• norsk
    • English
  • English 
    • norsk
    • English
  • Login
View Item 
  •   Home
  • Faculty of Mathematics and Natural Sciences
  • Department of Earth Science
  • Department of Earth Science
  • View Item
  •   Home
  • Faculty of Mathematics and Natural Sciences
  • Department of Earth Science
  • Department of Earth Science
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Paleoceanography and paleoclimate in the Nordic Seas and the northern North Atlantic during the last 22 000 years

Meland, Marius Yddal
Doctoral thesis
Thumbnail
View/Open
Main Thesis (1.493Mb)
Paper I (927.9Kb)
Paper III (1.154Mb)
Paper IV (2.921Mb)
URI
https://hdl.handle.net/1956/2010
Date
2006-09-01
Metadata
Show full item record
Collections
  • Department of Earth Science [858]
Abstract
The paleoceanography of the Nordic Seas and the northern North Atlantic during glacial and deglacial times was studied, using oxygen isotopes and Mg/Ca of foraminifera. The specific objectives are listed below: 1) Sea surface temperatures (SST) during the Last Glacial Maximum (LGM, ∼20 000 years ago) were reconstructed, using oxygen isotopes of the planktonic foraminifer Neogloboquadrina pachyderma (sinistral). 2) The LGM climate (air temperatures, precipitation/moisture, air pressure, wind systems) was simulated, using the SSTs produced under Objective 1 as boundary conditions. 3) Mg/Ca ratios of N. pachyderma (sin.) were tested to see if they could be used to make surface/subsurface temperature estimates in the Nordic Seas for previous times. 4) Water mass exchanges between the North Atlantic and the Nordic Seas through the period 22 000 - 6000 years ago were studied. This period covers the LGM, the last deglaciation and the recent interglacial (Holocene). Benthic oxygen isotopes were used as the main proxy, supported by benthic carbon isotopes and planktonic oxygen isotopes.
Has parts
Paper I: Quaternary Science Reviews 24, Meland, M. Y; Jansen, E.; Elderfield, H., Constraints on SST estimates for the northern North Atlantic/Nordic Seas during the LGM, pp. 835-852. Copyright 2005 Elsevier. The published version is available at: http://dx.doi.org/10.1016/j.quascirev.2004.05.011

Paper II: Climate Dynamics 26, Byrkjedal Ø.; Kvamstø, N. G.; Meland, M. Y.; Jansen E.; Sensitivity of last glacial maximum climate to sea ice conditions in the Nordic Seas, pp. 473-487. Copyright 2006 Springer Verlag. Fulltext not available due to publisher restrictions. The published version is available at: http://dx.doi.org/10.1007/s00382-005-0096-2

Paper III: Meland, M. Y.; Jansen, E.; Elderfield, H.; Dokken, T. M.; Olsen, A.; Bellerby, R. G. J., Mg/Ca ratios in the planktonic foraminifer Neogloboquadrina pachyderma (sinistral) in the northern North Atlantic/Nordic Seas, Geochemistry Geophysics Geosystems 7: Q06P14, 2006. Copyright 2006 The American Geophysical Union. Reproduced by permission of American Geophysical Union. The published version is available at: http://dx.doi.org/10.1029/2005GC001078

Paper VI: Meland, M. Y.; Dokken, T. M.; Jansen, E.; Hevrøy, K., Water mass properties and exchange between the Nordic Seas and the northern North Atlantic during the period 22-6 ka: benthic oxygen isotope evidence. Pre-print.
Publisher
The University of Bergen

Contact Us | Send Feedback

Privacy policy
DSpace software copyright © 2002-2019  DuraSpace

Service from  Unit
 

 

Browse

ArchiveCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsDocument TypesJournalsThis CollectionBy Issue DateAuthorsTitlesSubjectsDocument TypesJournals

My Account

Login

Statistics

View Usage Statistics

Contact Us | Send Feedback

Privacy policy
DSpace software copyright © 2002-2019  DuraSpace

Service from  Unit