OBSERVED STRATOSPHERIC PROFILES AND STRATOSPHERIC LIFETIMES OF HCFC-141B AND HCFC-142B

Authors
LEE JM STURGES WT PENKETT SA ORAM DE SCHMIDT U ENGEL A BAUER R
Citation
Jm. Lee et al., OBSERVED STRATOSPHERIC PROFILES AND STRATOSPHERIC LIFETIMES OF HCFC-141B AND HCFC-142B, Geophysical research letters, 22(11), 1995, pp. 1369-1372
Citations number
16
Categorie Soggetti
Geosciences, Interdisciplinary
Journal title
Geophysical research letters → ACNP
ISSN journal
00948276
Volume
22
Issue
11
Year of publication
1995
Pages
1369 - 1372
Database
ISI
SICI code
0094-8276(1995)22:11<1369:OSPASL>2.0.ZU;2-8
Abstract
We present here the first stratospheric profile measurements of HCFC-1 41b (CH3-CFCl2) and HCFC-142b (CH3-CF2Cl). From the measurements we de rive a stratospheric lifetime of 68 +/- 11 years for HCFC-14lb acid an estimated minimum stratospheric lifetime for HCFC-142b of 138 years r elative 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.