Planned maintenance — 18th January 2018 12:00 to 22nd January 2018 09:00 [more]

Cruise inventory

RRS Challenger CH9C/80

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS Challenger (74CH)
Cruise identifierCH9C/80
Cruise period1980-06-08 — 1980-06-17
Port of departureArdrossan, United Kingdom
Port of returnBarry, United Kingdom
Objectives1. To test the assertion that mean currents in the uppermost few metres of the wave field can in principle be measured adequately using vector averaging current sensors mounted on a moored, surface following buoy.
2. To test an experimental mooring designed for this purpose, and to investigate its suitability for mooring arrays of pitch/roll wave buoys.
3. To see whether the technique provides sufficient accuracy for current shear to be detected in the near surface region.
4. To provide further testing for the vector averaging electromagnetic current meter recently developed at IOS.
5. To provide independent measurements in the open sea against which the performance of the UK data buoy wave and current sensors can be assessed.
Chief scientistPeter G Collar (Institute of Oceanographic Sciences Wormley Laboratory)
Cruise reportRRS Challenger CH9C/80 cruise report ch9_80.pdf — access key 'C' (0.22 MB) 
Ocean/sea areas 
GeneralCeltic Sea
SpecificS.W. Approaches
Track chartsRRS Challenger CH9C/80 cruise track — trk2614.html
Physical oceanography 
Current metersQuantity: number of deployments = 2
Description: 5 days
Neutrally buoyant floatsQuantity: number of deployments = 47
Description: surface
Other meteorological measurementsQuantity: number of deployments = 3
Description: sea and swell; 3 records of 1-2 hours duration; pitch and roll buoy