A first-order approximation is made of the frequency and magnitude of bedload transport downstream of the Pelton-Round Butte Dam Complex, lower Deschutes River, Oregon with implications for salmonid spawning habitat. Field measurements of channel hydraulics, geometry, and particle size were combined with one-dimensional hydraulic and bedload transport models to determine the streamflow needed to move the channel bed material and to predict how much material would move once bedload transport was initiated. Inflows and outflows from the Dam Complex, and the predicted bedload carried by each, were compared to evaluate the effect of the Dam Complex on downstream discharge and bedload transport. Predicted critical discharges were equaled or exceeded very infrequently during the 72-year streamflow record. In addition, discharges capable of transporting bed material exceeded threshold conditions by very little. This has resulted in low predicted rates and amounts of bedload transport over the period of record. The Pelton-Round Butte Dam Complex was found to slightly increase the magnitude of flood peaks and associated predicted bedload transport for post-dam transport events exceeding threshold transport conditions. An exception to this pattern was the effect of the Dam Complex on the flood of December 1964, the second largest flood on record. This large flood occurred under unique circumstances -- while the reservoir of Round Butte Dam was filling for the first time. Since none of the transport events that occurred after the reservoir finished filling were affected by the Dam Complex in the same way as the 1964 event, the influence of the Complex on the 1964 flood is considered unique. The two largest floods on record (1964 and 1996), despite their relatively large sizes with respect to all other recorded flood events, did not cause major morphological changes to the lower Deschutes River. This observation, along with other independently derived information, supports the conclusion that the lower Deschutes is a very stable river. / Graduation date: 1998

This is a thesis based on the idea that things in our environment, through neglect or ignorance, become invisible, despite an essence of virtue. The idea stems from the literary work of Fyoder Dostoevsky, particularly his depictions of fallen women. In stories such as “Notes from the Underground,” Liza, the prostitute, is his most virtuous character. My exploration of this idea culminates in the design of an advocacy center for the community of Maywood, California and the Los Angeles River, including a gathering center in which residents of the community and environmentalists may come together on equal social footing.

Thesis (Ph.D.)--Harvard University, 1999. / Adviser: Philip Kuhn. Includes bibliographical references.

The Chattahoochee River begins in the Appalachian Mountains in northeast Georgia, flows through Atlanta, and then turns south to form the Georgia/Alabama state line. There are many dams along the river to help supply power, and many recreational areas. Most importantly, the Chattahoochee River provides 70% of metropolitan Atlanta’s drinking water. With all of these benefits, we should be protecting the river, but we are not. The water is polluted and gets more polluted the further south you go. In my photographs, I want to bring this to people’s attention. I used photographic negatives “damaged” in water to print my final photographs, hoping the resulting images would awaken viewers’ interest. I want to add my voice to that of other artists who work with water issues, such as Joe Cooks, Alex Kirkbride, and Yin Xiuzhen, and show how the shortage of clean water is not just a local problem for the city of Atlanta, but also a global problem.

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This is a thesis based on the idea that things in our environment, through neglect or ignorance, become invisible, despite an essence of virtue. The idea stems from the literary work of Fyoder Dostoevsky, particularly his depictions of fallen women. In stories such as “Notes from the Underground,” Liza, the prostitute, is his most virtuous character. My exploration of this idea culminates in the design of an advocacy center for the community of Maywood, California and the Los Angeles River, including a gathering center in which residents of the community and environmentalists may come together on equal social footing.

Thesis (M.A.)--University of Wisconsin--Madison, 1975. / Description based on print version record. Includes bibliographical references.

Thesis (Ph. D.)--University of Missouri-Columbia, 2001. / Typescript. Vita. Includes bibliographical references (leaves 206-223). Also available on the Internet.

Typescript. Includes vita and abstract. Includes appendix: ArcGIS VBA script code. Includes bibliographical references (leaves 106-108). Also available online in Scholars' Bank.

Thesis--University of Chicago. / Bibliography: p. 158-164.