Airborne remote sensing observations of topographic steering of cooling water discharges into coastal and estuarine waters

L.A. Mofor, P. A. Davies

    Research output: Chapter in Book/Report/Conference proceedingConference contribution


    The interaction of cooling water discharges with tidal currents in coastal and estuarine sites having complex surrounding topography is very difficult to monitor by conventional boat surveys. Effective monitoring of this interaction is very important because of its consequences for the fate of effluent discharges at such sites. The synoptic capability of remote sensing, together with the high temporal and spatial resolutions offered by airborne remote sensing systems, make such techniques very useful for monitoring effluent discharges of this type. In this study, thermal infrared data from the Daedalus AADS 1268 Airborne Thematic Mapper have been used to study the dynamics of cooling water effluent fields affected by ambient water tides and complex surrounding topography at three nuclear power station sites in the UK, namely, Hunterston and Torness on the west and east coast of Scotland respectively, and Wylfa on the north coast of Wales. It is demonstrated that under certain tidal conditions for these sites, the surrounding topography plays a significant role in the dynamics of the cooling water discharge fields, by steering the resulting effluent field, and hence affecting the level of mixing of the effluent with the receiving ambient water. The study has also confirmed the usefulness of the so-called length scale approach (see, for example Fischer et al., 1979) for the analysis and interpretation of cooling water plume trajectories, by demonstrating the significance of these length scales on surface thermal infrared images of cooling water effluent fields in a cross flow at one these sites.
    Original languageEnglish
    Title of host publicationRecent research advances in the fluid mechanics of turbulent jets and plumes
    EditorsP.A. Davies, M.J. Valente Neves
    Place of PublicationDordrecht
    PublisherKluwer Academic Publishers
    Number of pages17
    ISBN (Print)0792326997
    Publication statusPublished - 1994
    EventNATO Advanced Research Workshop on Recent Research Advances in the Fluid Mechanics of Turbulent Jets and Plumes - Viana Do Castelo, Portugal
    Duration: 28 Jun 19932 Jul 1993

    Publication series

    NameNATO ASI series. Series E: Applied Sciences
    PublisherKluwer Academic
    ISSN (Print)0168-132X


    WorkshopNATO Advanced Research Workshop on Recent Research Advances in the Fluid Mechanics of Turbulent Jets and Plumes
    City Viana Do Castelo

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