An analysis of spotting distances during the 2017 fire season in the Northern Rockies, USA
An analysis of spotting distances during the 2017 fire season in the Northern Rockies, USA
复制标题
美国北落基山脉 2017 年火灾季节的发现距离分析
DOI：
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发表时间：
2019
影响因子：
2.2
通讯作者：
D. Blunck
中科院分区：
文献类型：
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作者：
Wesley G. Page;N. Wagenbrenner;B. Butler;D. Blunck
2017年火季在美国北落基山脉地区燃烧的野火为评估利用热点位置的大范围和时间有限的红外数据来确定几个环境变量对发现距离的影响的适宜性提供了机会。具体地说，评估了每种独特的火灾和白天组合的最大观察到的现场火灾距离与风速、植被和地形的地理参考环境数据以及特定火灾特征(大小、火灾周长形状和增长)之间的相关性。这些数据也被用来评估Albini(1979)开发的一个流行的理论模型，该模型用于预测单株和群木燃烧的最大定位距离。结果表明，最大观测点火距与火势发展与风速的交互作用呈显著正相关。最大发现距离与火场周长、林冠高度、地形陡度呈显著负相关。对Albini(1979)模型的评估表明，选择一个较高的潜在风速估计值对于减少低估最大探测距离的可能性很重要。
The wildfires that burned in the Northern Rockies region of the USA during the 2017 fire season provided an opportunity to evaluate the suitability of using broadscale and temporally limited infrared data on hot spot locations to determine the influence of several environmental variables on spotting distance. Specifically, correlations between the maximum observed spot fire distance for each unique combination of fire and day and geo-referenced environmental data on wind speed, vegetation, and terrain, along with specific fire characteristics (size, fire perimeter shape, and growth), were assessed. The data were also utilized to evaluate a popular theoretical model developed by Albini (1979) for predicting the maximum spotting distance for single and group tree torching. The results suggested a significant positive correlation between the maximum observed spot fire distance and an interaction between fire growth and wind speed. Significant negative correlations between maximum spotting distance and fire perimeter shape, canopy height, and terrain steepness were also discovered. The evaluation of Albini’s (1979) model suggested that selecting a high estimate of potential wind speed was important to minimize the likelihood of underpredicting maximum spotting distance.
影响因子：
6.6
作者：
Nakagawa, Shinichi;Schielzeth, Holger
通讯作者：
Schielzeth, Holger