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Tropospheric and lower stratospheric vertical profiles of ethane and acetyleneThe first known vertical distributions of ethane and acetylene which extend into the lower stratosphere are reported. The average upper tropospheric concentrations, between 20,000 ft and 35,000 ft, near 37 deg N-123 deg W were 1.2 micrograms/cu m (1.0 ppb) for ethane and 0.24 micrograms /cu m (0.23 ppb) for acetylene while the values near 9 N-80 W were 0.95 micrograms/cu m (0.77 ppb) and 0.09 micrograms/cu m (0.09 ppb), respectively. Detectable quantities of both ethane and acetylene are present in the lower stratosphere. There is a sharp decrease in the levels of these two compounds as one crosses the tropopause and ascends into the lower stratosphere. The observed levels of ethane and acetylene may allow some impact on the background chemistry of the troposphere and stratosphere.
Document ID
19790065602
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Cronn, D.
(Washington State Univ. Pullman, WA, United States)
Robinson, E.
(Washington State University Pullman, Wash., United States)
Date Acquired
August 9, 2013
Publication Date
August 1, 1979
Publication Information
Publication: Geophysical Research Letters
Volume: 6
Subject Category
Environment Pollution
Accession Number
79A49615
Funding Number(s)
CONTRACT_GRANT: EPA-R-080403-30-2
CONTRACT_GRANT: NSG-7214
Distribution Limits
Public
Copyright
Other

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