Along-track interferometry (ATI) observations of currents and fronts in the Tay estuary, Scotland|
J. Trevor Macklin, Graham Ferrier, Simon Neill, Graham Copeland and Andrew Folkard
boat-based methods are unable to measure current fields with sufficient spatial
coverage for accurate modelling of hydrodynamic processes in estuaries.
This means that present models are limited
in their ability to predict the dispersion of pollution and sediment.
Remotely-sensed data offer more extensive
spatial coverage. However, previous
studies based on conventional optical, thermal and radar imaging sensors have
failed to obtain sufficient temporal coverage in order to map the details of
the current field. The new technique of
along-track interferometry (ATI) is attractive because it can estimate the
instantaneous surface flow from a single pass over a whole estuary.
Here we present some observations over the
Tay Estuary, Scotland, which illustrate the benefits of this technique.
The results demonstrate the potential for
enhancing existing hydrodynamic models of this region.
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Submitted: 19 June 2003
Revised: 03 March 2004
Accepted: 09 March 2004
Macklin J T, Ferrier G, Neill S, Copeland G & Folkard A, 2004. Along-track interferometry (ATI) observations of currents and fronts in the Tay estuary, Scotland. EARSeL eProceedings 3(2), 179-190