The Panchromatic Remote-sensing Instrument for Stereo Mapping (PRISM) was a panchromatic radiometer with 2.5 m spatial resolution at nadir. Its extracted data was designed to provide highly accurate digital surface model (DSM).
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You can directly download ALOS data from a number of online dissemination systems. All data is freely available to registered EO-SSO users.
Download ALOS Africa products through the ESA LDS Online Dissemination System:
ESA may make ALOS PRISM and AVNIR-2 data available at a later stage.
The goal of calibration and validation activities is to verify the accuracy and quality of data the instrument acquired.