determine if selection for nest sites occurred and also to compare patterns of selection between habitat types and stream reaches. Eggs from nests were collected so comparisons in reproductive effort could be made between streams and habitat types.
Cobble sized substrate was positively elected in all habitat units examined and moderate embeddedness (6-25%) was positively elected in all units but one. No nests were found on bedrock, wood, or fine sediment substrate. A small number of nests were found on both larger gravel and boulder size particles.
Only two out of 471 nests located were associated with rocks which were
embedded 51% or more.
Reproductive effort on a per nest basis was greater in the basalt stream. Nest weights in the basalt stream exceeded nest weights in the sandstone stream by 90% (95% confidence interval 52-152%) on average and the number of eggs per nest was 39% (95% confidence interval 8-79%)greater in the basalt stream. Differences in reproductive effort per nest within an individual stream were not detected in comparisons among scour pools, riffles, high cobble density and low cobble density habitat units. Reproductive effort per nest varied through the sampling period with intermediate effort early, low effort in the mid portion and the highest effort late. This pattern was apparent in both streams but statistically significant in the sandstone stream only.
Nest densities were similar at 0.16 nest/m�� and 0.17 nest/m�� for the basalt and sandstone streams respectively. Differences in nest densities within streams were not detected between scour pools and riffles in either stream or between high and low cobble density units in the basalt stream. A difference was detected between high and low cobble density units in the sandstone stream (p=0.02). Nest densities were greater on average in the tailout portions of pools as opposed to the head and body portions in both streams but statistically significant in the sandstone stream only (p=0.04).
We speculate that because patterns of electivity were similar between
streams and between different habitat types within a stream, all with different
levels of habitat availability, that male fitness is tightly linked with habitat
selection for nest sites. Our results would suggest that reticulate sculpin nest site
selection and reproductive effort are not strongly influenced by habitat on a geomorphic channel unit scale. It may be more appropriate to delineate sculpin
habitat by substrate patches within geomorphic habitat units.Graduation date: 1998
37
Baillie, Michael W. "Scourability of weak rock in the Oregon Coast Range." Thesis, 1998. http://hdl.handle.net/1957/33686.
Full textAbstract:
The undermining of bridge foundations can lead to either costly repairs or a bridge
collapse. These foundations must be designed to counter the effects of scour. Current
practice does not allow for accurate estimates of scour in erodible rock. Scour in rock can be related to geotechnical and hydraulic properties. A field study of eleven bridge sites provided samples of the bedrock where the abrasive resistance of the rock was determined and hydraulic properties of the channel were calculated. Laboratory abrasion resistance values from a modified slake durability test and hydraulic variables such as stream power were compared to recent and past stream channel cross-sections. A preliminary model has been proposed wherein the degradation of the stream channel is related to the abrasive resistance of the bedrock and the area under the daily stream power. This method provides an estimate of the degradation of the stream bed due to abrasion by bedload and flood events, not necessarily local or contraction scour.Graduation date: 1998
38
Rogan, Lael M. "Combining the Recreation Opportunity Spectrum (ROS) and Geographic Information Systems (GIS) to assess current and future recreation conditions in Oregon's coast range /." 2000. http://hdl.handle.net/1957/11398.
Full text
39
Nobel, William O. "Characteristics of spring foraging ecology among black bears in the central coast ranges of Oregon /." 1993. http://hdl.handle.net/1957/11342.
Full text
40
Cole, Eric K. "Influence of limited access roads on Roosevelt elk in the Oregon Coast Range." Thesis, 1996. http://hdl.handle.net/1957/34898.
Full textAbstract:
No studies have evaluated the effects of limited vehicle access on movements, survival and habitat use of Roosevelt
elk (Cervus elaphus roosevelti) . We installed twenty gates, restricting motorized vehicle access by the public in
seven discrete Road Management Areas (RMAs), comprising 35% of the study area. We radio-tracked 31 cow
elk for 13 months in a 38,000 ha area of the Oregon Coast Range. Prior to the installation of the gates, 20 of these
elk had been tracked for 14 months, allowing a paired comparison of elk movements and habitat use before and
during the limited access period. The percentage of elk home ranges or core areas within the RMAs did not differ
between periods, but there was a clear decrease in daily movement of elk during the limited access period. Survival
rates increased during the limited access period and declined after the removal of the gates. During the limited
access period, there was a significant increase in the use of open, foraging habitats and areas <150 m from roads.
We conducted habitat selection analysis on vegetative cover types, distance from roads and distance from water.
