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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Debris Flow Susceptibility Map for Mount Rainier, Washington Based on Debris Flow Initiation Zone Characteristics from the November, 2006 Climate Event in the Cascade Mountains

Lindsey, Kassandra 29 December 2015 (has links)
In November 2006 a Pineapple Express rainstorm moved through the Pacific Northwest generating record precipitation, 22 to 50 cm in the two-day event on Mt. Rainier. Copeland (2009) and Legg (2013) identified debris flows in seven drainages in 2006; Inter Fork, Kautz, Ohanapecosh, Pyramid, Tahoma, Van Trump, and West Fork of the White River. This study identified seven more drainages: Carbon, Fryingpan, Muddy Fork Cowlitz, North Puyallup, South Mowich, South Puyallup, and White Rivers. Twenty-nine characteristics, or attributes, associated with the drainages around the mountain were collected. Thirteen were used in a regression analysis in order to develop a susceptibility map for debris flows on Mt. Rainier: Percent vegetation, percent steep slopes, gradient, Melton's Ruggedness Number, height, area, percent bedrock, percent surficial, percent glacier, stream has direct connection with a glacier, average annual precipitation, event precipitation, and peak precipitation. All variables used in the regression were measured in the upper basin. Two models, both with 91% accuracy, were generated for the mountain. Model 1 determined gradient of the upper basin, upper basin area, and percent bedrock to be the most significant variables. This model predicted 10 drainages with high potential for failure: Carbon, Fryingpan, Kautz, Nisqually, North Mowich, South Mowich, South Puyallup, Tahoma, West Fork of the White, and White Rivers. Of the remaining drainages 5 are moderate, 10 are low, and 9 are very low. Model 2 found MRN (Melton's Ruggedness Number) and percent bedrock to be the most significant. This model predicted 10 drainages with high potential for failure during future similar events: Fryingpan, Kautz, Nisqually, North Mowich, Pyramid, South Mowich, South Puyallup, Tahoma, Van Trump, and White Rivers. Of the remaining drainages, 6 are moderate, 9 are low, and 9 are very low. The two models are very similar. Initiation site elevations range from 1442 m to 2448 m. Six of the thirteen initiation sites are above 2000 m. Proglacial gully erosion initiated debris flows seem to occur at all elevations. Those debris flows initiated partially by landslides occur between 1400 and about 1800 m. The combined regression analysis model for the Mt. Rainier, Mt. St. Helens, Mt. Hood, and Mt. Adams raised the predictive accuracy from 69% (Olson, 2012) to 77%. This model determined that percent glacier/ice and percent vegetation were the most significant.
2

Slope stability as related to geology at Rainier, Columbia County, Oregon

Gless, James Douglas 01 January 1989 (has links)
Rainier, Oregon, has experienced problems in the development of residential and commercial sites, utilities, and transportation facilities as a result of slope instability. This study of slope stability at Rainier was conducted at the request of city officials.
3

