Holocene winter climate variability in Central and Eastern Europe

Abstract Among abundant reconstructions of Holocene climate in Europe, only a handful has addressed winter conditions, and most of these are restricted in length and/or resolution. Here we present a record of late autumn through early winter air temperature and moisture source changes in East-Centra...

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Autores principales:	Aurel Perșoiu, Bogdan P. Onac, Jonathan G. Wynn, Maarten Blaauw, Monica Ionita, Margareta Hansson
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/e2ee2168c66b407b8d80a7ebe4d43493
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spelling	oai:doaj.org-article:e2ee2168c66b407b8d80a7ebe4d434932021-12-02T15:06:19ZHolocene winter climate variability in Central and Eastern Europe10.1038/s41598-017-01397-w2045-2322https://doaj.org/article/e2ee2168c66b407b8d80a7ebe4d434932017-04-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-01397-whttps://doaj.org/toc/2045-2322Abstract Among abundant reconstructions of Holocene climate in Europe, only a handful has addressed winter conditions, and most of these are restricted in length and/or resolution. Here we present a record of late autumn through early winter air temperature and moisture source changes in East-Central Europe for the Holocene, based on stable isotopic analysis of an ice core recovered from a cave in the Romanian Carpathian Mountains. During the past 10,000 years, reconstructed temperature changes followed insolation, with a minimum in the early Holocene, followed by gradual and continuous increase towards the mid-to-late-Holocene peak (between 4-2 kcal BP), and finally by a decrease after 0.8 kcal BP towards a minimum during the Little Ice Age (AD 1300–1850). Reconstructed early Holocene atmospheric circulation patterns were similar to those characteristics of the negative phase of the North Atlantic Oscillation (NAO), while in the late Holocene they resembled those prevailing in the positive NAO phase. The transition between the two regimes occurred abruptly at around 4.7 kcal BP. Remarkably, the widespread cooling at 8.2 kcal BP is not seen very well as a temperature change, but as a shift in moisture source, suggesting weaker westerlies and increased Mediterranean cyclones penetrating northward at this time.Aurel PerșoiuBogdan P. OnacJonathan G. WynnMaarten BlaauwMonica IonitaMargareta HanssonNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-8 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Aurel Perșoiu Bogdan P. Onac Jonathan G. Wynn Maarten Blaauw Monica Ionita Margareta Hansson Holocene winter climate variability in Central and Eastern Europe
description	Abstract Among abundant reconstructions of Holocene climate in Europe, only a handful has addressed winter conditions, and most of these are restricted in length and/or resolution. Here we present a record of late autumn through early winter air temperature and moisture source changes in East-Central Europe for the Holocene, based on stable isotopic analysis of an ice core recovered from a cave in the Romanian Carpathian Mountains. During the past 10,000 years, reconstructed temperature changes followed insolation, with a minimum in the early Holocene, followed by gradual and continuous increase towards the mid-to-late-Holocene peak (between 4-2 kcal BP), and finally by a decrease after 0.8 kcal BP towards a minimum during the Little Ice Age (AD 1300–1850). Reconstructed early Holocene atmospheric circulation patterns were similar to those characteristics of the negative phase of the North Atlantic Oscillation (NAO), while in the late Holocene they resembled those prevailing in the positive NAO phase. The transition between the two regimes occurred abruptly at around 4.7 kcal BP. Remarkably, the widespread cooling at 8.2 kcal BP is not seen very well as a temperature change, but as a shift in moisture source, suggesting weaker westerlies and increased Mediterranean cyclones penetrating northward at this time.
format	article
author	Aurel Perșoiu Bogdan P. Onac Jonathan G. Wynn Maarten Blaauw Monica Ionita Margareta Hansson
author_facet	Aurel Perșoiu Bogdan P. Onac Jonathan G. Wynn Maarten Blaauw Monica Ionita Margareta Hansson
author_sort	Aurel Perșoiu
title	Holocene winter climate variability in Central and Eastern Europe
title_short	Holocene winter climate variability in Central and Eastern Europe
title_full	Holocene winter climate variability in Central and Eastern Europe
title_fullStr	Holocene winter climate variability in Central and Eastern Europe
title_full_unstemmed	Holocene winter climate variability in Central and Eastern Europe
title_sort	holocene winter climate variability in central and eastern europe
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/e2ee2168c66b407b8d80a7ebe4d43493
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Holocene winter climate variability in Central and Eastern Europe

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