Continental atmospheric circulation over Europe during the Little Ice Age inferred from grape harvest dates

Estimates of climate conditions before the 19th century are based on proxy data reconstructions or sparse meteorological measurements. The reconstruction of the atmospheric circulation that prevailed during the European Little Ice Age (∼1500–1850) has fostered many efforts. This study illustrates a...

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Bibliographic Details
Published in:Climate of the Past
Main Authors: Yiou, P., García de Cortázar-Atauri, I., Chuine, I., Daux, V., Garnier, E., Viovy, N., van Leeuwen, C., Parker, A. K., Boursiquot, J.-M.
Format: Article in Journal/Newspaper
Language:English
Published: Copernicus Publications 2012
Subjects:
Online Access:https://doi.org/10.5194/cp-8-577-2012
https://noa.gwlb.de/receive/cop_mods_00026063
https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00026018/cp-8-577-2012.pdf
https://cp.copernicus.org/articles/8/577/2012/cp-8-577-2012.pdf
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Summary:Estimates of climate conditions before the 19th century are based on proxy data reconstructions or sparse meteorological measurements. The reconstruction of the atmospheric circulation that prevailed during the European Little Ice Age (∼1500–1850) has fostered many efforts. This study illustrates a methodology, combining historical proxies and modern datasets to obtain detailed information on the atmospheric circulation that prevailed over the North Atlantic region during the Little Ice Age. We used reconstructions of temperature gradients over France based on grape harvest dates to infer the atmospheric circulation. We found that blocking situations were more likely in summer, inducing a continental atmospheric flow. This study advocates that the reconstructions of the past atmospheric circulation should take this regime into account.