Cruise inventory

RV G A Reay GAR4/86

Cruise summary report

Cruise Info. 
Ship name (ship code)RV G A Reay (74GD)
Cruise identifierGAR4/86
Cruise period1986-06-18 — 1986-06-29
StatusCompleted
Port of departurePlymouth, United Kingdom
Port of returnPlymouth, United Kingdom
PurposeResearch
Objectives1. To recover two current meter rigs 097 and 098 deployed in November on the slopes at 500m.
2. To deploy two identical rigs in the same positions as 097 and 098 as part of a long term study into seasonal changes along the slopes.
3. To study mixing on the slopes and shelf-break using the RVS Neil Brown CTD referenced to a drogued dhan buoy.
4. In conjunction with the above expectected, zooplankton samples to be taken on station using vertical nets and the 2" hosing plus Flygt pump.
5. To measure sea surface temperature, salinity, chlorophyll 'a', transmission and inorganic nutrients continuously via the overside pump together with discrete samples of zooplankton.
6. To deploy three satellite tracked drifting buoys with sheet drogues at 47N/16W, 48N/16W and 49N/16W.
Chief scientistRobin D Pingree (Marine Biological Association of the UK)
Cruise reportRV G A Reay GAR4/86 cruise report ga_reay4_86.pdf — access key 'C' (0.15 MB) 
Ocean/sea areas 
GeneralNorth East Atlantic Ocean (limit 40W)
SpecificWestern Approaches and Bay of Biscay
Track chartsRV G A Reay GAR4/86 cruise track — ga_reay4_86track.pdf (00 MB) 
Measurements 
Physical oceanography 
Surface measurements underway (T,S)Quantity: track kilometres = 1482
BathythermographQuantity: number of profiles = 50
Description: mechanical
Water bottle stationsQuantity: number of stations = 30
Description: S surface only
CTD stationsQuantity: number of stations = 150
Transparency (eg transmissometer)Quantity: track kilometres = 1481.6
Current metersQuantity: 6
Description: recovered;7 months
Chemical oceanography 
NitrateQuantity: track kilometres = 1481.6
NitriteQuantity: track kilometres = 1481.6
SilicateQuantity: track kilometres = 1481.6
Biology and fisheries 
PhytoplanktonQuantity: track kilometres = 1481.6
Description: fluorescence
ZooplanktonQuantity: 150
Acoustic reflection on marine organisms.Quantity: track kilometres = 926