Little ice age clearly recorded in northern Greenland ice cores
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Date of Publication
1998
Publication Type
Article
Contributor
Fischer, H. | |
Werner, M. | |
Wagenbach, D. | |
Schwager, M. | |
Thorsteinnson, T. | |
Wilhelms, F. | |
Kipfstuhl, J. | |
Sommer, S. |
Subject(s)
Series
Geophysical Research Letters
ISSN or ISBN (if monograph)
0094-8276
Publisher
American Geophysical Union
Language
English
Publisher DOI
BORIS DOI
Description
Four ice cores drilled in the little investigated area of northern and northeastern Greenland were evaluated for their isotopic (δ18O) and chemical content. From these rather uniform records a stable isotope temperature time series covering the last 500 years has been deduced, which reveals distinct climate cooling during the 17th and the first half of the 19th century. Timing of the preindustrial temperature deviations agrees well with other northern hemisphere temperature reconstructions, however, their extent (∼1°C) significantly exceeds both continental records as well as previous southern and central Greenland ice core time series. A 20–30% increase in the sea salt aerosol load during these periods supports accompanying circulation changes over the North Atlantic. Comparison with records of potential natural climate driving forces points to an important role of the long-term solar influence but to only episodically relevant cooling during years directly following major volcano eruptions.
File(s)
File | File Type | Format | Size | License | Publisher/Copright statement | Content | |
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fischer98grl.pdf | Adobe PDF | 1.53 MB | publisher | published |