RRS Challenger CH10/73

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS Challenger (74CH)
Cruise identifierCH10/73
Cruise period1973-08-21 — 1973-09-14
Port of departureDunstaffnage, United Kingdom
Port of returnDunstaffnage, United Kingdom
ObjectivesThe objectives of this cruise were:
(1) Assess the temperature-salinity characteristics of the Wyville-Thompson Ridge overflow. STD survey accomplished.
(2) Bottom temperature surveys. Accomplished through an STD survey.
(3) Repeat STD stations along the main axis of the overflow. Accomplished.
(4) Determine the path of the overflow into the Rockall Trough through repeated STD sections. Accomplished.
Chief scientistRonald I Currie (Scottish Marine Biological Association)
ProjectOverflow '73
Coordinating bodyICES
Cruise reportRRS Challenger CH10/73 cruise report ch10_73.pdf (0.53 MB) 
Ocean/sea areas 
GeneralNorth East Atlantic Ocean (limit 40W)
Physical oceanography 
Water bottle stationsQuantity: number of stations = 22
CTD stationsQuantity: number of stations = 163
Description: 2 with S only
Other physical oceanographic measurementsDescription: particle scattering
Chemical oceanography 
OxygenQuantity: number of stations = 78
PhosphateQuantity: number of stations = 31
NitrateQuantity: number of stations = 95
SilicateQuantity: number of stations = 94
Biology and fisheries 
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: number of stations = 47
Occasional standard measurementsDescription: every 4 hours
Other meteorological measurementsDescription: sea and swell,every 4 hours