RRS Frederick Russell FR4A/83

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS Frederick Russell (74GG)
Cruise identifierFR4A/83
Cruise period1983-03-06 — 1983-03-14
Port of departurePlymouth, United Kingdom
Port of returnPlymouth, United Kingdom
Objectives1. To study the currents associated with the Shambles Bank.
2. To investigate features in the English Channel that are apparent in satellite images.
3. To investigate a possible density front between Dutch coastal waters and the waters of the central Southern Bight.
4. To determine the role this front or other vertical structure in the waters of the Southern Bight has on phytoplankton development and compare observations with results from the Continuous Plankton Recorder survey.
5. To quantify the role of turbidity in reducing the availability of light to the phytoplankton of the North Sea.
Chief scientistRobin D Pingree (Marine Biological Association of the UK)
Cruise reportRRS Frederick Russell FR4A/83 cruise report frederick_russell4a_83.pdf (0.09 MB) 
Ocean/sea areas 
GeneralEnglish Channel
North Sea
SpecificEnglish Channel
Track chartsRRS Frederick Russell FR4A/83 cruise track — trk2855.html
Physical oceanography 
Surface measurements underway (T,S)Quantity: track kilometres = 2963.2
BathythermographQuantity: number of profiles = 10
Water bottle stationsQuantity: number of stations = 4
Description: surface only
CTD stationsQuantity: number of stations = 10
Optics (eg underwater light levels)Quantity: track kilometres = 2963.2
Current metersQuantity: number of stations = 2
Description: No.of c.m. recovered;28 days
Chemical oceanography 
NitrateQuantity: track kilometres = 2963.2
NitriteQuantity: track kilometres = 2963.2
SilicateQuantity: track kilometres = 2963.2
Suspended matterQuantity: track kilometres = 2963.2
Biology and fisheries 
Primary productivityQuantity: number of stations = 5
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: number of samples = 100
Particulate organic matter (inc POC, PON)Quantity: number of samples = 100
PhytoplanktonQuantity: track kilometres = 2963.2
SestonQuantity: number of samples = 100