Arctic Boreal Annual Burned Area, Circumpolar Boreal Forest and Tundra, V2, 2002-2022

This dataset provides annual cumulative end-of-season burned area in circumpolar boreal forests and tundra for the years 2002-2022. The data were generated using the Arctic Boreal Burned Area (ABBA) version 2 algorithm with MODIS collection 6 products. The algorithm is based on Normalized Burned Ratio differencing (dNBR) and is designed specifically to capture late season fires. The annual MODIS Vegetation Continuous Fields (VCF) 250-m Collection 5.1 (MOD44B) product allowed for additional vegetation-dependent dNBR thresholds within the algorithm's processing steps. The spatial domain is circumpolar regions above 50 degrees north latitude. The data are provided in cloud-optimized GeoTIFF format with 463-m resolution.

本数据集提供了2002年至2022年间环北极地区针叶林和苔原地带年度累计火灾烧毁面积的年度累积数据。数据生成采用了北极针叶林火灾面积（ABBA）版本2算法，并结合了MODIS系列6产品。该算法基于归一化燃烧比率的差分（dNBR）原理，旨在专门捕捉晚季火灾。利用年度MODIS植被连续场（VCF）250米分辨率系列5.1（MOD44B）产品，算法处理步骤中可增加植被依赖的dNBR阈值。空间域涵盖北纬50度以上的环北极地区。数据以云优化GeoTIFF格式提供，分辨率为463米。