Shoreham facies interpretation from 2004 sidescan
Description
Temporal survey around aggregate extraction site off Shoreham (approx 4 x 2 km), to assess utility of techniques for seabed mapping and monitoring. 100% side scan mosaics in 2001, 2002, 2003, 2004 used to delineate acoustically distinct areas that were then ground-truthed using grabs and video. Additional ground-truth sampling by trawls in 2003 & 2004. AGDS (QTC) surveys in 2002 & 2003. Multibeam surveys in 2003, 2004. Polygonised maps available for 2001 to 2004. This submission for 2004, showing seabed character (substrate & bedform) interpreted from side scan mosaics. QTC data subjected to supervised & unsupervised classification for comparison across years. Supervised classification based on sediment type (Folk classification), faunal classes, and sediment/bedform types identified from side scan mosaic. Habitat/biotope classification not attempted.
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