Cruise inventory

RRS Charles Darwin CD59

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS Charles Darwin (74AB)
Cruise identifierCD59
Cruise period1991-05-18 — 1991-06-10
StatusCompleted
Port of departurePonta Delgada, Portugal
Port of returnBarry, United Kingdom
ObjectivesSurvey of northern half of proposed VIVALDI area.
The Vivaldi '91 trial combined the high spatial resolution of SeaSoar surveys with deep CTD stations spaced every 3 degrees of latitude on tracks 300km apart. These primary measurements were complemented by a shipboard acoustic Doppler current profiler, chlorofluorocarbon tracer chemistry, oxygen, nutrient and chlorophyll measurements, and mean surface meteorology.
The aims of Vivaldi are to:
- calculate seasonal upper ocean heat and fresh water budgets
- map isopycnic potential vorticity variations from the sub-tropical gyre to the subpolar gyre
- map interannual changes in the properties of water masses formed by deep convection
- calculate statistics of upper ocean parameters and air sea fluxes
- investigate the role of eddies.
Chief scientistHarry Leach (University of Liverpool Department of Earth Sciences)
ProjectVIVALDI UK WOCE
Coordinating bodyNERC CRP/UK WOCE
Cruise reportRRS Charles Darwin CD59 cruise report cd58_59.pdf — access key 'C' (1.96 MB) 
Ocean/sea areas 
GeneralNorth East Atlantic Ocean (limit 40W)
SpecificNorth Atlantic
Track chartsRRS Charles Darwin CD59 cruise track — trk3630.html
Measurements 
Physical oceanography 
Surface measurements underway (T,S)Quantity: track kilometres = 6112
CTD stationsQuantity: number of stations = 21
Subsurface temperature and salinity measurementsQuantity: track kilometres = 6112
Description: SeaSoar
Transparency (eg transmissometer)Quantity: number of stations = 18
Optics (eg underwater light levels)Quantity: track kilometres = 6112
Description: SeaSoar, downwelling PAR
Geochemical tracers (eg freons)Quantity: number of stations = 17
Description: CFC-11, CFC-12, CFC-13
Current profiler (eg ADCP)Quantity: track kilometres = 6112
Description: Shipborne ADCP
Chemical oceanography 
OxygenQuantity: number of stations = 21
PhosphateQuantity: number of stations = 18
PhosphateQuantity: track kilometres = 6112
Description: underway surface sampling from non-toxic supply at half hourly intervals
NitrateQuantity: number of stations = 18
NitrateQuantity: track kilometres = 6112
Description: surface underway sampling from non-toxic supply at half hourly intervals
SilicateQuantity: number of stations = 18
SilicateQuantity: track kilometres = 6112
Description: surface underway sampling from non-toxic supply at half hourly intervals
Biology and fisheries 
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: track kilometres = 6112
Description: surface underway
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: number of samples = 18
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: track kilometres = 6112
Description: SeaSoar with Aquatrak fluorometer
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: number of samples = 18
Description: samples
PhytoplanktonQuantity: number of samples = 17
ZooplanktonQuantity: number of hauls = 18
Description: 55cm zooplankton net lowered to 100m after each CTD
Pelagic bacteria/micro-organismsQuantity: number of samples = 107
Description: bacteria slides
Meteorology 
Incident radiationQuantity: track kilometres = 6112
Description: surface underway PAR
Routine standard measurementsQuantity: track kilometres = 6112
Description: Underway Met.
Geology and geophysics 
Single-beam echosoundingQuantity: track kilometres = 6112
Description: Simrad echosounder
Data held at BODC 
Series/Profiles 
31  Bottle station
Quality control flags
Chlorophyll pigment concentrations in water bodies
Silicate concentration parameters in the water column
Vertical spatial coordinates
Nitrate concentration parameters in the water column
Phaeopigment concentrations in the water column
Reference numbers
Phosphate concentration parameters in the water column
Quality control flags
Chlorophyll pigment concentrations in water bodies
Silicate concentration parameters in the water column
Vertical spatial coordinates
Nitrate concentration parameters in the water column
Phaeopigment concentrations in the water column
Reference numbers
Phosphate concentration parameters in the water column

