Drawing geometric characteristics of subterranean structures and removing evaporation with tilt shift (Case Study: Sansan village, Kashan)

Document Type : Research Article

Authors

1 Assistant Professor, Faculty of New Sciences and Technologies, University of Tehran

2 MSc. Student in Ecohydrology, Faculty of New Sciences and Technologies, University of Tehran

3 Associate Professor, Faculty of New Sciences and Technologies, University of Tehran

Abstract

According to some researches, Iran is facing its greatest and worst drought in over 30 years. Kashan plain basin is one of the critical areas that has water loss and progressive destruction of agriculture due to the lack of management on the use of groundwater resources. One of the most important inventions of Iranians that has long been an effective factor in management of water resources from the past, has been Qanat. This research aims to improve water resources management through studying Sansan's qanat around Kashan. So, due to the structural cognition of qanat, the depth of wells was determined according to the laws of free fall. The results show the inefficiency of the method, and the reasons are explained in detail. The depth and hydraulic slope were determined by rope and the length measurement tool. Therefore, qanat's schema was drawn in three particles: elementary, middle and end, which was the first of its kind. The results of tilt-shift on the rise in water flow and losses from evaporation were studied showing  the possibility of increasing freshwater by five times.

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References

 

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Iranian journal of Ecohydrology
Volume 4, Issue 2
June 2017
Pages 437-446

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History

  • Receive Date: 18 January 2017
  • Revise Date: 14 March 2017
  • Accept Date: 16 April 2017
  • First Publish Date: 22 June 2017
  • Publish Date: 22 June 2017

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