Cruise inventory

RRS Discovery D207

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS Discovery (74E3)
Cruise identifierD207
Cruise period1994-02-19 — 1994-03-31
StatusCompleted
Port of departureCape Town, South Africa
Port of returnPort Louis, Mauritius
Objectives1. To make measurements of the flow of deep and bottom waters passing eastward from the Weddell-Enderby Abyssal Plain to the Southern Indian Ocean via deep topographic gaps to the northeast and southeast of the Kerguelen Plateau. Specifically, to recover the two main current meter arrays deployed during Discovery 200 - an array of 10 moorings (42 current meters) and 2 bottom pressure gauges in the main gap between Crozet and Kerguelen, supplemented with a mooring in the deep cleft immediately west of Crozet Island, and a further 5 moorings (13 current meters) set in the Princess Elizabeth Trough between the Kerguelen Plateau and Antarctica.
2. To use a range of tracers, including the CFCs 10, 11, 12, 113, inorganic nutrients, dissolved oxygen and both oxygen and hydrogen isotopes (including meltwater content) to assist in partitioning the deep throughflow into its constituent watermasses, and to track the onward incursion of the AABW plume into the Indian Ocean.
3. To make discrete measurements of CO2 partial pressure in seawater, total seawater CO2 content and appropriate measures of biological activity throughout the cruise track as a BFOS/PRIME component of the BAS Antarctic Special Topic, and as a necessary determinant of WOCE.
4. To monitor a suite of discontinuous and continuous environmental variables throughout the cruise, including bathymetry from PES, XBT and ADCP, multimet, wave recorder, and thermosalinograph, and where possible to locate the major ocean frontal zones in this sector of the Southern Ocean.
5. To use a range of satellite-derived ice and weather intelligence where possible and appropriate.
6. To obtain water samples for heavy-metal analysis by Dr Frew.
Chief scientistRobert R Dickson (Ministry of Agriculture, Fisheries and Food Lowestoft Fisheries Laboratory)
ProjectWOCE
Coordinating bodyIOC/WMO
Cruise reportRRS Discovery D207 cruise report d207.pdf — access key 'C' (3.83 MB) 
Ocean/sea areas 
GeneralIndian Ocean
SpecificSouthern Indian Ocean, Crozet-Kerguelen, Princess Eliz.Trough, Madagascar Basin
Track chartsRRS Discovery D207 cruise track — d207trk.pdf (0.13 MB)  RRS Discovery D207 cruise track — trk3945.html
Measurements 
Physical oceanography 
Surface measurements underway (T,S)Quantity: activity duration in days = 40
Description: cont.
BathythermographQuantity: number of profiles = 160
Description: XBTs
CTD stationsQuantity: number of stations = 33
Geochemical tracers (eg freons)Quantity: number of stations = 33
Description: CFC12, CFC11, CFC113, CFC10, CCl4
Current metersQuantity: number of stations = 14
Description: 46 cms recovered
Current profiler (eg ADCP)Quantity: activity duration in days = 40
Description: cont. shipborne ADCP records
Instrumented wave measurementsQuantity: activity duration in days = 40
Description: cont. wave recordings
Chemical oceanography 
OxygenQuantity: number of stations = 33
Carbon dioxideQuantity: activity duration in days = 40
Description: cont. pCO2 and TCO2
PhosphateQuantity: number of stations = 33
NitrateQuantity: number of stations = 33
NitriteQuantity: number of stations = 33
SilicateQuantity: number of stations = 33
IsotopesQuantity: number of stations = 33
Contamination 
Trace metalsQuantity: number of stations = 33
Meteorology 
Routine standard measurementsQuantity: activity duration in days = 40
Description: synoptic observations by ship's officals
Other meteorological measurementsQuantity: activity duration in days = 40
Description: cont. logging of wind,pressure,air temp,radiation,irradiance,waves
Moorings, landers, buoys 
Physical oceanography 
Current meters46° 25' 59" S  48° 0' 0" E — recover 2 meters, 352 days data
Current meters47° 25' 0" S  55° 36' 0" E — recover 4 meters, 1243 days data
Current meters48° 0' 0" S  58° 37' 59" E — recover 3 meters, 1095 days data
Current meters64° 22' 59" S  84° 42' 0" E — recover 3 meters, 786 days data
Current meters46° 49' 59" S  53° 19' 59" E — recover 3 meters, 717 days data
Current meters47° 1' 0" S  53° 4' 59" E — recover 4 meters, 1432 days data
Current meters47° 37' 0" S  56° 47' 59" E — recover 4 meters, 1139 days data
Current meters47° 45' 0" S  58° 2' 59" E — recover 7 meters, 2512 days data
Current meters48° 12' 0" S  59° 37' 59" E — recover 4 meters, 891 days data
Current meters48° 34' 59" S  61° 31' 0" E — recover 2 meters, 629 days data
Current meters64° 49' 0" S  85° 7' 0" E — recover 2 meters, 276 days data
Current meters63° 2' 59" S  83° 34' 59" E — recover 2 meters, 764 days data
Current meters63° 55' 59" S  84° 19' 0" E — recover 3 meters, 764 days data
Current meters63° 30' 0" S  83° 57' 0" E — recover 3 meters, 1125 days data
Sea level (inc. bot. press., inverted echosounder)46° 52' 0" S  53° 28' 0" E — recover 1 bottom pressure recorder, 365 days data
Data held at BODC 
Series/Profiles 
24  Bottle station
Quality control flags
Silicate concentration parameters in the water column
Vertical spatial coordinates
Nitrate concentration parameters in the water column
Phosphate concentration parameters in the water column
Reference numbers
Quality control flags
Silicate concentration parameters in the water column
Vertical spatial coordinates
Nitrate concentration parameters in the water column
Phosphate concentration parameters in the water column
Reference numbers

BODC idDate/TimeLocationDoc.
