Lau, Stephen Po Wing. / "August 2011." / Thesis (M.Phil.)--Chinese University of Hong Kong, 2011. / Includes bibliographical references (leaves 62-66). / Abstracts in English and Chinese. / List of figures --- p.vi / List of tables --- p.ix / Chapter Chapter 1: --- Background --- p.1 / Chapter Chapter 2: --- Changes in Rainfall Characteristics in Hong Kong --- p.3 / Chapter 2.1 --- Introduction --- p.3 / Chapter 2.2 --- Data --- p.5 / Chapter 2.3 --- Method --- p.6 / Chapter 2.3.1 --- Linear Regression Analysis --- p.8 / Chapter 2.3.2 --- Empirical Mode Decomposition --- p.9 / Chapter 2.4 --- Result --- p.12 / Chapter 2.4.1 --- Rainfall Rate Categories --- p.12 / Chapter 2.4.2 --- Rainfall Events Statistics --- p.20 / Chapter 2.4.3 --- Diurnal Variation --- p.26 / Chapter 2.4.4 --- Rainfall Rate Distribution --- p.30 / Chapter Chapter 3: --- Reflectivity-rainfall Rate Relationships in Hong Kong --- p.33 / Chapter 3.1 --- Introduction --- p.33 / Chapter 3.2 --- Data --- p.35 / Chapter 3.3 --- Method --- p.37 / Chapter 3.3.1 --- Linear Regression Analysis --- p.37 / Chapter 3.4 --- Result --- p.38 / Chapter 3.4.1 --- Comparison of Rainfall Rate from Various Sources --- p.39 / Chapter 3.4.2 --- Raindrop Size Distributions under Various Classification Schemes --- p.42 / Chapter 3.4.3 --- Z-R Relationships Derived from Various Sources --- p.48 / Chapter Chapter 4: --- Conclusion --- p.58 / Bibliography --- p.62

Thesis (M.S.)--University of Hawaii at Manoa, 2004. / Includes bibliographical references (leaves 290-291). Also available via World Wide Web.

Thesis (Ph. D.)--University of Oregon, 1999. / Typescript. Includes vita and abstract. Includes bibliographical references (leaves 59-60). Also available for download via the World Wide Web; free to University of Oregon users. Address: http://wwwlib.umi.com/cr/uoregon/fullcit?p9948027.

Flash floods caused by localized thunderstorms are a natural hazard of the semi -arid Southwest, and many communities have responded by installing ALERT flood forecasting systems. This study explored a rainfall- runoff modeling approach thought to be appropriate for forecasting in such watersheds. The kinematic model KINEROS was evaluated because it is a distributed model developed specifically for desert regions, and can be applied to basins without historic data. This study examined the accuracy of KINEROS under data constraints that are typical of semi -arid ALERT watersheds. The model was validated at the 150 km2, semi -arid Walnut Gulch experimental watershed. Under the conditions examined, KINEROS provided poor simulations of runoff volume and peak flow, but good simulations of time to peak. For peak flows, the standard error of estimate was nearly 100% of the observed mean. Surprisingly, when model parameters were based only on measurable watershed properties, simulated peak flows were as accurate as when parameters were calibrated on some historic data. The accuracy of KINEROS was compared to that of the SCS model. When calibrated, a distributed SCS model with a simple channel loss component was as accurate as KINEROS. Reasons for poor simulations were investigated by examining a) rainfall sampling errors, b) model sensitivity and dynamics, and c) trends in simulation accuracy. The cause of poor simulations was divided between rainfall sampling errors and other problems. It was found that when raingage densities are on the order of 1/20 km2, rainfall sampling errors preclude the consistent and reliable simulation of runoff from localized thunderstorms. Even when rainfall errors were minimized, accuracy of simulations were still poor. Good results, however, have been obtained with KINEROS on small watersheds; the problem is not KINEROS itself but its application at larger scales. The study also examined the hydrology of thunderstorm -generated floods at Walnut Gulch. The space -time dynamics of rainfall and runoff were characterized and found to be of fundamental importance. Hillslope infiltration was found to exert a dominant control on runoff, although flow hydraulics, channel losses, and initial soil moisture are also important. Watershed response was found to be nonlinear.

No description available.

Thesis (M.S. - Hydrology)--University of Arizona. / Includes bibliographical references (leaves 50-52).

Thesis (Ph. D.)--University of New South Wales, 2002. / Also available online.

Thesis (M. Phil.)--University of Hong Kong, 1992.

Thesis (Ph. D.)--North Carolina State University, 1993. / Vita. Includes bibliographical references.

Thesis (Ph. D.)--Agricultural University, Wageningen, 1987. / Summaries in English and Dutch. Includes vita. Errata slip inserted. Includes bibliographical references (p. 163-169).