DOI: 10.1175/JCLI-D-11-00356.1
Scopus记录号: 2-s2.0-84865713227
论文题名: Investigating interannual variability of precipitation at the global scale: Is there a connection with seasonality?
作者: Fatichi S. ; Ivanov V.Y. ; Caporali E.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2012
卷: 25, 期: 16 起始页码: 5512
结束页码: 5523
语种: 英语
Scopus关键词: Annual precipitation
; Biogeochemical process
; Coefficient of variation
; Global scale
; Interannual variability
; Long range dependence
; Long-term variations
; Precipitation anomalies
; Precipitation variability
; Reanalysis
; Seasonality
; Spatial organization
; Spatial patterns
; Higher order statistics
; Precipitation (chemical)
; Precipitation (meteorology)
; Statistics
; Stochastic systems
; Climate change
; annual variation
; correlation
; precipitation (climatology)
; seasonality
; statistical analysis
英文摘要: Interannual variability of precipitation can directly or indirectly affect many hydrological, ecological, and biogeochemical processes that, in turn, influence climate.Despite the significant importance of the phenomenon, few studies have attempted to elucidate spatial patterns of this variability at the global scale. This study uses land gauge precipitation records of theGlobalHistoricalClimatologyNetwork, version 2, aswell as reanalysis data to provide an assessment of the spatial organization of characteristics of precipitation interannual variability. The coefficient of variation, skewness, and short- and long-range dependence of the precipitation variability are analyzed. Among the major inferences is that the coefficient of variation of annual precipitation shows a significant correlation with intra-annual seasonality. Specifically, subyearly precipitation anomalies occurring in locations with pronounced seasonality affect the total yearly amount, imposing a higher variability in the annual precipitation fluctuations. Furthermore, the study illustrates that a positive skewness of the distribution of annual precipitation is a robust property worldwide and its magnitude is related to the coefficient of variation. Additionally, annual precipitation exhibits very weak small-lag autocorrelation. Conversely, the intensity of long-memory-long-range dependence is significantly larger than zero, hinting that organized long-term variations are an important feature of the interannual variability of precipitation. © 2012 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/52289
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Civil and Environmental Engineering, University of Firenze, Florence, Italy; Institute of Environmental Engineering, ETH Zurich, Zurich, Switzerland; Department of Civil and Environmental Engineering, University of Michigan, Ann Arbor, MI, United States
Recommended Citation:
Fatichi S.,Ivanov V.Y.,Caporali E.. Investigating interannual variability of precipitation at the global scale: Is there a connection with seasonality?[J]. Journal of Climate,2012-01-01,25(16)