Fire Behavior Assessment Team: in-fire videos

This data publication contains in-fire video collected by the Fire Behavior Assessment Team (FBAT) on a subset of wildland fires in the United States from 2003-2019. FBAT collects pre- and post-fire fuels and tree data along with fire behavior measurements on wildland fires. 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. 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. This publication includes the full in-fire videos (60-85 minutes) for multiple plots on 16 different wildland fires. Also included are multiple short, 30-60 second video clips, taken from the full videos, to highlight the variation in fire behavior observed at each plot. The concept behind these short video clips was to give viewers several samples of the typical fire behavior observed at each plot because the full length videos can be quite long.These data are collected by the FBAT team to document how fire burns in the plots sampled. Estimated fire behavior properties such as fire rate of spread, flame length, flame angle, and fire type can be obtained from these video data. In-fire video of fire spread can also document other characteristics of fire behavior, such as movement through spotting, tree torching events, ember production, and fire whirl development. Some observations relating to various stages of flaming and smoldering combustion can be made depending on the level of smoke obscuring the view, as can gross observations of smoke production.This package was originally published on 08/03/2021. On 04/17/2024, videos for the 2013 Rim Fire plots 1-4 were added to this publication (see Process Steps for additional information).

本数据集出版物收录了美国林火行为评估小组（Fire Behavior Assessment Team, FBAT）于2003至2019年间针对美国部分野外火灾采集的火场视频。FBAT是跨机构工作组，核心成员多为美国林务局（Forest Service）雇员，具备监测与火线作业资质，其工作内容涵盖野外火灾发生前后的可燃物、林木数据采集，以及火灾行为参数测量。采样的地理区域与目标火灾受多方面因素制约，包括设备与人员部署距离、资金情况、火灾活动状况及监测需求。例如，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，以及林木死亡区域，均曾为FBAT采样的重点目标。本出版物包含16起不同野外火灾的多个监测样地的完整火场视频，单段完整视频时长为60至85分钟。此外还附带从完整视频中截取的30至60秒短视频片段，用于展示各监测样地观测到的火灾行为差异。设置此类短视频片段的初衷是为使用者提供各典型样地火灾行为的多份样本——毕竟完整视频时长较长，直接浏览存在一定门槛。本数据集由FBAT团队采集，旨在记录目标样地内的火灾燃烧过程。通过这些火场视频数据，可提取火灾蔓延速率、火焰长度、火焰倾角、火灾类型等火灾行为估算属性。此外，记录火灾蔓延过程的火场视频还可用于分析其他火灾行为特征，包括飞火传播、树木燃爆（tree torching）事件、火炭生成以及火旋风形成等。根据烟雾遮挡视野的程度，还可观测明火与阴燃燃烧的不同阶段，以及大致的烟雾生成情况。本数据集最初于2021年8月3日发布。2024年4月17日，本出版物新增了2013年Rim Fire 1至4号样地的相关视频，详细信息参见处理步骤章节。