Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018WR023417 |
Quantifying the Impact of Uncertainty within the Longitudinal Dispersion Coefficient on Concentration Dynamics and Regulatory Compliance in Rivers | |
Camacho Suarez, V. V.1; Schellart, A. N. A.1; Brevis, W.2,3; Shucksmith, J. D.1 | |
2019-05-01 | |
发表期刊 | WATER RESOURCES RESEARCH |
ISSN | 0043-1397 |
EISSN | 1944-7973 |
出版年 | 2019 |
卷号 | 55期号:5页码:4393-4409 |
文章类型 | Article |
语种 | 英语 |
国家 | England; Chile |
英文摘要 | The one-dimensional advection dispersion equation (1DADE) is commonly used in practice to simulate pollutant transport processes for assessment and improvement of water quality conditions in rivers. Various studies have shown that the longitudinal dispersion coefficient used within the 1DADE is influenced by a range of hydraulic and geomorphological conditions. This study aims to quantify the impact and importance of the parameter uncertainty associated with the longitudinal dispersion coefficient on modeled pollutant time-concentration profiles and its implications for meeting compliance with water quality regulations. Six regression equations for estimating longitudinal dispersion coefficients are evaluated, and commonly used evaluation criteria were assessed for their suitability. A statistical evaluation of the regression equations based on their original calibration data sets resulted in percent bias (PBIAS) values between -47.01% and 20.78%. For a case study, uncertainty associated with the longitudinal dispersion coefficient was propagated to time-concentration profiles using 1DADE and Monte Carlo simulations, and 75% confidence interval bands of the pollutant concentration versus time profiles were derived. For two studied equations, the measured peak concentration values were above the simulated 87.5th percentile, and for the other four equations it was close to the 87.5th percentile. Subsequent uncertainty propagation analysis of four diverse rivers show the potential considerable impact on concentration-duration-frequency-based water quality studies, with 1DADE modeling producing predictions of quality standard compliance which varied over hundreds of kilometers. |
英文关键词 | longitudinal dispersion river water quality models advection dispersion equation parameter uncertainty dispersion coefficient ADE analytical solution |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000474848500043 |
WOS关键词 | WATER-QUALITY MODEL ; SOLUTE TRANSPORT ; PREDICTING DISPERSION ; SENSITIVITY-ANALYSIS ; TRANSIENT STORAGE ; QUANTIFICATION ; PROPAGATION ; STREAMS ; CALIBRATION ; ROUGHNESS |
WOS类目 | Environmental Sciences ; Limnology ; Water Resources |
WOS研究方向 | Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/183151 |
专题 | 资源环境科学 |
作者单位 | 1.Univ Sheffield, Dept Civil & Struct Engn, Sheffield, S Yorkshire, England; 2.Pontificia Univ Catolica Chile, Dept Hydraul & Environm Engn, Santiago, Chile; 3.Pontificia Univ Catolica Chile, Dept Min Engn, Santiago, Chile |
推荐引用方式 GB/T 7714 | Camacho Suarez, V. V.,Schellart, A. N. A.,Brevis, W.,et al. Quantifying the Impact of Uncertainty within the Longitudinal Dispersion Coefficient on Concentration Dynamics and Regulatory Compliance in Rivers[J]. WATER RESOURCES RESEARCH,2019,55(5):4393-4409. |
APA | Camacho Suarez, V. V.,Schellart, A. N. A.,Brevis, W.,&Shucksmith, J. D..(2019).Quantifying the Impact of Uncertainty within the Longitudinal Dispersion Coefficient on Concentration Dynamics and Regulatory Compliance in Rivers.WATER RESOURCES RESEARCH,55(5),4393-4409. |
MLA | Camacho Suarez, V. V.,et al."Quantifying the Impact of Uncertainty within the Longitudinal Dispersion Coefficient on Concentration Dynamics and Regulatory Compliance in Rivers".WATER RESOURCES RESEARCH 55.5(2019):4393-4409. |
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