1 / 14

6 th Green Ocean Workshop Villefranche sur mer Spring 2007

6 th Green Ocean Workshop Villefranche sur mer Spring 2007. Questions: what are the important feedbacks between marine ecosystems and climate on timescales of 1 yr to 100 kyr? are marine ecosystems stable?

brad
Download Presentation

6 th Green Ocean Workshop Villefranche sur mer Spring 2007

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. 6th Green Ocean WorkshopVillefranche sur merSpring 2007

  2. Questions: • what are the important feedbacks between marine ecosystems and climate on timescales of 1 yr to 100 kyr? • are marine ecosystems stable? • are there sensitive regions that we should closely monitor or potentially dangerous climate regimes or human activities that we should carefully avoid?

  3. Products of 2006 workshop: • EOS workshop report on Modelling interactions between marine ecosystems and climate • Definition of 2 priorities:(1) develop a scheme for model evaluation(2) gather observations on rates and biomass

  4. 2007 workshop:40 participants (18 new, 22 returning)7 phd students

  5. Respiration 34 PgC/y monera pico-heterotrophs pico-autotrophs Primary Production 45 PgC/y N2-fixers phyto-plankton calcifiers DMSp-producers mixed silicifiers Export 11 PgC/y proto zoo-plankton meso macro planned developments of a Dynamic Green Ocean Model

  6. data available for parameterisation and evaluation (2006)

  7. data available for parameterisation and evaluation (2007) (proposal under review with Euroceans)

  8. 2007: warming of the climate system is unequivocal (IPCC)

  9. temperature change (ºC) sea level change (cm) Rahmstorf et al. Science CO2 emissions (GtC/y) Raupach et al. PNAS 1970 1990 2005 time (y)

  10. possible future observed recent past biological changes 1970 1990 2005 time (y) identify potentially dangerous feedbacks due to recent (or projected) climate change

  11. Products of 2007 workshop: • review progress and revise priorities • define steps to move forward on priorities • develop a scheme for model evaluation AMERM effort (led by Icarus Alan) model intercomparison with Yasuhiro Yamanaka + • (2) gather observations on rates and biomass remineralizers effort (led by Erik Buitenhuis) • primary producers effort (led by Shubha Sathyendranath) • explore non-linearities in marine ecosystems • (led by Dieter Wolf-Gladrow)

  12. time evolution of model developments

  13. ... 1991 1996 1999 2001 2002 2003 2004 2005 2006 2007 2010 ... June: 1st workshop October, 2nd workshop October, 3rd workshop October, 4th workshop paper in Global Change biology April, 5th workshop Spring, 6th workshop } initial struggle period

More Related