1 / 27

IMBER within IGBP II

IMBER within IGBP II. P. Monfray Prepared for IGST, 14-16 November 2005, Exeter. OCEAN IGBP II. http://www.imber.info IPO in Brest, open October 2005. Goal

snow
Download Presentation

IMBER within IGBP II

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. IMBER within IGBP II P. Monfray Prepared for IGST, 14-16 November 2005, Exeter

  2. OCEAN IGBP II

  3. http://www.imber.info IPO in Brest, open October 2005

  4. Goal “to investigate the sensitivity of marine biogeochemical cycles and ecosystems to global change, on time scales ranging from years to decades”

  5. Theme 1. Interactions between biogeochemical cycles and marine food webs. What are the key marine biogeochemical cycles, ecosystem processes, and their interactions, that will be impacted by global Change? • Transformation of organic matter in marine food webs • Transfers of matter across ocean interfaces • End-to-end food webs and material flows

  6. Theme 2. Sensitivity to Global Change What are the responses of key marine biogeochemical cycles, ecosystems and their interactions with global change? • Impacts of climate-induced changes through physical forcing and variability. • Effects of increasing anthropogenic CO2 and changing pH on marine biogeochemical cycles and their interactions. • Effects of changing supplies of macro- and micronutrients • Impacts of harvestingon end-to-end food webs and biogeochemical cycles.

  7. Theme 3. Feedbacks to the Earth System What is the role of ocean biogeochemistry and ecosystems in regulating climate? • Oceanic storage of anthropogenic CO2 • Ecosystem feedback on ocean physics and climate

  8. Theme 4: Responses of Society • What are the relationships between marine biogeochemical cycles, ecosystems, and the human system?

  9. IMBER National Activities • Canada, Chile, Germany, France, India, Japan, New Zealand, Netherlands, South Africa, UK, USA, Finland • China has newly funded five year programme • Euro Oceans, CarbOcean • Regional Activities • ICCED, Southern Ocean • OECOS, SubArctic Pacific

  10. Planned Activities • 2005 • Carbon Working Group Meeting, joint IMBER/SOLAS • End to end food webs Working Group Meeting, joint IMBER/GLOBEC • Executive meeting jointly with GLOBEC Executive Committee • 2006 • Human Dimensions Working Group Meeting • Continental Margins OSC • 2007 • Theme 2 Issue 2 (Nutrients) OSC • Theme 2 Issue 1 (Physical drivers) OSC • ICCED OSC • 2008 • IMBER Open Science Conference

  11. GODAE-interest/need for IMBER • Ocean state: • Reanalysis starting from availability altimetry data (1992) for climate studies • Nowcast and forecast analysis for campaign optimization • Region of interest: • Basin scale at high resolution both for vertical and horizontal • Towards coastal areas for cross slope exchanges • Assimilation issues: • methods that limit spurious diapycnal fluxes below the mixed layer by advanced assimilation schemes of physical observations • integrate gradually biogeochemical observations to constrain jointly physics and biogeochemistry • Observations issues: • Include biogeochemical sensors (O2, pCO2, nutrients, optics, ...) within ARGO and GLIDER. • Include biogeochemical modules within GODAE system • Realtime or forecast of biogeochemical state for evaluation and campaign optimization • Online coupling for bio-feedbacks on physics

  12. Towards real-time integration of marine biology in operational oceanography Some issues rise by the MERCATOR/BIONUTS group P. Gaspar, J. Stum (CLS, Toulouse) E. Greiner, L.Nouel, E. Dombrowsky (MERCATOR OCEAN, Toulouse) A. El Moussaoui, P. Monfray (LEGOS, Toulouse) O. Aumont, M. Lévy, A.S. Kremeur(LOCEAN, Brest & Paris) S. Alvain , L.Bopp, C. Moulin, J. Orr (LSCE, Gif) L. Berline, J.M. Brankart, P. Brasseur, Y. Ourmières, J.Verron (LEGI, Grenoble)

  13. July 1998 Chlorophyll using MERCATOR SeaWIFS 98-02 Add SSH assimilation 2° to 1/3° resolution Add N regeneration Add Fe from margins SeaWIFS P3ZD LOBSTER PISCES

  14. SEEK assimilation with IAU(Incremental Analysis Update) July 1998 P3ZD/NATL3 SeaWiFS w/o assimilation with SLA and SST ass. + IAU Berline et al., 2004

  15. Preliminary results using MERCATOR re-analysis (MERA-11) 1992 1993 1994 1995 1996 1997 in 2006: realtime demo prototype with evaluation by ocean color beyond: global 1/4°, atl 1/15° 1998 1999 2001 2000

  16. Biogeochemistry:3 challenges for GODAE • 1- Do assimilation schemes of physical variables respect constrains for marine biology ? - Actually NO • 2- Do marine biogeochemical first guesses are enough robust ? - NO but quality increased • 3- How assimilate information from sea color to jointly improve physics and biology ? - Require to solve first 1 & 2

  17. Physical (Re)Analysis Offline Biogeochemistry Biogeochemical Observations Diagnostics Biogeochemical Codes Assimilation Schemes Products: PP, fCO2, O2, turbidity … Users: Research, Carbon/Kyoto, Marine Resources Towards nowcast & hindcat Towards a “virtuous loop” ?

  18. A joint workshop on “Biogeochemistry issues within operational oceanography” ? • Gain benefit on existing experiences made by teams associated with GODAE systems* • Define a joint Vision for future activities • Schedule in 2006/07 ? • Joint with IMBER OSC on physical drivers ? • Next GODAE Symposium ? * MERCATOR/BIONUTS, NCOF/HADOCC-ERSEM, BLUElink, ECCO, HYCOM, …

  19. IMBER IPO • Brest, France • Funded three years by CNRS, IRD, University of Brittany, Region of Brittany • Official opening October 25th, 2005 • Executive Officer is Sylvie Roy • Deputy Executive Officer Sophie Beauvais • Administrative Assistant is Elena Fily

  20. IMBER Science Plan Vision “to provide a comprehensive understanding of and accurate predictive capacity for, ocean responses to accelerating global change and the consequent effects on the Earth System and human society”

  21. Cross-slope exchange issue

More Related