Cruise inventory

RV Corystes COR4/90

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Corystes (74RY)
Cruise identifierCOR4/90
Cruise period1990-03-08 — 1990-03-21
StatusCompleted
Port of departureLowestoft, United Kingdom
Port of returnLowestoft, United Kingdom
PurposeResearch
Objectives1. To recover a line of four current meter moorings offshore of Marsden Bay.
2. To deploy the tetrapod for zero offset deployments and for 12 and 24
hour anchor stations, depending on the weather conditions. Most
deployments will be in and around the Marsden Bay and Alnmouth Bay
areas.
3. To try out the Cambridge University Colnbrook current meters and to
perform tests on the acoustic backscatter monitor (ABM).
4. To undertake grab sample, side-scan sonar surveys and CTD surveys of
the area as necessary.
5. To complete a 24 hour combined tetrapod/Th-234 geochemistry anchor
station.
6. To run an offshore Th-234 geochemistry section at a suitable location between Marsden and Alnmouth Bays.
Chief scientistEdward M Gmitrowicz (Ministry of Agriculture, Fisheries and Food Lowestoft Fisheries Laboratory)
Cruise reportRV Corystes COR4/90 cruise report co04_90.pdf — access key 'C' (0.22 MB) 
Ocean/sea areas 
GeneralNorth Sea
SpecificNE Coast of England
Track chartsRV Corystes COR4/90 cruise track — trk3571.html
Measurements 
Physical oceanography 
Water bottle stationsQuantity: number of stations = 100
Description: top & bottom 1 with T only
Contamination 
Suspended matterQuantity: number of stations = 83
Description: sediment load/particle size
Other contaminant measurementsQuantity: number of experiments = 7
Description: determination of settling velocity
Geology and geophysics 
GrabQuantity: number of samples = 37
Description: day grab for sediment type
Long/short range side scan sonarQuantity: number of hauls = 10
Description: sidescan survey of Alnmouth Bay (estimated mileage)
Moorings, landers, buoys 
Physical oceanography 
Current meters55° 0' 0" N  1° 22' 0" W — recovery 2 meters (ID 90B2)
Current meters55° 0' 0" N  1° 22' 0" W — recovery 2 meters (ID 90A2)
Current meters55° 0' 0" N  1° 22' 0" W — recovery 2 meters (ID 90D2)
Other physical oceanographic measurements54° 58' 59" N  1° 21' 0" W — near bed velocity 13 Mar 1990 to 16 Mar 1990
Other physical oceanographic measurements55° 21' 0" N  1° 34' 0" W — near bed velocity 17 Mar 1990 to 20 Mar 1990
Other physical oceanographic measurements54° 58' 59" N  1° 21' 0" W — near bed velocity 11 Mar 1990 to 12 Mar 1990
Other physical oceanographic measurements54° 58' 59" N  1° 21' 0" W — near bed velocity 10 Mar 1990 to 11 Mar 1990
Other physical oceanographic measurements54° 58' 59" N  1° 21' 0" W — near bed velocity 12 Mar 1990 to 13 Mar 1990
Other physical oceanographic measurements55° 21' 0" N  1° 34' 0" W — near bed velocity 16 Mar 1990 to 17 Mar 1990