DOI: 10.1007/s10584-018-2140-3
Scopus记录号: 2-s2.0-85040867993
论文题名: Spatiotemporal changes in the size and shape of heat waves over North America
作者: Keellings D. ; Bunting E. ; Engström J.
刊名: Climatic Change
ISSN: 0165-0009
EISSN: 1573-1480
出版年: 2018
卷: 147, 期: 2018-01-02 起始页码: 165
结束页码: 178
语种: 英语
Scopus关键词: Climate change
; Ecology
; Climate data
; High resolution
; Landscape ecology
; Methodological approach
; Size and shape
; Spatial extent
; Spatial relationships
; Spatio-temporal changes
; Climatology
; climate change
; heat wave
; historical record
; methodology
; regional climate
; shape
; size
; spatiotemporal analysis
; North America
英文摘要: Heat waves are occurring more frequently across the globe and are likely to increase in intensity and duration under climate change. Much work has already been completed on attributing causes of observed heat waves and on modeling their future occurrence, but such efforts are often lacking in exploration of spatial relationships. Based on principles of landscape ecology, we utilized fragmentation metrics to examine the spatiotemporal changes in heat wave shape and occurrence across North America. This methodological approach enables us to examine area, shape, perimeter, and other key metrics. The application of these shape metrics to high-resolution historical (1950–2013) climate data reveals that the total number and spatial extent of heat waves are increasing over the continent, but at an individual heat wave patch level, they are becoming significantly smaller in extent and more complex in shape, indicating that heat waves have become a more widespread and fragmented phenomena. © 2018, Springer Science+Business Media B.V., part of Springer Nature. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/83790
Appears in Collections: 气候减缓与适应 气候变化事实与影响
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作者单位: Department of Geography, University of Alabama, Tuscaloosa, AL, United States; Department of Geography, University of Florida, Gainesville, FL, United States
Recommended Citation:
Keellings D.,Bunting E.,Engström J.. Spatiotemporal changes in the size and shape of heat waves over North America[J]. Climatic Change,2018-01-01,147(2018-01-02)