Journal of Earth Sciences and Geotechnical Engineering
Geo-Environmental Assessment of the Suez Canal Area, using Remote sensing and GIS Techniques
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Abstract
The Impacts of geologic, topographic and hydrologic characters on the thermal environment was assessed in the Ismailia-Bitter Lakes area. Digital Elevation Model extracted from the SRTM data shows that the waterlogged areas are distributed at low topographic localities.The drainage pattern extracted from the ETM+ image data and SRTM (DEM) using ArcGIS techniques show that all tributaries are accumulated toward the waterlogging localities.Image classification identified five land use categories at the concerned site, including surface water, sand cover, limestone, salt crust and Nile deposits & cultivated areas.Surface water were outlined and measured during 1987-2012; its surface areas increase from 56 km2 in year 1987 to 150 km2 in year 2012 with a rate of 3.8 km2/year. Thermal bands were processed to obtain radiant surface temperatures to investigate spatial and temporal Urban Heat Island effects associated with increasing waterlogged areas. Land Surface Temperature (LST) decreases from very high in year 1987 to moderate and low in year 2012.This study provides useful information for understanding the relationship between the expansion of surface water and land surface temperature.
