SATELLITE DERIVED BATHYMETRY PRODUCTION CASE STUDY AT DEEPWATER PORT OF MAPTAPHUT INDUSTRIAL PARK RAYONG
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Abstract
The satellite-derived bathymetry model (SDB) is an alternative way of making elevation data for large nearshore areas. This is essential for geological study, coastal environment, and transportation management in deepwater ports because the nearshore depth around the port should be deeper than on a typical beach. This study is about finding the bathymetry production method using Sentinel-2 imagery and depth data from a bathymetry boat at Maptaphut Industrial Area Deepwater Port, Rayong. The suitable images were downloaded over a three-month period. This study investigated the model production from Lyzenga and Stumpf's empirical formulas and blue band selection (bands 1 and 2 from the sentinel-2 image) for better model accuracy. The results showed that model accuracy is about 2–5 m, Lyzenga algorithm was probably same with Stumpf algorithm and the blue band in band 2 was better than band 1. The main limitation of model production in this study was that a lot of turbidity covered the water surface, so the depth estimation model was shallower than field depth data, resulting in lower accuracy in these areas
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The published articles are copyright of the Engineering Journal of Research and Development, The Engineering Institute of Thailand Under H.M. The King's Patronage (EIT).
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