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Electron content measurements in the auroral zone using GPS : preliminary observations of the main trough and a survey of the degree of irregularity in summer.

Hargreaves, J. K. and Burns, C. J. (1996) Electron content measurements in the auroral zone using GPS : preliminary observations of the main trough and a survey of the degree of irregularity in summer. Journal of Atmospheric and Terrestrial Physics, 58 (13). pp. 1449-1457.

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    Abstract

    Ionospheric electron content was monitored from sites in or near Tromsø, Norway, for six months of 1993, using the transmissions from the satellites of the Global Positioning System (GPS). The data have been used for preliminary studies of two important phenomena of the high-latitude ionosphere: the main trough and the incidence of large irregularities. The latitude and motion of the trough were determined on several occasions during the spring period, and the results compared with previous data. Best agreement is with the formula of Collis and Haggstrom (1988). The incidence of large irregularities was surveyed during a four-month period, approximately from the summer solstice to the autumnal equinox, and the variation with time of day and magnetic activity has been determined. It was found that irregularities are considerably larger by night than by day, but that they are enhanced during both periods by increased magnetic activity. Statistical results are presented. It is suggested that these irregularities are the same as the “auroral blobs” previously studied by incoherent-scatter radar.

    Item Type: Article
    Journal or Publication Title: Journal of Atmospheric and Terrestrial Physics
    Subjects: G Geography. Anthropology. Recreation > GE Environmental Sciences
    Departments:
    ID Code: 22048
    Deposited By: ep_ss_importer
    Deposited On: 18 Feb 2009 13:50
    Refereed?: Yes
    Published?: Published
    Last Modified: 24 Jun 2016 01:14
    Identification Number:
    URI: http://eprints.lancs.ac.uk/id/eprint/22048

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