BODC idDate/TimeLocationDoc.
12599421991-05-19 09:20 39° 0' 42" N  30° 25' 51" W  View metadata report for BODC series reference number 1259942
12599541991-05-20 08:41 41° 59' 50" N  30° 52' 22" W  View metadata report for BODC series reference number 1259954
12599661991-05-21 13:17 45° 0' 22" N  31° 27' 26" W  View metadata report for BODC series reference number 1259966
12599781991-05-22 15:17 48° 1' 19" N  32° 5' 52" W  View metadata report for BODC series reference number 1259978
12599911991-05-23 18:21 50° 44' 17" N  32° 50' 1" W  View metadata report for BODC series reference number 1259991
12600031991-05-24 23:59 53° 59' 15" N  33° 45' 13" W  View metadata report for BODC series reference number 1260003
12600151991-05-25 22:57 53° 59' 37" N  29° 11' 4" W  View metadata report for BODC series reference number 1260015
12600271991-05-27 02:51 51° 5' 22" N  28° 6' 51" W  View metadata report for BODC series reference number 1260027
12600391991-05-28 06:58 48° 0' 11" N  28° 31' 4" W  View metadata report for BODC series reference number 1260039
12600401991-05-29 08:57 48° 0' 1" N  24° 2' 39" W  View metadata report for BODC series reference number 1260040
12600521991-05-31 18:49 54° 0' 1" N  24° 34' 51" W  View metadata report for BODC series reference number 1260052
12600641991-06-01 16:11 53° 59' 52" N  20° 19' 33" W  View metadata report for BODC series reference number 1260064
12600761991-06-02 18:37 51° 0' 25" N  20° 38' 41" W  View metadata report for BODC series reference number 1260076
16872041991-05-19 09:20 39° 0' 42" N  30° 25' 51" W  View metadata report for BODC series reference number 1687204
16872161991-05-20 08:41 41° 59' 50" N  30° 52' 22" W  View metadata report for BODC series reference number 1687216
16872281991-05-21 13:17 45° 0' 22" N  31° 27' 26" W  View metadata report for BODC series reference number 1687228
16872411991-05-22 15:17 48° 1' 19" N  32° 5' 52" W  View metadata report for BODC series reference number 1687241
16872531991-05-23 18:21 50° 44' 17" N  32° 50' 1" W  View metadata report for BODC series reference number 1687253
16872651991-05-24 23:59 53° 59' 15" N  33° 45' 13" W  View metadata report for BODC series reference number 1687265
16872771991-05-25 22:57 53° 59' 37" N  29° 11' 4" W  View metadata report for BODC series reference number 1687277
16872891991-05-27 02:51 51° 5' 22" N  28° 6' 51" W  View metadata report for BODC series reference number 1687289
16872901991-05-28 06:58 48° 0' 11" N  28° 31' 4" W  View metadata report for BODC series reference number 1687290
16873081991-05-29 08:57 48° 0' 1" N  24° 2' 39" W  View metadata report for BODC series reference number 1687308
16873211991-05-30 12:31 50° 59' 25" N  24° 37' 15" W  View metadata report for BODC series reference number 1687321
16873331991-05-31 18:49 54° 0' 1" N  24° 34' 51" W  View metadata report for BODC series reference number 1687333
16873451991-06-01 16:11 53° 59' 52" N  20° 19' 33" W  View metadata report for BODC series reference number 1687345
16873571991-06-02 18:37 51° 0' 25" N  20° 38' 41" W  View metadata report for BODC series reference number 1687357
16873691991-06-04 07:30 48° 1' 54" N  19° 55' 36" W  View metadata report for BODC series reference number 1687369
16873701991-06-05 10:01 47° 58' 56" N  15° 56' 44" W  View metadata report for BODC series reference number 1687370
16873821991-06-06 17:03 51° 0' 28" N  15° 59' 43" W  View metadata report for BODC series reference number 1687382
16873941991-06-08 04:00 53° 59' 48" N  14° 59' 47" W  View metadata report for BODC series reference number 1687394
18  CTD/STD cast
Density of the water column
Transmittance and attenuance of the water column
Chlorophyll pigment concentrations in water bodies
Vertical spatial coordinates
Salinity of the water column
Temperature of the water column
Density of the water column
Transmittance and attenuance of the water column
Chlorophyll pigment concentrations in water bodies
Vertical spatial coordinates
Salinity of the water column
Temperature of the water column

