scholarly journals ПРОГНОЗУВАННЯ ЯКОСТІ ВОДИ В РІЧКАХ ДУНАЙ ТА СІВЕРСЬКИЙ ДОНЕЦЬ ЗА ДОПОМОГОЮ ГЕОІНФОРМАЦІЙНИХ ТЕХНОЛОГІЙ

World Science ◽  
2019 ◽  
Vol 1 (11(51)) ◽  
pp. 45-49
Author(s):  
Васенко О. Г. ◽  
Брук В. В. ◽  
Карлюк А. А. ◽  
Свиридов Ю. В.
Keyword(s):  
Water Quality ◽  
Information System ◽  
Geographic Information System ◽  
Quality Indicators ◽  
Ammonia Nitrogen ◽  
Ammonium Nitrogen ◽  
Geographic Information ◽  
Danube River ◽  
Water Quality Indicators

For forecasting of the change of water quality in water object the geographic information system (GIS) of the ecological monitoring had been designed. The geographic information system was applied to analyze the water quality of the Danube and Seversky Donets. With the help of GIS, the main trends of changes in water quality indicators of the Danube Delta were identified. In the Danube River, for the most part, there was a tendency for improvement of water quality during the study period, the tendency for deterioration of water quality was determined only by the indicator of manganese. The tendency for deterioration of water quality was observed in the Siverskyi Donets River by the following indicators: suspended matter and ammonia nitrogen. The main trends of changes in water quality indicators have also been identified in the lakes (Chaika, Lychevoe), which influence the formation of water quality of the Siverskyi Donets River. In Lake Chaika there is a tendency to deteriorate in quality: weighed substances; nitrogen nitrate, chlorides and iron. In this case, the values of some indicators in Lake Chaika (BOD-5 and total iron), in Lake Lichovo (COD, BOD-5, nitrite nitrogen) and in the Siverskyi Donets River (overlying districts, ammonium nitrogen) will be several times higher fishery maximum permissible concentration.

scholarly journals Assessment of Water Quality Using Modified Water Quality Index and Geographical Information System in Madathukulam Taluk, Tiruppur District, Tamil Nadu, India

2021 ◽  
Vol 37 (5) ◽  
pp. 1210-1220
Author(s):  
R. Chitradevi ◽  
M. Jeyaraj ◽  
Vikas D. Ghadamode ◽  
K. Poonkodi ◽  
Rani Venkadasamy ◽  
...  
Keyword(s):  
Water Quality ◽  
Information System ◽  
Geographic Information System ◽  
Water Quality Index ◽  
Quality Index ◽  
Tamil Nadu ◽  
Geographic Information ◽  
Geographical Information ◽  
Quality Of Water

The present investigation is an extensive study of surface and ground water quality of Madathukulam taluk, Tiruppur District, Tamil Nadu, India, to estimate the quality of water using Modified Water Quality Index (MWQI) and Geographic Information System (GIS) technique. In this study 35 water samples from Open well, Bore well, River, Lake and Pond were analysed for the physicochemical parameters like pH, temperature, total phosphate, total nitrate, turbidity, total dissolved solids, dissolved oxygen, biological oxygen demand, faecal coliform, electrical conductivity, total hardness, chloride, fluoride, sodium and potassium. The resulting values were computed to investigate the quality of water using geographic information system and water quality index and compared with the standard drinking water guidelines proposed by the WHO (2017) and BIS (2012) for drinking and agricultural purpose. Inverse distance weighted (IDW) interpolation technique was used for preparing the spatial distribution maps for each physiochemical parameter. The analytical result signifies that 40% of the study areas are slightly acidic. GIS based water quality index shows that 63% of the area has recorded with good quality water, while the remaining 37% are of medium quality of water. The MWQI proved to be a useful method to classify the water similar to NSF-WQI in Madathukulam Taluk.

scholarly journals The choice of optimal sites for controlled landfill using the Analytical Hierarchy Process and the Geographic Information System: A case of Oum Azza in Morocco

2021 ◽  
Vol 234 ◽  
pp. 00066
Author(s):  
Ahmed Ait Errouhi ◽  
Jihane Gharib ◽  
Yassir Bouroumine ◽  
Anas Bahi
Keyword(s):  
Information System ◽  
Geographic Information System ◽  
Waste Management ◽  
Geographic Information ◽  
Waste Hierarchy ◽  
Institutional Economic ◽  
System A ◽  
Exponential Increase ◽  
Hierarchy Process

