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BODC Cruise Metadata Report for RRS Discovery (74E3) cruise D200

Introduction

This report collates information from the BODC cruise inventory and oceanographic databases. It presents

Cruise Inventory Information

Long name RRS Discovery (74E3) cruise D200
Short name D200
Objectives and Narrative 1. To make direct measurements of the flow of deep and bottom waters passing eastwards from the Enderby Abyssal Plain to the Southern Indian Ocean via deep topographic daps to the northeast and southeast of the Kerguelen Plateau. Specifically, to lay two main arrays of current meters with 10 moorings (42 current meters) and 2 Bottom Pressure Recorders in the main gap between Crozet and Kerguelen, supplemented with a mooring in the deep cleft immediately to the west of Crozet Island, and a further 5 moorings in the Princess Elizabeth Trough between the Kerguelen Plateau and Antarctica.
2. To extend two of the moorings of the main Crozet-Kerguelen array up into the near surface layers to aid the subsequent SWINDEX investigation into the interactions of the Agulhas and Antarctic Circumpolar Currents.
3. To use a range of tracers including the CFCs 10, 11, 12, 113, inorganic nutrients, dissolved oxygen and oxygen and hydrogen isotopes (indicating meltwater content) to partition the deep throughflow into its constituent water masses and to identify these as to source using a widely-spaced set of upstream measurements.
4. To make discrete measurements of CO2 partial pressure in seawater, total seawater CO2 content (TCO2) and appropriate measures of biological activity throughout the cruise-track as a BOFS/PRIME component of the BAS Antarctic Special Topic, and as a necessary determinant of WOCE.
5. To make measurements of biogenic dimethylsulphide (DMS) and its precursor (DMSP) at regular intervals throughout the ship's track, as a component programme of the BAS Antarctic Special Topic.
6. To monitor a suite of discontinuous and continuous environmental variables throughout the cruise, including bathymetry from PES, XBT ADCP, multimet, wave recorder and thermosalinograph.
7. To use a range of satellite-derived ice and weather intelligence where possible and appropriate.
All these objectives were met in full with the exception of number 4.
Ship RRS Discovery
Departure Port Cape Town, South Africa
Departure Date 1993-02-06
Arrival Port Cape Town, South Africa
Arrival Date 1993-03-18
Principal Scientist(s) Robert R Dickson (Ministry of Agriculture, Fisheries and Food Lowestoft Fisheries Laboratory)
Responsible Organisation
Associated Project(s) ADOX/WOCE
IHB Sea Areas Visited Indian Ocean, South East Atlantic Ocean (limit 20W)
Marsden Squares Visited 441/442/473/474/475/476/478/508/509/513/514/543/544/546/547/548/549
Work Area Description Southern Ocean
Work Area Bounding Polygon 70S,10E; 30S,10E; 30S,90E; 70S,90E; 70S,10E
Southern Limit 70S
Northern Limit 30S
Western Limit 10E
Eastern Limit 90E

Cruise Inventory Datasets

Physical oceanography  
Bathythermograph Quantity: number of profiles = 138
Description:  
CTD stations Quantity: number of stations = 31
Description:  
Current meters Quantity: number of stations = 16
Description: 57 cms deployed  
Current profiler (eg ADCP) Quantity: activity duration in days = 40
Description: shipborne ADCP  
Sea level (inc. bot. press., inverted echosounder) Quantity: number of stations = 2
Description: 2 deployed  
Surface measurements underway (T,S) Quantity: activity duration in days = 40
Description:  
Chemical oceanography  
Carbon dioxide Quantity: activity duration in days = 40
Description: cont. pCO2  
Carbon dioxide Description: TCO2  
Isotopes Quantity: number of samples = 690
Description: oxygen and hydrogen isotopes  
Nitrate Quantity: number of stations = 31
Description: 652 samples  
Nitrate Quantity: number of samples = 269
Description: surface water samples  
Other chemical oceanographic measurements Quantity: number of stations = 31
Description: CFC12, CFC11, CFC113, CFC10, CCl4  
Other chemical oceanographic measurements Description: DMS and DMSP  
Oxygen Quantity: number of stations = 31
Description: 664 samples  
Phosphate Quantity: number of stations = 31
Description: 652 samples, also 269 surface samples  
Silicate Quantity: number of stations = 31
Description: 652 samples, also 269 surface samples  
Contamination  
Trace metals Quantity: number of samples = 94
Description: Cadmium  
Meteorology  
Other meteorological measurements Quantity: activity duration in days = 40
Description: wind,pressure,air temp, radiation,irradiance,lw radiation,wave height  
Routine standard measurements Quantity: activity duration in days = 40
Description: synoptic observations by ship's officers  

