Multi-temporal Analysis in the Niger Inland Delta Using Ers 1/2 and Asar Data
نویسنده
چکیده
Due to annual flooding the Niger Inland Delta plays an important role in the Sahel. The flooding influences deciding the land covers inside and in the immediate vicinity of the delta. Using remote sensing technology is an effective way to observe and verify changes in landscape. With its weather and daylight independence Synthetic Aperture Radar (SAR) data emphasize as particularly suitable for large-scaled monitoring. The system parameters of the ERS AMI sensor are quite similar to the available images from the ASAR sensor placed on the environmental satellite ENVISAT. Via four ERS and two ASAR images three change detection methods were performed to analyze which regions are affected by flooding. These areas are the foundation of living (fishery, live stock) for the people in the Inland Delta.
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