Cruise inventory

RRS Charles Darwin CD58

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS Charles Darwin (74AB)
Cruise identifierCD58
Cruise period1991-04-25 — 1991-05-16
StatusCompleted
Port of departureBarry, United Kingdom
Port of returnPonta Delgada, Portugal
ObjectivesInstrument testing and survey of the southern half of the 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 scientistRaymond T Pollard (James Rennell Centre for Ocean Circulation)
ProjectVIVALDI UK WOCE
Coordinating bodyNERC CRP/UK WOCE
Cruise reportRRS Charles Darwin CD58 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 CD58 cruise track — trk3629a.html RRS Charles Darwin CD58 cruise track — trk3629b.html
Measurements 
Physical oceanography 
Surface measurements underway (T,S)Quantity: track kilometres = 5660
CTD stationsQuantity: number of stations = 19
Subsurface temperature and salinity measurementsQuantity: track kilometres = 5660
Description: SeaSoar
Transparency (eg transmissometer)Quantity: number of stations = 19
Optics (eg underwater light levels)Quantity: track kilometres = 5660
Description: SeaSoar, downwelling PAR
Geochemical tracers (eg freons)Quantity: number of stations = 16
Description: CFC-11, CFC-12, CFC-13
Current profiler (eg ADCP)Quantity: track kilometres = 5660
Description: Shipborne ADCP
Chemical oceanography 
OxygenQuantity: number of stations = 19
PhosphateQuantity: track kilometres = 5660
Description: underway surface sampling from non-toxic supply at half hourly intervals
PhosphateQuantity: number of stations = 17
NitrateQuantity: track kilometres = 5660
Description: surface underway sampling from non-toxic supply at half hourly intervals
NitrateQuantity: number of stations = 17
SilicateQuantity: track kilometres = 5660
Description: surface underway sampling from non-toxic supply at half hourly intervals
SilicateQuantity: number of stations = 17
Alkalinity
pH
Biology and fisheries 
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: track kilometres = 5660
Description: SeaSoar with Aquatrak fluorometer
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: number of samples = 19
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: track kilometres = 5660
Description: surface underway
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: number of samples = 17
Description: samples
PhytoplanktonQuantity: number of samples = 15
ZooplanktonQuantity: number of hauls = 19
Description: 55cm zooplankton net lowered to 100m after each CTD
Pelagic bacteria/micro-organismsQuantity: number of samples = 25
Description: bacteria slides prepared along 20W section
Meteorology 
Incident radiationQuantity: track kilometres = 5660
Description: surface underway PAR
Routine standard measurementsQuantity: track kilometres = 5660
Description: Underway Met.
Geology and geophysics 
Single-beam echosoundingQuantity: track kilometres = 5660
Description: Simrad echosounder
Data held at BODC 
Series/Profiles 
33  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
Phosphate concentration parameters in the water column
Phaeopigment concentrations in the water column
Reference numbers
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
Phosphate concentration parameters in the water column
Phaeopigment concentrations in the water column
Reference numbers

