Particle microphysics and chemistry in remotely observed mountain polar stratospheric clouds

被引:146
作者
Carslaw, KS
Wirth, M
Tsias, A
Luo, BP
Dornbrack, A
Leutbecher, M
Volkert, H
Renger, W
Bacmeister, JT
Peter, T
机构
[1] Max Planck Inst Chem, D-55020 Mainz, Germany
[2] USN, Res Lab, Washington, DC 20375 USA
[3] Deutsch Forsch Anstalt Luft & Raumfahrt, Oberpfaffenhofen, Germany
关键词
D O I
10.1029/97JD03626
中图分类号
P4 [大气科学(气象学)];
学科分类号
0706 ; 070601 ;
摘要
Polar stratospheric clouds (PSCs) at 22-26 km were observed over the Norwegian mountains by airborne lidar on January 15, 1995. Simulations using a mesoscale model reveal that they were caused by mountain-induced gravity waves. The clouds had a highly detailed filamentary structure with bands as thin as 100 m in the vertical, and moved insignificantly over 4 hours, suggesting them to be quasi-stationary. The aircraft flight path was parallel or close to parallel with the wind at cloud level. Such a quasi-Lagrangian observation, together with the presence of distinct aerosol layers, allows an air parcel trajectory through the cloud to be constructed and enables the lidar images to be simulated using a microphysical box model and light scattering calculations. The results yield detailed information about particle evolution in PSCs and suggest that water ice nucleated directly from liquid HNO3/H2SO4/H2O droplets as much as 4 K below the ice frost point. The observation of solid nitric acid hydrate particles downwind of the mountains shows that such mesoscale events can generate solid PSC particles that can persist on: the synoptic scale. We also draw attention to the possible role of mesoscale PSCs in chlorine activation and subsequent ozone destruction.
引用
收藏
页码:5785 / 5796
页数:12
相关论文
共 46 条
  • [1] BECMEISTER JT, 1994, WEATHER FORECAST, V9, P241
  • [2] Mechanisms and temperatures for the freezing of sulfuric acid aerosols measured by FTIR extinction spectroscopy
    Bertram, AK
    Patterson, DD
    Sloan, JJ
    [J]. JOURNAL OF PHYSICAL CHEMISTRY, 1996, 100 (06) : 2376 - 2383
  • [3] Heterogeneous reactions on stratospheric background aerosols, volcanic sulfuric acid droplets, and type I polar stratospheric clouds: Effects of temperature fluctuations and differences in particle phase
    Borrmann, S
    Solomon, S
    Dye, JE
    Baumgardner, D
    Kelly, KK
    Chan, KR
    [J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 1997, 102 (D3) : 3639 - 3648
  • [4] Modeling the composition of liquid stratospheric aerosols
    Carslaw, KS
    Peter, T
    Clegg, SL
    [J]. REVIEWS OF GEOPHYSICS, 1997, 35 (02) : 125 - 154
  • [5] STRATOSPHERIC AEROSOL GROWTH AND HNO3 GAS-PHASE DEPLETION FROM COUPLED HNO3 AND WATER-UPTAKE BY LIQUID PARTICLES
    CARSLAW, KS
    LUO, BP
    CLEGG, SL
    PETER, T
    BRIMBLECOMBE, P
    CRUTZEN, PJ
    [J]. GEOPHYSICAL RESEARCH LETTERS, 1994, 21 (23) : 2479 - 2482
  • [6] CARSLAW KS, 1998, IN PRESS NATURE
  • [7] THE LIFETIME OF LEEWAVE-INDUCED ICE PARTICLES IN THE ARCTIC STRATOSPHERE .1. BALLOONBORNE OBSERVATIONS
    DESHLER, T
    PETER, T
    MULLER, R
    CRUTZEN, P
    [J]. GEOPHYSICAL RESEARCH LETTERS, 1994, 21 (13) : 1327 - 1330
  • [8] DORNBRACK A, 1997, IN PRESS METEOROL AP
  • [9] DRDLA K, 1994, GEOPHYS RES LETT, V21, P2473
  • [10] DUDHIA J, 1993, MON WEATHER REV, V121, P1493, DOI 10.1175/1520-0493(1993)121<1493:ANVOTP>2.0.CO