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NOClim Phase II 2003-2006

NOClim Phase II 2003-2006. The principal objective of the project is 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.

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NOClim Phase II 2003-2006

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  1. NOClim Phase II 2003-2006 The principal objective of the project is 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. Subgoals: • To elucidate how stable the Atlantic Meridional Overturning Circulation (AMOC) is to human induced greenhouse warming. • To identify whether rapid climate transitions in the past were associated with changes in the overturning rate in the Nordic Seas. • To investigate whether the balance of evidence (from observations, process understanding and models) indicates that abrupt changes are underway or likely to happen in the near future. Funding 2003-2006: 16 mill NOK from climate programme

  2. NOClim Phase II - three (four) modules • Module A: Theory and modelling of meridional oceanic heat transport • To elucidate how stable the Atlantic Meridional Overturning Circulation (AMOC) is to human induced greenhouse warming (Drange, Nøst, LaCasce, Melsom) • Module B: Analysis of abrupt changes in the past • To identify whether rapid climate transitions in the past were associated with changes in the overturning rate in the Nordic Seas.(Dokken/Østerhus)

  3. NOClim Phase II - three (four) modules • Module C: Analysis of modern variability and detection of significant changes To investigate whether the balance of evidence (from observations, process understanding and models) indicates that abrupt changes are underway or likely to happen in the near future. (Mauritzen/Loeng, Skagseth, Mork, ...) • Module D = ProClim (next page) SSG: Haugan, Marotzke, Drange, Nøst, Dokken, Østerhus, Mauritzen, Loeng + Eldevik, Ådlandsvik. Project manager: Peter M. Haugan Project office: Solfrid S. Hjøllo: Synthesis, external activitites.

  4. Polar Ocean Climate Processes (ProClim) 2003-2006 (= module D in NOClim) Overall objective: to quantify and understand climate processes in polar marginal seas, with emphasis on the western Barents Sea, Svalbard region and Greenland Sea, in order to improve our understanding of future regional and global climate and its predictability. Funding 2003-2006: 26 MNOK (from the Polar Climate Programme)

  5. Polar Ocean Climate Processes (ProClim) 2003-2006 Four work packages (WPs): • Deep mixing and sinking: Tor Eldevik, Ole Anders Nøst, Truls Johannessen, Yoshie Kasajima. • Water mass formation on shelves: Peter M. Haugan, W. Paul Budgell, Anne Sandvik, Alastair Jenkins, Lars-Henrik Smedsrud, Frank Nilsen, Ragnheid Skogseth (Post Doc). • Slope convection and overflows off shelves: Bjørn Ådlandsvik, Harald Loeng, Ilker Fer, Svein Østerhus, Tor Eldevik. • Integration by (basin scale) models, observations and theory (2005-2006 only): Helge Drange, Paul Budgell, Harald Loeng, NN (Post Doc IMR), Jan Even Øie Nilsen (Post Doc NERSC).

  6. Polar Ocean Climate Processes (ProClim)Work packages 1-4

  7. ProClim - subgoals (1) • to identify the parameters setting the mode of Greenland Sea convection (WP 1) • to understand dense water formation on polar shelves, and develop high resolution atmosphere, ice and ocean model tools which properly describe the processes (WP 2) • to measure major cold outflows from the shelf region and understand the mixing processes determining their fate. (WP 3)

  8. ProClim – subgoals (2) • to assess the variable contributions to deep mixing and sinking from shelves and in the deep ocean and understand the regional interaction between the processes. (WP 4) Some key activities: • Development of coupled fine scale atmosphere-ice-ocean polynya model (in WP2) • Microstructure measuring system (MSS) (in WP3) • Trawl-proof bottom-mounted ADCPs in Storfjordrenna and south of Bjørnøya, contribution to ASOF (in WP3)

  9. NOClim II will also: • Continue to strengthen cross-disciplinary communication within NOClim and between projects • Give scientific backing to sustained ocean climate monitoring efforts • Maintain and strengthen international connections (UK RAPID, ASOF, EU ITP opportunities, Nordic, US SEARCH and others)

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