12994461994-02-24 19:41 49° 29' 52" S  41° 56' 21" E  View metadata report for BODC series reference number 1299446
12994581994-02-25 06:24 48° 28' 46" S  43° 6' 49" E  View metadata report for BODC series reference number 1299458
12994711994-02-25 16:09 47° 26' 41" S  44° 7' 1" E  View metadata report for BODC series reference number 1299471
12994831994-02-26 04:27 46° 38' 14" S  44° 59' 13" E  View metadata report for BODC series reference number 1299483
12994951994-02-27 18:48 43° 16' 46" S  50° 36' 55" E  View metadata report for BODC series reference number 1299495
12995021994-02-28 01:45 43° 12' 49" S  51° 33' 18" E  View metadata report for BODC series reference number 1299502
12995141994-02-28 10:24 43° 9' 22" S  53° 12' 45" E  View metadata report for BODC series reference number 1299514
12995261994-02-28 16:34 43° 9' 29" S  53° 59' 24" E  View metadata report for BODC series reference number 1299526
12995381994-03-01 01:23 43° 9' 38" S  54° 34' 8" E  View metadata report for BODC series reference number 1299538
12995511994-03-01 07:32 43° 11' 36" S  54° 29' 2" E  View metadata report for BODC series reference number 1299551
12995631994-03-01 13:15 43° 10' 39" S  55° 9' 3" E  View metadata report for BODC series reference number 1299563
12995751994-03-02 19:13 47° 7' 14" S  54° 32' 31" E  View metadata report for BODC series reference number 1299575
12995871994-03-03 16:20 46° 55' 5" S  53° 36' 47" E  View metadata report for BODC series reference number 1299587
12995991994-03-03 22:54 46° 45' 0" S  53° 5' 50" E  View metadata report for BODC series reference number 1299599
12996061994-03-04 19:10 47° 18' 30" S  55° 16' 24" E  View metadata report for BODC series reference number 1299606
12996181994-03-05 16:02 47° 40' 46" S  57° 35' 21" E  View metadata report for BODC series reference number 1299618
12996311994-03-07 09:38 48° 5' 24" S  59° 8' 28" E  View metadata report for BODC series reference number 1299631
12996431994-03-07 18:59 48° 16' 50" S  60° 0' 34" E  View metadata report for BODC series reference number 1299643
12996551994-03-27 18:21 29° 39' 43" S  53° 28' 57" E  View metadata report for BODC series reference number 1299655
12996671994-03-28 01:57 29° 19' 33" S  54° 10' 49" E  View metadata report for BODC series reference number 1299667
12996791994-03-28 08:52 28° 54' 30" S  54° 45' 14" E  View metadata report for BODC series reference number 1299679
12996801994-03-28 17:04 28° 31' 11" S  55° 29' 18" E  View metadata report for BODC series reference number 1299680
12996921994-03-29 00:48 28° 4' 53" S  56° 5' 14" E  View metadata report for BODC series reference number 1299692
12997111994-03-29 07:23 27° 30' 28" S  56° 8' 44" E  View metadata report for BODC series reference number 1299711
32  CTD/STD cast
Density of the water column
Vertical spatial coordinates
Salinity of the water column
Temperature of the water column
Dissolved oxygen parameters in the water column
Density of the water column
Vertical spatial coordinates
Salinity of the water column
Temperature of the water column
Dissolved oxygen parameters in the water column

BODC idDate/TimeLocationDoc.