Admiral Peter Rainier and the command of the East Indies Station 1794-1805

Ward, Peter January 2010 (has links)
Peter Rainier was the longest serving commander on the East Indies station by some margin, and the longest serving commander of any of the navy’s stations in the long Revolutionary and Napoleonic Wars. This thesis illustrates the issues that needed to be addressed on this station and considers how successfully Rainier dealt with them. It will also suggest that he remains so little known amongst the pantheon of British admirals of the Napoleonic era because the traditional measure of value of a naval commander is success in battle. Although Rainier had a reputation as a fighting captain, as a commander in chief he saw action only in combined operations. Perhaps it is time to acknowledge that skill other than fighting battles is important. Rainier’s thorough knowledge of the station, his capacity to work with people over whom he had no authority, his ability to protect a rapidly expanding and wealth creating trade, and his administrative and financial professionalism, enabled him to play an important, if secondary, part in the establishment of the Second British Empire which, arguably, had a far greater impact on British history than all but the most seminal battle. The East Indies Station had a number of unique elements that heavily influenced the actions of its commander in chief. The two-way communication process between Rainier and the Admiralty could take a whole year. Its thirty million plus square mile area meant that communication and logistics within the station needed long term planning. It was still relatively unfamiliar to British navigators, and charting it was still in progress. The relationship between the admiral and the East India Company, the official government of British India, could make or break the success of both the navy and the Company. With his diplomatic skills and wide experience of the station, Rainier worked with its officials and army commanders to defend current British possessions in the East Indies and India, to extend them to such an extent that, by his return to Britain, they were the foundation of the second British Empire. During this period the centre of power on the station moved eastwards as the value of trade with China overtook that with India – Rainier had to take this into account when allocating his resources. The constraints on navigation and timing caused by the narrow channels in the East Indies and by the weather made it easier for enemy vessels to know by which route the British trade would travel. Rainier had to cover potential threats off Macao, through the Straits of Bali, Banda, Sunda and Malacca, in the Bay of Bengal, off Madras, around Ceylon and between Bombay and the Persian Gulf. When possible he had to cover the French naval base at Mauritius. With a limited number of vessels, of which some were always in need of repair, Rainier was often on the defensive. Acquisition of new colonies opened new trading routes which, together with his commitment to trade protection, led to a steady, if often unregulated, expansion in British trade. His attention to detail and his management skills also allowed him to establish an efficient logistics, victualling and financial operation. What Rainier achieved has to be seen in the context of the complexity of his station and the role of the East India Company. Then it stands far above the level of its absolute achievement. This thesis shows that Rainier’s organization and man management skills, unruffled nature, sound strategic judgement made him a “Safe Pair of Hands”, ideal for such a detached but important command.
4

Effects of hydrology on zooplankton communities in high mountain ponds, Mount Rainier National Park

Girdner, Scott F. 06 April 1994 (has links)
Ten high mountain ponds in Mount Rainier National Park, Washington State, were studied from June through September 1992 to investigate the influences of fluctuating pond volumes on zooplankton communities. A temporary pond of short wet phase duration was inhabited by zooplankton taxa with short generation times and a crustacean taxa with the ability to encyst as drought-resistant resting bodies at immature stages of development. Relative to permanent ponds, rotifer densities typically were low in temporary ponds, although Brachionus urceolaris was abundant shortly before the ponds dried. High volume loss was associated with declining populations of crustaceans. Daphnia rosea was not present in the crustacean communities of temporary ponds after fall recharge. Deep-permanent ponds had slower copepod development and two additional large bodied crustacean taxa relative to shallow-permanent ponds. Because of their small sizes and sensitivity to environmental change, ponds such as these may provide an early signal of changes in aquatic systems from global warming. / Graduation date: 1994
5

'O Hidden Face!' : an analysis and contextualisation of Priaulx Rainier's 'Requiem'

