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Combining SAR and Optical Imagery for Mapping and Change Detection

Freely available Sentinel-1 and Landsat-8 imagery can be leveraged to map and monitor many different global features. In December 2014, a volcanic eruption in the Pacific Ocean resulted in the expansion of an existing landmass, located on top of the Hunga Ha'apai volcano, which is located 62km northwest of Tonga's capital Nuku'alofa.

Join us as we show you how to process the SAR and Optical images to automatically detect newly formed landmasses.


What You'll Learn:

  • Accessing Sentinel-1 imagery and working with it in Geomatica
  • Accessing Landsat-8 imagery and working with it in Geomatica
  • Combining SAR change detection with optical change detection to improve confidence of positive change
  • Creating a Python workflow that automatically searches all images for signs of land reclamation

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