Thesis (M.S. - Hydrology and Water Resources)--University of Arizona, 1982. / Includes bibliographical references (leaves 136-142).

Thesis (Ph.D.)--University of Tulsa, 1991. / Bibliography: leaves 251-255.

Thesis (Ed.D.)--Teachers College, Columbia University, 1996. / Typescript; issued also on microfilm. Accompanying materials in Spanish. Sponsor: Robert Taylor. Dissertation Committee: Robert McClintock. Includes bibliographical references (leaves 125-135).

Turbulent flow inside a street canyon was investigated in an open circuit wind tunnel and in a blow-down wind channel. Two geometries were used for comparison purposes: buildings with pitched roofs and with flat roofs. Both generate the flow of a different category, so the induced ventilation regimes are fundamentally different. Quadrant, Fourier and Wavelet analysis, Proper Orthogonal Decomposition (POD) and vortex detection methods are used to identify coherent structures in the flow and establish their impact on the ventilation of pollution. Two types of the organised motions are detected: the compact areas of sweep and ejection with the scale comparable to the size of building and the small vortices generated in the shear layer behind the building roof. POD identifies the most dominant modes with high coherency in the flow and evaluates the relative contributions of each mode to the overall kinetic energy of turbulence. Rigorous analysis of the correctness of the physical interpretation for such a decomposition is carried out. Wavelet analysis is applied to the time-series of the POD expansion coefficients in order to reveal control mechanism of the dynamics of the modes. Vorticity, calculated from the original velocity data, is decomposed by POD as well. Finally, the correlation between the vorticity...

In 2011, vertical and longitudinal gradients of temperature, oxygen, pH, conductivity and chlorophyll were measured in the Římov Reservoir. Relative distance model was employed to evaluate spatial heterogeneity of parameters measured along the longitudinal axis of the reservoir. The inflow part comprised 15 % of the overall reservoir length and was characterized with temperature, pH and chlorophyll values lower than the rest of the reservoir. Highest chlorophyll and dissolved oxygen concentrations along with pH were measured in the transition zone constituting 40 % of the reservoir length. Lacustrine zone with low chlorophyll concentration accounted for 45 % of the reservoir. It was characterized with pronounced metalimnetic and hypolimnetic oxygen minima during summer as well as the marked increase in conductivity towards bottom.

abstract: I investigate the Black Canyon City landslide (BCC landslide), a prominent deep-seated landslide located northeast of Black Canyon City, Arizona. Although the landslide does not appear to pose a significant hazard to structures, its prominent features and high topographic relief make it an excellent site to study the geologic setting under which such features develop. This study has the potential to contribute toward understanding the landscape evolution in similar geologic and topographic settings, and for characterizing the underlying structural processes of this deep-seated feature. We use field and remotely-based surface geology and geomorphological mapping to characterize the landslide geometry and its surface displacement. We use the Structure from Motion (SfM) method to generate a 0.2 m resolution digital elevation model and rectified ortho-photo imagery from unmanned aerial vehicle (UAV) - and balloon-based images and used them as the base map for our mapping. The ~0.6 km2 landslide is easily identified through remotely-sensed imagery and in the field because of the prominent east-west trending fractures defining its upper extensional portion. The landslide displaces a series of Early and Middle Miocene volcanic and sedimentary rocks. The main head scarp is ~600 m long and oriented E-W with some NW-SE oriented minor scarps. Numerous fractures varying from millimeters to meters in opening were identified throughout the landslide body (mostly with longitudinal orientation). The occurrence of a distinctive layer of dark reddish basalt presents a key displaced marker to estimate the long-term deformation of the slide mass. Using this marker, the total vertical displacement is estimated to be ~70 m, with maximum movement of ~95 m to the SE. This study indicates that the landslide motion is translational with a slight rotational character. We estimate the rate of the slide motion by resurvey of monuments on and off the slide, and examination of disturbed vegetation located along the fractures. The analysis indicates a slow integrated average landslide velocity of 10-60 mm/yr. The slide motion is probably driven during annual wet periods when increased saturation of the slide mass weakens the basal slip surface and the overall mass of the slide is increased. Results from our study suggest that the slide is stable and does not pose significant hazard for the surrounding area given no extreme changes in the environmental condition. Although the landslide is categorized as very slow (according to Cruden and Varnes, 1996), monitoring the landslide is still necessary. / Dissertation/Thesis / Masters Thesis Geological Sciences 2016

