Evaluating urban land cover change in the Hurghada area, Egypt, by using GIS and remote sensing

Autor: Adamantios Kilias, Samir Kamh, Mahmoud Ashmawy, Basile Christaras
Rok vydání: 2011
Předmět:
Zdroj: International Journal of Remote Sensing. 33:41-68
ISSN: 1366-5901
0143-1161
DOI: 10.1080/01431161.2010.550331
Popis: The rapid urban development in the Hurghada area since the 1980s has dramatically enhanced the potential impact of human activities. To inventory and monitor this urban development effectively, remote sensing provides a viable source of data from which updated land cover information can be extracted efficiently and cheaply. In this study, data from three satellite datasets, Landsat Thematic Mapper (Landsat 5 TM), Landsat Enhanced Thematic Mapper Plus (Landsat 7 ETM+) and Terra/Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER), acquired during 1987, 2000 and 2005, respectively, were used to detect and evaluate Hurghada's urban expansion. Five change detection techniques were tested to detect areas of change. The techniques considered were image differencing, image ratioing, image overlay, multidate principal component analysis (PCA) and post-classification comparison. The post-classification comparison was found to be the most accurate procedure and produced three land use/land cover (...
Databáze: OpenAIRE