Fire Behavior Assessment Team: pre- and post-fire tree data, raw and processed

This data publication contains the raw and processed tree/canopy fuels data pre- and post-fire collected by the Fire Behavior Assessment Team (FBAT) on wildland fires in the United States from 2003-2017. Logistics (proximity to instrumentation/crew members), funding, fire activity, and monitoring questions influenced the geographic regions and fires where sampling was attempted, for instance, fuel treatments recorded in the Forest Service Activity Tracking System (FACTS), as well as tree mortality areas, were each targets for FBAT sampling in the past. FBAT is an interagency group of primarily Forest Service employees with both monitoring and fireline qualifications which collects pre- and post-fire fuels and tree data along with fire behavior measurements on wildland fires. Data include raw tree data (measurements collected from the field), processed data (stand characteristics and canopy fuels variables) computed using the Forest Vegetation Simulator (FVS), and key documents pertaining to the methods so that others could replicate or modify data post-processing. The location (GPS) data, surface fuels and fire behavior data are archived separately.These data are collected by the FBAT team to provide measures of pre-fire fuels/vegetation, active fire behavior (with sensors in the fire), and post-fire fuels/vegetation conditions during wildfires and prescribed fires for improving understanding and tools related to fire behavior and fire effects.For more information about FBAT data see: https://www.fs.usda.gov/adaptivemanagement/projects_main_fbat.php. These data were published on 10/03/2018. On 12/03/2020 this data publication was updated to include a supplemental file that provides a diagram of the FBAT plot layout and a brief list of key method changes throughout the years FBAT has taken data to present (2020). On 01/30/2024, we have added ACCDB files (updated Access format) for all MDB files. A few minor metadata updates were also made at this time, which included updating all fs.fed.us URLs.

本数据集收录了2003至2017年间，美国火灾行为评估小组（Fire Behavior Assessment Team, FBAT）在野外火灾现场采集的火灾前后林木/冠层可燃物原始与处理后数据。采样实施的地理区域与火灾对象受后勤保障（如仪器与人员部署距离）、经费、火灾活动及监测需求等因素影响。例如，过往FBAT采样的目标区域包括美国林务局活动跟踪系统（Forest Service Activity Tracking System, FACTS）记录的可燃物处理区域，以及林木死亡区。FBAT为跨机构工作组，核心成员多为具备监测与火线作业资质的美国林务局雇员，负责在野外火灾现场采集火灾前后的可燃物、林木数据及火灾行为观测数据。数据集包含原始林木数据（野外实地采集的测量结果）、采用森林植被模拟器（Forest Vegetation Simulator, FVS）计算得到的处理后数据（林分特征与冠层可燃物变量），以及与数据处理方法相关的关键文档，以供其他研究者复刻或修改后处理流程。位置（GPS）数据、地表可燃物数据及火灾行为数据单独归档存储。FBAT团队采集本数据集，旨在为野火与计划烧除作业提供火灾前可燃物/植被状况、实时火灾行为（通过火场内置传感器获取）及火灾后可燃物/植被状况的量化数据，以增进对火灾行为与火灾影响的认知，并优化相关研究工具。如需了解FBAT数据集的更多信息，请访问：https://www.fs.usda.gov/adaptivemanagement/projects_main_fbat.php。本数据集于2018年10月3日正式发布。2020年3月12日，本数据集完成更新，新增补充文件，其中包含FBAT样地布局示意图，以及FBAT自数据采集启动至2020年期间关键方法变更的简要清单。2024年1月30日，我们为所有MDB文件新增了ACCDB格式文件（升级后的Access格式），并同步完成了少量元数据更新，其中包括所有fs.fed.us网址的更新。