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The response of ClO radical concentrations to variations in NO_2 radical concentrations in the lower stratosphere

Stimpfle, R. M. and Koplow, J. P. and Cohen, R. C. and Kohn, D. W. and Wennberg, P. O. and Judah, D. M. and Toohey, D. W. and Avallone, L. M. and Anderson, J. G. and Salawitch, R. J. and Woodbridge, E. L. and Webster, C. R. and May, R. D. and Proffitt, M. H. and Aiken, K. and Margitan, J. and Loewenstein, M. and Podolske, J. R. and Pfister, L. and Chan, K. R. (1994) The response of ClO radical concentrations to variations in NO_2 radical concentrations in the lower stratosphere. Geophysical Research Letters, 21 (23). pp. 2543-2546. ISSN 0094-8276.

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The response of ClO concentrations to changes in NO_2 concentrations has been inferred from simultaneous observations of [ClO], [NO], [NO_2] and [O_3] in the mid-latitude lower stratosphere. This analysis demonstrates that [ClO] is inversely correlated with [NO_2], consistent with formation and photolysis of [ClONO_2]. A factor of ten range in the concentration of NO_2 was sampled (0.1 to 1×10^9 mol/cm^3), with a comparable range in the ratio of [ClO] to total available inorganic chlorine (1% ≤ [ClO]/[Cl_y] ≤ 5%). This analysis leads to an estimate of [ClONO_2]/[Cl_y] = 0.12 (×/÷2), in the mid-latitude, lower-stratospheric air masses sampled.

Item Type:Article
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Cohen, R. C.0000-0001-6617-7691
Wennberg, P. O.0000-0002-6126-3854
Toohey, D. W.0000-0003-2853-1068
Alternate Title:The response of ClO radical concentrations to variations in NO2 radical concentrations in the lower stratosphere
Additional Information:© 1994 American Geophysical Union. Manuscript Accepted: 29 Aug 1994. Manuscript Received: 22 Jun 1994. Paper number 94GL02373. We thank the pilots and ground crew of the ER-2 based at NASA Ames Research Center. We thank J. Herman,R . McPeters and the NASA GSFC processing team for providing TOMS data. At Harvard we thank B. Heroux for providing Cl resonance lamps; and J. Demusz,N. Allen, N. Hazen, T. Martin,E . Thompson and E. Schomp for computer, software, electrical and mechanical support. This work was supported by NASA grants NAG-l-1305 and HSRP-92-659.
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Issue or Number:23
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ID Code:47278
Deposited By: Ruth Sustaita
Deposited On:17 Jul 2014 15:56
Last Modified:09 Mar 2020 13:19

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