NOAA/WDS Paleoclimatology - Northern Fennoscandia 300 Year Spring Temperature Reconstruction
收藏NOAA National Centers for Environmental Information2026-04-23 收录
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https://www.ncei.noaa.gov/metadata/geoportal/rest/metadata/item/noaa-recon-11927/html
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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.
