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Mapping and classification of hydrological parameters from digital terrain data in the Musandam Peninsula, UAE and Oman

Elmahdy, Samy Ismail and Mohamed, Mohamed Mostafa and Marghany, Maged (2015) Mapping and classification of hydrological parameters from digital terrain data in the Musandam Peninsula, UAE and Oman. Geocarto International, 30 (3). pp. 330-345. ISSN 1010-6049

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Official URL: http://dx.doi.org/10.1080/10106049.2014.965755

Abstract

Groundwater exploration and modelling requires hydrological parameters and a large volume of hydrologic database. This study integrates remote sensing and geographic information system (GIS) to map and classify hydrological parameters indicates areas of groundwater recharge and discharge. Bivariate quadratic surfaces with moving window size of 5 × 5 were fitted to the digital elevation model and drainage basins, drainage network, topographic wetness index (TWI) and hydroforms were derived. The eight-direction algorithm (D8) that determines in which neighbouring pixel any water in a central pixel will flow naturally was used to delineate drainage basin and drainage network in the study area. The TWI was used to quantify the effect of local topography on hydrological processes and for modelling soil moisture. The results indicate the presence of intensive of stream network (1336 km2), wettest zones and accumulation zones (63.99 km2) within Wadi Bih, the UAE and Wadi Khasb, Oman, suggesting regional recharge.

Item Type:Article
Uncontrolled Keywords:DEM, drainage network, GIS, hydroforms, Oman, remote sensing, UAE
Subjects:A General Works
ID Code:58498
Deposited By: Haliza Zainal
Deposited On:04 Dec 2016 12:07
Last Modified:22 Mar 2017 15:54

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