• Browse
    • Author
    • Year
    • Platform
    • Organizations
    • Programs
    • Research Networks
    • Type
  • Search
    • Simple
    • Advanced
  • About
    • About
    • Policies
    • Citation Guide
  • Login
    Logo Alfred Wegener Institut
    Logo Alfred Wegener Institut
    Alfred-Wegener-Institut
    Helmholtz-Zentrum für Polar-
    und Meeresforschung
    • Imprint
    • Contact
    • OAI
    • RSS 2.0

    EPIC.awi.de

    Home
    • Browse
      • Author
      • Year
      • Platform
      • Organizations
      • Programs
      • Research Networks
      • Type
    • Search
      • Simple
      • Advanced
    • About
      • About
      • Policies
      • Citation Guide
    • Login
      Login

      Vertical ozone distribution over the central Atlantic Ocean (70 N-60 S)

      Edit Item Edit Item

      General Information:

      Citation:
      Weller, R. , Neuber, R. and Schrems, O. (1998): Vertical ozone distribution over the central Atlantic Ocean (70 N-60 S) , Polar stratospheric ozone 1997: Proc 4th Europ Symp on Polar Stratospheric Ozone, Schliersee, 1997 (N R P Harris, I Kilbane-Dawe, Amanatidis, eds ) Air pollution research report .
      Cite this page as:
      hdl:10013/epic.13909
      Contact Email:
      rweller@awi-bremerhaven.de
      Related Data:

      Abstract:

      ABSTRACTThe vertical ozone distribution in the troposphere and stratosphere over the Atlantic Ocean has been measured in situ by shipborne ozone soundings during four RV Polarstern meridional transects in January/February 1993, October/November 1993, May/June 1994, and October/November 1996. We observed distinct differences in the vertical distribution pattern of tropospheric ozone between the northern- and the southern hemisphere: The ozone mixing ratio gradients were flat in the northern hemisphere and ozone mixing ratios in the free troposphere did never exceed 80 ppbv up to the tropopause, while the southern hemisphere exhibited a pronounced vertical gradient. Extremely dry air masses with enhanced ozone amounts up to120 ppbv have been found in the tropical free troposphere of the southern hemisphere between 0° and 20°S. The vertical ozone stratification in the troposphere of the southern hemisphere was dominated by this large scale feature. Photochemical ozone production as a consequence of the emissions of natural fires or intrusions of stratospheric air masses are the most probable sources for these ozone rich layers. Our results indicate that the boundary layer ozon distribution of the northern hemisphere is influenced by the advection of pollution derived ozone. In the tropical and mid-latitude southern hemisphere, photochemical ozone loss seems to be the dominating process.

      Further Details:

      Item Type:
      Conference
      Authors:
      Weller, Rolf ; Neuber, Roland ; Schrems, Otto
      Divisions:
      AWI Organizations > Climate Sciences > Atmospheric Circulations
      Programs:
      Basic Research > Helmholtz Independent Research
      Eprint ID:
      3326
      Logo Alfred Wegener Institut
      Alfred-Wegener-Institut
      Helmholtz-Zentrum für Polar-
      und Meeresforschung
      Logo Helmholtz

      • Browse
        • Author
        • Year
        • Platform
        • Organizations
        • Programs
        • Research Networks
        • Type
      • Search
        • Simple
        • Advanced
      • About
        • About
        • Policies
        • Citation Guide
      • Imprint
      • Contact
      • OAI
      © Alfred-Wegener-Institut