Bromine in the tropical troposphere and stratosphere as derived from balloon-borne BrO observations
-
Published:2008-12-10
Issue:23
Volume:8
Page:7265-7271
-
ISSN:1680-7324
-
Container-title:Atmospheric Chemistry and Physics
-
language:en
-
Short-container-title:Atmos. Chem. Phys.
Author:
Dorf M.,Butz A.,Camy-Peyret C.,Chipperfield M. P.,Kritten L.,Pfeilsticker K.
Abstract
Abstract. The first tropospheric and stratospheric (4 to 33 km) BrO profile is presented for the inner tropics derived from balloon-borne DOAS (Differential Optical Absorption Spectroscopy) measurements. In combination with photochemical modelling, total stratospheric inorganic bromine (Bry) is deduced to be (21.5±2.5) ppt in 4.5-year-old air, probed in 2005. We derive a total contribution of (5.2±2.5) ppt from brominated very short-lived substances and inorganic product gases to stratospheric Bry Tropospheric BrO was found to be <1 ppt. Our results are compared to two 3-D CTM SLIMCAT model runs, which differ in the lifetime of the bromine source gases, affecting the vertical distribution of Bry in the lower stratosphere. Bromine source gas measurements performed 10 days earlier Laube et al., 2008, indicate a lower Bry of (17.5±0.4) ppt. Potential reasons for this discrepancy are discussed.
Publisher
Copernicus GmbH
Subject
Atmospheric Science
Reference35 articles.
1. Aliwell, S., Van~Roozendael, M., Johnston, P., Richter, A., Wagner, T., Arlander, D., Burrows, J., Fish, D., Jones, R., Tornkvist, K., Lambert, J.-C., Pfeisticker, K., and Pundt, I.: Analysis for BrO in zenith-sky spectra: An intercomparison exercise for analysis improvement, J. Geophys. Res., 107, https://doi.org/10.1029/2001JD000329, 4199 pp., 2002. 2. Butz, A., Bösch, H., Camy-Peyret, C., Chipperfield, M. P., Dorf, M., Dufour, G., Grunow, K., Jeseck, P., Kühl, S., Payan, S., Pepin, I., Pukite, J., Rozanov, A., von Savigny, C., Sioris, C., Wagner, T., Weidner, F., and Pfeilsticker, K.: Inter-comparison of Stratospheric O3 and NO2 abundances retrieved from balloon-borne direct sun observations and Envisat/SCIAMACHY limb measurements, Atmos. Chem. Phys., 5, 10 747–10 797, 2006. 3. Camy-Peyret, C., Flaud, J.-M., Perrin, A., Rinsland, C P., Goldman, A., and Murcray, F.: Stratospheric N2O$_5$, CH4 and N2O profiles from IR solar occultation spectra, J. Atmos. Chem., 16, 31–40, 1993. 4. Chipperfield, M P.: Multiannual simulations with a three-dimensional chemical transport model, J. Geophys. Res., 104, D1, 1781–1805, 1999. 5. Dorf, M., Bösch, H., Butz, A., Camy-Peyret, C., Chipperfield, M. P., Engel, A., Goutail, F., Grunow, K., Hendrick, F., Hrechanyy, S., Naujokat, B., Pommereau, J.-P., Van Roozendael, M., Sioris, C., Stroh, F., Weidner, F., and Pfeilsticker, K.: Balloon-borne stratospheric BrO measurements: comparison with Envisat/SCIAMACHY BrO limb profiles, Atmos. Chem. Phys., 6, 2483–2501, 2006a.
Cited by
91 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献
|
|