Regenerated ALOS-2/PALSAR-2 global mosaics 2016 and 2014/2015 for forest observations

ALOS-2/PALSAR-2 25-m spaced global mosaic has been produced as the L-band SAR forest monitoring dataset selected from the best acquisitions over the global land and year 2014 and 2015, as the resume of the dataset after pausing the ALOS/PALSAR on 2011 April 22, in the end of 2015. Detailed evaluation results showed some image degradations compared to ALOS/PALSAR: visible stripes across the neighboring strips. The possible causes are 1) less overlapping area between two neighboring strips and needs careful area selection for the radiometric balancing, and 2) antenna elevation pattern needed some more calibration. These two points were well recovered as the recalibration processing in 2016. We are creating the new version of the mosaic as of now. In this paper, we will describe the details of recalibrated and regenerated PALSAR-2 mosaic products for 2014/2015 and 2016 using the improved radiometric calibration algorithm.