M.Sc. Christopher Somes


PhD candidate at Research Unit Biogeochemical Modelling

Office:
Room: 20-211
Tel.: +49 431 600-4513
Fax: +49 431 600-4469
E-Mail: csomes(at)geomar.de

Address:
GEOMAR Helmholtz Centre for Ocean Research Kiel
Düsternbrooker Weg 20
24105 Kiel
Germany

Research Interests

  • Earth System Modeling
  • Climate Dynamics
  • Paleoclimate
  • Marine Ecosystem and Biogeochemical Cycles
  • Stable Nitrogen Isotopes

Education and Employment

  • 2009  Master of Science, Oceanography, College of Oceanic and Atmospheric Sciences, Oregon State University, with Master thesis "Nitrogen Isotopes in a Global Ocean Biogeochemical Model: Constraints on the Coupling Between Denitrification and Nitrogen Fixation"
  • 2006  Bachelor of Science, Physics, Oregon State University, with Bachelor thesis "Modeling instabilities of the global thermohaline circulation and its effect on the Pacific Ocean oxygen minimum zone"

Memberships

  • American Geophysical Union
  • Past Global Changes

Scholarships

  • 2006 - 2008  Laurel Scholarship Recipient, Oregon State University

Publications

Number of items: 30.

Articles in a Scientific Journal - peer-reviewed

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Landolfi, A., Somes, C. J., Koeve, W., Zamora, L. M. and Oschlies, A. (2017) Oceanic nitrogen cycling and N2 O flux perturbations in the Anthropocene. Global Biogeochemical Cycles, 31 (8). pp. 1236-1255. DOI 10.1002/2017GB005633.

Somes, C. J., Schmittner, A., Muglia, J. and Oschlies, A. (2017) A Three-Dimensional Model of the Marine Nitrogen Cycle during the Last Glacial Maximum Constrained by Sedimentary Isotopes. Frontiers in Marine Science, 4 . Art.Nr. 108. DOI 10.3389/fmars.2017.00108.

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Somes, C. J., Landolfi, A., Koeve, W. and Oschlies, A. (2016) Limited impact of atmospheric nitrogen deposition on marine productivity due to biogeochemical feedbacks in a global ocean model. Geophysical Research Letters, 43 (9). pp. 4500-4509. DOI 10.1002/2016GL068335.

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Young, J. W., Olson, R. J., Ménard, F., Kuhnert, P. M., Duffy, L. M., Allain, V., Logan, J. M., Lorrain, A., Somes, C. J., Graham, B., Goñi, N., Pethybridge, H., Simier, M., Potier, M., Romanov, E., Pagendam, D., Hannides, C. and Choy, C. A. (2015) Setting the stage for a global-scale trophic analysis of marine top predators: a multi-workshop review. Reviews in Fish Biology and Fisheries, 25 (1). pp. 261-272. DOI 10.1007/s11160-014-9368-4.

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Moore, R. M., Kienast, M., Fraser, M., Cullen, J. J., Deutsch, C., Dutkiewicz, S., Follows, M. J. and Somes, C. J. (2014) Extensive hydrogen supersaturations in the western South Atlantic Ocean suggest substantial underestimation of nitrogen fixation. Journal of Geophysical Research - Oceans, 119 (7). pp. 4340-4350. DOI 10.1002/2014JC010017.

Navarro, J., Coll, M., Somes, C. J. and Olson, R. J. (2013) Trophic niche of squids: Insights from isotopic data in marine systems worldwide. Deep-Sea Research Part II-Topical Studies in Oceanography, 95 . pp. 93-102. DOI 10.1016/j.dsr2.2013.01.031.

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Somes, C. J., Oschlies, A. and Schmittner, A. (2013) Isotopic constraints on the pre-industrial oceanic nitrogen budget. Biogeosciences (BG), 10 (9). pp. 5889-5910. DOI 10.5194/bg-10-5889-2013.

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Galbraith, E. D., Kienast, M., Galbraith, E. D., Kienast, M., Albuquerque, A. L., Altabet, M. A., Batista, F., Bianchi, D., Calvert, S. E., Contreras, S., Crosta, X., De Pol-Holz, R., Dubois, N., Etourneau, J., Francois, R., Hsu, T. C., Ivanochko, T., Jaccard, S. L., Kao, S. J., Kiefer, T., Kienast, S., Lehmann, M. F., Martinez, P., McCarthy, M., Meckler, A. N., Mix, A., Möbius, J., Pedersen, T. F., Pichevin, L., Quan, T. M., Robinson, R. S., Ryabenko, E., Schmittner-Boesch, A., Schneider, R., Schneider-Mor, A., Shigemitsu, M., Sinclair, D., Somes, C. J., Studer, A. S., Tesdal, J. E., Thunell, R. and Terence Yang, J. Y. (2013) The acceleration of oceanic denitrification during deglacial warming. Nature Geoscience, 6 (7). pp. 579-584. DOI 10.1038/ngeo1832.

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Robinson, R. S., Kienast, M., Luiza Albuquerque, A., Altabet, M., Contreras, S., De Pol Holz, R., Dubois, N., Francois, R., Galbraith, E., Hsu, T. C., Ivanochko, T., Jaccard, S., Kao, S. J., Kiefer, T., Kienast, S., Lehmann, M., Martinez, P., McCarthy, M., Möbius, J., Pedersen, T., Quan, T. M., Ryabenko, E., Schmittner, A., Schneider, R., Schneider-Mor, A., Shigemitsu, M., Sinclair, D., Somes, C. J., Studer, A., Thunell, R. and Yang, J. Y. (2012) A review of nitrogen isotopic alteration in marine sediments. Paleoceanography, 27 (4). PA4203. DOI 10.1029/2012PA002321.