Van Rhyn, Chris 03 1900 (has links)
Thesis (MMUS (Music))--Stellenbosch University, 2010. / ENGLISH ABSTRACT: The South African-born British composer Priaulx Rainier (1903-1986) wrote her Requiem (1955-1956) for solo tenor and choir to a text by surrealist poet David Gascoyne. The poem (completed in 1940) contradicts the commemorative genre of the requiem and instead anticipates the prospective victims of the war that was to come. Due to the disturbances caused by the war, Rainier only started working on the music fifteen years later in 1955. Existing discourse on Rainier has been shaped by the thoughtless regurgitation of opinions, reviews and clichéd biographical models. Since very few detailed analyses of Rainier’s works exist, this thesis attempts to address this gap in research on this composer. It therefore aims to contribute to a more balanced, evidence-based discourse. The significance of the Requiem is that it was said by commentators to indicate a period of increasing abstraction in Rainier’s oeuvre. The findings regarding tonality in this work may therefore serve as a point of reference in future analyses of works preceding and following the Requiem. In the literature review, recurring issues in the discourse on Rainier (such as the numerous references to her childhood in Natal as an influence on her works and the descriptions of her works as possessing a masculine gender identity) is highlighted. The contextualisation that follows includes a reception-based periodisation of Rainier’s works and a “biography” of the Requiem, with a special focus on the intersection between the symbolic world of David Gascoyne and the Requiem and the sculptor Barbara Hepworth’s influence on Rainier’s work. Underpinning these contextual considerations is a set theory analysis of the work that attempts to illustrate the composer’s aspiration towards musical abstraction as a creative force. The findings of the analysis are also contextualised with regard to existing notions of Rainier’s style and tonality in her music. / AFRIKAANSE OPSOMMING: Die Suid-Afrikaans gebore Britse komponis Priaulx Rainier (1903-1986) se Requiem (1955-1956) vir solo-tenoor en koor is ’n toonsetting van ’n gedig deur die surrealistiese digter David Gascoyne. Die gedig weerspreek die gedenkende karakter van die requiem genre deurdat dit vooruitwys na die slagoffers van die oorlog wat op hande was. As gevolg van die onderbrekings wat deur die oorlog veroorsaak was, het Rainier eers vyftien jaar later, in 1955, aan die musiek begin werk. Die ondeurdagte herhaling van opinies, resensies en biografiese clichés kenmerk huidige diskoers oor Rainier. Aangesien daar min gedetailleerde analises van Rainier se werke in die literatuur bestaan, poog hierdie tesis om bestaande leemtes in die navorsing oor Rainier te vul. Dit streef ook na die ontwikkeling van ’n meer gebalanseerde, bewysgebaseerde diskoers. Die belang van hierdie werk setel hoofsaaklik daarin dat dit volgens sommige bronne dui op ’n kenteringsmoment in Rainier se oeuvre, waarna haar werke meer abstrak geword het. Die bevindinge rakende tonaliteit in hierdie werk kan dus dien as ’n verwysingspunt vir toekomstige analises van Rainier se werke wat die Requiem voorafgaan en volg. Herhalende elemente in die diskoers oor Rainier (soos die invloed van haar kinderjare in Natal op haar werke en die beskrywings van ’n manlike gender-identeit in haar werke) word in die literatuurstudie uitgelig. Die konstekstualisering wat volg bestaan uit ’n literatuur-gebaseerde periodisering van haar werke en ’n “biografie” van die Requiem wat fokus op die verhouding tussen simboliek in die werke van David Gascoyne en die Requiem en die invloed van die beeldhouer Barbara Hepworth op Rainier se werke. Die kontekstualisering word gevolg deur ’n ‘set’-teorie-analise van die werk waarin gepoog word om die komponis se strewe na musikale abstraksie as kreatiewe inspirasie aan te toon. Die bevindinge van die analise word dan vergelyk met die bestaande opvattinge oor styl en tonaliteit in Rainier se werke. / COMPOSITIONS: In Paradisum for SATB choir 2 Droom for mezzo-soprano and piano: 11 • Kuspad 14 • Sy 17 • Glasblaser 20 • Glasprater 23 String trio arrangements from Droom: • Glasblaser 26 • Glasprater 30 Het Hom! for tenor saxophone 34 The beauty in sorrow for string quartet: 37 • First Movement 40 • Second Movement 49 • Third Movement 54 Symphonata for orchestra: 61 • First Movement 62 • Second Movement 66 • Third Movement 71 • Fourth Movement 77
6

Volcanic risk assessments : integrating hazard and social vulnerability analysis

Hayes, Sara Louise January 2011 (has links)
The vulnerability of communities at risk from volcanic activity at Volcan Tungurahua, Ecuador and Mount Rainier in the USA provided the focus for this thesis. The research aimed to develop an integrated approach to risk assessments that combined both hazard and vulnerability analysis. In phase one, the study developed a novel methodology to assess volcanic threat that utilised previously published data. This semi-quantitative approach integrated measures of both hazard and exposure factors, allowing the relative threat to different communities to be ranked. By avoiding the complex quantitative analysis associated with traditional risk assessments of the multiple hazards associated with volcanic activity, this methodology may be applied where comprehensive historic and geological data may be lacking, as well as facilitating understanding amongst non-specialists and members of the public. The second phase of the research investigated human vulnerability, with an exploratory study carried out in Ecuador. This utilised a questionnaire survey aimed at eliciting an individual’s beliefs and attitudes towards volcanic risk, which provided the basis for a more comprehensive exploration of social vulnerability conducted in the USA. This investigated further the role of socio-economic features and psychological characteristics, such as risk perception, hazard salience and self-efficacy, in promoting self-protective behaviour, and examined the relative importance of these factors in determining vulnerability. The theoretical underpinnings of this research suggest that individuals with certain socio-economic characteristics may incur greater losses during a disaster, whilst perceptual processes may influence how an individual responds to a hazardous event. Little evidence was found to support the socio-economic model of vulnerability, which prevented the integration of the two research phases. However, perceptual factors were found to be significant predictors in the adoption of protective hazard adaption. This suggests that targeting risk mitigation and communication strategies to address these psychological constructs may be more important for reducing overall vulnerability than focusing efforts towards specific socio-economic groups.
7

