Mapping and monitoring of Large-Sfax wetlands (center-east of Tunisia) using radiometric indexes and GIS tools
No Thumbnail Available
Date
2021-12-02
Journal Title
Journal ISSN
Volume Title
Publisher
جامعة الوادي - university of el oued
Abstract
Wetlands are characterized by temporary alterations in their structure and composition, and by multifunctionality. Therefore, identifying the boundaries of these zones is essential for appropriate characterization. In this context, this applied research work focuses on the wetlands of Large Sfax in the eastern center of Tunisia. The adopted methodology is based on a combined approach based on multivariate analysis and multi-dates analysis for the identification and the spatial delimitation of wetlands in the study area. The radiometric indexes of humidity NDWI, vegetation NDVI and brightness IB were calculated for the years 2003 and 2015 by using satellite imagery coming from Landsat ETM+7 and Landsat OLI 8. The classification maps of the calculated indexes enabled the identification and spectral delimitation of the wetlands of the study area. The multi-dates analysis was based on the visual interpretation of the panchromatic aerial photographs and the Google Earth snippets for the update of the results. This allowed the spatial delineation and the monitoring of marine, inland, and artificial wetlands in the study area. The importance of using the combined approach is that it allows a better characterization of wetlands
Description
Article
Keywords
Wetland; Spatial delimitation; Monitoring; Mapping; Radiometric indexes.
Citation
Chaabane, Balkis. Bousemma, Safa Bel Fekih . Allouche, Faiza Khebour. Mapping and monitoring of Large-Sfax wetlands (center-east of Tunisia) using radiometric indexes and GIS tools. Algerian Journal of Engineering and Technology. Vo5. No 01.02/12/2021.faculty of technology. university of el oued. [visited in ../../….]. available from