DOI: 10.1029/2017JG004195
Scopus记录号: 2-s2.0-85047617374
论文题名: Atmospheric and Surface Climate Associated With 1986–2013 Wildfires in North America
作者: Hostetler S.W. ; Bartlein P.J. ; Alder J.R.
刊名: Journal of Geophysical Research: Biogeosciences
ISSN: 21698953
出版年: 2018
卷: 123, 期: 5 起始页码: 1588
结束页码: 1609
语种: 英语
英文关键词: climate
; North America
; wildfire
英文摘要: We analyze climate simulations conducted with the RegCM3 regional climate model on 50- and 15-km model grids to diagnose the dependence of wildfire incidence and area burned variations on monthly climate long-term means and anomalies over North America for the period 1986–2013. We created a new wildfire database by merging the Fire Program Analysis Fire-Occurrence Database, the National Interagency Fire Center Fire History Data, and the Canadian National Fire Database. The database includes 2,083,865 daily fire starts that burned a total of 1.25 × 108 ha in North America. We derive long-term climatologies, standardized gamma indices, and composite climate anomalies of atmospheric circulation (500-hPa height and wind) and various surface fields (e.g., solar radiation, soil moisture, vapor pressure deficit, and latent and sensible heat fluxes) to illustrate the climatology of burned area. The immediate and lagged monthly atmospheric circulation and surface climate anomalies differentiate high- and low-fire years and the role of El Niño–Southern Oscillation in wildfire occurrence. Our approach demonstrates the association of the seasonal cycles of wildfire and climate and the strong role of climatic variability in modulating the seasonal cycle as a control of wildfire on monthly time scales. ©2018. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/114041
Appears in Collections: 气候减缓与适应
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作者单位: U.S. Geological Survey, College of Earth, Ocean, and Atmospheric Sciences, Oregon State University, Corvallis, OR, United States; Department of Geography, University of Oregon, Eugene, OR, United States
Recommended Citation:
Hostetler S.W.,Bartlein P.J.,Alder J.R.. Atmospheric and Surface Climate Associated With 1986–2013 Wildfires in North America[J]. Journal of Geophysical Research: Biogeosciences,2018-01-01,123(5)