10060291994-02-24 17:57 49° 29' 52" S  41° 56' 21" E  View metadata report for BODC series reference number 1006029
10060301994-02-25 04:43 48° 28' 46" S  43° 6' 49" E  View metadata report for BODC series reference number 1006030
10060421994-02-25 14:41 47° 26' 42" S  44° 7' 1" E  View metadata report for BODC series reference number 1006042
10060541994-02-26 03:05 46° 38' 14" S  44° 59' 13" E  View metadata report for BODC series reference number 1006054
10060661994-02-27 17:30 43° 16' 46" S  50° 36' 55" E  View metadata report for BODC series reference number 1006066
10060781994-02-28 00:17 43° 12' 49" S  51° 33' 17" E  View metadata report for BODC series reference number 1006078
10060911994-02-28 09:04 43° 9' 22" S  53° 12' 46" E  View metadata report for BODC series reference number 1006091
10061091994-02-28 15:00 43° 9' 29" S  53° 59' 24" E  View metadata report for BODC series reference number 1006109
10061101994-02-28 23:52 43° 9' 38" S  54° 34' 8" E  View metadata report for BODC series reference number 1006110
10061221994-03-01 05:59 43° 11' 36" S  54° 29' 3" E  View metadata report for BODC series reference number 1006122
10061341994-03-01 11:41 43° 10' 39" S  55° 9' 3" E  View metadata report for BODC series reference number 1006134
10061461994-03-02 17:41 47° 7' 14" S  54° 32' 31" E  View metadata report for BODC series reference number 1006146
10061581994-03-03 14:51 46° 55' 5" S  53° 36' 47" E  View metadata report for BODC series reference number 1006158
10061711994-03-03 21:41 46° 45' 0" S  53° 5' 50" E  View metadata report for BODC series reference number 1006171
10061831994-03-04 17:24 47° 18' 30" S  55° 16' 24" E  View metadata report for BODC series reference number 1006183
10061951994-03-05 14:12 47° 40' 46" S  57° 35' 21" E  View metadata report for BODC series reference number 1006195
10062021994-03-07 07:38 48° 5' 24" S  59° 8' 28" E  View metadata report for BODC series reference number 1006202
10062141994-03-07 17:17 48° 16' 50" S  60° 0' 34" E  View metadata report for BODC series reference number 1006214
10062261994-03-14 09:13 66° 2' 21" S  84° 33' 8" E  View metadata report for BODC series reference number 1006226
10062381994-03-14 12:56 65° 31' 54" S  84° 37' 53" E  View metadata report for BODC series reference number 1006238
10062511994-03-20 09:11 48° 34' 36" S  61° 26' 55" E  View metadata report for BODC series reference number 1006251
10062631994-03-22 04:03 47° 31' 22" S  56° 12' 0" E  View metadata report for BODC series reference number 1006263
10062751994-03-23 10:54 43° 9' 44" S  53° 33' 34" E  View metadata report for BODC series reference number 1006275
10062871994-03-23 21:51 43° 11' 5" S  54° 53' 48" E  View metadata report for BODC series reference number 1006287
10062991994-03-24 04:42 43° 11' 4" S  55° 41' 12" E  View metadata report for BODC series reference number 1006299
10063061994-03-24 12:37 43° 9' 55" S  56° 32' 59" E  View metadata report for BODC series reference number 1006306
10063181994-03-27 16:40 29° 39' 43" S  53° 28' 57" E  View metadata report for BODC series reference number 1006318
10063311994-03-28 00:10 29° 19' 33" S  54° 10' 49" E  View metadata report for BODC series reference number 1006331
10063431994-03-28 07:06 28° 54' 29" S  54° 45' 14" E  View metadata report for BODC series reference number 1006343
10063551994-03-28 15:21 28° 31' 11" S  55° 29' 18" E  View metadata report for BODC series reference number 1006355
10063671994-03-28 23:07 28° 4' 53" S  56° 5' 14" E  View metadata report for BODC series reference number 1006367
10063791994-03-29 05:32 27° 30' 28" S  56° 8' 44" E  View metadata report for BODC series reference number 1006379
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.
5821821994-02-21 06:32  — 1994-03-31 03:14 66° 2' 44" S  24° 56' 52" E — 20° 7' 0" S  85° 9' 50" E  View metadata report for BODC series reference number 582182
Discrete samples 
32  CTD frame plus rosette samplerStable isotope enrichment in the water column
Density of the water column
Silicate concentration parameters in the water column
Other halocarbon concentrations in water bodies
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
141  Expendable BathythermographTemperature of the water column
661  Sample taken from ship's non-toxic supplySalinity of the water column