Cruise inventory

RV Lough Foyle LF/01/91

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Lough Foyle (74LG)
Cruise identifierLF/01/91
Cruise period1991-01-07 — 1991-01-09
StatusCompleted
Port of departureBelfast, United Kingdom
Port of returnBelfast, United Kingdom
PurposeResearch
Objectives1. To collect samples for determination of winter nutrient levels in the Northern
Irish Sea, North Channel and along the N. Coast of N. Ireland, including
transects to determine the nutrient/salinity ratio of Lough Foyle effluent water.
These samples and analyses form the N.I. contribution to the NORSAP
programme of winter 1990/91

2. To collect Day Grab samples at the 4 MPMMG coastal and offshore monitoring
sites selected for N. Ireland.

3. To repeat an earlier series of samples for analyses of differences between
samples taken by overside sampling and from the inboard clean seawater
supply.
Chief scientistRobert S Rosell (Department of Agriculture for Northern Ireland)
Cruise reportRV Lough Foyle LF/01/91 cruise report lf1_91.pdf — access key 'C' (0.11 MB) 
Ocean/sea areas 
GeneralInner Seas off the West Coast of Scotland
Irish Sea and St. George's Channel
SpecificThe Northern Irish Sea, the North Channel, Lough Foyle
Track chartsRV Lough Foyle LF/01/91 cruise track — lf1_91track.pdf (00 MB) 
Measurements 
Physical oceanography 
Surface measurements underway (T,S)Quantity: number of measurements = 17
Chemical oceanography 
PhosphateQuantity: number of stations = 17
Description: Samples collected for determination of winter nutrient levels.
NitrateQuantity: number of stations = 17
Description: Samples collected for determination of winter nutrient levels.
NitriteQuantity: number of stations = 17
Description: Samples collected for determination of winter nutrient levels.
SilicateQuantity: number of stations = 17
Description: Samples collected for determination of winter nutrient levels.
Contamination 
Suspended matterQuantity: number of stations = 17
Description: CTD/water sampling stations
Geology and geophysics 
GrabQuantity: number of samples = 8
Description: 6 successful grabs, one failed due to weather, one failed due to unsuitable substrate