ISSN: 1813-0410

Keywords : GIS

Multi-Criteria Decision Analysis for Primary School Site Selection in Al-Mahaweel district Using GIS Technique

Khalid Ahmed Ali

journal of kerbala university, Volume 14, Issue 1, Pages 342-350

Site selection is the process of finding sites that meet the requirements set by the selection criteria. The long-term and success sustainability of planning school, finding the appropriate school locations is challenging and an important. This study aims to develop a primary school site selection model using Geographic Information Systems (GIS) integrated new approach. It was carried out by Geographic Information Systems and multi-criteria evaluation model (MCEM). Different criteria were used to suggest a number of potential primary school sites using a spatial analysis, which is the new school should be away from existing schools and the major roads, a new site should also be reliably flat land and on certain types of land use. The population factor of the age group less than 14 years was included as a factor to choose the suitable location. As a result, the final suitability map indicates that 18 % of the study area is suitable for a primary school site, 73% moderately suitable, and 9% of the study area under unsuitable.

Estimation the hydrogeological characteristics of Al-Dammam confined aquifer in the west and southwest of Karbala city, Iraq.

Rasul M. Khalaf; Waqed H. Hassan

journal of kerbala university, Volume 12, Issue 0, Pages 24-35

The main objective of the research is to identify the hydrogeological characteristics of the Dammam confined aquifer by selecting carefully nine wells of suitable properties for carrying out the pumping test within study area. The study area is located in Karbala Governorate between longitudes (43˚ 47ʹ 58ʺE - 43˚ 59ʹ 45ʺE), and latitudes (32˚ 26ʹ 54ʺN - 32˚ 33ʹ 16ʺN).The study area has a trapezoidal shape covering an area of about (134.6) km2, which contains many geological formations and represents part of Karbala-Najaf plateau. The producing hydrogeological unit in the area is the Dammam aquifer. Type of this aquifer is karst confined aquifer. In this study, a pumping test was performed on November, 2012, at a wells on Karbala desert area then applying AQTESOLV software version 4.5 for pumping test analysis to determine wells hydraulics for the nine deep wells that partially penetrated the Dammam aquifer and distributed all over the studied area. The results indicate that the transmissivity value for the Dammam confined aquifer ranges from (26.19-4134.6) m2/day and the hydraulic conductivity value ranges from (0.44-45.94) m/day.

BOD and DO modeling for Tigris River at Baghdad city portion using QUAL2K model

Alhassan H. Ismail; Ghassan A. Abed

journal of kerbala university, Volume 9, Issue 1, Pages 257-273

This study was conducted within Baghdad portion of Tigris River, which is significant due to the presence of various drains joining the river. Water samples have been collected from Tigris River along different points between Alfahama to Al-Zafarania and were analyzed for various water quality parameters during low flow season (November). The study involves application of QUAL2K model to simulate and predict the dissolved oxygen (DO) and biochemical oxygen demand (BOD5) profiles of Tigris River in a stretch of 49.97 kilometer. Remote sensing &GIS technique (ERDAS 9.2 & Global Mapper 11) used in this study as supported software to provide some QUAL2K input data related to the river geometric parameter. The simulation results were verified and showed that the predicted values were in agreement with the measured values. Model output showed that DO in the entire river was within limit of not less than 4 mg/L. For CBOD, the entire river may be divided into three reaches; first one is extended from AlFahama (0 km) to Alkadhmiah (9 km) and have CBOD concentration of 2 mg/L and the second reach has CBOD range (2–4) mg/L in which begins from Alkadhmiah and extend to near Aldora refinery. The third reach extends from Aldora refinery to Al-Zafaraniah (49.97) in the south before river confluence with Diyala River which has CBOD concentrations of more than 4 mg/L. The most polluted zone in the river located downstream of Aldora refinery and extend to the last segment due to the industrial discharge of pollutants to the river. Two strategies were suggested to control the level of CBOD in the river. First strategy suggest that the CBOD of the discharged effluent from industries should not exceed at least 50 mg/L to keep the CBOD of the entire river within limits of not more than 4 mg/L. While the second strategy does not give significant results in which the level of CBOD increase even with reduction in the pollution load (point source).