Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017GL073564 |
Regional distribution of large blowdown patches across Amazonia in 2005 caused by a single convective squall line | |
Araujo, Raquel Fernandes1; Nelson, Bruce Walker1; Souza Celes, Carlos Henrique1; Chambers, Jeffrey Q.2 | |
2017-08-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:15 |
文章类型 | Article |
语种 | 英语 |
国家 | Brazil; USA |
英文摘要 | In mid-January 2005 a convective squall line traversed 4.5 x 10(6) km(2) of Amazonia from southwest to northeast. As seen in Landsat images, this atypical convective storm left blowdown imprints with diffuse geometry, unlike the fan-shaped wind disturbance of much more frequent east-to-west propagating squall lines. Previous work reported 0.2% of the forest area damaged by this one relatively rare event within one Landsat image and assumed similar disturbance across the entire traverse. We mapped convective wind damage impact to the region in 2005 by identifying large-scale (>4 ha) blowdown imprints in 30 Landsat images. The diffuse-type imprints associated with this single squall line contributed up to 60-72% of total 2005 wind-disturbed area detected across the region, but damage was highly concentrated in central Amazonia. Consequently, the distribution of large wind damage patches in 2005 across Amazonia was very different from long-term average. Regional distribution of wind-driven tree mortality for smaller patch sizes remains unknown. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000408379000027 |
WOS关键词 | FOREST ; DISTURBANCE |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/28077 |
专题 | 气候变化 |
作者单位 | 1.Brazilian Natl Inst Amazon Res, Manaus, Amazonas, Brazil; 2.Univ Calif Berkeley, Dept Geog, Berkeley, CA 94720 USA |
推荐引用方式 GB/T 7714 | Araujo, Raquel Fernandes,Nelson, Bruce Walker,Souza Celes, Carlos Henrique,et al. Regional distribution of large blowdown patches across Amazonia in 2005 caused by a single convective squall line[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(15). |
APA | Araujo, Raquel Fernandes,Nelson, Bruce Walker,Souza Celes, Carlos Henrique,&Chambers, Jeffrey Q..(2017).Regional distribution of large blowdown patches across Amazonia in 2005 caused by a single convective squall line.GEOPHYSICAL RESEARCH LETTERS,44(15). |
MLA | Araujo, Raquel Fernandes,et al."Regional distribution of large blowdown patches across Amazonia in 2005 caused by a single convective squall line".GEOPHYSICAL RESEARCH LETTERS 44.15(2017). |
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