DOI: 10.3354/cr01450
Scopus记录号: 2-s2.0-85020468272
论文题名: The impact of climate change on the characteristics of the frost-free season over the contiguous USA as projected by the NARCCAP model ensembles
作者: Zhong S. ; Yu L. ; Winkler J.A. ; Tang Y. ; Heilman W.E. ; Bian X.
刊名: Climate Research
ISSN: 0936577X
出版年: 2017
卷: 72, 期: 1 起始页码: 53
结束页码: 72
语种: 英语
英文关键词: Climate change impact
; Ensemble projection
; Frost dates
; Frost-free season
; Growing season
; NARCCAP
Scopus关键词: adaptation
; agricultural production
; climate change
; climate modeling
; ecosystem management
; frost
; future prospect
; general circulation model
; growing season
; mountain region
; regional climate
; seasonal variation
; uncertainty analysis
; California
; Great Plains
; United States
英文摘要: Understanding the impacts of climate change on frost-free seasons is key to designing effective adaptation strategies for ecosystem management and agricultural production. This study examines the potential changes in the frost-free season length between historical (1971-2000) and future (2041-2070) periods over the contiguous USA with a focus on spatial variability and the uncertainties surrounding the projections, using daily minimum temperature outputs from a 6-member ensemble composed of 3 regional-climate models nested within 3 general-circulation models provided by the North American Regional Climate Change Assessment Program (NARCCAP). Despite broad agreement among ensemble members on future advance (delay) of last spring (first autumn) frost and thus an increase in the frost-free season length across the USA, large inter-model spread, an indication of high uncertainties, exists especially over the mountainous West. The uncertainty surrounding the first autumn frost is the major contributor to the high uncertainty in the projected frost-free season length for the West, in contrast to other regions, especially the Great Plains, where the ensemble spread in the last spring frost contributes more to the season-length uncertainty. The lengthening is not symmetric in spring and autumn, and the asymmetry, which varies by region and model, is relatively small in the eastern and central USA, and large in the western USA. Across California and portions of the Southwest, the advance in the last spring frost will be more than the delay in the first autumn frost. Elsewhere in the western USA, especially over high terrain, the frost-free season will lengthen more in autumn than in spring. © Inter-Research 2017. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/116329
Appears in Collections: 气候减缓与适应
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Recommended Citation:
Zhong S.,Yu L.,Winkler J.A.,et al. The impact of climate change on the characteristics of the frost-free season over the contiguous USA as projected by the NARCCAP model ensembles[J]. Climate Research,2017-01-01,72(1)