Northern Fennoscandia 300 Year Spring Temperature Reconstruction Loader, N.J.; Jalkanen, R.; McCarroll, D.; Moberg, A. Loader, N.J. Jalkanen, R. McCarroll, D. Moberg, A. Air Temperature Reconstruction earth science/paleoclimate/climate reconstructions|historical (surface air temperature,null,95% confidence interval lower bound,degree Celsius,Apr-May,climate reconstructions|historical,null,null,N,documentary evidence of ice break up dates from Tornio River) earth science/paleoclimate/climate reconstructions|historical (surface air temperature,null,95% confidence interval upper bound,degree Celsius,Apr-May,climate reconstructions|historical,null,null,N,documentary evidence of ice break up dates from Tornio River) earth science/paleoclimate/climate reconstructions|historical (age,null,null,year Common Era,null,climate reconstructions|historical,null,null,N,null) earth science/paleoclimate/climate reconstructions|historical (surface air temperature,null,null,degree Celsius,Apr-May,climate reconstructions|historical,null,null,N,documentary evidence of ice break up dates from Tornio River) earth science/paleoclimate/reconstructions (Tornionjoki>LATITUDE 65.84>LONGITUDE 24.81) 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. STUDY NOTES: Reconstruction of spring (April-May) mean air temperature for northern Fennoscandia based on the Tornionjoki (Tornio river) cryophenological record of ice break-up dates (Kajander 1993, 1995). NCDC-Paleoclimatology https://www.ncdc.noaa.gov/data-access/paleoclimatology-data - Bauer Bruce Investigator : Loader, N.J. Investigator : Jalkanen, R. Investigator : McCarroll, D. Investigator : Moberg, A. 2011-08-23 ONLINE Files online, ASCII https://www.ncdc.noaa.gov/paleo/study/11927 https://www1.ncdc.noaa.gov/pub/data/paleo/historical/europe/tornio2011temperature.txt https://www1.ncdc.noaa.gov/pub/data/paleo/historical/europe/tornio2011temperature.xls https://www1.ncdc.noaa.gov/pub/data/paleo/historical/europe/tornio2011temperature.txt https://www1.ncdc.noaa.gov/pub/data/paleo/historical/europe/tornio2011temperature.xls English https://www.ncdc.noaa.gov/paleo/study/11927 https://www1.ncdc.noaa.gov/pub/data/paleo/historical/europe/tornio2011temperature.txt https://www1.ncdc.noaa.gov/pub/data/paleo/historical/europe/tornio2011temperature.xls Loader, N.J., R. Jalkanen, D. Mccarroll, and A. Moberg. 2011. Spring temperature variability in northern Fennoscandia AD 1693-2011. Journal of Quaternary Science, Vol. 26, Issue 6, pp. 566-570, August 2011. DOI: 10.1002/jqs.1528 START YEAR: 1693 AD * END YEAR: 2011 AD 24.81 65.84 24.81 65.84