BODC idDate/TimeLocationDoc.
9716861991-06-02 17:00 51° 0' 25" N  20° 38' 40" W  View metadata report for BODC series reference number 971686
9716981991-06-04 05:51 48° 1' 54" N  19° 55' 36" W  View metadata report for BODC series reference number 971698
9717051991-06-05 08:07 47° 58' 57" N  15° 56' 44" W  View metadata report for BODC series reference number 971705
9717171991-06-06 15:16 51° 0' 28" N  15° 59' 43" W  View metadata report for BODC series reference number 971717
9717291991-06-08 02:55 53° 59' 48" N  14° 59' 47" W  View metadata report for BODC series reference number 971729
9717301991-05-19 08:33 39° 0' 42" N  30° 25' 51" W  View metadata report for BODC series reference number 971730
9717421991-05-20 07:50 41° 59' 51" N  30° 52' 22" W  View metadata report for BODC series reference number 971742
9717541991-05-21 12:11 45° 0' 22" N  31° 27' 26" W  View metadata report for BODC series reference number 971754
9717661991-05-22 13:46 48° 1' 19" N  32° 5' 52" W  View metadata report for BODC series reference number 971766
9717781991-05-23 16:41 50° 44' 17" N  32° 50' 1" W  View metadata report for BODC series reference number 971778
9717911991-05-24 22:56 53° 59' 15" N  33° 45' 13" W  View metadata report for BODC series reference number 971791
9718091991-05-25 21:47 53° 59' 37" N  29° 11' 4" W  View metadata report for BODC series reference number 971809
9718101991-05-27 01:25 51° 5' 22" N  28° 6' 51" W  View metadata report for BODC series reference number 971810
9718221991-05-28 05:44 48° 0' 11" N  28° 31' 4" W  View metadata report for BODC series reference number 971822
9718341991-05-29 07:25 48° 0' 1" N  24° 2' 39" W  View metadata report for BODC series reference number 971834
9718461991-05-30 11:03 50° 59' 25" N  24° 37' 15" W  View metadata report for BODC series reference number 971846
9718581991-05-31 17:38 54° 0' 1" N  24° 34' 51" W  View metadata report for BODC series reference number 971858
9718711991-06-01 15:14 53° 59' 52" N  20° 19' 33" W  View metadata report for BODC series reference number 971871
1  Pumped water sample
Chlorophyll pigment concentrations in water bodies
Horizontal spatial co-ordinates
Phaeopigment concentrations in the water column
Date and time
Chlorophyll pigment concentrations in water bodies
Horizontal spatial co-ordinates
Phaeopigment concentrations in the water column
Date and time

BODC idDate/TimeLocationDoc.
16651161991-05-19 05:00  — 1991-06-08 01:13 38° 49' 16" N  33° 46' 27" W — 54° 1' 59" N  15° 2' 36" W  View metadata report for BODC series reference number 1665116
1  Single-beam echosounder
Bathymetry and Elevation
Horizontal spatial co-ordinates
Date and time
Bathymetry and Elevation
Horizontal spatial co-ordinates
Date and time

BODC idDate/TimeLocationDoc.
5822131991-05-18 10:29  — 1991-06-10 06:11:29 37° 42' 35" N  33° 47' 43" W — 54° 3' 12" N  3° 14' 27" W  View metadata report for BODC series reference number 582213
Discrete samples 
18  CTD frame plus rosette samplerDensity of the water column
Transmittance and attenuance of the water column
Chlorophyll pigment concentrations in water bodies
Silicate concentration parameters in the water column
Salinity of the water column
Chlorofluorocarbon concentrations in the water column
Nitrate concentration parameters in the water column
Temperature of the water column
Phaeopigment concentrations in the water column
Dissolved oxygen parameters in the water column
Phosphate concentration parameters in the water column
1184  Sample taken from ship's non-toxic supplyChlorophyll pigment concentrations in water bodies
Silicate concentration parameters in the water column
Salinity of the water column
Nitrate concentration parameters in the water column
Phaeopigment concentrations in the water column
Phosphate concentration parameters in the water column
1363  SeaSoar profile from gridded dataDensity of the water column
Visible waveband radiance and irradiance measurements in the water column
Chlorophyll pigment concentrations in water bodies
Salinity of the water column
Temperature of the water column