Browsing Geophysical Institute by Author "Jansen, Eystein"
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Holocene trends in the foraminifer record from the Norwegian Sea and the North Atlantic Ocean
Andersson, Carin; Pausata, Francesco S. R.; Jansen, Eystein; Risebrobakken, Bjørg; Telford, Richard J. (Peer reviewed; Journal article, 2010-03-30)The early to mid-Holocene thermal optimum is a well-known feature in a wide variety of paleoclimate archives from the Northern Hemisphere. Reconstructed summer temperature anomalies from across northern Europe show a clear ... -
Mg/Ca ratios in the planktonic foraminifer Neogloboquadrina pachyderma (sinistral) in the northern North Atlantic/Nordic Seas
Meland, Marius Yddal; Jansen, Eystein; Elderfield, Henry; Dokken, Trond Martin; Olsen, Are; Bellerby, Richard G. J. (Peer reviewed; Journal article, 2006-06-15)In core top samples in the Nordic Seas, Mg/Ca ratios of N. pachyderma (sin.) are generally consistent with previous high-latitude calibration data but do not reflect the modern calcification temperature gradient from 2ºC ... -
A multi-decadal record of oceanographic changes of the past ~165 years (1850-2015 AD) from Northwest of Iceland
Simon, Margit Hildegard; Muschitiello, Francesco; Tisserand, Amandine Aline; Olsen, Are; Moros, Matthias; Perner, Kerstin; Bårdsnes, Siv Tone; Dokken, Trond Martin; Jansen, Eystein (Journal article; Peer reviewed, 2020)Extending oceanographic data beyond the instrumental period is highly needed to better characterize and understand multi-decadal to centennial natural ocean variability. Here, a stable isotope record at unprecedented ...