Habitat segregation of two ambystomatids in mountain ponds, Mount Rainier National Park

Brokes, Brendan J. 07 October 1999 (has links)
Ambystoma macrodactylum (long-toed salamander) and A. gracile (northwestern salamander) are two common salamander species occupying key trophic positions in mountain ponds of Mount Rainier National Park. The objective of this research was to document and evaluate the distributions and abundances of the two species, relative to habitat characteristics of ponds in the park. Amphibian distributions and abundances were assessed in 20 ponds from June through September 1993 to 1996. Nutrient concentrations (total nitrogen, Kjeldahl-N, total phosphorus, and orthophosphate-P), habitat characteristics (surface area, depth, elevation, substratum organic content lost on ignition, amount of coarse woody debris, aquatic vegetation, and bottom firmness), and water quality (temperature, dissolved oxygen, alkalinity, conductivity, and pH) were measured. Distinct habitat associations were found for each Ambystoma species. Ponds with one species only were different in surface area, maximum depth, substratum organic content, and elevation. Ponds with A. macrodactylum were small, shallow, high in elevation, and had firm sediments low in organic matter relative to A. gracile ponds. Ambystoma macrodactylum ponds typically contained little coarse woody debris relative to the amount of aquatic vegetation. Ambystoma gracile ponds were large, deep, low in elevation, had flocculent sediment high in organic content, abundant coarse woody debris, and little aquatic vegetation relative to A. macrodactylum ponds. Two ponds supported reproducing populations of both species and exhibited habitat characteristics intermediate to the allopatric pond types. These findings suggest that habitat complexity plays an important role in the segregation of A. macrodactylum and A. gracile. / Graduation date: 2000
8

