Willey, J. D.. Department of Chemistry, University of North Carolina at Wilmington, willeyj@uncwil.edu
Kieber, R. D.. Department of Chemistry, University of North Carolina at Wilmington, kieberr@uncwil.edu
Avery, G. B.. Department of Chemistry, University of North Carolina at Wilmington, averyg@uncwil.edu
Eyman, M. S.. Department of Chemistry, University of North Carolina at Wilmington,

 
RAINWATER DISSOLVED ORGANIC CARBON AS A PART OF THE GLOBAL CARBON CYCLE
 
Dissolved organic carbon (DOC) is a major component of both marine (23 uM) and continental (161 uM) rain, present in concentrations greater than nitric and sulfuric acids combined. Rain is a significant source of DOC to surface seawater, equivalent to the magnitude of riverine input of DOC to the open ocean, and half the magnitude of carbon buried in marine sediments per year on a global scale. Current models of global carbon cycling focus primarily on inorganic forms of carbon, and are unable to account for approximately 10% of the global carbon dioxide, suggesting a significant missing carbon sink. Quantification of the average DOC concentration in marine rain allows calculation of the global rainwater flux of DOC of 0.3 GtC/yr, which, although not the same carbon, is equivalent in magnitude to 20% of the missing carbon sink.
 
Day: Tuesday, Feb. 2
Time: 08:45 - 09:00am
Location: Eldorado Hotel
 
Code: CS56TU0845E