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Module Summary

Module Summary. Birgitte F. Nyland, Øyvind Lie, Trond Dokken Solfrid Hjøllo, Bogi Hansen and Svein Østerhus. NoClim II project meeting, Vestlia 3. - 5- September 2006. NoClim II ( N orwegian O cean Clim ate Project (Phase 2))

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Module Summary

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  1. Module Summary Birgitte F. Nyland, Øyvind Lie, Trond Dokken Solfrid Hjøllo, Bogi Hansen and Svein Østerhus NoClim II project meeting, Vestlia 3. - 5- September 2006

  2. NoClim II (Norwegian Ocean ClimateProject (Phase 2)) to significantly improve our understanding of processes which govern oceanic heat transport towards the Nordic Seas, and which provide the basis for atmospheric heat transport from the Atlantic sector towards northern Europe. • Module B : Analysis of abrupt changes in the past • to obtain paleo proxy data and relate them to quantitative physical oceanography Deliverables: • Calibrate proxy data collected from surface samples with present day hydrography
 • Identify each event in all the cores that will be subject for detailed investigation and chemical/sedimentological/biological analysis
 • Estimate the vertical temperature and salinity profiles through the main inflow and outflow areas between Iceland, the Faroes and Shetland during three major climate transitions
 • Quantitative reconstructions of the transport of surface and deep water through the channels connecting the Nordic Seas and the North Atlantic during climate transitions.

  3. Linked to following project: • Vamoc • (Variationsof the Atlantic Meridional Overturning Circulationduring rapid climate changes: calibration, modelling and palaeoceanographic observations) • the project will test the hypothesis that rapid climate transitions are always associated with changes in overturning rate in the Nordic Seas. This will be a major contribution to understanding what might happen with increased greenhouse gas levels and global warming

  4. Hydrographic setting 0,8 Sv ~3,5 Sv ~3,5 Sv B. Hansen et al., Progress in Oceanography 59 (2003) 443-474

  5. Overview of core positions: South North N02 HM03-133-14 N03 HM03-133-13 Water depth (m) N05 HM03-133-11 N07 HM03-133-10 N08 HM03-133-09 N09 HM03-133-08 N10 HM03-133-07 N11 HM03-133-06 N11 HM03-133-05 Latitude

  6. Proxy data versus CTD temperatures along the Faroe north transect HM03-133-14 N02 HM03-133-13 N03 HM03-133-11 N05 HM03-133-08 N09 HM03-133-06 N12 HM03-133-10 N07 HM03-133-07 N10 HM03-133-05 N13

  7. From Hansen et al., 2003

  8. Fauna counts on surface dwelling species Front indicators Warmer water indicator North South

  9. % of G. quinqueloba reflects variability in position of the front system. These two cores show similar variability down core. HM-10 HM-09 HM-08 % G. quinqueloba of total planktic forams N S 1925 PRESENT

  10. Response of the Atmosphere

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