DOI: 10.1002/2016GL067738
论文题名: Trend and uncertainty in spatial-temporal patterns of hydrological droughts in the Amazon basin
作者: Lopes A.V. ; Chiang J.C.H. ; Thompson S.A. ; Dracup J.A.
刊名: Geophysical Research Letters
ISSN: 0094-9118
EISSN: 1944-8849
出版年: 2016
卷: 43, 期: 7 起始页码: 3307
结束页码: 3316
语种: 英语
英文关键词: Amazon basin
; hydrological drought
; principal component analysis
Scopus关键词: Atmospheric pressure
; Atmospheric temperature
; Drought
; Financial data processing
; Intelligent systems
; Monte Carlo methods
; Oceanography
; Stream flow
; Submarine geophysics
; Surface properties
; Surface waters
; Uncertainty analysis
; Amazon basin
; Climate anomalies
; Highly-correlated
; Hydrological droughts
; Sea surface temperature (SST)
; Sea surface temperature anomalies
; Southern oscillation
; Streamflow records
; Principal component analysis
英文摘要: Spatial-temporal patterns of hydrological droughts in the Amazon basin are derived from drought indices computed from existing streamflow data. Principal component analysis and Monte Carlo simulations are employed to account for the uncertainty and overcome the limitations of missing data in streamflow records. Results show that northern and southern subbasins differ in drought trends and in patterns of correlation between drought indices and climate anomalies originating from the Pacific (El Niño-Southern Oscillation) and Atlantic (differences in sea surface temperature across the equator) Oceans. A significant trend toward more intense droughts is found in the southern subbasins, which is highly correlated to tropical Atlantic Ocean sea surface temperature anomalies. That drying trend might have distinct causes in each subbasin and can lead to potential intensification of regional impacts. © 2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84962724448&doi=10.1002%2f2016GL067738&partnerID=40&md5=0b5d7a02a377eadc0a229b67c571b5fa
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10081
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: National Water Agency, Brasilia, Brazil
Recommended Citation:
Lopes A.V.,Chiang J.C.H.,Thompson S.A.,et al. Trend and uncertainty in spatial-temporal patterns of hydrological droughts in the Amazon basin[J]. Geophysical Research Letters,2016-01-01,43(7).