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- Assistant Professor
- Department of Meteorology
The Pennsylvania State University
503 Walker Building
University Park, PA 16802-5013
- Email: najjar@ems.psu.edu
Vitae
Education
The Cooper Union for the Advancement of Art and Science B.E. 1985 Mechanical
Engineering
Princeton University M.A. 1987 Geophysical Fluid Dynamics
Princeton University Ph.D. 1990 Atmospheric and Oceanic Sciences
Professional Experience
1985-89 Graduate Research Assistant and NASA Graduate Student Research, Program
in Atmospheric and Oceanic Studies, Princeton University
1989-90 Research Associate, Program in Atmospheric and Oceanic Studies, Princeton
University
1990 Teaching Assistant, Department of Oceanography, University of Washington
1990-93 Post-Doctoral Fellow, Advanced Study Program and Climate System Modeling
Program, National Center for Atmospheric Research
1993-present Assistant Professor, Department of Meteorology; Associate of the Earth System
Science Center; The Pennsylvania State University
Research Focus
Marine biogeochemical cycles, ecosystem modeling, anoxia in coastal waters,
air-sea gas exchange, effect of global change on marine biochemical cycles.
 | Selected Publications
 | Najjar, R. G., D. J. Erickson III, and S. Madronich. 1995. Modeling the air-sea
fluxes of gases formed from the decomposition of dissolved organic matter: carbonyl
sulfide and carbon monoxide. In: The Role of Non-Living Organic Matter in the Earth’s
Carbon Cycle, Zepp, R. and C. Sonntag (eds.), 106-132, John Wiley, New York. |
| Najjar, R. G. 1995. Three-dimensional models of the marine carbon cycle. In:
Global Change, Proceedings of the First Demetra Meeting, October 28-31, 1991, 246-264. |
| Najjar, R G., J.L. Sarmiento and J.R. Toggweiler. 1992. Downward transport and
fate of organic matter in the ocean: simulations with a general circulation model. Global
Biogeochem. Cycles, 6, 45-76. |
| Najjar, R. G. 1992. Marine Biogeochemistry. In: Climate System Modeling,
Trenberth, K. (ed.), Cambridge University Press, Cambridge, England, 241-280. |
| Doney, S. C., R. G. Najjar, and S. Stewart. 1995. Photochemistry, mixing and
diurnal cycles in the upper ocean. J. Mar. Res. 53, 341-369. |
| Keeling, R. F., R. G. Najjar, M. L. Bender and P. P. Tans. 1993. What atmospheric
oxygen measurements can tell us about the globa carbon cycle. Global Biogeochem. Cycles 7,
37-67. |
| Levitus, S., J. Reid, M. E. Conkright, R. G. Najjar, and A. Mantyla. 1993.
Distribution of phosphate, nitrate and silicate in the world oceans. Prog. Oceanogr. 31,
245-273. |
| Doney, S. C., D. M. Glover, and R. G. Najjar. The nitrogen cycle in a coupled,
one-dimensional biological-physical model of the JGOFS Bermuda Atlantic Time Series (BATS)
site. In press, Deep-Sea Res. |
| Najjar, R. G. and R. F. Keeling. Analysis of the mean annual cycle of the
dissolved oxygen anomaly in the world ocean. To be submitted to J. Mar. Res. |
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Collaborators
Professors Lakshmi Kantha, Department Aerospace Engineering, University of
Colorado (modeling of coastal waters)
Dr. Ralph Keeling, Scripps Institution of Oceanography (global oxygen and carbon cycles)
Dr. David Erickson, Atmospheric Chemistry Division, National Center for Atmospheric
Research (air-sea gas exchange)
Dr. Scott Doney, Climate and Global Dynamics Division, National Center for Atmospheric
Research (marine biogeochemical modeling)
Sydney Levitus, National Oceanographic Data Center (global nutrient distributions)
Current and Pending Support
Recently Completed
National Aeronautics and Space Administration, Grant, 2383-MD/BGE-0005,
$166,287, 1January 1993 to 31 October 1995. Development of a model of atmospheric oxygen
variations to estimate terrestrial carbon storage and release. With R. F. Keeling (Scripps
Institution of Oceanography) and D. J. Erickson III (National Center for Atmospheric
Research).
Naval Oceanographic Office, Interagency Personnel Agreement, $30,661 for salary, fringe
and travel (no overhead) for R. Najjar. A three-dimensional ecosystem model of the Baltic
Sea. With L. Kantha (University of Colorado) and C. Horton (Stennis Space Center.)
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