Ocean in the Earth System: Waves by Christian Klepp

Ocean Biogeochemistry

Group leader: Tatiana Ilyina 

 

Mission

The principle goal of the ocean biogeochemistry group is to better understand and quantify the role of marine biogeochemistry within the climate system. Within this framework, the group develops and applies global numerical models of mainly marine biogeochemistry, but also ocean physics. The model zoo consists of a hierarchy of model components, including biogeochemical models of the euphotic zone, the deep ocean, and the bioturbated sediments, primitive equation ocean general circulation models, and tracer transport models.  Coupled atmosphere-ocean GCMs are also applied. The time scales of the investigated processes range from days to millions of years.

 

Topics of particular interest are 

  • the quantitative description of oceanic biogeochemical cycles with special emphasis on the carbon and nitrogen cycle (including the future evolution of oxygen minimum zones)
  • impact of ocean physics on biogeochemical cycles
  • the oceanic uptake kinetics for fossil fuel CO2 and feedback with climate change
  • the spreading of transient tracers such as chlorofluoromethanes (CFCs) and radio carbon
  • interactions of the marine carbon cycle with other components of the Earth System
  • ocean acidification and the future evolution of the biological carbon pump
  • the reconstruction of past climatic states and the investigation of the stability of the thermohaline circulation
  • impact of volcanic eruptions on the carbon cycle
  • the further development of the ocean model MPIOM/HAMOCC as part of the MPIM Earth System Model MPI-ESM


Current and recent research activities in national and international projects

National

BMBF

  • Verbundprojekt North Atlantic
  • Balancing Global Carbon Exchanges (Ocean/Atmosphere/Vegetation)
  • SFB 512:"Tiefdruckgebiete und Klima des Nordatlantiks"("Cyclones and the North Atlantic Climate System")
  • SOPRAN: Surface Ocean Lower Atmosphere Study
  • CARIMA: Natürliche vs. anthropogene Steuerungsfaktoren spätquartärer Monsunvariabilität  in  Zentralasien aufgezeichnet in marinen Archiven

CLISAP

  • Model and data based estimation of climate induced changes of the role of the ocean in the global nitrogen cycle with special emphasis on the Arabian Sea
  • Impact of large-magnitude volcanic eruptions on ocean fertilization and the global CO2 budget: observation-driven model simulations

International (EU FP6/FP7) 

  • CARBOOCEAN Reducing uncertainties in estimates of oceanic CO2 uptake
  • EPOCA European Project on OCean Acidification
  • COMBINE Comprehensive Modelling of the Earth System for Better Climate Prediction and Projection
  • CARBOCHANGE Changes in carbon uptake and emissions by oceans in a changing climate

Group members

name main field of work e-mail phone room
Tatiana Ilyina (group leader) Ocean biogeochemistry undefinedtatiana.ilyina@zmaw.de +49 40 41173-164 218
Katharina D. Six Seasonal cycles of O2 and CO2, marine biology, DMS, nitrogen cycle undefinedkatharina.six@zmaw.de +49 40 41173-415 231
Joachim Segschneider Oceanic uptake of anthropogenic CO2, Earth System feedbacks between the marine carbon cycle and climate, remote input of dust and nutrients undefinedjoachim.segschneider@zmaw.de +49 40 41173-196 229
Mathias Heinze Ocean biogeochemistry during the PETM undefinedmathias.heinze@zmaw.de +49 40 41173-136 207
Ismael Núñez-Riboni Air-sea exchange of CO2, data analysis undefinedismael.nunez-riboni@zmaw.de +49 40 41173-154 211
Irene Stemmler Oceanic emissions of climate-relevant organic halogens undefinedirene.stemmler@zmaw.de +49-40-41173-159 204
Ernst Maier-Reimer General model development undefinedernst.maier-reimer@zmaw.de +49 40 41173-233 231
Rosina Grimm Biogeochemistry of the Eastern Mediterranean undefinedrosina.grimm@zmaw.de +49 40 41173-193 117
Matthias Gröger North Atlantic/Arctic shelf seas undefinedmatthias.groeger@zmaw.de +49 40 41173-461 126

External co-workers and former group members

name address e-mail phone fax
Olivier Aumont IRD, Brest, France undefinedolivier.aumont@ird.fr (+33) (0)2-98-22-45-06  
Christoph Heinze Bjerknes Centre for Climate Research
Allegaten 70,
N-5007 Bergen, Norway 		undefinedheinze@gfi.uib.no +47(55) 589844 +47(55) 589883
Joachim Dippner Institut für Ostseeforschung Warnemünde
Seestr. 15
D-18119 Rostock		 undefinedjoachim.dippner@iow-warnemuende.de +49(381) 5197-229  
Arne M.E. Winguth University of Arlington, Texas
Department of Earth and Environmental Sciences
701 South Nedderman Drive,
Arlington, Texas 76019
USA 		undefinedawinguth@uta.edu    
Iris Kriest Leibniz Institut für Meereswissenschaften IFM-GEOMAR, Kiel undefinedikriest@ifm-geomar.de
    