Debris flows in glaciated catchments : a case study on Mount Rainier, Washington

Legg, Nicholas T. 15 March 2013 (has links)
Debris flows, which occur in mountain settings worldwide, have been particularly damaging in the glaciated basins flanking the stratovolcanoes in the Cascade Range of the northwestern United States. This thesis contains two manuscripts that respectively investigate the (1) initiation processes of debris flows in these glaciated catchments, and (2) debris flow occurrence and its effect on valley bottoms over the last thousand years. In a 2006 storm, seven debris flows initiated from proglacial gullies of separate basins on the flanks of Mount Rainier. Gully heads at glacier termini and distributed collapse of gully walls imply that clear water was transformed to debris flow through progressive addition of sediment along gully lengths. In the first study, we analyze gully changes, reconstruct runoff conditions, and assess spatial distributions of debris flows to infer the processes and conditions necessary for debris flow initiation in glaciated catchments. Gully measurements suggest that sediment bulking requires steep gradients, abundant unstable material, and sufficient gully length. Reconstruction of runoff generated during the storm suggests that glaciers are important for generating the runoff necessary for debris flow initiation, particularly because infiltration capacities on glacial till covered surfaces well exceed measured rainfall rates. Runoff generation from glaciers and abundant loose debris at their termini explain why all debris flows in the storm initiated from proglacial areas. Proglacial areas that produced debris flows have steeper drainage networks with significantly higher elevations and lower drainage areas, suggesting that debris flows are associated with high elevation glaciers with relatively steep proglacial areas. This correlation reflects positive slope-elevation trends for the Mount Rainier volcano. An indirect effect of glacier change is thus the change in the distribution of ice-free slopes, which influence a basin’s debris flow potential. These findings have implications for projections of debris flow activity in basins experiencing glacier change. The second study uses a variety of dating techniques to reconstruct a chronology of debris flows in the Kautz Creek valley on the southwest flank of Mount Rainier (Washington). Dendrochronologic dating of growth disturbances combined with lichenometric techniques constrained five debris flow ages from 1712 to 1915 AD. We also estimated ages of three debris flows ranging in age from ca. 970 to 1661. Run-out distances served as a proxy for debris flow magnitude, and indicate that at least 11, 2, and 1 debris flow(s) have traveled at least 1, 3, and 5 km from the valley head, respectively since ca. 1650. Valley form reflects the frequency-magnitude relationship indicated by the chronology. In the upper, relatively steep valley, discrete debris flow snouts and secondary channels are abundant, suggesting a process of debris flow conveyance, channel plugging, and channel avulsion. The lower valley is characterized by relatively smooth surfaces, an absence of bouldery debris flow snouts, few secondary channels, and relatively old surface ages inferred from the presence of tephra layers. We infer that the lower valley is deposited on by relatively infrequent, large magnitude, low-yield strength debris flows like an event in 1947, which deposited wide, tabular lobes of debris outside of the main channel. Debris flows during the Little Ice Age (LIA) predominantly traveled no further than the upper valley. Stratigraphic evidence suggests that the main Kautz Creek channel was filled during the LIA, enhancing debris flow deposition on the valley surface and perhaps reducing run-out lengths. Diminished areas and gradients in front of glaciers during the LIA also likely contributed to decreased run-out lengths. These findings suggest that changes in debris flow source and depositional zones resulting from temperature and glacier cycles influence the magnitude and run-out distances of debris flows, and the dynamics of deposition in valley bottoms. / Graduation date: 2013
9

Soil erosion and vegetation loss accelerated by visitor use of Paradise Meadows, Mount Rainier National Park /

Fritzke, Susan L. January 1992 (has links)
Thesis (M.S.)--Oregon State University, 1992. / Typescript (photocopy). Includes bibliographical references (leaves 51-56). Also available via the World Wide Web.
10

Investigating Technological Organization at the Buck Lake Site (45PI438) in Mount Rainier National Park Using a Lithic Debitage Analysis

Schurke, Michael Charles 01 January 2011 (has links)
Few lithic analyses have been conducted or published on collections from Mount Rainier National Park (MORA). This study's lithic debitage analysis, and investigation of hunter-gatherer technological organization through time, contributes to the knowledge base and understanding of how hunter-gatherers used subalpine environments in MORA. The debitage sample is from archaeological excavations between 2005 and 2007 at a Buck Lake Site (45PI438) activity area in the subalpine environmental zone. Two cultural components were examined: the pre-Mount St. Helens Yn tephra component (before 3500 RCYBP) is thought to represent a forager-like mobility strategy and the post-Mount St. Helens Yn tephra component (after 3500 RCYBP) is thought to represent a collector-like strategy. Expectations theoretically grounded in hunter-gatherer mobility, tool design, raw material procurement, site function, and tool function were developed and tested. Results suggest that hunter-gatherers at Buck Lake relied on and maintained small, lightweight, transported bifaces made of nonlocal raw material regardless of expected changes in mobility strategy through time. For both foragers and collectors at Buck Lake, similar lithic raw material availability, terrain, and seasonality constraints and a common resource acquisition goal and overlapping site function resulted in similar hunter-gatherer technological organization strategies. Slight differences between the cultural components include: the use of more local igneous raw material in the forager-like component, the use of a more expedient technology in the collector-like cultural component, and smaller size debitage in the forager-like component. The use of expedient bipolar technology in both cultural components is possible, but only partially supported. Evidence of bipolar technology would suggest that hunter-gatherers were conserving nonlocal CCS by using the bipolar technique on exhausted transported tools or cached cores to produce expedient flakes used for small-game hunting and processing. Further research for the Buck Lake site should include: the sourcing of raw material; conducting experimental lithic reduction on toolstone found at Buck Lake to produce comparative debitage specimens; and increasing the lithic analysis sample size to include debitage recovered from 2008-2009 excavations and other artifact types.

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