In general elk use of vegetative cover types was not significantly different from availability (p<0.05). Elk avoided
areas <150 m from roads and selected areas >150 m from roads. Elk selected areas <150 m from streams and
avoided areas >600 m from streams. Roosevelt elk should benefit from the preferred alternative of the President's
forest Plan, which maintains roadless areas near streams.Graduation date: 1996
41
Hicks, Brendan J. "The influence of geology and timber harvest on channel morphology and salmonid populations in Oregon coast range streams." Thesis, 1989. http://hdl.handle.net/1957/34424.
Full text
42
Humes, Marcia Lynn. "Activity of bats in thinned, unthinned, and old-growth forests in the Oregon Coast Range." Thesis, 1996. http://hdl.handle.net/1957/33976.
Full textAbstract:
Ten species of bats occur in the Oregon Coast Range and are hypothesized to be
associated with late-successional forests. The development of characteristics of late-successional
forests in young forest stands can be accelerated through silvicultural
practices such as thinning I examined the effects of thinning on the use of forests by bats
in the Oregon Coast Range. I used automated ultrasonic detectors to record bat calls in
50- to 100-year-old thinned and =thinned stands as well as in old-growth (2200-year-old)
stands in 11 sites in the Oregon Coast Range during the summers of 1994 and 1995. I
compared bat activity levels among the 3 stand types. In addition, I classified bat calls into
1 of 5 species groups: Eptes/Las, Myev/vo, Myyu/ca, MythCory, and Mysp. I measured
selected vegetation and environmental variables in conjunction with bat activity. I also
compared bat activity on roads with activity in the stand interior at 1 site.
Bat activity was higher in old growth than in young stands, and higher in thinned
than in =thinned stands in 1995 and over both seasons combined. I did not detect a
difference in bat activity among stand types in 1994, until I removed 1 site from the
analysis. The Mysp and MythCory species groups exhibited differences among stand
types. Bat activity along roads was higher than activity within stands.
Tree density, tree diameter, tree height, shrub cover, and shrub height varied
significantly between old-growth and young stands. Tree density, tree diameter, shrub
cover, canopy cover, and crown height varied significantly between thinned and unthinned
stands. Bat activity, overall or by species group, was significantly related to structural
variables, including mean snag diameter, mean distance from the detector to snags, and
percent shrub cover.
My results suggest that bats are sensitive to stand structure and that silvicultural
practices, such as thinning, which promote development of structural characteristics found
in old-growth stands, would benefit bat populations. Further study is needed to clarify the
habitat preferences of separate bat species and to specify habitat elements required by bat
species.Graduation date: 1997
43
Romero, Nicolas. "Seasonal influences on food availability and diet of coastal cutthroat trout in relation to riparian vegetation." Thesis, 2003. http://hdl.handle.net/1957/26772.
Full textAbstract:
Current riparian management objectives in the Pacific Northwest promote both
retention of existing conifers and conversion of hardwood-dominated areas to conifers.
Although understanding of relationships between riparian vegetation and salmonid
prey availability is growing, temporal variation in these relationships is poorly
understood. Seasonal fluxes in availability of aquatic and terrestrial invertebrate prey
for coastal cutthroat trout (Oncorhynchus clarki clarki) were investigated by
estimating invertebrate biomass from aquatic (benthos and drift) and allochthonous
(terrestrial) sources in three watersheds in the Oregon Coast Range. To investigate the
influence of vegetation type on food sources, samples were collected in each
watershed from stream sections dominated by deciduous, conifer, and mixed
vegetation. During each sample period, diet was assessed by examining gut contents
of captured trout. Stream discharge appeared to be an influential factor regulating
seasonal fluxes of aquatic invertebrate biomass in the benthos and drift. Total allochthonous invertebrate biomass at deciduous and mixed vegetation sites (64 and
61 mg·m⁻²·day⁻¹, respectively) was almost 30% higher than at coniferous sites (45
mg·m⁻²·day⁻¹). Although aquatic insects dominated the total gut contents during this
study, prey from terrestrial origin was more common during summer and fall. These
results suggest that systematic removal of deciduous vegetation in riparian zones to
promote conifers may have unintended consequences on the food resources of coastal
cutthroat trout and the productivity of aquatic food webs in the Pacific Northwest.Graduation date: 2004
44
Stussy, Rosemary J. "The effects of forage improvement practices on Roosevelt elk in the Oregon Coast Range." Thesis, 1993. http://hdl.handle.net/1957/35871.