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Somes, C. J., Schmittner, A. and Altabet, M. A. (2010) Nitrogen isotope simulations show the importance of atmospheric iron deposition for nitrogen fixation across the Pacific Ocean. Geophysical Research Letters, 37 (23). L23605. DOI 10.1029/2010GL044537.

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Somes, C. J., Schmittner, A., Galbraith, E. D., Lehmann, M. F., Altabet, M. A., Montoya, J. P., Letelier, R. M., Mix, A. C., Bourbonnais, A. and Eby, M. (2010) Simulating the global distribution of nitrogen isotopes in the ocean. Global Biogeochemical Cycles, 24 (4). DOI 10.1029/2009gb003767.


Somes, C. J., Schmittner, A., Galbraith, E. D., Lehmann, M. F., Altabet, M. A., Montoya, J. P., Letelier, R. M., Mix, A. C., Bourbonnais, A. and Eby, M. (2010) Simulating the global distribution of nitrogen isotopes in the ocean. Global Biogeochemical Cycles, 24 (4). n/a-n/a. DOI 10.1029/2009gb003767.

Presentations


Oschlies, A., Koeve, W., Landolfi, A., Getzlaff, J., Somes, C. J. and Kriest, I. (2016) Patterns of deoxygenation – natural and anthropogenic drivers. [Talk] In: Ocean Sciences Meeting 2016. , 21.-26.02.2016, New Orleans, USA .


Somes, C. J., Landolfi, A., Koeve, W. and Oschlies, A. (2016) Ocean biogeochemical feedbacks limit the impact of atmospheric nitrogen depositions on marine productivity. [Talk] In: Ocean Sciences Meeting 2016. , 21.-26.02.2016, New Orleans, USA .


Oschlies, A., Landolfi, A., Kriest, I., Somes, C. J., Dietze, H. and Koeve, W. (2015) A modeler's perspective on environmental controls of N2 fixation. [Talk] In: ASLO Aquatic Sciences Meeting 2015. , 22.-27.02.2015, Granada, Spain .


Oschlies, A., Landolfi, A., Rabouille, S., Koeve, W., Pahlow, M. and Somes, C. J. (2015) Phosphorus Controls on Marine N2 Fixation. [Talk] In: Goldschmidt Conference 2015. , 16.-21.08.2015, Prague, Czech Republic. .


Somes, C. J., Oschlies, A. and Schmittner-Boesch, A. (2012) Constraining rates of N2 fixation and denitrification in the ocean using NO3:PO4 ratios. [Talk] In: Ocean Sciences Meeting 2012. , 20.-24.02.2012, Salt Lake City, USA .


Somes, C. J. (2011) Balancing the fixed nitrogen budget in the global ocean. [Talk] In: 43th International Liège Colloquium on Ocean Dynamics Tracers of physical and biogeochemical processes, past changes and ongoing anthropogenic impacts. , 02.-06.05.2011, Liege, Belgium .


Somes, C. J. (2011) Using nitrogen isotopes and xsP to constrain the fixed-N budget in the past and present ocean. [Talk] In: NICOPP Meeting: Sedimentary d15N - data synthesis, analysis and model­ing. , 08.-10.07.2011, Halifax, Canada .


Somes, C. J. (2011) Using nitrogen isotopes and xsP to constrain the fixed-N budget in the past and present ocean. [Talk] In: Institute of Technology Zurich Seminar. , 18.07.2011, Zurich, Switzerland .


Somes, C. J. (2010) Modeling the distribution of nitrogen isotopes in the global ocean. [Talk] In: FB2 Seminar, Leibniz-Institute of Marine Sciences (IFM-GEOMAR). , 29.11.2010, Kiel, Germany .

Conference posters


Landolfi, A., Somes, C. J., Zamora, L., Koeve, W. and Oschlies, A. (2015) Marine N inventory sensitivity to atmospheric N deposition. [Poster] In: EGU General Assembly 2015. , 12.–17.04.2015 , Vienna, Austria . Geophysical Research Abstracts, 17 (EGU2015-12648).


Somes, C. J., Schmittner-Boesch, A. and Oschlies, A. (2013) Isotopic constrains on the fixed nitrogen budget in the modern and glacial ocean. [Poster] In: International Conference of Paleoceanography. , 01.-06.09.2013, Sitges, Spain .


Somes, C. J., Oschlies, A. and Schmittner-Boesch, A. (2012) Isotopic constraints on the pre-industrial fixed nitrogen budget. [Poster] In: AGU Fall Meeting 2012. , 03.-07.12.2012, San Francisco, USA .


Somes, C. J., Schmittner-Boesch, A. and Oschlies, A. (2012) Isotopic constrains on the fixed nitrogen budget in the modern and glacial ocean. [Poster] In: International Conference on Earth System Modelling. , 17.-21.09.2012, Hamburg, Germany .


Somes, C. J. (2011) Changes in the nitrogen cycle in the modern and glacial ocean. [Poster] In: XVIII INQUA-Congress Quaternary sciences – the view from the mountains : XVIII International Union for Quaternary Research (INQUA)-Congress. , 21.-27.07.2011, Bern, Switzerland .

Theses - not published by a publisher

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Somes, C. J. (2013) Nitrogen Isotopes in the Global Ocean. (Doctoral thesis/PhD), Christian-Albrechts-Universität Kiel, Kiel, Germany, 141 pp.

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Somes, C. J. (2009) Nitrogen isotopes in a global ocean biogeochemical model : constraints on the coupling between denitrification and nitrogen fixation. (Master thesis), Oregon State University, Corvallis, Oregon, USA, 72 pp.

This list was generated on Sat Oct 21 07:46:15 2017 CEST.