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DOI	10.2166/wcc.2018.066
	Tropical rainfall patterns driven by reduced sea ice in high boreal latitudes
	Santos I.A.; da Silva M.G.A.J.; da Silva A.S.; Filho O.C.R.
发表日期	2020
ISSN	20402244
起始页码	74
结束页码	85
卷号	11 期号:1
英文摘要	Satellite data enabled the Intergovernmental Panel on Climate Change (IPCC), through Report V, to indicate that the regional distribution of sea ice has been reducing in the Northern hemisphere high latitudes. This study assimilated that reduction into a general circulation model of intermediate complexity to simulate the tropical rainfall response. The Northern hemisphere tropospheric wind field simulations presented a clear similarity to the Northern Annular Mode negative phase. In particular, the meridional wind anomalies of the Northern hemisphere Ferrel cell suggest that the energy upsurge due to the boreal sea ice decrease results in an increase in the amplitude of the Rossby waves, thus connecting the polar zone to the tropics. The 500 hPa vertical motion and the rainfall distribution in the tropical belt simulations show a southward displacement of the Atlantic Intertropical Convergence Zone and also the South Atlantic Convergence Zone. Although several studies indicate the Intertropical Convergence Zone is shifted towards the hemisphere most heated by climatic variations, the apparent disagreement with our results can be understood by considering that some continental sectors in the Northern Hemisphere mid-latitudes have shown cooling in recent years, probably in response to the boreal sea ice decrease. © IWA Publishing 2020.
英文关键词	Northern Annular Mode; Sea ice reduction; SPEEDY model; Tropical rain
语种	英语
scopus关键词	Climate change; Mechanical waves; Rain; Tropics; General circulation model; Intergovernmental panel on climate changes; Intermediate complexity; Intertropical convergence zone; Northern annular mode; Rainfall distribution; Regional distribution; South atlantic convergence zones; Sea ice; amplitude; Arctic Oscillation; climate variation; data assimilation; general circulation model; Intergovernmental Panel on Climate Change; Northern Hemisphere; rainfall; Rossby wave; satellite data; sea ice; troposphere; wind field
来源期刊	Journal of Water and Climate Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/147944
作者单位	Laboratorio de Meteorologia, CCT, Universidade Estadual do Norte Fluminense, PO Box 119562, Macaé, RJ 27910-970, Brazil; Departamento de Meteorologia, CCMN, Universidade Federal do Rio de Janeiro, Av. Horacio Macedo, 2030-bloco B – sala 101, Rio de Janeiro, RJ 21941-450, Brazil; Programa de Engenharia Civil, COPPE, Universidade Federal do Rio de Janeiro, Av. Horacio Macedo, 2030-bloco B – sala 101, Rio de Janeiro, RJ 21941-450, Brazil
推荐引用方式 GB/T 7714	Santos I.A.,da Silva M.G.A.J.,da Silva A.S.,et al. Tropical rainfall patterns driven by reduced sea ice in high boreal latitudes[J],2020,11(1).
APA	Santos I.A.,da Silva M.G.A.J.,da Silva A.S.,&Filho O.C.R..(2020).Tropical rainfall patterns driven by reduced sea ice in high boreal latitudes.Journal of Water and Climate Change,11(1).
MLA	Santos I.A.,et al."Tropical rainfall patterns driven by reduced sea ice in high boreal latitudes".Journal of Water and Climate Change 11.1(2020).