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Spatial dynamics of estuarine water surface temperature from airborne remote sensing

Hedger, Richard D., Malthus, Tim J., Folkard, Andrew M. and Atkinson, Peter M. (2007) Spatial dynamics of estuarine water surface temperature from airborne remote sensing Estuarine, Coastal and Shelf Science, 71, (3-4), pp. 608-615. (doi:10.1016/j.ecss.2006.09.009).

Record type: Article


This paper examines the applicability of airborne remote sensing to the characterization and quantification of the spatial dynamics of water surface temperature (WST) within estuaries. For this, a series of successive airborne Thematic Mapper thermal images was acquired of Kirkcudbright Bay, an estuary in the United Kingdom, on two dates. Spatial dynamics were determined by two techniques: (1) qualitatively, which involved interpreting features ‘by eye’; and (2) by the velocimetric technique of maximum cross correlation (MCC). Qualitatively, complex spatial dynamics were identified over a wide range of spatial and temporal scales, associated with the creation and dissipation of eddies, and the convergence and divergence of fronts, all of which were superimposed on the synoptic tidal flow. MCC was effective for producing synoptic velocity fields, but the minimum cell size was constrained by image noise, limiting the ability to analyze small-scale spatial dynamics. The effectiveness of MCC was related to the ratio of spatially correlated variance to spatially independent variance, as estimated from the variogram. Suggestions for optimizing the application of airborne remote sensing to estuarine spatial dynamics are presented.

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Published date: February 2007
Keywords: estuarine dynamics, remote sensing, cross correlation, water surface temperature, uk, scotland, solway firth


Local EPrints ID: 54961
ISSN: 0272-7714
PURE UUID: 4e359d12-4068-463c-ad4d-f39c1417730e

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Date deposited: 01 Aug 2008
Last modified: 17 Jul 2017 14:34

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Author: Richard D. Hedger
Author: Tim J. Malthus
Author: Andrew M. Folkard

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