气候变化领域集成服务门户(CCPortal): The Little Ice Age signature in a 700-year high-resolution chironomid record of summer temperatures in the Central Eastern Alps

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DOI	10.1007/s00382-018-4555-y
	The Little Ice Age signature in a 700-year high-resolution chironomid record of summer temperatures in the Central Eastern Alps
	Ilyashuk E.A.; Heiri O.; Ilyashuk B.P.; Koinig K.A.; Psenner R.
发表日期	2019
ISSN	0930-7575
起始页码	6953
结束页码	6967
卷号	52 期号:11
英文摘要	Despite the fact that the Little Ice Age (LIA) is well documented for the European Alps, substantial uncertainties concerning the regional spatio-temporal patterns of temperature changes associated with the LIA still exist, especially for their eastern sector. Here we present a high-resolution (4–10 years) 700-year long mean July air temperature reconstruction based on subfossil chironomid assemblages from a remote lake in the Austrian Eastern Alps to gain further insights into the LIA climatic deterioration in the region. The record provides evidence for a prolonged period of predominantly cooler conditions during AD 1530–1920, broadly equivalent to the climatically defined LIA in Europe. The main LIA phase appears to have consisted of two cold time intervals divided by slightly warmer episodes in the second half of the 1600s. The most severe cooling occurred during the eighteenth century. The LIA temperature minimum about 1.5 °C below the long-term mean recorded in the mid-1780 s coincides with the strongest volcanic signal found in the Greenland ice cores over the past 700 years and may be, at least in part, a manifestation of cooling that followed the long-lasting AD 1783–1784 Laki eruption. A continuous warming trend is evident since ca AD 1890 (1.1 °C in 120 years). The chironomid-inferred temperatures show a clear correlation with the instrumental data and reveal a close agreement with paleotemperature evidence from regional high-elevation tree-ring chronologies. A considerable amount of the variability in the temperature record may be linked to changes in the North Atlantic Oscillation. © 2018, The Author(s).
英文关键词	Alps; Chironomidae; Little Ice Age; LTER; Mountain lake; Paleotemperature
语种	英语
scopus关键词	lake; Little Ice Age; North Atlantic Oscillation; paleotemperature; subfossil; summer; Alps; Eastern Alps; Chironomidae
来源期刊	Climate Dynamics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/146240
作者单位	Institute of Ecology, University of Innsbruck, Technikerstraße 25, Innsbruck, 6020, Austria; Geoecology, Department of Environmental Sciences, University of Basel, Klingelbergstrasse 27, Basel, 4056, Switzerland; Institute for Alpine Environment, Eurac Research, Viale Druso 1, Bozen/Bolzano, 39100, Italy
推荐引用方式 GB/T 7714	Ilyashuk E.A.,Heiri O.,Ilyashuk B.P.,et al. The Little Ice Age signature in a 700-year high-resolution chironomid record of summer temperatures in the Central Eastern Alps[J],2019,52(11).
APA	Ilyashuk E.A.,Heiri O.,Ilyashuk B.P.,Koinig K.A.,&Psenner R..(2019).The Little Ice Age signature in a 700-year high-resolution chironomid record of summer temperatures in the Central Eastern Alps.Climate Dynamics,52(11).
MLA	Ilyashuk E.A.,et al."The Little Ice Age signature in a 700-year high-resolution chironomid record of summer temperatures in the Central Eastern Alps".Climate Dynamics 52.11(2019).