DOI: 10.1175/JCLI-D-14-00653.1
Scopus记录号: 2-s2.0-84957704432
论文题名: Global patterns of the contributions of storm frequency, intensity, and seasonality to interannual variability of precipitation
作者: Good S.P. ; Guan K. ; Caylor K.K.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2016
卷: 29, 期: 1 起始页码: 3
结束页码: 15
语种: 英语
Scopus关键词: Climate change
; Precipitation (meteorology)
; Storms
; Water resources
; Climate characteristics
; Interannual variability
; Intraseasonal variability
; Precipitation characteristics
; Precipitation variability
; Satellite observations
; Seasonal variability
; Variability
; Rain
; annual variation
; correlation
; precipitation (climatology)
; rainfall
; seasonality
; storm
; Amazon Basin
; Central Africa
; Pacific Ocean
; Pacific Ocean (Equatorial)
; United States
英文摘要: Interannual variation in precipitation totals is a critical factor governing the year-to-year availability of water resources, yet the connection between interannual precipitation variability and underlying event- and seasonscale precipitation variability remains unclear. In this study, tropical andmidlatitude precipitation characteristics derived from extensive station records and high-frequency satellite observations were analyzed to attribute the fraction of interannual variability arising as a result of individual variability in precipitation event intensity, frequency, and seasonality, as well as the cross-correlation between these factors at the global scale. This analysis demonstrates that variability in the length of the wet season is themost important factor globally, causing 52%of the total interannual variability, while variation in the intensity of individual rainfall events contributes 31%and variability in interstorm wait times contributes only 17%. Spatial patterns in the contribution of each of these intra-annual rainfall characteristics are informative, with regions such as Indonesia and southwestern North America primarily influenced by seasonality, while regions such as the easternUnited States, centralAfrica, and the upper Amazon basin are strongly influenced by storm intensity and frequency. A robust cross-correlation between climate characteristics is identified in the equatorial Pacific, revealing an increased interannual variability over what is expected based on the variability of individual events. This decomposition of interannual variability identifies those regions where accurate representation of daily and seasonal rainfall statistics is necessary to understand and correctly model rainfall variability at longer time scales. © 2016 American Meteorological Society. 资助项目: NSF, National Science Foundation
; NSF, National Science Foundation
; NSF, National Science Foundation
; NSF, National Science Foundation
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/50287
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Biological and Ecological Engineering, Oregon State University, Corvallis, OR, United States; Department of Earth System Science, Stanford University, Stanford, CA, United States; Department of Natural Resources and Environmental Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, United States; Department of Civil and Environmental Engineering, Princeton University, Princeton, NJ, United States
Recommended Citation:
Good S.P.,Guan K.,Caylor K.K.. Global patterns of the contributions of storm frequency, intensity, and seasonality to interannual variability of precipitation[J]. Journal of Climate,2016-01-01,29(1)