First profile measurements of tropospheric BrO

被引：78

作者：

Fitzenberger, R

Bösch, H

Camy-Peyret, C

Chipperfield, MP

Harder, H

Platt, U

Sinnhuber, BM

Wagner, T

Pfeilsticker, K

机构：

[1] Univ Heidelberg, Inst Umweltphys, D-69120 Heidelberg, Germany

[2] Univ Paris 06, CNRS, LPMA, Paris, France

[3] Univ Leeds, Sch Environm, Leeds, W Yorkshire, England

[4] Max Planck Inst Chem, Mainz, Germany

[5] NOAA, Aeron Lab, Boulder, CO 80303 USA

来源：

GEOPHYSICAL RESEARCH LETTERS | 2000年 / 27卷 / 18期

关键词：

D O I：

10.1029/2000GL011531

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Tropospheric BrO profiles (about 0.6+/-0.2 ppt, and 2.0+/-0.8 ppt at profile maximum) were measured for the first time. Our measurements add new information to recent speculations - based on indirect evidence - of BrO possibly being ubiquitous in the free troposphere [Harder. et al., 1998; Friess et al., 1999; Van Roozendael et al., 1999; Pundt et al., 2000]. Our study relies on a detailed comparison of BrO slant column densities (BrO-SCD) measured in the troposphere from the LPMA/DOAS (Laboratoire de Physique Moleculaire et Applications and Differential Optical Absorption Spectroscopy) gondola by direct Sun absorption, and BrO-SCD values subsequently measured in the lowermost stratosphere during balloon ascent. The difference in total atmospheric BrO-SCDs measured in the troposphere and lowermost stratosphere - after a suitable correction for the change in BrO due to photochemistry and the observation geometry - is then attributed to tropospheric BrO.

引用

收藏

页码：2921 / 2924

页数：4

相关论文

共 22 条

[1] Heterogeneous interactions of HBr and HOCl with cold sulfuric acid solutions: Implications for arctic boundary layer bromine chemistry [J].

Abbatt, JPD ;

Nowak, JB .

JOURNAL OF PHYSICAL CHEMISTRY A, 1997, 101 (11) :2131-2137

[2] HETEROGENEOUS REACTION OF HOBR WITH HBR AND HCL ON ICE SURFACES AT 228-K [J].

ABBATT, JPD .

GEOPHYSICAL RESEARCH LETTERS, 1994, 21 (08) :665-668

[3] Multiannual simulations with a three-dimensional chemical transport model [J].

Chipperfield, MP .

JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 1999, 104 (D1) :1781-1805

[4] BrCl production in NaBr/NaCl/HNO3/O3 solutions representative of sea-salt aerosols in the marine boundary layer [J].

Disselkamp, RS ;

Chapman, EG ;

Barchet, WR ;

Colson, SD ;

Howd, CD .

GEOPHYSICAL RESEARCH LETTERS, 1999, 26 (14) :2183-2186

[5] Rethinking reactive halogen budgets in the midlatitude lower stratosphere [J].

Dvortsov, VL ;

Geller, MA ;

Solomon, S ;

Schauffler, SM ;

Atlas, EL ;

Blake, DR .

GEOPHYSICAL RESEARCH LETTERS, 1999, 26 (12) :1699-1702

[6] Evidence of heterogeneous bromine chemistry on cold stratospheric sulphate aerosols [J].

Erle, F ;

Grendel, A ;

Perner, D ;

Platt, U ;

Pfeilsticker, K .

GEOPHYSICAL RESEARCH LETTERS, 1998, 25 (23) :4329-4332

[7] Stratospheric BrO profiles measured at different latitudes and seasons: Instrument description, spectral analysis and profile retrieval [J].

Ferlemann, F ;

Camy-Peyret, C ;

Fitzenberger, R ;

Harder, H ;

Hawat, T ;

Osterkamp, H ;

Schneider, M ;

Perner, D ;

Platt, U ;

Vradelis, P ;

Pfeilsticker, K .

GEOPHYSICAL RESEARCH LETTERS, 1998, 25 (20) :3847-3850

[8] Differential optical absorption spectroscopy instrument for stratospheric balloonborne trace-gas studies [J].

Ferlemann, F ;

Bauer, N ;

Fitzenberger, R ;

Harder, H ;

Osterkamp, H ;

Perner, D ;

Platt, U ;

Schneider, M ;

Vradelis, P ;

Pfeilsticker, K .

APPLIED OPTICS, 2000, 39 (15) :2377-2386

[9] Intercomparison of measured and modelled BrO slant column amounts for the Arctic winter and spring 1994/95 [J].

Friess, U ;

Chipperfield, MP ;

Harder, H ;

Otten, C ;

Platt, U ;

Pyle, J ;

Wagner, T ;

Pfeilsticker, K .

GEOPHYSICAL RESEARCH LETTERS, 1999, 26 (13) :1861-1864

[10] Stratospheric BrO profiles measured at different latitudes and seasons: Atmospheric observations [J].

Harder, H ;

Camy-Peyret, C ;

Ferlemann, F ;

Fitzenberger, R ;

Hawat, T ;

Osterkamp, H ;

Schneider, M ;

Perner, D ;

Platt, U ;

Vradelis, P ;

Pfeilsticker, K .

GEOPHYSICAL RESEARCH LETTERS, 1998, 25 (20) :3843-3846