A description is given of the development and application of a computer program to simulate the streamflows in Mission Creek. This program provides a mathematical hydrologic model of the Mission Creek basin and is applied to 16 years of record between 1948 and 1971. The length of record for a year is normally from 31 March to 30 September inclusive. The model has been utilized to study the mechanisms for generating runoff, particularly rain runoff, the relationship between evapotranspiration and elevation; and the effectiveness of certain areas of the basin in generating runoff. The sensitivity and range of the parameters used in the model have been examined and techniques for predicting the parameters have been developed. Hydrologic areas of concern in the model are: snowmelt, evapotranspiration, runoff from rainfall and soil moisture deficiency. / Applied Science, Faculty of / Civil Engineering, Department of / Graduate

Thesis (M.S.)--State University of New York at Binghamton, Department of Geological Sciences and Environmental Studies, 2009. / Includes bibliographical references.

Trends in streamflow extremes at a regional scale linked to the possible influences of four major oceanic-atmospheric oscillations are analyzed in this study. Oscillations considered include: El Niño Southern Oscillation (ENSO), Pacific Decadal Oscillation (PDO), Atlantic Multidecadal Oscillation (AMO), and North Atlantic Oscillation (NAO). The main emphasis is low flows in the South-Atlantic Gulf region of the United States. Several standard drought indices of low flow extremes during two different phases (warm/positive and cool/negative) of these oscillations are evaluated. Long-term streamflow data at 43 USGS sites in the region from the Hydro-Climatic Data Network that are least affected by anthropogenic influences are used for analysis. Results show that for ENSO, low flow indices were more likely to occur during La Niña phase; however, longer deficits were more likely during El Niño phase. Results also show that for PDO (AMO), all (most) low flow indices occur during the cool (warm) phase. / Includes bibliography. / Thesis (M.S.)--Florida Atlantic University, 2015. / FAU Electronic Theses and Dissertations Collection