VU Physics and Astronomy Colloquium

Friday, April 9, at 3:20 PM in NSC 224. Join us for refreshments in NSC 231 at 3:05 PM.

Strategic Ozone Sounding Networks: Review of Design and Accomplishments


Dr. Anne M. Thompson, Dept. of Meteorology, The Pennsylvannia State University

Ozone soundings serve to integrate models, satellite, aircraft and ground-based measurements for better interpretation of ozone variability,including atmospheric losses (stratosphere) and pollution (troposphere). A well-designed network of ozonesonde stations gives information with high resolution on a number of dynamical and  chemical processes, allowing us to answer questions not possible with airborne campaigns or current satellites.  Examples from two types of networks will be presented.  The IONS series, that operated over North America in 2004, 2006, and April and June-July-2008, was designed to address questions about tropospheric ozone budgets and sources, including stratosphere-troposphere transport, and to validate satellite instruments and models.  A global network focusing on processes in the equatorial zone, SHADOZ (Southern Hemisphere Additional Ozonesondes; <http://croc.gsfc.nasa.gov/shadoz>), has operated since 1998 in partnership with NOAA, NASA and the Meteorological Services of host countries (Thompson et al. 2003a,b; 2007).  Examples of important findings from these networks are described.