气候变化领域集成服务门户(CCPortal): Potential impacts of major nineteenth century volcanic eruptions on temperature over Cape Town; South Africa: 1834

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DOI	10.1007/s10584-020-02678-6
	Potential impacts of major nineteenth century volcanic eruptions on temperature over Cape Town; South Africa: 1834–1899
	Picas J.; Grab S.
发表日期	2020
ISSN	0165-0009
起始页码	523
结束页码	544
卷号	159 期号:4
英文摘要	Improving scientific knowledge of volcanic eruptions and their impact on climate is important for testing and improving climate projection models. Despite substantive work on the impacts of major volcanic eruptions on global to regional scale climate, most studies have focussed on the northern hemisphere, with little information available for the southern hemisphere. Nevertheless, there is emerging evidence suggesting that major volcanic eruptions significantly influence weather patterns and climates of the southern hemisphere. Here we examine the climatic impact of major nineteenth century volcanic eruptions at various temporal scales for southernmost Africa (i.e. Cape Town). The oldest and longest available daily instrumental weather record for southern Africa (the South African Astronomical Observatory record) is used to test possible temperature responses following seven major volcanic eruptions (Cosiguina, 1835; Amargura, 1846; Cotopaxi, 1855; Makian, 1861; Cotopaxi, 1877; Krakatau, 1883; Tarawera, 1886) during the period 1834–1899. Following all the eruptions (for which data are available), a mean negative temperature departure is recorded in Cape Town in the second year post-eruption. The most immediate (first ten months) negative temperature response is noted following the four strongest eruptions. Tarawera, the only SH eruption, recorded the strongest and most immediate (months 1–10) mean negative temperature departure (− 0.54 °C). The importance of investigating post-eruption climatic responses at a seasonal temporal scale is demonstrated; for instance by the identification of cooler than ‘normal’ but extreme unidirectional temperature departures during austral autumn. Similarly, investigations at the monthly temporal scale enabled the identification of an increase in extreme opposing month-to-month temperature variability following such eruptions. © 2020, Springer Nature B.V.
英文关键词	Cape Town; Nineteenth century; Temperature response; Volcanic eruptions
语种	英语
scopus关键词	Climate models; Lasers; Masers; Temperature; Cape Town; Cape Town , South Africa; Negative temperatures; Nineteenth century; South african astronomical observatories; Temperature response; Temperature variability; Volcanic eruptions; Volcanoes; climate modeling; nineteenth century; Northern Hemisphere; Southern Hemisphere; spatiotemporal analysis; temperature effect; volcanic eruption; Cape Town; Krakatau; Lampung; South Africa; Western Cape
来源期刊	Climatic Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/147206
作者单位	School of Geography, Archaeology and Environmental Studies, University of the Witwatersrand, Johannesburg, South Africa
推荐引用方式 GB/T 7714	Picas J.,Grab S.. Potential impacts of major nineteenth century volcanic eruptions on temperature over Cape Town; South Africa: 1834–1899[J],2020,159(4).
APA	Picas J.,&Grab S..(2020).Potential impacts of major nineteenth century volcanic eruptions on temperature over Cape Town; South Africa: 1834–1899.Climatic Change,159(4).
MLA	Picas J.,et al."Potential impacts of major nineteenth century volcanic eruptions on temperature over Cape Town; South Africa: 1834–1899".Climatic Change 159.4(2020).