Full textAbstract:
Forage availability, diets, distribution, and productivity were
compared for Roosevelt elk, Cervus elaphus roosevelti, using improved
(i.e. seeded, fertilized, and grazed) and untreated areas of the Oregon
Coast Range. Seasonal forage availability was substantially different
on 1-year-old improved and untreated clearcuts, but the differences
diminished by clearcut age 4 and essentially disappeared by clearcut age
7. Elk diets, as evaluated by fecal analysis, were similar in plant
species composition and DAPA concentrations on both areas. There was no
significant difference in estimated calf birth weights or survival, or
in pregnancy and lactation rates, kidney and metatarsal marrow fat
concentrations, or breeding dates of adult cows using improved and
untreated areas. Summer and winter calf ratios were similar in 7 of 8
seasons sampled. There was no significant difference in home range or
core area size, and distances traveled were similar on both areas in all
seasons except winter. Elk exposed to summer sheep grazing were
displaced an average of 1211 m (SD = 28 m) for an average of 14 weeks
(SD = 5 weeks). Elk using improved areas stayed closer to forage areas
in spring, but otherwise there was no significant difference in
proximity to forage. Elk from both areas demonstrated preferential use
of meadows, and used other forage areas in proportion to their
availability. The combined results indicated that the forage
improvement practices were ineffective in producing any measurable
benefits for elk.Graduation date: 1994
45
Christensen, M. Jo. "Effects of stream restoration on macroinvertebrate communities in an Oregon Coast Range system." Thesis, 1996. http://hdl.handle.net/1957/34985.
Full textAbstract:
Stream-restoration projects are usually designed to improve habitat quality for fishes.
These projects manipulate flow patterns, substrate distribution, and amount and
placement of large woody debris. Consequently, they also affect the size and composition
of the aquatic macroinvertebrate community. This research evaluates two types of fish
habitat restoration: off-channel structures (alcoves) and in-channel structures (log weirs).
I compared macroinvertebrate habitats and communities in natural and artificial alcoves
in Upper and South Fork Lobster Creeks, Lane Co., and examined the effects of log
weirs on in-channel habitat diversity, community composition, drift patterns, and fish
consumption of macroinvertebrates. Macroinvertebrate samples were collected from
artificial and natural alcoves using hand pumps and D-nets. Within the channel,
macroinvertebrates were collected from restored and unrestored reaches with a Hess
sampler and using a stratified random sampling scheme. Forty-eight hour invertebrate
drift samples were obtained at outlets of log-weir pools. Stomach contents were obtained
from coho salmon (Oncorhynchus kisutch) and cutthroat trout (O. clarki) in restored
reaches.
Although natural alcoves differed from artificial in location within the floodplain,
morphology, permanence, and degree of interaction with the stream channel, both alcovetypes
provided similar habitats and contained similar macroinvertebrate communities.
Average densities and diversity within the alcoves depended on habitat and time of year.
Average densities were higher in artificial than in natural. Alcoves contained 29% of
species richness within Upper Lobster Creek.
Within the stream channel, the diversity of macroinvertebrate habitat was lower in
restored than in unrestored sections. Log weirs were associated with reduced taxonomic
and functional feeding-group diversity. Composition of drift was not significantly
different in restored and unrestored areas; however, drift densities were significantly
lower in restored reaches. Diets of fishes in restored areas were composed primarily of
organisms produced from outside restored areas. Although in-channel structures may
enhance physical habitat for fishes, they may alter or reduce the availability of food for
fishes feeding on drifting invertebrates.
Recommendations are given for improving the design of stream restoration projects
with respect to macroinvertebrates; however stream restoration should focus on restoring
whole-system integrity and function, instead of targeting just one or two types of
organisms.Graduation date: 1996
46
Schwartz, John Steven. "Influence of geomorphology and land use on distribution and abundance of salmonids in a coastal Oregon basin." Thesis, 1990. http://hdl.handle.net/1957/38010.
Full text
47
Hoag, Scott Henry. "Coast Range Ophiolite near Stonyford, Northern California : evidence for normal faulting." Thesis, 2012. http://hdl.handle.net/2152/ETD-UT-2012-05-5778.
Full textAbstract:
The Franciscan Complex and Coast Range Ophiolite (CRO) are juxtaposed along the Coast Range Fault (CRF), which is steeply dipping to near vertical in the Stonyford area. The CRF has been interpreted as a thrust fault and a normal fault but no kinematic data has been presented for the Stonyford region.
