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RRS Discovery D121
Cruise summary report
Cruise Info. | |||||||||||||||||||||||||||||
Ship name (ship code) | RRS Discovery (74E3) | ||||||||||||||||||||||||||||
Cruise identifier | D121 | ||||||||||||||||||||||||||||
Cruise period | 1981-06-05 — 1981-06-26 | ||||||||||||||||||||||||||||
Status | Completed | ||||||||||||||||||||||||||||
Port of departure | Ponta Delgada, Portugal | ||||||||||||||||||||||||||||
Port of return | Ponta Delgada, Portugal | ||||||||||||||||||||||||||||
Purpose | Research | ||||||||||||||||||||||||||||
Objectives | The cruise was designed to provide the main set of biological samples of plankton and micronekton for the study of the meandering frontal system between Eastern Atlantic Water and the Western Atlantic Water to the south-west of the Azores. The cruise was a follow up of the joint physical and biological cruise undertaken in late autumn 1980, and the preceeding two cruises during which physical observations were made and when the distribution of nutrient and fluorescence were studied in relation to the front as well as mapping and some biological sampling. | ||||||||||||||||||||||||||||
Chief scientist | Martin V Angel (Institute of Oceanographic Sciences Wormley Laboratory) | ||||||||||||||||||||||||||||
Cruise report | (0.81 MB) | ||||||||||||||||||||||||||||
Ocean/sea areas | |||||||||||||||||||||||||||||
General | North East Atlantic Ocean (limit 40W) | ||||||||||||||||||||||||||||
Specific | Mid-Atlantic (N) | ||||||||||||||||||||||||||||
Measurements | |||||||||||||||||||||||||||||
Physical oceanography | |||||||||||||||||||||||||||||
Surface measurements underway (T,S) | Quantity: track kilometres = 2222.4 | ||||||||||||||||||||||||||||
Bathythermograph | Quantity: number of profiles = 41 | ||||||||||||||||||||||||||||
CTD stations | Quantity: number of stations = 6 | ||||||||||||||||||||||||||||
Chemical oceanography | |||||||||||||||||||||||||||||
Oxygen | Quantity: number of stations = 3 | ||||||||||||||||||||||||||||
Biology and fisheries | |||||||||||||||||||||||||||||
Zooplankton | Quantity: number of stations = 6 Description: survey:taxonomy,biomass determination | ||||||||||||||||||||||||||||
Nekton | Quantity: number of stations = 6 | ||||||||||||||||||||||||||||
Gear research | Quantity: number of deployments = 1 | ||||||||||||||||||||||||||||
Data held at BODC | |||||||||||||||||||||||||||||
Series/Profiles | |||||||||||||||||||||||||||||
6 CTD/STD cast | Dissolved oxygen parameters in the water column Vertical spatial coordinates Salinity of the water column Temperature of the water column Electrical conductivity of the water column Dissolved oxygen parameters in the water column Vertical spatial coordinates Salinity of the water column Temperature of the water column Electrical conductivity of the water column
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