DOI: 10.1002/2014GL062451
论文题名: Multidecadal variability of the continental precipitation annual amplitude driven by AMO and ENSO
作者: García-García D. ; Ummenhofer C.C.
刊名: Geophysical Research Letters
ISSN: 0094-9021
EISSN: 1944-8752
出版年: 2015
卷: 42, 期: 2 起始页码: 526
结束页码: 535
语种: 英语
英文关键词: AMO
; annual amplitude
; ENSO
; multidecadal variability
; precipitation
Scopus关键词: Atmospheric pressure
; Climatology
; Precipitation (chemical)
; AMO
; Annual amplitude
; Atlantic multidecadal oscillations
; Correlation coefficient
; ENSO
; Low frequency variability
; Low-frequency variations
; Multidecadal variability
; Precipitation (meteorology)
; amplitude
; anthropogenic effect
; climate modeling
; decadal variation
; El Nino-Southern Oscillation
; environmental assessment
; hydrological cycle
; precipitation (climatology)
; teleconnection
英文摘要: As the water vapor content in the atmosphere scales with temperature, a warmer world is expected to feature an intensification of the hydrological cycle. Work to date has mainly focused on mean precipitation changes, whose connection to climatic modes is elusive at a global scale. Here we show that continental precipitation annual amplitude, which represents the annual range between minimum and maximum (monthly) rainfall, covaries with a linear combination of the Atlantic Multidecadal Oscillation and low-frequency variations in the El Niño-Southern Oscillation on a decadal to multidecadal scale with a correlation coefficient of 0.92 (P-<-0.01). The teleconnection is a result of changes in moisture transport in key regions. Reported trends in the annual amplitude of global precipitation in recent decades need to be assessed in light of this substantial low-frequency variability, which could mask or enhance an anthropogenic signal in hydrological cycle changes. © 2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84923600483&doi=10.1002%2f2014GL062451&partnerID=40&md5=218e7bf25fdd86691e81fe302e80235a
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8637
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Department of Applied Mathematics, EPS, University of Alicante, San Vicente del Raspeig, Spain
Recommended Citation:
García-García D.,Ummenhofer C.C.. Multidecadal variability of the continental precipitation annual amplitude driven by AMO and ENSO[J]. Geophysical Research Letters,2015-01-01,42(2).