3.3
UT/LS mixing determined from in situ and satellite ozone measurements in the region of the subtropical jet
E. A. Ray, NOAA/AL, Boulder, CO; and K. H. Rosenlof, A. F. Tuck, and D. Parrish
The subtropical jet is an interesting region to analyze mixing and transport in the UT/LS due to the wide range of scales over which these processes are observed to occur. We use over 5 years of in situ ozone and state measurements from the NASA WB-57F and the NOAA Gulfstream-IV along with 3 years of remotely sensed ozone measurements from AIRS and NCEP analysis data to determine some of the characteristics of mixing over a range of spatial scales from hundreds of meters to thousands of kilometers. We composite the data from different regions of the jet, such as entrance and exit regions, as well as orientation of aircraft tracks relative to the wind direction for the in situ measurements and perform probability distribution and scaling analysis within each composite. This analysis reveals the variability, intermittency and extreme values of ozone for different jet conditions. Comparisons between AIRS and in situ ozone analysis on similar scales will be made and interannual variability in the mixing characteristics will also be discussed briefly. .
Session 3, General middle atmosphere session (radiation/chemistry/transport)
Monday, 13 June 2005, 2:35 PM-4:35 PM, Ballroom A
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