DOI: 10.1002/grl.50504
论文题名: Paleofire reconstruction based on an ensemble-member strategy applied to sedimentary charcoal
作者: Blarquez O. ; Girardin M.P. ; Leys B. ; Ali A.A. ; Aleman J.C. ; Bergeron Y. ; Carcaillet C.
刊名: Geophysical Research Letters
ISSN: 0094-8948
EISSN: 1944-8679
出版年: 2013
卷: 40, 期: 11 起始页码: 2667
结束页码: 2672
语种: 英语
英文关键词: Charcoal
; Paleofire
; Sediment
Scopus关键词: Accumulation rates
; Data treatment
; Filtering method
; Fire event
; Fire frequencies
; Paleofire
; Smoothing parameter
; Statistical treatment
; Fire hazards
; Sedimentology
; Sediments
; Charcoal
; accumulation rate
; biome
; charcoal
; paleoenvironment
; reconstruction
; sedimentary sequence
; subalpine environment
; uncertainty analysis
英文摘要: Paleofire events obtained from the statistical treatment of sedimentary charcoal records rely on a number of assumptions and user's choices, increasing the uncertainty of reconstructio\ns. Among the assumptions made when analyzing charcoal series is the choice of a filtering method for raw Charcoal Accumulation Rate (CHARraw). As there is no ultimate CHAR raw filtering method, we propose an ensemble-member approach to reconstruct fire events. We modified the commonly used procedure by including a routine replicating the analysis of a charcoal record using custom smoothing parameters. Dates of robust fire events, uncertainties in fire-return intervals and fire frequencies are derived from members' distributions. An application of the method is used to quantify uncertainties due to data treatment in two CHARraw sequences from two different biomes, subalpine and boreal. © 2013 American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84879897121&doi=10.1002%2fgrl.50504&partnerID=40&md5=28a0db8afa44a76c7abe0305beabeeb0
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6212
Appears in Collections: 气候减缓与适应
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作者单位: Université du Québec À Montréal, Montréal, QC, Canada
Recommended Citation:
Blarquez O.,Girardin M.P.,Leys B.,et al. Paleofire reconstruction based on an ensemble-member strategy applied to sedimentary charcoal[J]. Geophysical Research Letters,2013-01-01,40(11).