DOI: 10.1016/j.atmosres.2018.10.009
Scopus记录号: 2-s2.0-85055107796
论文题名: The Amazon basin as a moisture source for an Atlantic Walker-type Circulation
作者: Hierro R. ; Llamedo P. ; de la Torre A. ; Alexander P.
刊名: Atmospheric Research
ISSN: 1698095
出版年: 2019
卷: 216 起始页码: 160
结束页码: 166
语种: 英语
Scopus关键词: Earth atmosphere
; Meteorology
; Andes ranges
; Austral summers
; Freshwater inputs
; Global patterns
; Heat sources
; Moisture sources
; Radio occultations
; Tropical atmospheres
; Water vapor
; atmospheric moisture
; GPS
; heat source
; humidity
; Walker circulation
; water vapor
; Amazon Basin
; Atlantic Ocean
英文摘要: The Amazon basin constitutes the most developed rainforest in the world, accounting for 15-20% of the global freshwater input into the oceans. The low level flow over this region is climatologically dominated by the Atlantic anticycslone and the trade winds. This yields an incoming oceanic moist air to the continent from the East, which is forced to lift up over the Andes range at the West. The confluence of the entrance of humidity, heat, evaporation and strong rainfall results in an accumulation of water vapor in this region. There is a statistically significant surplus of humidity over land as compared to over ocean (the largest difference is found during austral summer). This turns the Amazon basin into one of the most important heat sources for the tropical atmosphere, feeding a global pattern like the Atlantic Walker-type circulation, where the ascent stage is not over ocean but over land. The Global Positioning System radio occultation data show to be an excellent tool to observe the accumulated water vapor above the Amazon basin. © 2018 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/122382
Appears in Collections: 气候变化事实与影响
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作者单位: CONICET/Facultad de Ingeniería, Universidad Austral, LIDTUA (CIC), Argentina; CONICET/Instituto de Física de Buenos Aires (IFIBA), Argentina
Recommended Citation:
Hierro R.,Llamedo P.,de la Torre A.,et al. The Amazon basin as a moisture source for an Atlantic Walker-type Circulation[J]. Atmospheric Research,2019-01-01,216