Geoelectrical prospecting for detection qanat in Kerman Province, southern Iran
عنوان دوره: نوزدهمین کنفرانس ژئوفیزیک ایران
کد مقاله : 1724-NIGS
نویسندگان
1موسسه ژئوفیزیک دانشگاه تهران
2ژئوفیزیک، موسسه ژئوفیزیک دانشگاه تهران
3شرکت زمین فیزیک
4دانشگاه پیام نور، تهران
چکیده
In most of Iran areas, especially dry areas, there are no lakes or rivers on the surface. So, in the past, the water of cities and towns had been supplied by underground water channel systems that are called qanat. Most of these old channels were abounded and collapsed. Following collapsing of the qanat walls, a very important matter is the detection of these man-made structures to prevent them from possible destruction to surrounding buildings and lifelines. This paper deals with a geophysical survey carried out in a critical urban area of Kerman, southern Iran. Kerman has a very complex shallow qanats. Here, we present the results of a near-surface survey carried out by the Electrical Resistivity Tomography (ERT) method. In this work, we show that inverse modeling of ERT data can give us information about the location of the ganat. In addition, 3-D presentation of the ER data is very useful in the 3-D visualization of the subsurface, and thus, can indicate the ganats more precisely.
کلیدواژه ها
Title
Geoelectrical prospecting for detection qanat in Kerman Province, southern Iran
Authors
Saeed Parnow, sadegh moghadam, Sajjad Ebrahim Nejad, Asghar Azadi
Abstract
In most of Iran areas, especially dry areas, there are no lakes or rivers on the surface. So, in the past, the water of cities and towns had been supplied by underground water channel systems that are called qanat. Most of these old channels were abounded and collapsed. Following collapsing of the qanat walls, a very important matter is the detection of these man-made structures to prevent them from possible destruction to surrounding buildings and lifelines. This paper deals with a geophysical survey carried out in a critical urban area of Kerman, southern Iran. Kerman has a very complex shallow qanats. Here, we present the results of a near-surface survey carried out by the Electrical Resistivity Tomography (ERT) method. In this work, we show that inverse modeling of ERT data can give us information about the location of the ganat. In addition, 3-D presentation of the ER data is very useful in the 3-D visualization of the subsurface, and thus, can indicate the ganats more precisely.
Keywords
Electrical Resistivity Tomography (ERT), qanat, Kerman