• Login
    View Item 
    •   Home
    • University of Alaska Fairbanks
    • UAF Graduate School
    • Older Theses Not Clearly Affiliated with a Current College
    • View Item
    •   Home
    • University of Alaska Fairbanks
    • UAF Graduate School
    • Older Theses Not Clearly Affiliated with a Current College
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

    All of Scholarworks@UACommunitiesPublication DateAuthorsTitlesSubjectsTypeThis CollectionPublication DateAuthorsTitlesSubjectsType

    My Account

    Login

    First Time Submitters, Register Here

    Register

    Statistics

    Display statistics

    Arctic Haze: Meteorological Aspects Of Long-Range Transport

    • CSV
    • RefMan
    • EndNote
    • BibTex
    • RefWorks
    Thumbnail
    Name:
    Raatz_W_1983.pdf
    Size:
    3.535Mb
    Format:
    PDF
    Download
    Author
    Raatz, Wolfgang Eduard
    Keyword
    Physics, Atmospheric Science
    Metadata
    Show full item record
    URI
    http://hdl.handle.net/11122/9299
    Abstract
    A time series of concentrations of pollution aerosols collected over a period of four years in the near-surface air at Barrow, Alaska, was used to investigate tropospheric long-range transport of anthropogenic pollution from mid-latitudes into the Arctic. This transport takes place when the mid-latitudinal and arctic atmospheric circulations remain in a quasi-persistent mode. Sudden changes in the circulation pattern explain the episodic character of the arctic pollution aerosol. Transport of aerosols is accomplished by quasi-stationary anticyclones and takes place along their peripheries where pressure gradients are relatively strong. The seasonal variation in concentration of the arctic pollution aerosol is explained by the seasonal variation in the occurrence and position of mid-latitude blocking anticyclones, of the arctic anticyclone, and of the Asiatic anticyclone. The positions of the major anticyclonic centers are responsible for the fact that Soviet industrial sources contribute to the arctic pollution aerosol predominantly during winter, European sources during spring, and that North American and Far Eastern industrial sources contribute little to the arctic pollution aerosols. Air masses carrying pollutants can be traced by their chemical characteristics obtained over the source regions, however, the original meteorological characteristics are lost during the transport which lasts for about 8-9 days. A second data set, collected during the "Ptarmigan" weather reconnaissance flights, was investigated for observations of Arctic Haze over the Alaskan Arctic. A connection between Arctic Haze and the arctic pollution aerosols is suggested, for the occurrence of Arctic Haze undergoes a similar seasonal variation as that of the pollution aerosols, and similar circulation modes leading to the Soviet Union and Europe can be found during the presence of Arctic Haze. In addition, the data seem to suggest that besides a probable pollution-derived component during winter/spring Arctic Haze might be desert dust-derived during summer.
    Description
    Dissertation (Ph.D.) University of Alaska Fairbanks, 1983
    Date
    1983
    Type
    Dissertation
    Collections
    Older Theses Not Clearly Affiliated with a Current College
    Theses (Unassigned)

    entitlement

     
    ABOUT US|HELP|BROWSE|ADVANCED SEARCH

    The University of Alaska Fairbanks is an affirmative action/equal opportunity employer and educational institution and is a part of the University of Alaska system.

    ©UAF 2013 - 2023 | Questions? ua-scholarworks@alaska.edu | Last modified: September 25, 2019

    Open Repository is a service operated by 
    Atmire NV
     

    Export search results

    The export option will allow you to export the current search results of the entered query to a file. Different formats are available for download. To export the items, click on the button corresponding with the preferred download format.

    By default, clicking on the export buttons will result in a download of the allowed maximum amount of items.

    To select a subset of the search results, click "Selective Export" button and make a selection of the items you want to export. The amount of items that can be exported at once is similarly restricted as the full export.

    After making a selection, click one of the export format buttons. The amount of items that will be exported is indicated in the bubble next to export format.