Aim
• Extracting intertidal beach morphology
– Migration of intertidal beach features
– Beach behaviour on long timescale (weeks –
seasons)
Data
• 13 – 18 February 2002 (springtide on 16th)
• Conditions:– Small waves mainly from the North with short periods
( 5.5 s)
– Offshore wind causing set-down
Discussion & Conclusions• Migration cross-shore after 5 days:
– upper bar 13 m– trough 6 m– lower bar 10 m
• Behaviour Rip: migration southward and disappears
– seaside 10 m/day– landside 5 m/day
• Criteria– gradients
– RGB – ratio
Future
• RGB - ratio
• Hue Saturation Value
• eCognition (Remote Sensing Programme):
– Object oriented approach extracting
homogeneous regions.
– Segmentation based on colour and shape.