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Atmospheric Composition

We propose to process and archive approximately 200 whole air samples collected from aircraft and balloon flights during upcoming NASA missions and flights of opportunity for measurements of the isotopic compositions of chemically and/or radiatively important trace gases, such as carbon dioxide and nitrous oxide. Isotope measurements on these and previously archived air samples will be made and the results analyzed in order better understand and quantify stratospheric transport and mixing, stratosphere-troposphere exchange, mesosphere-stratosphere exchange, processes that control the composition of the tropical transition layer, and the sources and sinks of these greenhouse gases. Insight and constraints for chemistry-climate models will also be gained and enable better prediction of how these processes may have changed in the past and how they may change in the future, with applications to better predicting the recovery of the ozone layer, greenhouse gas levels, and feedbacks between them. Analyses of these measurements to achieve these constraints for models and scientific goals will include detailed comparisons of observations from different orbital and suborbital platforms as well as comparisons of these observations with results from box models, analytic solutions to transport equations, and 3D modeling.

Project PI: Kristie Boering/University of California, Berkeley

BG3 Giauque , College of Chemistry 420 Latimer Hall University of California Berkeley, CA 94720-1460

Phone: (510)642-3472

Fax: (510)643-2156

Email: boering@berkeley.edu

http://eps.berkeley.edu/development/view_person.php?uid=100282

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Started: Aug 09, 2010

Last Activity: Dec 10, 2010

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