TITLE:
Evaluation of Selected Site Location for Subsurface Dam Construction within Isayi Watershed Using GIS and RS Garmiyan Area, Kurdistan Region
AUTHORS:
Salahaldin S. Ali, Foad A. Al-Umary, Sarkawt G. Salar, Nadhir Al-Ansari, Sven Knutsson
KEYWORDS:
Subsurface Dam, GIS, Water Harvest, Hydrogeology, Geomorphology
JOURNAL NAME:
Journal of Water Resource and Protection,
Vol.6 No.11,
August
13,
2014
ABSTRACT:
Garmiyan
area suffers from many water problems such as poor rainfall rate, water
shortage, aridity and absence of groundwater in many places. Hence the
subsurface dam is the best solution due to many advantages such as low cost of
construction, least maintenance, low evaporation, no contamination, utilization
of the land over the dam and better storage. The objective of this study is to
evaluate the suitability of the selected site location for subsurface dam
construction, to serve as strategic water supply storage, to solute the aridity
and water shortage in this area of arid to semi arid climate in Isayi watershed
within the stream deposits. Geographic information systems (GIS) and remote
sensing through satellite images and Digital Elevation Model (DEM)
interpretation and analysis have facilitated the investigation with more
accuracy. ArcGIS helped in construction of thematic maps of the studied area.
The geologic, structural, geomorphologic, hydrologic and hydrogeologic
characteristics with GPR survey show the suitability of the selected site
location for construction of subsurface dam. According to the standard water
quality for domestic, irrigation and livestock the water quality of all water
samples are within the recommended range and the best time to be chosen, for
construction of the subsurface dam, is during the autumn season from September
to November.