RV Edward Forbes 9/76
Cruise summary report
|Ship name (ship code)||RV Edward Forbes (74EF)|
|Cruise period||1976-05-11 — 1976-05-24|
|Port of departure||Barry, United Kingdom|
|Port of return||Barry, United Kingdom|
|Objectives||To carry out a close line bathymetric survey of the Port of London Authority trial dredged channel at Longsand Head in conjunction with a side scan sonar mosaic. The stability of the PLA HiFix chain was to be monitored using the Decca Tracer Buoy. Grab samples were to be taken in the dredged channel in predetermined positions.
To carry out a close line bathymetric survey in conjunction with a side sonar mosaic on the Sandettie Bank. (abandoned due to bad weather).
To evaluate the performance of HiFix 6 operating on the S Rijnmond chain.
To evaluate the performance of a single IOS (Wormley) accelerometer as a 'Heave' recorder.
To determine the presence of an sedimentary features off Totland Pier (Isle of Wight), the National Physical Laboratory rig in Christchurch Bay and Bournemouth Pier using side scan sonar.
To carry out a repeat side scan sonar survey on the Skerries Bank in Start Bay and lift three transponder rigs and a current meter frame.
|Chief scientist||Peter M Hooper (Institute of Oceanographic Sciences Taunton)|
|Cruise report||(0.20 MB) (0.21 MB)|
|Specific||Outer Thames Estuary, English Channel|
|Current meters||Quantity: 1|
Description: 30 days
|Geology and geophysics|
|Grab||Quantity: number of samples = 20|
|Single-beam echosounding||Quantity: 70|
|Long/short range side scan sonar||Quantity: number of hauls = 40|