This study integrates settlement and community archaeology in investigating pre-colonial Stó:lō-Coast Salish community organization between 2,550-100 years before present (cal B.P.). Archaeological housepits provide a basic unit of analysis and proxy for households through which community organization manifests in relationships of form and arrangement among housepit settlements in the lower Fraser River Watershed of southwestern British Columbia. This study focuses on spatial and temporal data from 11 housepit settlements (114 housepits) in the upriver portion of the broader study area (mainland Gulf of Georgia Region). These settlements were mapped and tested as part of the Fraser Valley Archaeology Project (2003-2006). The findings of this study suggest a trajectory of continuity and change in community organization among the Stó:lō-Coast Salish over the 2,500 years preceding European colonization. Shifts between heterarchical and hierarchical forms of social organization, and corporate to network modes of relations represent societal transformations that become expressed by about 550 cal B.P. Transformations of social structure and community organization are manifest as increasing variation in housepit sizes and settlement patterns, and the development of central arrangements in both intra- and inter-settlement patterns. In the Late Period (ca. 550-100 cal. B.P.), the largest and most complex settlements in the region, including the largest housepits, develop on islands and at central places or hubs in the region’s communication system along the Fraser River. These complex sets of household relations within and between settlements represent an expansive form of community organization. Tracing this progression provides insight into the process of change among Stó:lō pithouse communities. Societal change develops as a shift expressed first at a broad-based collective level between settlements, and then at a more discreet individual level between households. This process speaks to the development of communities formed within a complex political-economic system widely practiced throughout the region. This pattern survived the smallpox epidemic of the late 18th century and was maintained by the Stó:lō up to the Colonial Era. Administration of British assimilation policies (e.g., Indian Legislation) instituted after 1858 effectively disrupted but failed to completely replace deeply rooted expressions of Stó:lō community that developed during preceding millennia. / Arts, Faculty of / Anthropology, Department of / Graduate

The management of South Africa's heritage resources is still lacking a great deal and many resources are being destroyed by ignorance, development and plain greed. Although South African legislation is adequate in theory, commitment on the side of the government in terms of staff, skills and resources to implement it, is not forthcoming. On the global platform however, we have much to learn as heritage management is regarded as a priority in most of the first world countries. Four steps to reach this goal, is summarizing it effectively: the identification, understanding how it was created and used, selecting the appropriate conservation techniques, and stakeholder involvement. The focus of this study is on the diverse heritage resources of the Blyde Canyon Nature Reserve in Mpumalanga, the largest green canyon in the world. This area has a rich, irreplaceable and unexplored cultural heritage. The tangible and intangible values were classified in a typological framework, including archaeology (stone age and iron age), rock art, historical industrial features, sacred sites, monuments, burial sites, graves and historic tourist features. Authorities are in the process of changing the status of the Nature Reserve to that of a National Park and it is also envisioned to nominate this unique natural and cultural landscape for World Heritage status. The database and overall objectives of this study has been identified to highlight the relevance and importance of the cultural heritage resources and to ensure its future protection and management. This area is already a popular tourist destination which is currently under-utilised, and by contributing to the protection and responsible development of the heritage resources, and by having the correct management principles set in place, the visitor experience will not only be enhanced but the surrounding towns and communities will benefit extensively. Copyright / Dissertation (MHCS)--University of Pretoria, 2010. / Historical and Heritage Studies / unrestricted

The main goal of this project is to develop a curriculum for hitting by designing an instructional web site and evaluation unit for high school baseball players at Canyon Springs High School.

This teaching unit consists of pre and post field trip activities for the Big Morongo Canyon Preserve in Morongo Valley, California. The lessons provide background information to teachers and provide classroom activities on the desert and wetland environments. The lessons can be easily adapted for kindergarten through sixth grades.