Observed stratospheric profiles and stratospheric lifetimes of HCFC-141b and HCFC-142b

Lee, J. M., Sturges, W. T. ORCID: https://orcid.org/0000-0002-9044-7169, Penkett, S. A., Oram, D. E., Schmidt, U., Engel, A. and Bauer, R. (1995) Observed stratospheric profiles and stratospheric lifetimes of HCFC-141b and HCFC-142b. Geophysical Research Letters, 22 (11). pp. 1369-1372. ISSN 0094-8276

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Abstract

We present here the first stratospheric profile measurements of HCFC-141b (CH3-CFCl2) and HCFC-142b (CH3-CF2Cl). From the measurements we derive a stratospheric lifetime of 68±11 years for HCFC-141b and an estimated minimum stratospheric lifetime for HCFC-142b of 138 years relative to an N2O lifetime of 110 y. (These results increase to 104±17 y and >211 y respectively for an N2O lifetime of 168 y). Neither HCFC-141b nor HCFC-142b is now in equilibrium in the stratosphere, due to rapidly increasing emissions in recent years.

Item Type:	Article
Faculty \ School:	Faculty of Science > School of Environmental Sciences
UEA Research Groups:	Faculty of Science > Research Groups > Atmospheric Chemistry (former - to 2018) Faculty of Science > Research Groups > Climate, Ocean and Atmospheric Sciences (former - to 2017) Faculty of Science > Research Groups > Marine and Atmospheric Sciences (former - to 2017) Faculty of Science > Research Groups > Centre for Ocean and Atmospheric Sciences
Depositing User:	Pure Connector
Date Deposited:	11 Jun 2014 12:46
Last Modified:	24 Oct 2022 06:15
URI:	https://ueaeprints.uea.ac.uk/id/eprint/48361
DOI:	10.1029/95GL01313

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