DOI: 10.1002/grl.50377
论文题名: Intensification of the Amazon hydrological cycle over the last two decades
作者: Gloor M. ; Brienen R.J.W. ; Galbraith D. ; Feldpausch T.R. ; Schöngart J. ; Guyot J.-L. ; Espinoza J.C. ; Lloyd J. ; Phillips O.L.
刊名: Geophysical Research Letters
ISSN: 0094-9106
EISSN: 1944-8837
出版年: 2013
卷: 40, 期: 9 起始页码: 1729
结束页码: 1733
语种: 英语
英文关键词: Amazon
; cycle
; hydrological
Scopus关键词: Amazon
; Atmospheric water vapor
; cycle
; hydrological
; Hydrological cycles
; Intertropical convergence zone
; Precipitation change
; Tropical atlantic
; Atmospheric temperature
; Catchments
; Lasers
; Wetting
; Tropics
; catchment
; climate modeling
; hydrological cycle
; intertropical convergence zone
; peak flow
; precipitation (climatology)
; river discharge
; sea surface temperature
; trend analysis
; warming
; wetting-drying cycle
; Amazon Basin
; Atlantic Ocean
; Atlantic Ocean (North)
英文摘要: The Amazon basin hosts half the planet's remaining moist tropical forests, but they may be threatened in a warming world. Nevertheless, climate model predictions vary from rapid drying to modest wetting. Here we report that the catchment of the world's largest river is experiencing a substantial wetting trend since approximately 1990. This intensification of the hydrological cycle is concentrated overwhelmingly in the wet season driving progressively greater differences in Amazon peak and minimum flows. The onset of the trend coincides with the onset of an upward trend in tropical Atlantic sea surface temperatures (SST). This positive longer-term correlation contrasts with the short-term, negative response of basin-wide precipitation to positive anomalies in tropical North Atlantic SST, which are driven by temporary shifts in the intertropical convergence zone position. We propose that the Amazon precipitation changes since 1990 are instead related to increasing atmospheric water vapor import from the warming tropical Atlantic. Key PointsIntensification of Amazon Hydrological Cycle since 1990Revealed by both river discharge and precipitation recordsIn parallel onset of tropical Atlantic warming offering explanation ©2013. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84879095589&doi=10.1002%2fgrl.50377&partnerID=40&md5=fa2cd3df4e39cce1bc20b04fc2e091d2
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6370
Appears in Collections: 气候减缓与适应
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作者单位: School of Geography, University of Leed, Woodhouse Lane, Leeds, United Kingdom
Recommended Citation:
Gloor M.,Brienen R.J.W.,Galbraith D.,et al. Intensification of the Amazon hydrological cycle over the last two decades[J]. Geophysical Research Letters,2013-01-01,40(9).