Fire Intensity and Burn Severity Metrics for Circumpolar Boreal Forests, 2001-2013

This data set provides products characterizing immediate and longer-term ecosystem changes from fires in the circumpolar boreal forests of Northern Eurasia and North America. The data include fire intensity (fire radiative power; FRP), increase in spring albedo, decrease in tree cover, normalized burn ratio, normalized difference vegetation index, and land surface temperature, as well as three derived fire metrics: crown scorch, vegetation destruction, and fire-induced tree mortality. Longer-term changes are indicated by mean albedo determined 5-12 years after fires, mean percent decrease in tree cover 5-7 years after fires, and mean annual burned percentage. The data cover the period 2001-2013 and are provided at quarter, half, and one degree resolutions for boreal forests within the 40 to 80 degree North circumpolar region. The data were derived from a variety of sources including MODIS products, climate reanalysis data, and forest inventories. A data file with identified boreal forest area (pixels), as defined by climate and vegetation type, and a file with the defined North American and Eurasian boreal forest study regions are included.

本数据集提供了表征北极圈北亚和北美 boreal 森林火灾引起的即时及长期生态系统变化的各类产品。数据包括火灾强度（辐射功率；FRP）、春季反照率增加、树木覆盖率下降、归一化燃烧比率、归一化植被指数差异以及地表温度，以及三个派生火灾指标：树冠灼烧、植被破坏和火灾诱导树木死亡率。长期变化通过火灾后5至12年确定的平均反照率、火灾后5至7年的平均树木覆盖率百分比下降以及平均年度燃烧百分比来指示。数据覆盖了2001至2013年期间，并针对北极圈40至80度范围内的一度、半度和季度分辨率提供了 boreal 森林的数据。数据来源于多种来源，包括 MODIS 产品、气候再分析数据和森林调查。数据文件包括由气候和植被类型定义的识别 boreal 森林区域（像素）以及定义北美和欧亚 boreal 森林研究区域的文件。