
Raimund Muscheler
Professor

Solar forcing of Holocene summer sea-surface temperatures in the northern North Atlantic
Author
Summary, in English
Mounting evidence from proxy records suggests that variations in solar activity have played a significant role in triggering past climate changes. However, the mechanisms for sun-climate links remain a topic of debate. Here we present a high-resolution summer sea-surface temperature (SST) record covering the past 9300 yr from a site located at the present-day boundary between polar and Atlantic surface-water masses. The record is age constrained via the identification of 15 independently dated tephra markers from terrestrial archives, circumventing marine reservoir age variability problems. Our results indicate a close link between solar activity and SSTs in the northern North Atlantic during the past 4000 yr; they suggest that the climate system in this area is more susceptible to the influence of solar variations during cool periods with less vigorous ocean circulation. Furthermore, the high-resolution SST record indicates that climate in the North Atlantic regions follows solar activity variations on multidecadal to centennial time scales.
Department/s
- Quaternary Sciences
- MERGE: ModElling the Regional and Global Earth system
Publishing year
2015
Language
English
Pages
203-206
Publication/Series
Geology
Volume
43
Issue
3
Document type
Journal article
Publisher
Geological Society of America
Topic
- Geology
Status
Published
ISBN/ISSN/Other
- ISSN: 0091-7613