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Research Interests

My research interests are the study of ocean biogeochemical cycles on
regional to global scales and on timescales from months to centuries. I am
particularly interested in investigating the cycles of carbon, oxygen and
nitrogen as well as those of their isotopes. The goal is to gain a better
understanding of the interactions between the physical, chemical and
biological processes that control the distributions of these climatically
important elements and how these change through time. My primary research
tools are the interpretation and analysis of observational data coupled
with the use of models ranging in complexity from simple box models to
global oceanic general circulation models. My research currently focuses
on four different aspects: (i) determining the oceanic uptake of
anthropogenic CO2, (ii) investigating the role of oceanic nitrogen fixation
and denitrification on the cycling of carbon within the ocean, (iii)
identifying and studying interannual to decadal variability in the marine
carbon cycle, and (iv) applying inverse modeling techniques to estimate
the exchange of heat and tracers across the air-sea interface.

Selected Publications

Sabine, C.S., M. Heimann, P. Artaxo, D. Bakker, C.-T. A. Chen, C. B. Field, N. Gruber, C. LeQuéré, R. G. Prinn, J. E. Richey, P. Romero-Lankao, J. Sathaye, R. Valentini. 2003. (in press) Current Status and Past Trends of the Carbon Cycle In: Toward CO2 Stabilization: Issues, Strategies, and Consequences (C. B. Field and M. R. Raupach, eds.), Island Press .

Gruber, N., P. Friedlingstein, C.~B. Field, R. Valentini, M. Heimann, J.~E. Richey, P. Romero-Lankao, D. Schulze, and C.-T.A. Chen. 2003. (in press) The vulnerability of the carbon cycle in the 21st century: An assessment of carbon-climate-human interactions In: Toward CO2 Stabilization: Issues, Strategies, and Consequences (C. B. Field and M. R. Raupach, eds.), Island Press .

Sarmiento, J.L., N. Gruber, M. Brzezinski, and J. Dunne. 2003. (in press) High Latitude Controls of the Global Nutricline and Low Latitude Biological Productivity Nature .

Gloor, M., N. Gruber, J. L. Sarmiento, R. A. Feely, C.L. Sabine and C. Roedenbeck. 2003. A first estimate of present and pre-industrial air-sea CO2 flux patterns based on ocean carbon measurements Geophysical Research Letters 30(1): .

Sabine, C.S., M. Heimann, P. Artaxo, D. Bakker, C.-T. A. Chen, C. B. Field, N. Gruber, C. LeQuéré, R. G. Prinn, J. E. Richey, P. Romero-Lankao, J. Sathaye, R. Valentini. 2003. (in press) Current Status and Past Trends of the Carbon Cycle In: Toward CO2 Stabilization: Issues, Strategies, and Consequences (C. B. Field and M. R. Raupach, eds.), Island Press .

Gruber, N., P. Friedlingstein, C.~B. Field, R. Valentini, M. Heimann, J.~E. Richey, P. Romero-Lankao, D. Schulze, and C.-T.A. Chen. 2003. (in press) The vulnerability of the carbon cycle in the 21st century: An assessment of carbon-climate-human interactions In: Toward CO2 Stabilization: Issues, Strategies, and Consequences (C. B. Field and M. R. Raupach, eds.), Island Press .

Sarmiento, J.L., N. Gruber, M. Brzezinski, and J. Dunne. 2003. (in press) High Latitude Controls of the Global Nutricline and Low Latitude Biological Productivity Nature .

Gloor, M., N. Gruber, J. L. Sarmiento, R. A. Feely, C.L. Sabine and C. Roedenbeck. 2003. A first estimate of present and pre-industrial air-sea CO2 flux patterns based on ocean carbon measurements Geophysical Research Letters .

Sabine, C.S., M. Heimann, P. Artaxo, D. Bakker, C.-T. A. Chen, C. B. Field, N. Gruber, C. LeQuéré, R. G. Prinn, J. E. Richey, P. Romero-Lankao, J. Sathaye, R. Valentini. 2003. (in press) Current Status and Past Trends of the Carbon Cycle In: Toward CO2 Stabilization: Issues, Strategies, and Consequences (C. B. Field and M. R. Raupach, eds.), Island Press .

Gruber, N., P. Friedlingstein, C.~B. Field, R. Valentini, M. Heimann, J.~E. Richey, P. Romero-Lankao, D. Schulze, and C.-T.A. Chen. 2003. (in press) The vulnerability of the carbon cycle in the 21st century: An assessment of carbon-climate-human interactions In: Toward CO2 Stabilization: Issues, Strategies, and Consequences (C. B. Field and M. R. Raupach, eds.), Island Press .