Subsidence, Mixing and Denitrification of Arctic Polar Vortex Air Measured During POLARIS

A new technique is presented to determine the degree of denitrification that occured during the 1996/97 Arctic winter, based on balloon and aircraft borne measurements of NOy, N2O and CH4. In this study high-altitude balloon measurements are used to define the properties of air masses that later des...

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Bibliographic Details
Main Authors: Rex, M., Salawitch, R., Toon, G., Sen, B., Margitan, J., Osterman, G., Blavier, J. F., Gao, R., Donnelly, S., Keim, E., Neuman, J., Fahey, D., Webster, C., Scott, D., Herman, R., May, R., Moyer, E., Gunson, M., Irion, F., Chang, A., Rinsland, C., Bui, T.
Language:English
Published: 2004
Subjects:
stratosphere transport tracers mixing ozone polar vortex denitrification subsidence
Arctic
Online Access:http://hdl.handle.net/2014/16853
Description
Summary:A new technique is presented to determine the degree of denitrification that occured during the 1996/97 Arctic winter, based on balloon and aircraft borne measurements of NOy, N2O and CH4. In this study high-altitude balloon measurements are used to define the properties of air masses that later descend in the polar vortex to altitudes sampled by the ER-2 aircraft and mix isentropically with mid-latitude air.

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