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Creator:: Callaway, Richard J. and Specht, David T.
Abstract:: This report discusses data collected in the Yaquina Estuary from July 1976 through December 1977 at 6-8 week intervals. Also summarized are recording salinometer, runoff and precipitation data from September 1967 through July 1968. Station names and locations for the 76-77 field data are shown in Figure 1. Figure 2...
Resource Type:: Technical Report
Full Text:: model of the temperature and salinity structures of the Y a quina Bay, Oregon." Reference is made to

Creator:: Callaway, R. J., Specht, David T., and National Health and Environmental Effects Research Laboratory (U.S.). Western Ecology Division. Coastal Ecology Branch
Abstract:: "After a brief description of the setting of the Yaquina Estuary, estuarine dynamics and classification, and estuarine chemistry are presented. Then, temperature-salinity relations are reviewed using the Rattray-Officer model in simulating variable distributions reported by Callaway and Specht (1982) and Callaway (1991). Finally, the numerical models DynHyd and WASP are...
Resource Type:: Technical Report
Full Text:: for this project the "Contractor shall construct a two-dimensional mathematical model of the

Creator:: Wells, Scott A., Berger, Christopher, Knutson, Mike, and Oregon State University. Water Resources Research Institute
Abstract:: The goal of this phase of the study was to develop a model of the Tualatin River incorporating Scoggins Creek and Hagg Lake. This tool will be used in conjunction with a hydrologic model, the EPA HSPF model (Johnson, Imhoff, and Kittle, 1984), to analyze management strategies to improve water...
Resource Type:: Technical Report
Full Text:: and Forcing Data Oregon Water Resources Research Institute Oregon State University September 1992

Creator:: Berger, Christopher J. (Christopher John)
Abstract:: Water quality problems related to excessive algal growth, high nutrient loading, and low flows have been occurring along Oregon's Tualatin River. The Tualatin River is 86 miles long and has a drainage basin of 711 square miles. The drainage basin incorporates forest, agricultural, and urban areas. Located in the Portland...
Resource Type:: Technical Report

Creator:: Vedanayagam, Samuel, Nelson, Peter O., and Oregon State University. Water Resources Research Institute
Abstract:: The purpose of this study was to develop a mass-balance model for total suspended solids in the Tualatin River in order to better understand the clarity-turbidity problem in the river. Major sources and sinks of suspended solids in the river were identified, and seasonal effects were explored. The study also...
Resource Type:: Technical Report
Full Text:: 1995 A Publication of the : ♦ Oregon 4.'E Water Resources 'Nllr' Research %r Institute TUALATIN

Creator:: Tang, Fei
Abstract:: The Tualatin River Basin is located in the Washington County, Oregon. The river was detected having high chlorophyll a concentration and low dissolved oxygen concentration during summer time, which violated DEQ water quality standards. A mathematical model (HSPF) was used to simulate physical, chemical and biological processes in the basin...
Resource Type:: Technical Report
Full Text:: Oregon Department of Environmental Quality ENVIRONMENTAL AND WATER RESOURCES ENGINEERING DEPARTMENT OF

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