All spirals flown from 1996 – 2003 were grouped into morning and afternoon. Trace gas species were averaged at every 100 m intervals, while aerosol measurements were averaged at every 200 m intervals.  For each species the median, 10^th, 25^th, 75^th, and 90^th percentile values are plotted.  The standard deviation, minimum, and maximum values, and number of spirals used for each statistic are tabulated for every altitude level.

O₃

SO₂