Section 3. The SPARROW Surface Water-Quality Model—Theory, application and user documentation

10.3133/tm6b3 ◽  
2006 ◽  
Author(s):  
Gregory Schwarz ◽  
Anne B. Hoos ◽  
R.B. Alexander ◽  
R.A. Smith
Keyword(s):  
Water Quality ◽  
Surface Water ◽  
Model Theory ◽  
Surface Water Quality ◽  
Water Quality Model ◽  
Quality Model ◽  
Theory Application

scholarly journals Assessment of Water Quality Profile Using Numerical Modeling Approach in Major Climate Classes of Asia

2018 ◽  
Vol 15 (10) ◽  
pp. 2258 ◽  
Author(s):  
Muhammad Mazhar Iqbal ◽  
Muhammad Shoaib ◽  
Hafiz Umar Farid ◽  
Jung Lyul Lee
Keyword(s):  
Water Quality ◽  
Water Environment ◽  
Oxygen Demand ◽  
Surface Water Quality ◽  
Water Quality Model ◽  
Oxygen Solubility ◽  
Quality Model ◽  
Spatial Profile ◽  
Climatic Regions ◽  
Model Predictions

A river water quality spatial profile has a diverse pattern of variation over different climatic regions. To comprehend this phenomenon, our study evaluated the spatial scale variation of the Water Quality Index (WQI). The study was carried out over four main climatic classes in Asia based on the Koppen-Geiger climate classification system: tropical, temperate, cold, and arid. The one-dimensional surface water quality model, QUAL2Kw was selected and compared for water quality simulations. Calibration and validation were separately performed for the model predictions over different climate classes. The accuracy of the water quality model was assessed using different statistical analyses. The spatial profile of WQI was calculated using model predictions based on dissolved oxygen (DO), biological oxygen demand (BOD), nitrate (NO3), and pH. The results showed that there is a smaller longitudinal variation of WQI in the cold climatic regions than other regions, which does not change the status of WQI. Streams from arid, temperate, and tropical climatic regions show a decreasing trend of DO with respect to the longitudinal profiles of main river flows. Since this study found that each climate zone has the different impact on DO dynamics such as reaeration rate, reoxygenation, and oxygen solubility. The outcomes obtained in this study are expected to provide the impetus for developing a strategy for the viable improvement of the water environment.

scholarly journals Application of fuzzy logic in river water quality modelling for analysis of industrialization and climate change impact on Sabarmati river

2021 ◽  
Author(s):  
Anant Patel ◽  
Karishma Chitnis
Keyword(s):  
Climate Change ◽  
Water Quality ◽  
Human Life ◽  
Surface Water Quality ◽  
Water Quality Model ◽  
Quality Data ◽  
Quality Model ◽  
Water Quality Data ◽  
Sabarmati River

Abstract Rivers are critical to human life because they are strategically significant in the world, providing primary water supplies for various purposes. Rivers are the prime importance of any country as most of the cities are settled near the river. Due to developmental activities and increase in population, it will results into huge waste generation. Surface water quality is affected because of increasing urbanization and industrialization. The aim of this research is to examine the effect of climate change and industrialization on the water quality of the Sabarmati river using a mathematical model. For this study four important town along the lower Sabarmati River have been considered and water quality data was considered from 2005 to 2015. In this study different water quality parameters were considered to derive water quality model. Results shows the water quality in downstream after Ahmedabad city is worst compare to the other location where the Maximum WQI is 0.71 at Rasikapur and average WQI is 0.50 for the same location for last 15 year. It has been observed that effect of monsoon and also by comparing time scale water quality model role of regulations for industrialization also plays important role in quality of Sabarmati river.

scholarly journals THE ASSESSMENT OF TECK'S CASTLE PROJECT BASED ON FIVE VALUED ECOSYSTEM COMPONENTS

InterConf ◽  
2021 ◽  
pp. 413-421
Author(s):  
Jingyao Su ◽  
Simon Courtenay
Keyword(s):  
Water Quality ◽  
Land Use ◽  
Surface Water ◽  
Fish Habitat ◽  
Surface Water Quality ◽  
Protective Equipment ◽  
Quality Model ◽  
Treatment Facilities ◽  
The Impact

Teck's Castle Project is the largest coal mine project to be mined in Canada. This article is an environmental assessment of Teck's Castle Project based on five valued ecosystem components (VECs) including: Surface Water Quality, Fish and Fish habitat, Vegetation, Local Employment, and Land Use. I proposed to use a surface water quality model to detect the degree of pollution of the water quality of the surrounding rivers and use an economic multiplier to measure the impact on local economic employment. Through research, I found that the water treatment facilities used by Teck Coal Limited can effectively alleviate the impact of the project on the water quality of the surrounding rivers, and I recommended that Teck Coal Limited wear protective equipment to protect their health when working.

scholarly journals A wetland hydrology and water quality model incorporating surface water/groundwater interactions

2007 ◽  
Vol 43 (4) ◽  
Author(s):  
Cevza Melek Kazezyılmaz-Alhan ◽  
Miguel A. Medina ◽  
Curtis J. Richardson
Keyword(s):  
Water Quality ◽  
Surface Water ◽  
Wetland Hydrology ◽  
Water Quality Model ◽  
Quality Model
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