Title of article :
A New GIS based Application ofSequential Technique to Prospect Karstic Groundwater using Remotely Sensed and Geoelectrical Methods in Karstified Tepal Area, Shahrood, Iran
Author/Authors :
Sharifi، Fereydoun نويسنده Faculty of Mining, Petroleum and Geophysics Engineering, Shahrood University, Shahrood, Iran Sharifi, Fereydoun , Arab-Amiri، Alireza نويسنده Faculty of Mining, Petroleum and Geophysics, Shahrood University, Shahrood, Iran Arab-Amiri, Alireza , Kamkar–Rouhani، Abolghasem نويسنده School of Mining, Petroleum and Geophysics, Shahrood University of Technology , , Yousefi، Mahyar نويسنده Faculty of Engineering, Malayer University, Malayer, Iran Yousefi, Mahyar , Tokhmechi، Behzad نويسنده School of Mining, Petroleum and Geophysics Engineering, Shahrood University of Technology, P.O. Box 316, Shahrood, I.R. Iran ,
Abstract :
In this research, recognition of karstic water-bearing zones using the management of exploration data
in Kal-Qorno valley, situated in the Tepal area of Shahrood, has been considered. For this purpose, the
sequential exploration method was conducted using geological evidences and applying remote sensing
and geoelectrical resistivity methods in two major phases including the regional and local scales. Thus,
geological structures and lithological units in regional scale have been investigated for groundwater
potential. In this regard, suitable potential maps have been provided in the geographical information
system (GIS) environment, using fuzzy data-driven and knowledge-driven methods. To obtain the
final karstic water potential model, the prepared maps were combined using fuzzy ‘AND’ operator. In
the local scale, geoelectrical surveys were conducted in the recognized high potential zones.
Consequently, the results of geological investigations, analysis of lineaments extracted from satellite
imagery and geoelectrical resistivity data modeling and interpretation were integrated to decide on the
position of high yield extraction wells. As a result, karstic water zones in the study area were
identified, and based on that, two suitable drilling locations to access and extract karstic groundwater
in the study area have been suggested.
