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Lookup NU author(s): Dr Meredith Williams
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The determination of shallow water depth and channel positions in the Red Sea coastal area are essential to model and to forecast the locations of navigable channels and beaches. Multispectral satellite imagery has the potential to provide low cost complete maps of areas of the Red Sea that are difficult to map with traditional hydrographic means due to difficult navigation channels and under water hazard such as small islands coral reefs which spread all over the territorial water. This paper will concentrate on performing hydrographic surveying using satellite imagery. The calibration of these images has been carried out on Rowais channel north Jeddah Islamic port in Saudi Arabia (Red Sea), and the development is based on a set of field measurement including the echo-sounder derived depths of the coral reefs and bottom sediments. The aim of this research is to develop the technology for shallow water hydrographic surveying in order to increase the efficiency with which hydrographic data are acquired and to improve the likelihood that all potential dangers to navigation are detected. The specific objectives are: 1)To assess the suitability of Landsat TM data for estimating water depth. 2)To assess the suitability of SPOT multispectral imagery for mapping small islands not currently marked on navigation charts.
Author(s): Al-Zahrani A, Williams M
Publication type: Conference Proceedings (inc. Abstract)
Publication status: Unknown
Conference Name: International Navigation Conference MELAHA
Year of Conference: 2004
