Automatic Calibration of Water Quality and Hydrodynamic Model (CE-QUAL-W2)
نام عام مواد
[Thesis]
نام نخستين پديدآور
Nasim Shojaei
نام ساير پديدآوران
Wells, Scott
وضعیت نشر و پخش و غیره
نام ناشر، پخش کننده و غيره
Portland State University
تاریخ نشرو بخش و غیره
2014
مشخصات ظاهری
نام خاص و کميت اثر
107
يادداشت کلی
متن يادداشت
Committee members: Berger, Chris; Talke, Stefan; Wells, Scott
یادداشتهای مربوط به نشر، بخش و غیره
متن يادداشت
Place of publication: United States, Ann Arbor; ISBN=978-1-321-18006-0
یادداشتهای مربوط به پایان نامه ها
جزئيات پايان نامه و نوع درجه آن
M.S.
نظم درجات
Civil and Environmental Engineering
کسي که مدرک را اعطا کرده
Portland State University
امتياز متن
2014
یادداشتهای مربوط به خلاصه یا چکیده
متن يادداشت
One of the most important purposes of surface water resource management is to develop predictive models to assist in identifying and evaluating operational and structural measures for improving water quality. To better understand the effects of external and internal nutrient and organic loading and the effects of reservoir operation, a model is often developed, calibrated, and used for sensitivity and management simulations. The importance of modeling and simulation in the scientific community has drawn interest towards methods for automated calibration. This study addresses using an automatic technique to calibrate the water quality model CEQUAL-W2 (Cole and Wells, 2013). CE-QUAL-W2 is a two-dimensional (2D) longitudinal/vertical hydrodynamic and water quality model for surface water bodies, modeling eutrophication processes such as temperature-nutrient-algae-dissolved oxygen-organic matter and sediment relationships. The numerical method used for calibration in this study is the particle swarm optimization method developed by Kennedy and Eberhart (1995) and inspired by the paradigm of birds flocking. The objective of this calibration procedure is to choose model parameters and coefficients affecting temperature, chlorophyll a, dissolved oxygen, and nutrients (such as NH4, NO3, and PO4). A case study is presented for the Karkheh Reservoir in Iran with a capacity of more than 5 billion cubic meters that is the largest dam in Iran with both agricultural and drinking water usages. This algorithm is shown to perform very well for determining model parameters for the reservoir water quality and hydrodynamic model. Implications of the use of this procedure for other water quality models are also shown.
موضوع (اسم عام یاعبارت اسمی عام)
موضوع مستند نشده
Civil engineering; Water Resource Management; Environmental engineering