DOI: 10.1002/joc.5171
论文题名: Mesoscale convective systems over the Amazon basin. Part I: climatological aspects
作者: Rehbein A. ; Ambrizzi T. ; Mechoso C.R.
刊名: International Journal of Climatology
ISSN: 8998418
出版年: 2018
卷: 38, 期: 1 起始页码: 215
结束页码: 229
语种: 英语
英文关键词: Amazon basin
; climatology
; ForTraCC
; mesoscale convective systems
Scopus关键词: Climatology
; Amazon basin
; Austral summers
; Different stages
; ForTraCC
; High resolution
; Infrared satellite images
; Mesoscale Convective System
; Propagation speed
; Storms
; climatology
; convective system
; mesoscale meteorology
; precipitation (climatology)
; satellite imagery
; Amazon Basin
英文摘要: Mesoscale convective systems (MCSs) over the Amazon basin provide a large contribution to regional precipitation, which strongly influences the maintenance of unique ecosystems. Despite the importance of these MCSs, their characteristics are not well described in the literature. The present study uses a 14-year long (2000–2013) data set of high-resolution (4 km; 30 min) infrared satellite images to compile a climatology of MCSs that during the period of analysis were within the borders of the Amazon basin at some point in their lifespan. MCSs that originated over the continent and the ocean are considered separately. It is found that on average about 7200 continental and 50 oceanic MCSs occurred per year in the Amazon basin. The majority (minority) of continental (oceanic) MCSs completed their lifecycles between 3 and 5.5 h. These MCSs are studied separately from those with lifespan longer than 6 h. Continental and oceanic MCSs over the Amazon occurred primarily during austral summer and autumn–winter, respectively. The preferred regions and time for genesis of continental and oceanic MCSs are identified. The average area, propagation speed and direction of displacement for MCSs in the different stages of their lifecycle are also examined. © 2017 Royal Meteorological Society Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/117165
Appears in Collections: 气候减缓与适应
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作者单位: Institute of Astronomy, Geophysics and Atmospheric Sciences, University of São Paulo (USP), Brazil; Department of Atmospheric and Oceanic Sciences, University of California (UCLA), Los Angeles, CA, United States
Recommended Citation:
Rehbein A.,Ambrizzi T.,Mechoso C.R.. Mesoscale convective systems over the Amazon basin. Part I: climatological aspects[J]. International Journal of Climatology,2018-01-01,38(1)