The CRO locally is internally disrupted and can be described as an ophiolitic mélange. Near Stonyford, serpentinites are in contact with Great Valley sediments to the east and with Franciscan rocks to the west. Mafic volcanics are only found at a few localities with some chert and gabbros. Massive serpentinites form most of the southernmost transect while foliated serpentinite mélange dominates the northern transects.
Six structural geologic transects were made in the CRO along National Forest Service roads in the Mendocino National Forest near the Stonyford, California area. Data were collected from 21 road cuts totaling approximately 10 kilometers of CRO exposure. Exposures were typically two meters high with the main exception along Goat Mountain Road where the serpentinite was massive with outcrop heights of 10 to 20 meters. Fault plane orientations and sense of slip (where recognizable) were measured for all faults traceable for more than 10 cm. A total of 1,108 faults were measured, 414 contained lineations, and 326 had lineations with steps which determine sense of slip. Approximately two-thirds of the faults with full kinematics had evidence for normal offset. About 25% recorded reverse offset, mostly steeply dipping surfaces. Strike-slip faulting, both right and left-lateral, accounted for 10% of the data.
The ascent of the Franciscan and CRO, and upturning of the Knoxville Formation (Great Valley Group) to near vertical attitude was mostly a result of normal faulting. The Great Valley Group strata, with little internal offset by faulting, indicates the disruption of the CRO near Stonyford predates most of the normal faulting. This is consistent with pre-subduction deformation of the CRO in an oceanic fracture zone.text
48
Kirkby, Kristen-Marie S. "Distribution of juvenile salmonids and stream habitat relative to 15-year-old debris-flow deposits in the Oregon Coast Range." Thesis, 2013. http://hdl.handle.net/1957/37572.
Full textAbstract:
Debris flows, common disturbances in many mountainous areas, initially scour or bury stream habitats; however, debris flows deliver vast amounts of wood, boulders, and gravel that may ultimately form complex stream habitat to potentially support a diverse salmonid assemblage. The materials deposited by debris flows would otherwise be inaccessible to streams, and thus deposits may play an important role in creating and maintaining complex salmonid habitat over time. Despite the potential of deposits for increasing habitat complexity, most fish studies have focused on the destructive effects of debris flows and short-term recovery and re-colonization in scour zones. Debris-flows that occurred during the record-setting winter storms of 1996 in western Oregon, USA, provide an opportunity to study intermediate-term effects of debris-flow deposits on abundances and habitat for juvenile salmonids. In this setting, I surveyed salmonid abundance and habitat in three Oregon Coast Range streams that contained several debris-flow deposits from the 1996 storms. I explained fish abundance using hierarchical models, accounting for heterogeneous detection probabilities with repeated counts from multiple-pass snorkeling. The "best" hierarchical model of detection probability and abundance was selected (QAIC) from pool and snorkel-pass characteristics separately
for juvenile coho salmon (Oncorhynchus kisutch), age 0+ trout, and age 1+ trout (Oncorhynchus spp.) in each stream. Adding distance to the nearest 1996 debris-flow deposit (DDF) produced a significant drop-in-deviance for four of nine "best" models, including at least one in each stream and for each species/age-class. In these four models, salmonid abundance decreased with increasing distance from deposit. As a potential explanation, several pool habitat characteristics were correlated (Spearman's rank) with DDF. Results varied across streams, but generally, percent of substrate as bedrock was lower and boulder density and percent substrate as gravel were higher closer to deposits. Although repeat counts are increasingly used in hierarchical modeling of heterogeneous detection probabilities and abundance for other wildlife species, studies of fish often rely on uncalibrated, single-pass snorkel counts. When exploring the value of repeat counts, I found that juvenile salmonid abundance decreased with increasing distance from debris-flow deposits in more multiple-pass hierarchical models that accounted for heterogeneous detection probabilities than for single-pass models that did not. Thus, modeling heterogeneous detection probabilities with repeated snorkel counts may be beneficial in other situations, addressing limitations of uncalibrated indices without relying on methods such as electrofishing, which may be difficult or impossible for remote study areas, longer surveys, or sensitive species. My findings suggest that debris-flow deposits may influence salmonid abundances after 15 years, and support management of debris flow-prone hillslopes and low-order channels to deliver elements of stream habitat complexity.Graduation date: 2013
49
Born, Robert Gregory. "Production and cost analysis of a helicopter thinning operation in the Oregon Coast Range and comparison to HELIPACE production estimates /." 1995. http://hdl.handle.net/1957/11237.
Full text
50
Fedora, Mark A. "Simulation of storm runoff in the Oregon Coast Range /." 1987. http://hdl.handle.net/1957/9498.
Full text