Abstract
The present research attempts to study detail morphometric analysis of Harrir and Shaqlawa watersheds in the northeastern part of Erbil city, north of Iraq. The areas of the watersheds are 350 Km² and 223 Km² for Harrir and Shaqlawa, respectively. To achieve the aims of this study, the ALOS PALSAR Digital Elevation Model data, and Geo-information (Remote sensing and GIS) techniques were used for determining and analyzing morphometric parameters in terms linear, aerial and relief aspects. Several tools in ArcGIS 10.4 software were utilized for preparing and producing maps, analyzing and assessing various characteristics of the parameters. The main results show that there is a strong inverse relationship between stream order, number and length of the stream in the watersheds of the study area by R² values (R² = 0.78 and 0.81 of Harrir watershed and R² = 0.8 and 0.79 for Shaqlawa watershed, respectively). The watersheds are elongated in shape with dendritic, sub dendritic to parallel drainage patterns. Moreover, detail morphometric analysis shows that the watersheds have a low runoff, low permeable material, and moderate slope. The structural geology and climatic parameters of the study area have influenced the landform development and stream behavior in the watersheds. Hence, the present study is useful and essential for watershed management and planning rainfall harvesting.
Highlights
Morphometric analysis is the most crucial technique used in studying the mathematical relations between drainage characteristics and it is utilized to map and compare drainageIraqi Geological Journal53 (2A), 2020: 88-104 networks and to realize the factors that influence on forming various systems of drainage patterns (Ali and Khan, 2013; Sakthivel et al, 2019)
Advanced Land Observing Satellite Digital Elevation Model (DEM) (ALOS PALSAR DEM) with 12.5 m resolution was used for this study, which was downloaded from the Alaska Satellite Facility, Topographical map at the scale of 1:25,000, geological map at the scale of 1:250,000, and satellite imagery for drainage pattern extraction and morphometric analysis
Remote sensing integrated to geographic information system (GIS) methods has been effectively utilized for analyzing the morphometry of two watersheds in the study area
Summary
Morphometric analysis is the most crucial technique used in studying the mathematical relations between drainage characteristics and it is utilized to map and compare drainageIraqi Geological Journal53 (2A), 2020: 88-104 networks and to realize the factors that influence on forming various systems of drainage patterns (Ali and Khan, 2013; Sakthivel et al, 2019). Morphometric analysis is the most crucial technique used in studying the mathematical relations between drainage characteristics and it is utilized to map and compare drainage. Al-Qayim and Ahmed (2015) have studied geomorphological of Dewana drainage watershed by using Geoformation techniques with regards to Digital Elevation Model (DEM), Satellite images, geological, topographic, and structural maps. Al-Saedi and Al-Obaidi (2018) have used GIS techniques integrated with remote sensing data (30 m resolution DEM) for the morphometric investigation of the Euphrates River Basin in Iraq. The main goals of this study are to calculate the morphometric parameters of the watersheds, comprehend the geological, hydrological and geomorphological characteristics of the watersheds, comparing between the watershed’s drainage pattern, stream behavior, and morphometric location of the drainage within the network helping for watershed management. Observing the role of remote sensing and GIS techniques in mapping and extracting the drainage network of the watersheds
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
