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The Phased Array L-band Synthetic Aperture Radar (PALSAR) aboard ALOS-1 was a successor sensor to the synthetic aperture radar on board JERS-1 with more advanced functions such as higher spatial resolution capability, variable off-nadir angles and additional modes such as full-polarimetry mode and ScanSAR mode.

Data Description

Through the Online Dissemination server, ESA offers registered users access to the following data collections:

Product descriptions:


To find out more, visit PALSAR products information.


The goal of calibration and validation activities is to verify the accuracy and quality of data the instrument acquired.

Quality Control Reports

A small percentage of ALOS-1 PALSAR products processed by the current installed ESA IPF are affected by a known quality issue; IPF failures due to PRF changes.



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