BODC idDate/TimeLocationDoc.
12601931991-05-06 20:33 39° 0' 15" N  19° 57' 23" W  View metadata report for BODC series reference number 1260193
12602001991-05-07 20:45 38° 59' 12" N  23° 28' 17" W  View metadata report for BODC series reference number 1260200
12602121991-05-08 22:41 42° 1' 6" N  23° 37' 45" W  View metadata report for BODC series reference number 1260212
12602241991-05-10 01:45 44° 59' 41" N  23° 48' 25" W  View metadata report for BODC series reference number 1260224
12602361991-05-11 03:55 48° 0' 3" N  24° 1' 29" W  View metadata report for BODC series reference number 1260236
12602481991-05-13 12:08 45° 5' 33" N  27° 38' 10" W  View metadata report for BODC series reference number 1260248
12602611991-05-14 14:34 41° 59' 3" N  27° 5' 57" W  View metadata report for BODC series reference number 1260261
12602731991-05-15 15:01 39° 10' 7" N  26° 43' 19" W  View metadata report for BODC series reference number 1260273
12600881991-04-27 05:13 47° 29' 57" N  11° 59' 42" W  View metadata report for BODC series reference number 1260088
12601071991-04-28 05:37 44° 53' 27" N  12° 16' 51" W  View metadata report for BODC series reference number 1260107
12601191991-04-29 08:54 42° 0' 5" N  12° 44' 50" W  View metadata report for BODC series reference number 1260119
12601201991-04-30 05:20 41° 58' 32" N  16° 22' 11" W  View metadata report for BODC series reference number 1260120
12601321991-05-01 08:50 44° 59' 18" N  16° 11' 16" W  View metadata report for BODC series reference number 1260132
12601441991-05-02 11:02 48° 1' 24" N  15° 59' 8" W  View metadata report for BODC series reference number 1260144
12601561991-05-03 11:07 48° 0' 30" N  19° 59' 42" W  View metadata report for BODC series reference number 1260156
12601681991-05-04 14:56 44° 59' 39" N  20° 0' 36" W  View metadata report for BODC series reference number 1260168
12601811991-05-05 17:16 42° 1' 22" N  19° 56' 9" W  View metadata report for BODC series reference number 1260181
16687161991-04-28 05:37 44° 53' 27" N  12° 16' 51" W  View metadata report for BODC series reference number 1668716
16687281991-04-29 08:54 42° 0' 5" N  12° 44' 50" W  View metadata report for BODC series reference number 1668728
16687411991-04-30 05:20 41° 58' 32" N  16° 22' 11" W  View metadata report for BODC series reference number 1668741
16687531991-05-01 08:50 44° 59' 18" N  16° 11' 16" W  View metadata report for BODC series reference number 1668753
16687651991-05-02 11:02 48° 1' 24" N  15° 59' 8" W  View metadata report for BODC series reference number 1668765
16687771991-05-03 11:07 48° 0' 30" N  19° 59' 42" W  View metadata report for BODC series reference number 1668777
16687891991-05-04 14:56 44° 59' 39" N  20° 0' 36" W  View metadata report for BODC series reference number 1668789
16687901991-05-05 17:16 42° 1' 22" N  19° 56' 9" W  View metadata report for BODC series reference number 1668790
16688081991-05-06 20:33 39° 0' 15" N  19° 57' 23" W  View metadata report for BODC series reference number 1668808
16688211991-05-07 20:45 38° 59' 12" N  23° 28' 17" W  View metadata report for BODC series reference number 1668821
16688331991-05-08 22:41 42° 1' 6" N  23° 37' 45" W  View metadata report for BODC series reference number 1668833
16688451991-05-10 01:45 44° 59' 41" N  23° 48' 25" W  View metadata report for BODC series reference number 1668845
16688571991-05-11 03:55 48° 0' 3" N  24° 1' 29" W  View metadata report for BODC series reference number 1668857
16688691991-05-13 12:08 45° 5' 33" N  27° 38' 10" W  View metadata report for BODC series reference number 1668869
16688701991-05-14 14:34 41° 59' 3" N  27° 5' 57" W  View metadata report for BODC series reference number 1668870
16688821991-05-15 15:01 39° 10' 7" N  26° 43' 19" W  View metadata report for BODC series reference number 1668882
17  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.
9715081991-04-27 03:14 47° 29' 57" N  11° 59' 42" W  View metadata report for BODC series reference number 971508
9715211991-04-28 04:10 44° 53' 26" N  12° 16' 51" W  View metadata report for BODC series reference number 971521
9715331991-04-29 06:36 42° 0' 5" N  12° 44' 50" W  View metadata report for BODC series reference number 971533
9715451991-04-30 03:06 41° 58' 32" N  16° 22' 11" W  View metadata report for BODC series reference number 971545
9715571991-05-01 06:55 44° 59' 17" N  16° 11' 16" W  View metadata report for BODC series reference number 971557
9715691991-05-02 08:47 48° 1' 24" N  15° 59' 8" W  View metadata report for BODC series reference number 971569
9715701991-05-03 09:27 48° 0' 30" N  19° 59' 42" W  View metadata report for BODC series reference number 971570
9715821991-05-04 13:20 44° 59' 40" N  20° 0' 36" W  View metadata report for BODC series reference number 971582
9715941991-05-05 16:17 42° 1' 22" N  19° 56' 9" W  View metadata report for BODC series reference number 971594
9716011991-05-06 18:53 39° 0' 15" N  19° 57' 24" W  View metadata report for BODC series reference number 971601
9716131991-05-07 19:25 38° 59' 12" N  23° 28' 17" W  View metadata report for BODC series reference number 971613
9716251991-05-08 21:25 42° 1' 6" N  23° 37' 45" W  View metadata report for BODC series reference number 971625
9716371991-05-10 00:39 44° 59' 41" N  23° 48' 25" W  View metadata report for BODC series reference number 971637
9716491991-05-11 02:31 48° 0' 4" N  24° 1' 29" W  View metadata report for BODC series reference number 971649
9716501991-05-13 11:15 45° 5' 33" N  27° 38' 10" W  View metadata report for BODC series reference number 971650
9716621991-05-14 13:31 41° 59' 3" N  27° 5' 57" W  View metadata report for BODC series reference number 971662
9716741991-05-15 14:13 39° 10' 7" N  26° 43' 19" W  View metadata report for BODC series reference number 971674
2  Pumped water sample
Chlorophyll pigment concentrations in water bodies
Silicate concentration parameters in the water column
Horizontal spatial co-ordinates
Nitrate concentration parameters in the water column
Phosphate concentration parameters in the water column
Phaeopigment concentrations in the water column
Date and time
Chlorophyll pigment concentrations in water bodies
Silicate concentration parameters in the water column
Horizontal spatial co-ordinates
Nitrate concentration parameters in the water column
Phosphate concentration parameters in the water column
Phaeopigment concentrations in the water column
Date and time

BODC idDate/TimeLocationDoc.
13599671991-04-27 09:30  — 1991-05-12 23:30 38° 57' 32" N  28° 20' 8" W — 48° 36' 34" N  9° 23' 30" W  View metadata report for BODC series reference number 1359967
16762311991-04-27 17:05  — 1991-05-15 12:39 38° 57' 32" N  28° 20' 8" W — 48° 36' 34" N  9° 23' 30" W  View metadata report for BODC series reference number 1676231
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.
5822011991-04-26 02:42  — 1991-05-16 04:58:29 37° 53' 38" N  28° 20' 17" W — 49° 23' 23" N  8° 8' 49" W  View metadata report for BODC series reference number 582201
Discrete samples 
17  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
Alkalinity, acidity and pH of the water column
Chlorofluorocarbon concentrations in the water column
Salinity of the water column
Temperature of the water column
Nitrate concentration parameters in the water column
Dissolved oxygen parameters in the water column
Phosphate concentration parameters in the water column
Phaeopigment concentrations in the water column
2197  Sample taken from ship's non-toxic supplyPartial pressure (pCO2) and fugacity (fCO2) of carbon dioxide in the water column
Density of the water column
Chlorophyll pigment concentrations in water bodies
Silicate concentration parameters in the water column
Alkalinity, acidity and pH of the water column
Salinity of the water column
Total dissolved inorganic carbon (TCO2) concentration in the water column
Nitrate concentration parameters in the water column
Phosphate concentration parameters in the water column
Phaeopigment concentrations in the water column
1253  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