This study presents a procedure developed to use existing aerial photographs to survey beach erosion. The use of the procedure is illustrated by data from Onslow and Carteret Counties in North Carolina. A preliminary evaluation of the results obtained in these two counties is given. The procedure is applicable to a variety of conditions and has important advantages over other methods of collecting beach erosion data. The procedure consists of selecting stable reference points on aerial photographs taken in different years and measuring between the stable reference points and points on the transient beach. The measurements are converted to ground distances, and the difference in ground distance is computed. The difference in ground distance represents the change in location of the beach between the dates of the aerial photographs and is converted to an annual rate of change by dividing by the time interval. The change in two locations on the beach, the dune line and the high water line, is determined. A special effort was made to reduce the effects of the errors inherent in aerial photographs. An extensive review of the literature concerning the applications of aerial photographs to investigations of coastal phenomena is included.


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    An Aerial Photographic Technique for Beach Erosion Surveys in North Carolina


    Beteiligte:

    Erschienen in:

    Erscheinungsdatum :

    1971


    Format / Umfang :

    19528766


    Medientyp :

    Report


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Klassifikation :


    Beach Fill and Sediment Trap at Carolina Beach, North Carolina

    Jarrett, James Thomas / Hemsley, James Michael | HENRY – Bundesanstalt für Wasserbau (BAW) | 1988

    Freier Zugriff

    Beach Changes at Holden Beach, North Carolina, 1970-74

    Miller, Martin C. | HENRY – Bundesanstalt für Wasserbau (BAW) | 1983

    Freier Zugriff

    Aerial photographic aircraft

    ZHANG JINHAI | Europäisches Patentamt | 2016

    Freier Zugriff

    Long-Term Changes in Beach Fauna at Duck, North Carolina

    Diaz, Robert J. / DeAlteris, J. T. | HENRY – Bundesanstalt für Wasserbau (BAW) | 1982

    Freier Zugriff

    DETACHABLE AERIAL PHOTOGRAPHIC APPARATUS

    TAI WEI-YING / CHANG CHAN-RU / TANG CHUN-WEN | Europäisches Patentamt | 2017

    Freier Zugriff