Publications

2010

  • Roy, T., L. Bopp, M. Gehlen, B. Schneider, P. Cadule, T.L. Fröhlicher, J. Segschneider, J. Tjiputra, C. Heinze, and F. Joos, 2010. Regional impacts of climate change and atmospheric CO2 on future ocean carbon uptake: A multi-model linear feedback analysis. J. Climate, accepted.
  • J. H. Jungclaus et al. (24, incl. K. Six and J. Segschneider), 2010. Climate and carbon cycle variability over the last millennium. Climate of the Past, 6, 723 - 737.
  • Brovkin, V. S. Lorenz, J.H. Jungclaus, T. Raddatz, C. Reick, C. Timmreck, J. Segschneider, K. Six, 2010. Sensitivity of a coupled climate-carbon cycle model to large volcanic eruptions during the last millennium. Tellus B, 62 (5), 674-681.
  • Assmann, K., M. Bentsen, J. Segschneider, and C. Heinze, 2010. An isopycnic carbon cycle model. Geophysical Model Development, 3, 143-167.
  • Le Clainche, Y. et al. [incl. Katharina Six], 2010, A first appraisal of prognostic ocean DMS models and prospects for their use in climate models, Global Biogeochem. Cycles, 24, GB3021, doi:10.1029/2009GB003721.

 

 

2009

  • Guglielmo, F., G. Lammel, and E. Maier-Reimer, 2009. Global environmental cycling of gamma-HCH and DDT in the 1980s - A study using a coupled atmosphere and ocean general circulation model. Chemosphere, 76, 1509-1517.
  • Heinze, C., I. Kriest, and E. Maier-Reimer, 2009. Age offsets between different biogenic and lithogenic components of sediment cores revealed by numerical modelling. Paleoceanography, 24, PA4214, doi:10.1029/2008PA001662.
  • Ilyina, T., R.E. Zeebe, E. Maier-Reimer, C. Heinze, 2009. Early detection of ocean acidification effects on marine calcification. Global Biogeochemical Cycles, 23, GB1008, doi:10.1029/2008GB003278
  • Rodgers, K.B. et al. [21, including E. Maier-Reimer], 2009. Using altimetry to help explain patchy changes in hydrographic carbon measurements. J. Geophys. Res., 114, C09013, doi:10.1029/2008JC005183.
  • Steinacher, M., F. Joos, T.L. Froehlicher, L. Bopp, P. Cadule, S.C. Doney, M. Gehlen, B. Schneider, and J. Segschneider, 2009. Projected 21st century productivity: a multi model analysis. Biogeosciences Dissc., 6, 7933-7981.

2008

  • Vizcaino,M., U. Mikolajewicz, M. Gröger, E. Maier-Reimer, G. Schurgers, and A.M.E. Winguth, 2008: Long-term ice sheet-climate interactions under anthropogenic greenhouse forcing simulated with a complex Earth System Model. Clim.Dyn. doi:10.1007/s00382-008-0369-7
  • Schneider, B., L. Bopp, M. Gehlen, J. Segschneider, T.L. Froelicher, P. Cadule, P. Friedlingstein, S.C. Doney, M.J. Behrenfeld, and F. Joos, 2008: Climate-induced interannual variability of marine export production in three global coupled carbon cycle models. Biogeosciences, 5, 597-614.
  • Bernard, C., H. Duerr, C. Heinze, J. Segschneider, and E. Maier Reimer, 2008. Contribution of riverine silicon to the silicon biogeochemistry of the global ocean. Biogeosciences Dissc., 6, 1091-1119.
  • Crueger, T., Roeckner, E., Raddatz, T., Schnur, R., and Wetzel, P. 2008: Ocean dynamics determine the response of oceanic CO2 uptake to climate change. Clim Dyn. 31, 151 - 168.
  • Schurgers, G., U. Mikolajewicz, M. Groeger, E. Maier-Reimer, M. Vizcaino, and A. Winguth: Long-term effects of biophysical and biogeochemical interactions between terrestrial biosphere and climate under anthropogenic climate change. Global and Planetary Change, 64, 26-37.

2007

  • Kloster,  S., K.D. Six, J. Feichter, E. Maier-Reimer, E. Rockner, P. Wetzel, P. Stier, and M. Esch, 2007. Response of dimethylsulfide(DMS) in the ocean and atmosphere to global warming. J. Geophys. Res., 112, G03005, doi:10.1029/2006JG000224.
  • Gröger M., E. Maier-Reimer, U. Mikolajewicz, G. Schurgers, M. Vizcaíno, A. Winguth, 2007. Changes in the hydrological cycle, ocean circulation, and carbon/nutrient cycling during the last interglacial and glacial transition, Paleoceanography, 22, PA4205, doi:10.1029/2006PA001375.
  • Najjar, R.G. et al., 2007, Impact of circulation on export production, dissolved organic matter, and dissolved oxygen in the ocean: Results from Phase II of the Ocean Carbon-cycle Model Intercomparison Project (OCMIP-2), Global Biogeochem. Cycles, 21, GB3007, doi:10.1029/2006GB002857

