Most studies indicate that L-band synthetic aperture radar (SAR) has a great capacity to estimate biomass due to its ability to penetrate deeply through canopy layers. Many applications using L-band space-borne data have showcased their own significant contribution in biomass estimation but some limitations still exist. New data have been released recently that are designed to overcome limitations and drawbacks of previous sensor generations. The Japan Aerospace Exploration Agency (JAXA) launched the new sensor ALOS-2 to improve wide and high-resolution observation technologies in order to further meet social and environmental objectives. In the list of priority tasks addressed by JAXA there are experiments utilizing these new data for vegetation biomass distribution measurement. This study, therefore, focused on investigating the capabilities of these new microwave data in above ground biomass (AGB) estimation. The data mode used in this study was a full polarimetric ALOS-2/PALSAR-2 (L-band) scene. The experiment was conducted on a portion of a tropical forest in a Central Highland province in Vietnam.
L. V. Anh, D. J. Paull, and A. L. Griffin, "Investigating the capabilities of new microwave ALOS-2/PALSAR-2 data for biomass estimation," Proc. SPIE 10005, Earth Resources and Environmental Remote Sensing/GIS Applications VII, 100050T (Presented at SPIE Remote Sensing: September 28, 2016; Published: 18 October 2016); https://doi.org/10.1117/12.2240911.
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