Open AccessTHE MEASUREMENT OF OFFSHORE SHINGLE MOVEMENT
Author(s) -
M.J. Crickmore,
C.B. Waters,
W.A. Price
Publication year - 1972
Publication title -
proceedings of conference on coastal engineering/proceedings of ... conference on coastal engineering
Language(s) - English
Resource type - Journals
eISSN - 2156-1028
pISSN - 0589-087X
DOI - 10.9753/icce.v13.50
Subject(s) - movement (music) , underwater , submarine pipeline , geology , tracking (education) , field (mathematics) , tracer , position (finance) , wind wave , remote sensing , marine engineering , geodesy , acoustics , geotechnical engineering , engineering , oceanography , physics , mathematics , psychology , pedagogy , finance , nuclear physics , pure mathematics , economics
The objective was to obtain quantitative data on the movement of shingle under wave action in water depths of about 10 to 20 m by tracking pebbles tagged with radioactive material. The paper describes the method of tagging, the method of position fixing, and the development of an underwater detection vehicle with a wide field of view. The field tracer tests demonstrated both increased mobility with decreasing depth and the existence of a small landward movement of shingle inshore of a depth of 12 m. Existing predictive data on the threshold of movement under waves, based on the results of previous work in the laboratory, was confirmed.