KUPLICH, T. M. Applications of sar data to estimate forest biophysical variables in Brazil. CERNE, v. 26, n. 1, p.88-97, 2020. HIGHLIGHTS Increasing number of articles presenting the use SAR remote sensing for forestry studies in Brazil. Most of articles presenting the use SAR remote sensing for forestry studies have Brazilian Amazonia as study site or Eucaliptus plantations elsewhere. L and P bands data are the most indicated for biomass estimates, although still subject to the backscatter

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... ration effect. Polarimetric and interferometric studies are becoming a reality with adequate free SAR data and processing systems available. ABSTRACT The use of SAR images has been highlighted in scientific research focused on forest data collection worldwide. Thus, the present work aimed at gathering studies turned to the application of SAR images to obtain biophysical variables of forests in Brazil. Based on studies published in recognized databases, a growing amount of publications over time was observed with more focus on researches made mainly in Amazonian biome, followed by planted forests with eucalyptus destined to wood production. Most works were made based on airborne radar data, followed by ALOS/PALSAR and JERS-1 orbital data. It is remarkable the scientific knowledge produced using radar data from Brazilian forests, demonstrating that this technology is an other tool for studies and applications in Forestry Sciences that can assist in the country's forestry management. Nevertheless, the need of studies on the several forest typologies across Brazil was evidenced, along with the lack of research related to radar use to estimate biophysical variables in caatinga and Atlantic Forest biomes. v.26 n.1 2020 89 CERNE JESUS and KUPLICH APPLICATIONS OF SAR DATA TO ESTIMATE FOREST BIOPHYSICAL VARIABLES IN BRAZIL