مراقبة زحف الرمال و التنبؤ بحركتها باستخدام تقنية الاستشعار عن بعد و نظم المعلومات الجغرافية، في محافظة بدر، بمنطقة المدينة المنورة

Abstract EN

Sand dune movements can be effectively monitored through the comparison of multitemporal satellite images.

However, not all remote sensing platforms are suitable to study sand dunes.

This study compares coarse (Landsat 7 and 8) and fine (Worldview 2) resolution platforms, specifically focusing on sand dunes.

The aim of this research is to monitor the Sand Dune Movements and direction Using Multitemporal Remote Sensing data, this can provides possibility of observing and predicting sand dunes movement before reaching the urban area.

The analyzing and processing was based on the PCI (Geomatica 9.1 and the ARCGIS 10.1)two band combinations were compared with the use of two supervised classifications.

The best combination was found to be red, green, blue and near-infrared band combination and the maximum likelihood classifier, In order to create a database of Sand Dune Movements, this help to control Sand Dune Movements, by reducing the impact of the effects Sand Dune Movements and determining thelocations of Sand Dune Movements which can be reach to, the results showed the Sand Dune Movements increasing about 150 square meters annually between 2012 to 2016 in the Badr region, the results showed that the study area In a manner M exposed to high risk of sand encroachment.