Dilution of the Antarctic ozone hole into southern midlatitudes, 1998-2000

被引:18
作者
Ajtic, JV
Connor, BJ
Lawrence, BN
Bodeker, GE
Hoppel, KW
Rosenfield, JE
Heuff, DN
机构
[1] Natl Inst Water & Atmospher Res Lauder, Omakau 9182, Central Otago, New Zealand
[2] Univ Canterbury, Dept Phys & Astron, Christchurch 8020, New Zealand
[3] Rutherford Appleton Lab, British Atmospher Data Ctr, Didcot OX11 0QX, Oxon, England
[4] USN, Res Lab, Remote Sensing Phys Branch, Washington, DC 20375 USA
[5] NASA, Goddard Space Flight Ctr, Goddard Earth Sci & Technol Ctr, Greenbelt, MD 20771 USA
关键词
D O I
10.1029/2003JD004500
中图分类号
P4 [大气科学(气象学)];
学科分类号
0706 ; 070601 ;
摘要
[1] The reduction in southern midlatitude ozone is quantified by evaluating the trajectories of ozone-depleted air masses, assuming that photochemical recovery of ozone in advected air parcels can be ignored. This procedure is carried out for the 3 months from 15 October to 15 January for each of the years 1998, 1999, and 2000. Two distinct source regions, the vortex core and the vortex edge, are considered, and for each day, diabatic reverse domain filling calculations are performed for an ensemble of parcels between 30 degreesS and 60 degreesS and 400 - 700 K in altitude. In 1998, 1999, and 2000 the mean calculated ozone reduction is 16, 18, and 19 DU, respectively. Air parcels from the vortex edge region are significant contributors to the reduction, especially during spring. Results for four longitudinal and three latitudinal midlatitude subregions are also presented. A comparison with the Total Ozone Mapping Spectrometer measurements of total column ozone shows that without the dilution, ozone over Southern Hemisphere midlatitudes would be 5 - 6% higher during spring and summer. This result is probably an overestimate due to the neglect of photochemical recovery.
引用
收藏
页码:D171071 / 9
页数:9
相关论文
共 55 条
  • [11] A three-dimensional model study of long-term mid-high latitude lower stratosphere ozone changes
    Chipperfield, MP
    [J]. ATMOSPHERIC CHEMISTRY AND PHYSICS, 2003, 3 : 1253 - 1265
  • [12] Polar ozone depletion: A three-dimensional chemical modeling study of its long-term global impact
    Eckman, RS
    Grose, WL
    Turner, RE
    Blackshear, WT
    [J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 1996, 101 (D17) : 22977 - 22989
  • [13] Seasonal persistence of midlatitude total ozone anomalies
    Fioletov, VE
    Shepherd, TG
    [J]. GEOPHYSICAL RESEARCH LETTERS, 2003, 30 (07) : 70 - 1
  • [14] Study of the interannual ozone loss and the permeability of the Antarctic polar vortex front aerosol and ozone lidar measurements in Dumont d'Urville (66.4°S, 140°E)
    Godin, S
    Bergeret, V
    Bekki, S
    David, C
    Mégie, G
    [J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2001, 106 (D1): : 1311 - 1330
  • [15] OZONE DESTRUCTION THROUGH HETEROGENEOUS CHEMISTRY FOLLOWING THE ERUPTION OF EL CHICHON
    HOFMANN, DJ
    SOLOMON, S
    [J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 1989, 94 (D4): : 5029 - 5041
  • [16] STRATOSPHERE-TROPOSPHERE EXCHANGE
    HOLTON, JR
    HAYNES, PH
    MCINTYRE, ME
    DOUGLASS, AR
    ROOD, RB
    PFISTER, L
    [J]. REVIEWS OF GEOPHYSICS, 1995, 33 (04) : 403 - 439
  • [17] POAM III observations of the anomalous 2002 Antarctic ozone hole
    Hoppel, K
    Bevilacqua, R
    Allen, D
    Nedoluha, G
    Randall, C
    [J]. GEOPHYSICAL RESEARCH LETTERS, 2003, 30 (07) : 47 - 1
  • [18] POAM III observations of arctic ozone loss for the 1999/2000 winter -: art. no. 8262
    Hoppel, K
    Bevilacqua, R
    Nedoluha, G
    Deniel, C
    Lefèvre, F
    Lumpe, J
    Fromm, M
    Randall, C
    Rosenfield, J
    Rex, M
    [J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2002, 107 (D20)
  • [19] Observations of the 1995 ozone hole over Punta Arenas, Chile
    Kirchhoff, VWJH
    Sahai, Y
    Casiccia, CAR
    Zamorano, F
    Valderrama, V
    [J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 1997, 102 (D13) : 16109 - 16120
  • [20] Knight JR, 1998, Q J ROY METEOR SOC, V124, P1527, DOI 10.1002/qj.49712454909