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Atmospheric Composition

The objective of the proposed research is to improve understanding of Earth's troposphere and stratosphere by balloon, ground and aircraft-based molecular emission measurements at millimeter and sub-millimeter wavelengths. Well-founded concerns that technological activities may perturb atmospheric balances, particularly those affecting climate, regional air quality and maintaining protective ozone in the stratosphere, justify this objective. Specific activities under this task include: 1) balloon flights of super-conductive heterodyne receivers operating at 600 and 200 GHz at mid- and arctic latitudes to provide constituent vertical profiles from 12 to 35 km to test and improve chemical models and validate satellite data. 2) Ground-based observations of tropospheric gases (e.g. O3, CO, CH2O) using very wide bandwidth heterodyne receivers 3) Continued development of mm and sub-mm instrumentation and observational techniques to expand measurement capability to include complete chemical families of atmospheric constituents and key tropospheric tracers and pollutants with improved spatial resolution.

Project PI: Robert Stachnik/Jet Propulsion Laboratory

Jet Propulsion Laboratory M/S 183-401 4800 Oak Grove Drive Pasadena, CA 91109

Phone: (818)354-1921

Fax: (818)393-5065

Email: robert.a.stachnik@jpl.nasa.gov

http://science.jpl.nasa.gov/people/Stachnik/

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Started: Aug 09, 2010

Last Activity: Dec 10, 2010

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