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
Keywords
Related Articles
- EP ID EP195395
- DOI -
- Views 77
- Downloads 0
Underwater Noise Pollution at the Strait of Istanbul (Bosphorus)
Underwater noise pollution (UNP) has become a major concern in marine habitats, which is intense anthropogenic noise in the marine (aquatic) environment. It is caused by ship traffic, oceanographic experiments, and use o...
Determination of the Olive Trees with Object Based Classification of Pleiades Satellite Image
Identification of fruit trees and determination of their spatial distribution is an important task for several agricultural activities including fruit yield estimation, irrigation planning, disease management and support...
Assessment Of Stability and Energy Dissipation Performances of an Antifer Layer Protected Caisson
The present study intends to assess the stability and energy dissipation performances of a breakwater configuration (APC) protected by an antifer layer. For comparison, an ordinary caisson (OC), which was 5% wider and 10...
Geometric Analysis of Digital Aerial Images
The data produced by photogrammetric methods have become used more effectively and efficiently to take place of digital aerial cameras to aerial film cameras. Digital aerial cameras have distinct properties according to...
New Observations of Alien Foraminifera on the Turkish Coasts of the Aegean Sea (2008-2011)
Invasion of the Mediterranean Sea by alien species is an ongoing process. Each year new alien species are being recorded in the Levantine basin. To date, 34 alien foraminifer species are known to inhabit Turkish coastlin...