Cruise inventory

FRV Explorer 3A/77

Cruise summary report

Cruise Info. 
Ship name (ship code)FRV Explorer (74EX)
Cruise identifier3A/77
Cruise period1977-04-13 — 1977-04-15
StatusCompleted
Port of departureAberdeen, United Kingdom
Port of returnAberdeen, United Kingdom
PurposeResearch
ObjectivesTo study the horizontal and vertical variability of salinity, temperature, chlorophyll, nitrate and zooplankton along a line from Rattray Head to Fladen

Severe weather conditions and time limitations prevented a course along the return line to Rattray from being maintained. Instruments were run continuously throughout, monitoring the pumped water supply from 3 m depth. ''Decca'' positions were recorded half hourly.
Chief scientistI E Baird (Department of Agriculture and Fisheries for Scotland Aberdeen Marine Laboratory)
Cruise reportFRV Explorer 3A/77 cruise report explorer3a_77.pdf — access key 'C' (1.32 MB) 
Ocean/sea areas 
GeneralNorth Sea
SpecificRattray Head, Fladen
Track chartsFRV Explorer 3A/77 cruise track — trk1968.html
Measurements 
Physical oceanography 
Surface measurements underway (T,S)Description: Temperatures at 3 m were between 5.8 degrees and 6.5 degrees.
Water bottle stationsQuantity: number of stations = 2
Chemical oceanography 
NitrateDescription: surface nitrates,continuous
NitrateQuantity: 12
NitriteQuantity: 12
Biology and fisheries 
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: 40
Description: also cont. surface
PhytoplanktonQuantity: 10
Description: distribution
Gear research