Depending on the technical, institutional, economic and social limits of developing countries, as well as the population density in cities, nowadays, the volume of urban waste has increased considerably, and the management of this waste contributes to climate change, and air pollution, it directly affects many ecosystems and many species. Waste management faces serious problems such as irregular collection, informal sweeping activities, uncontrolled dumping and proliferation of illegal dumping. The latter constitute a real and permanent threat to the quality of life, this exponential increase in the urban population and the resulting accelerated phenomenon of urbanization have highlighted the need to develop sustainable and efficient waste management systems. Stakeholders are therefore required to consider alternative and available means of disposal, in particular by minimizing the damage caused to the ecosystem and to the human population, among these means of disposal, controlled landfills, considered as the last option in the waste hierarchy. In this study, attempts were made to locate a new landfill in Oum Azza using the AHP multi-criteria decision-making method to assess the different criteria considered during the prospecting and combining them with the geographic information system to acquire the results in the form of maps displayed on the optimal sites to house a new controlled landfill and minimize its terrible impact on the environment.

scholarly journals Utilization of factor analysis in waterworks engineering

2004 ◽  
Vol 52 (2) ◽  
pp. 121-128
Author(s):  
Petra Nováková
Keyword(s):  
Water Quality ◽  
Factor Analysis ◽  
Quality Indicators ◽  
Water Reservoir ◽  
Statistical Processing ◽  
Point Of View ◽  
Water Quality Indicators ◽  
Quality Of Water ◽  
The Individual

The aim of the work was to elaborate and evaluate the water quality of water reservoir Vranov nad Dyjí. Fresh water was sampled in five different locations of the reservoir (three important tributaries, dam and water captation locality). Ten, the most essential water quality indicators were selected. From the point of view of water quality indicators complexity the most integrated samples were taken in the water captation locality (period 1984 – 2002). At other locations, there were missing dates from the eightieth, but their volume was sufficient for statistical processing.Correlation analyses for the individual locations and dimensions were done as so as determination coefficients for all localities during the time period of 1994 – 2002. The results demonstrate very good allocation of the water captation from the point of view of the water flow.Multiples and factor analysis was done for the period of 1984 – 2002 in the locality Jelení zátoka where the object of water captation is situated. The results of the analysis are nine factors, which influence the water quality of the reservoir. From the point of view of the importance three factors were interpreted.The analyses and results are part of my Ph.D. thesis. The results will be used for other evaluations of the water quality in the reservoir and tributaries, for activities in the catchment’s area and for proposal processing other zones of second level of protected areas.

Improving road network databases by integrating a geographic information system and digital imagery

2008 ◽  
Vol 35 (2) ◽  
pp. 170-178 ◽  
Author(s):  
M. Abdalla ◽  
Said M. Easa
Keyword(s):  
Information System ◽  
Geographic Information System ◽  
Road Network ◽  
Geographic Information ◽  
Integrated System ◽  
High Data ◽  
Road Lighting ◽  
Safety Performance Functions ◽  
Collection Cost

Road lighting information is an important record in road network databases. It has been frequently observed that such data are either missing or not updated due to the high data collection cost using traditional methods. This paper presents a new methodology for identifying and (or) resolving missing and conflicting road lighting data in road network databases. The methodology is based on: (i) integrating the single-line road network (SLRN) in a geographic information system format with a road network database and (ii) integrating the SLRN with a collision database. Missing and conflicting lighting data are resolved using a semi-automatic method for extracting streetlight pole information. The integrated system can also identify inconsistencies related to short segments and segments with mixed illumination characteristics. Inconsistencies in the traffic volume database were also examined and the effect of data inconsistency on safety performance functions was evaluated. The proposed methodology represents an inexpensive, efficient tool for improving the quality of road network databases and associated road safety analysis.

scholarly journals Water Quality Zoning Based on Water Quality Index and Wilcox Index Using Geographic Information System

2014 ◽  
Vol 6 (3) ◽  
Author(s):  
Ghodratola Khoramabadi Shams ◽  
Abdolrahim Yusefzadeh ◽  
Hatam Godini ◽  
Edris Hoseinzadeh ◽  
Mohammad Khoshgoftar
Keyword(s):  
Water Quality ◽  
Information System ◽  
Geographic Information System ◽  
Water Quality Index ◽  
Quality Index ◽  
Geographic Information
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