A GIS-Based Study to Investigate Effect of Water Table Changes on DRASTIC Model: A Case Study of Kermanshah, Iran
Journal Title: International Journal of Environment and Geoinformatics - Year 2016, Vol 3, Issue 2
Abstract
Groundwater is considered as an important source of water supply in our world. Its contamination is of particular concern as it is a vital source of water for irrigation, drinking and industrial activities. To control and manage groundwater contamination DRASTIC model is a popular approach. This study applied an integrated DRASTIC model using Geographic Information Science (GIS) tool to evaluate groundwater vulnerability of Kermanshah plain, Iran considering water table fluctuation. High fluctuation of water table depth due to wet and dry season in arid and semi-arid areas is notable. The study area is affected by this problem, thus this research investigated the effect of minimum depth water during one year respect to average water depth which is common for this model. Results represent considerable differences for two types of produced maps; map using mean of water table for 5 year and map of minimum water table of one year. Vulnerability maps of mean data classified 40% of the study area as no risk of pollution while this is around 25% for vulnerability maps of minimum depth. In spite, minimum depth vulnerability maps classified around 12% of the study area as moderate risk which is 6% greater than mean depth vulnerability maps. In case of accuracy, results show more correlation between Nitrate data (NO3 −) and vulnerability maps of minimum water table.
Authors and Affiliations
Elham Goumehei, Yousef Geravandi, Wanglin Yan
Analysis of Different Interpolation Methods for Soil Moisture Mapping Using Field Measurements and Remotely Sensed Data
In this research, we comparatively analyzed different interpolation methods to create soil moisture maps by using field measurements and remotely sensed data. Impacts of number and distribution of field measurements on i...
New observations of alien foraminifera on the Turkish coasts of the Aegean Sea (2012-2015)
During the benthic foraminiferal surveys conducted on the Aegean coasts of Turkey between 2012-2015, new alien species have been observed. These were either recent introductions, such as Cornuspiroides striolatus (Brady)...
Deformation Analysis by Geomatic and Geotechnical Methods in Highway Tunnels
In the highway transportation network, the tunnel has an important place. Tunnels are used to provide safe, comfortable and economical transportation in areas where topography is not available. In addition to the facilit...
Building Zone Regulation Compliance Using LIDAR Data: Real-Life Tests in İstanbul
Airborne Laser scanning systems with light detection and ranging (LIDAR) technology is one of the fast and accurate 3D point data acquisition techniques. Generating accurate digital terrain and/or surface models (DTM/DSM...
Carbon Sequestration Analysis of dominant tree species using Geo-informatics Technology in Gujarat State (INDIA)
Comparative analysis of carbon store of three dominant tree species in planned green capital city of Gandhinagar and unplanned industrial town of Mahesana in Gujarat State, India was carried out using geo-informatics tec...