We are seeking a postdoctoral researcher to contribute to the modeling component of an ambitious new observational program called ORCAS: The O2/N2 Ratio and CO2 Airborne Southern Ocean Study.
ORCAS seeks to quantify air-sea fluxes of oxygen and carbon dioxide over the Southern Ocean by measuring the seasonal evolution of atmospheric composition from aircraft.  ORCAS will involve a 6-week field campaign in Jan-Feb 2016, based in Punta Arenas, Chile, and nearly 100 flight hours aboard the NSF/NCAR HIAPER Gulfstream V research aircraft.  The project is a collaborative effort, with a core-science team including groups from NCAR, Scripps, Univ. Michigan, Univ. Colorado, Boulder, and Harvard.
The NCAR postdoctoral researcher will use a combination of numerical models and observational data to evaluate mission concepts prior to deployment and assist in analysis and interpretation of the ORCAS dataset.  The fundamental research questions are: (1) What are the magnitudes and interrelationships of summertime air-sea O2 and CO2 fluxes over the Southern Ocean at regional to zonal scales?  (2) What are the dominant physical and biological processes driving the seasonal evolution and spatial variability in these fluxes?  The Community Earth System Model will be a primary numerical tool, and a range of configurations will be used, included fully coupled ocean-atmosphere configurations, and stand-alone, eddy-resolving ocean models.   The postdoc with interact extensively with the ORCAS science team, both in developing optimal sampling strategies and linking to regional transport modeling efforts.
Candidates must have a Ph.D. in oceanography, physical, biological or chemical sciences, engineering or applied math.  Oceanographic, biogeochemical, and/or atmospheric modeling experience is highly desirable.  Strong written and oral communication skills are required.
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