2006

  • Six,K.D., and E. Maier-Reimer, 2006. What controls the oceanic dimethylsulfide (DMS) cycle? A modeling approach. Global Biogeochem. Cycles 20, GB4011, doi:10.1029/2005GB002674H.
  • Howard, M.T., A.M.E. Winguth, C. Klaas, and E. Maier-Reimer, 2006. Sensitivity of ocean carbon tracer distributions to particulate organic flux parameterizations. Global Biogeochemical Cycles,  20(3):B3011.
  • Wetzel P., E. Maier-Reimer, M. Botzet, J. Jungclaus, N. Keenlyside, M. Latif, 2006. Effects of ocean biology on the penetrative radiation in a coupled climate model. Journal of Climate. 19(16):3973-3987.
  • Rixen T., V. Ittekkot, B. Herunadi, P. Wetzel, E. Maier-Reimer, and B. Gaye-Haake. ENSO-driven carbon see saw in the Indo-Pacific. Geophysical Research Letters. 33(7):7606.
  • Kloster S., J. Feichter, E. Maier-Reimer, K.D. Six, P. Stier, and P. Wetzel, 2006. DMS cycle in the marine ocean-atmosphere system - a global model study. Biogeosciences. 3(1):29-51.
  • Schurgers, G., U. Mikolajewicz, M. Gröger, E. Maier-Reimer, M. Vizcaino, and A. Winguth, 2006. Dynamics of the terrestrial biosphere, climate and atmospheric CO2 concentration during interglacials: a comparison between Eemian and Holocene. Clim. Past, 2, 205 - 220.
  • Mikolajewicz U., M. Gröger, E. Maier-Reimer, G. Schurgers, M. Vizcaíno, and A. M. E. Winguth: Long-term effects of anthropogenic CO$_2$ emissions simulated with a complex earth system model. Clim. Dyn.10.1007/s00382-006-9294-y
  • Rehdanz, K., Tol R.S.J., and Wetzel, P. 2006. Ocean carbon sinks and international climate policy. Energy Policy, 34, 3516-3526.
  • McKinley G.A., et al. (including P. Wetzel) 2006. North Pacific carbon cycle response to climate variability on seasonal to decadal timescales. Journal of Geophysical Research 111, C07S06, doi:10.1029/2005JC003173.

2005

  • Zeng, N., A. Mariotti, and P. Wetzel, 2005: Terrestrial mechanisms of interannual CO2 variability, Global Biogeochem. Cycles 19, GB1016, doi:10.1029/2004GB002273.
  • Winguth, A. and E. Maier-Reimer 2005: Causes of the marine productivity and oxygen changes associated with the Permian-Triassic boundary: A reevaluation with ocean general circulation models. Marine Geology 217,283-304.
  • Wetzel,P., A.Winguth and E. Maier-Reimer, 2005: Sea-to-air flux from 1948 to 2003 - a model study. Glob. Biogeoch. Cycles, Vol.19,GB2005, doi:10.1029/2004GB002339,2005.
  • Orr,J.C. et al.(26),2005: Anthropogenic ocean acidification over the twenty-first century and its impact on calcifying organisms. Nature 437, 681-686.
  • Winguth, A.,U.Mikolajewicz, M.Groeger, E.Maier-Reimer, G.Schurgers, and M.Vizcaino, 2005: Centennial-scale interactions between the carbon cycle and anthropogenic climate change using a dynamic Earth system model. Geophysical Research Letters 32, L23714 doi:10.1029/2005GL023681.

2004

  • Dutay, J.-C., P. Jean-Baptiste, J.-M. Campin, A. Ishida, E. Maier-Reimer, R.J. Matear, A. Mouchet, I.J. Totterdell, Y. Yamanaka, K. Rodgers, G. Madec, J.C. Orr. Evaluation of OCMIP-2 ocean models' deep circulation with mantle helium-3, J. Mar. Systems, 48/1-4, 15-36
  • Doney, S. C. et al.(27) Evaluating global ocean carbon models: The importance of realistic physics. Global Biogeochem. Cycles 18, GB3017.
  • Vivier,F., Maier-Reimer,E., and Tylor R.:2004 Simulations of magnetic fields generated by the Antarctic Circumpolar Current at satellite altitude: can geomagnetic measurements be used to monitor the flow? Geoph. Res. Let. 31,L10306.
  • Hoffmann G.,Cuntz M.,Weber C., Ciais P., Friedlinstein P., Heimann M., Jouzel J., Kaduk J., Maier-Reimer E., Seibt U., Six K., 2004: A model of the Earth's Dole effect. Global Biogeochemical Cycles 18(1) GB1008.
  • Matsumoto, K. et al.(30 authors), 2004: Evaluation of ocean carbon cycle models with data-based metrics. GRL 31, L07303.