Cruise inventory

FRV Explorer 7/77

Cruise summary report

Cruise Info. 
Ship name (ship code)FRV Explorer (74EX)
Cruise identifier7/77
Cruise period1977-08-09 — 1977-08-31
StatusCompleted
Port of departureAberdeen, United Kingdom
Port of returnAberdeen, United Kingdom
PurposeResearch
Objectives1) To deploy current meter moorings in the northern North Sea and Firth of Forth
2) To conduct hydrobiological surveys in the northern North Sea and Firth of Forth (including propsed sludge dump grounds)

''Explorer'' lay in anchor in Aberdeen bay for 20 hours whilst en route to St Abbs Head to carry out urgent repairs.The ship called at Aberdeen on the 19/08/1977 till the 20/08/1977. ''Explorer'' returned to Aberdeen earlier than planned due to the state of her condensing system
Chief scientistHarry D Dooley (Department of Agriculture and Fisheries for Scotland Aberdeen Marine Laboratory)
Cruise reportFRV Explorer 7/77 cruise report explorer7_77.pdf — access key 'C' (0.87 MB) 
Ocean/sea areas 
GeneralIrish Sea and St. George's Channel
North East Atlantic Ocean (limit 40W)
SpecificPeterhead, St Abbs Head, Orkney, Fidra, Moray Firth, Fair Isle, Bell Rock
Track chartsFRV Explorer 7/77 cruise track — trk1973.html
Measurements 
Physical oceanography 
Surface measurements underway (T,S)
Water bottle stationsQuantity: number of stations = 100
Transparency (eg transmissometer)Quantity: 40
Current metersQuantity: 7
Description: 20 days
Chemical oceanography 
PhosphateQuantity: 25
NitrateQuantity: 98
SilicateQuantity: 25
Biology and fisheries 
Primary productivityQuantity: 7
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: 75