Download or read book Stratospheric Trace Gas Composition Studies Utilizing in Situ Cryogenic, Whole-air Sampling Methods written by and published by . This book was released on 1981 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tri-sampler is used .... no variations with time within the stratosphere have been detected over the five-year duration of the flights. Stratospheric trace gas composition, cryognic (whole air sampling), oxides of nitrogen, and fluorocarbons--Abstract/Keywords.