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RRS Discovery D278
Cruise summary report
Cruise Info. | |
Ship name (ship code) | RRS Discovery (74E3) |
Cruise identifier | D278 |
Cruise period | 2004-03-19 — 2004-03-30 |
Status | Completed |
Port of departure | Freeport, Bahamas |
Port of return | Freeport, Bahamas |
Objectives | Principally a mooring deployment cruise in the western North Atlantic Ocean at 26.5degN - six moorings deployed. This was followed by a hydrographic survey at the Abaco Western Boundary Array during which sixteen CTD casts were measured. Ship returned to Freeport, Grand Bahama, where the cruise ended. |
Chief scientist | Stuart A Cunningham (Southampton Oceanography Centre) |
Project | RAPID |
Coordinating body | NERC |
Cruise report | (4.44 MB) |
Ocean/sea areas | |
General | North West Atlantic Ocean (limit 40W) |
Specific | North Atlantic western boundary |
Measurements | |
Physical oceanography | |
Surface measurements underway (T,S) | Quantity: activity duration in days = 11 Description: Sea surface hydrography underway measurements |
Surface measurements underway (T,S) | Quantity: activity duration in days = 11 Description: Autoflux. Measurement of air-sea C0**2 flux. |
Surface measurements underway (T,S) | Quantity: activity duration in days = 11 Description: Discrete sampling from the non-toxic water supply for calibration of underway temperature/salinity |
Water bottle stations | Quantity: activity duration in days = 11 Description: Discrete sampling from CTD bottles for calibration of the CTD salinity |
CTD stations | Quantity: number of stations = 16 Description: SeaBird 9/11. 16 CTD casts (including 1 test cast). Parameters: temperature, salinity, pressure, oxygen, fluorescence, beam attenuation, beam transmission. |
Current meters | Quantity: number of stations = 3 Description: Current meters |
Chemical oceanography | |
Carbon dioxide | Quantity: activity duration in days = 11 Description: Autoflux. Measurement of air-sea C0**2 flux. |
Meteorology | |
Routine standard measurements | Quantity: activity duration in days = 11 Description: Surfmet. Air temp, humidity, wind speed/direction, TIR, PAR, incoming long wave radiation. |
Moorings, landers, buoys | |
Physical oceanography | |
CTD stations | 26° 30' 1" N 76° 35' 57" W — Site: WBH2#1. Water depth: 4800m. Deployment: 25/03/2004. Instruments: 6 CTDs at 4350, 4450, 4550, 4700, 4750, 3837m; WLR at 4799m. |
CTD stations | 26° 30' 55" N 76° 44' 27" W — Site: WB2#1. Water depth: 3898m. Deployment: 26/03/2004. Instruments: 14 CTDs at 104, 154, 304, 400, 600, 800, 1000, 1200, 1600, 2000, 2500, 3000, 3500, 3733m; 7 current meters at 154, 400, 800, 1200, 2000, 3000, 3876m; WLR at 3895m. |
CTD stations | 26° 30' 1" N 76° 41' 53" W — Site: WBH1#1. Water depth: 4287m. Deployment: 25/03/2004. Instruments: 5 CTDs at 3837, 3937, 4037, 4187, 4237m; WLR at 4286m. |
CTD stations | 26° 29' 26" N 76° 2' 35" W — Site: WB4#1. Water depth: 4790m. Deployment: 23/03/2004. Instruments: 2 current meters at 50 and 4775m; MMP at 4475m; CTD at 4775m; WLR at 4789m. |
Current meters | 26° 29' 26" N 76° 2' 35" W — Site: WB4#1. Water depth: 4790m. Deployment: 23/03/2004. Instruments: 2 current meters at 50 and 4775m; MMP at 4475m; CTD at 4775m; WLR at 4789m. |
Current meters | 26° 30' 55" N 76° 44' 27" W — Site: WB2#1. Water depth: 3898m. Deployment: 26/03/2004. Instruments: 14 CTDs at 104, 154, 304, 400, 600, 800, 1000, 1200, 1600, 2000, 2500, 3000, 3500, 3733m; 7 current meters at 154, 400, 800, 1200, 2000, 3000, 3876m; WLR at 3895m. |
Current meters | 26° 30' 9" N 76° 48' 49" W — Site: WB1#1. Water depth: 1382m. Deployment: 27/03/2004. Instruments: 9 current meters at 50, 100, 250, 400, 600, 800, 1000, 1200, 1350m; WLR at 1380m. |
Current meters | 26° 30' 1" N 76° 41' 53" W — Site: WBH1#1. Water depth: 4287m. Deployment: 25/03/2004. Instruments: 5 CTDs at 3837, 3937, 4037, 4187, 4237m; WLR at 4286m. |
Current profiler (eg ADCP) | 26° 29' 26" N 76° 2' 35" W — Site: WB4#1. Water depth: 4790m. Deployment: 23/03/2004. Instruments: 2 current meters at 50 and 4775m; MMP at 4475m; CTD at 4775m; WLR at 4789m. |
Current profiler (eg ADCP) | 26° 32' 21" N 76° 52' 51" W — Site: WBADCP#1. Water depth: 395m. Deployment: 20/03/2004. Instruments: ADCP at 394m; WLR at 394m. |
Sea level (inc. bot. press., inverted echosounder) | 26° 29' 26" N 76° 2' 35" W — Site: WB4#1. Water depth: 4790m. Deployment: 23/03/2004. Instruments: 2 current meters at 50 and 4775m; MMP at 4475m; CTD at 4775m; WLR at 4789m. |
Sea level (inc. bot. press., inverted echosounder) | 26° 30' 55" N 76° 44' 27" W — Site: WB2#1. Water depth: 3898m. Deployment: 26/03/2004. Instruments: 14 CTDs at 104, 154, 304, 400, 600, 800, 1000, 1200, 1600, 2000, 2500, 3000, 3500, 3733m; 7 current meters at 154, 400, 800, 1200, 2000, 3000, 3876m; WLR at 3895m. |
Sea level (inc. bot. press., inverted echosounder) | 26° 30' 9" N 76° 48' 49" W — Site: WB1#1. Water depth: 1382m. Deployment: 27/03/2004. Instruments: 9 current meters at 50, 100, 250, 400, 600, 800, 1000, 1200, 1350m; WLR at 1380m. |
Sea level (inc. bot. press., inverted echosounder) | 26° 32' 21" N 76° 52' 51" W — Site: WBADCP#1. Water depth: 395m. Deployment: 20/03/2004. Instruments: ADCP at 394m; WLR at 394m. |
Sea level (inc. bot. press., inverted echosounder) | 26° 30' 1" N 76° 35' 57" W — Site: WBH2#1. Water depth: 4800m. Deployment: 25/03/2004. Instruments: 6 CTDs at 4350, 4450, 4550, 4700, 4750, 3837m; WLR at 4799m. |
Other physical oceanographic measurements | 26° 29' 26" N 76° 2' 35" W — Site: WB4#1. Water depth: 4790m. Deployment: 23/03/2004. Instruments: 2 current meters at 50 and 4775m; MMP at 4475m; CTD at 4775m; WLR at 4789m. |
Data held at BODC | Get data |
Discrete samples | |
16 CTD frame plus rosette sampler | Transmittance and attenuance of the water column Temperature of the water column Salinity of the water column Density of the water column Chlorophyll pigment concentrations in water bodies |
9 Instrument mooring | |
38 Sample taken from ship's non-toxic supply | Salinity of the water column |