Spring temperature variability in northern Fennoscandia AD 1693–2011
Article first published online: 27 JUL 2011
Copyright © 2011 John Wiley & Sons, Ltd.
Journal of Quaternary Science
Volume 26, Issue 6, pages 566–570, August 2011
How to Cite
Loader, N. J., Jalkanen, R., Mccarroll, D. and Moberg, A. (2011), Spring temperature variability in northern Fennoscandia AD 1693–2011. J. Quaternary Sci., 26: 566–570. doi: 10.1002/jqs.1528
- Issue published online: 10 AUG 2011
- Article first published online: 27 JUL 2011
- Manuscript Accepted: 9 JUN 2011
- Manuscript Revised: 8 JUN 2011
- Manuscript Received: 17 DEC 2010
- Tornio river
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. Copyright © 2011 John Wiley & Sons, Ltd.