Pan-sharpening of sentinel-2 by ALOS PRISM 2.5m panchromatic orthorectified imagery using image fusion algorithms to increase spatial resolution from 10 meters to 2.5 meters/ pixel.
The final product can produce 10000 scale maps on different band composites, the example here applied on sentinel-2_L2A composite of 12/4/2 in RGB which very common in geological mapping.
ALOS PRISM is an optical instrument which observes the earth surface with a spatial resolution of 2.5 m in visible bands. Its data are used for creating high-precision digital elevation models (DEM).
The instrument has three optical systems for acquiring topographic data with altitude information. It acquires data in three directions―forward, nadir and backward―along the satellite track at the same time.
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PRISM data can be accessed from ESA earth online and download ALOS Africa products through the ESA LDS. The data is freely available to registered EO-SSO users.