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Spring temperature variability in northern Fennoscandia AD 1693–2011
Stockholm University, Faculty of Science, Department of Physical Geography and Quaternary Geology.
2011 (English)In: Journal of Quaternary Science, ISSN 0267-8179, E-ISSN 1099-1417, Vol. 26, no 6, 566-570 p.Article in journal (Refereed) Published
Abstract [en]

A reconstruction of spring (April–May) temperature for northern Fennoscandia developed from the Tornionjoki (Tornio river) long cryophenological record of ice break-up dates, back to AD 1693, is presented. The record is strongly climatically sensitive and explains 67% of the variance in the instrumental data over the last 150 years. The record exhibits a stepped decrease in the duration of the river's ice cover by 14 days, equivalent to an increase in April–May mean temperature of approximately 2.5°C over the last three centuries. The relationship between the date of ice break-up, and accumulated daily mean temperatures (>0°C) is investigated. Uncertainty in the observation of ice break-up is also considered in addition to the potential of this time series for regional climate model validation.

Place, publisher, year, edition, pages
2011. Vol. 26, no 6, 566-570 p.
Keyword [en]
cryophenology, Haparanda, ice, palaeoclimate, Tornionjoki, Tornio river
National Category
Climate Research
Research subject
Physical Geography
URN: urn:nbn:se:su:diva-60403DOI: 10.1002/jqs.1528ISI: 000294583000002OAI: diva2:434714
Millennium (EU 017008)Climate in the last millennium (VR 621-2007-45642)Reconstructing climate in the last millennium (VR 622-2009-7515)
Available from: 2011-08-16 Created: 2011-08-16 Last updated: 2012-01-17Bibliographically approved

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Moberg, Anders
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