Cruise Inventory Mooring/Buoy Operations

Latitude Longitude Data type Description
45° 25' S 47° 58' E Current meters 2 meters deployed
64° 49' S 85° 7' E Current meters 2 meters deployed
48° 34' S 61° 30' E Current meters 2 meters deployed
63° 3' S 83° 34' E Current meters 2 meters deployed
48° 22' S 60° 28' E Current meters 3 meters deployed
63° 55' S 84° 18' E Current meters 3 meters deployed
64° 22' S 84° 40' E Current meters 3 meters deployed
46° 49' S 53° 19' E Current meters 3 meters deployed
48° 0' S 58° 37' E Current meters 3 meters deployed
63° 30' S 83° 55' E Current meters 3 meters deployed
48° 10' S 59° 37' E Current meters 4 meters deployed
47° 24' S 55° 36' E Current meters 4 meters deployed
47° 1' S 54° 4' E Current meters 4 meters deployed
47° 36' S 56° 48' E Current meters 4 meters deployed
47° 7' S 55° 6' E Current meters 7 meters deployed
47° 45' S 58° 1' E Current meters 8 meters deployed
46° 52' S 53° 28' E Sea level (inc. bot. press., inverted echosounder) 1 bottom pressure recorder deployed
48° 34' S 61° 27' E Sea level (inc. bot. press., inverted echosounder) 1 bottom pressure recorder deployed

Summary of BODC Data Holdings for the Cruise

National Oceanographic Database

Summary

# Series Instrument Description Parameters
26 Bottle station Nitrate concentration parameters in the water column
Phosphate concentration parameters in the water column
Quality control flags
Reference numbers
Silicate concentration parameters in the water column
Vertical spatial coordinates
25 CTD/STD cast Density of the water column
Dissolved oxygen parameters in the water column
Salinity of the water column
Temperature of the water column
Transmittance and attenuance of the water column
Vertical spatial coordinates
1 Single-beam echosounder Bathymetry and Elevation
Date and time
Horizontal spatial co-ordinates

Note: Parameter terms are taken from the BODC Parameter Discovery Vocabulary XML (SKOS)

Full List

BODC Reference Instrument Description Date/Time Location  
582157 Single-beam echosounder 1993-02-06 18:46Z to 1993-03-06 12:56Z 65° 9' S to 34° 32' S; 17° 27' E to 85° 25' E Click for more
1004698 CTD/STD cast 1993-02-11 11:09Z 52° 0' S, 17° 30' E Click for more
1004705 CTD/STD cast 1993-02-12 09:06Z 54° 30' S, 19° 21' E Click for more
1004717 CTD/STD cast 1993-02-13 07:40Z 56° 15' S, 21° 7' E Click for more
1004729 CTD/STD cast 1993-02-14 04:19Z 58° 2' S, 23° 4' E Click for more
1004730 CTD/STD cast 1993-02-14 18:17Z 59° 40' S, 24° 54' E Click for more
1004742 CTD/STD cast 1993-02-16 04:13Z 62° 26' S, 28° 42' E Click for more
1004754 CTD/STD cast 1993-02-17 07:25Z 64° 28' S, 32° 27' E Click for more
1004766 CTD/STD cast 1993-02-20 06:30Z 64° 40' S, 58° 10' E Click for more
1004778 CTD/STD cast 1993-02-23 08:05Z 62° 10' S, 83° 16' E Click for more
1004791 CTD/STD cast 1993-02-23 13:27Z 62° 45' S, 83° 28' E Click for more
1004809 CTD/STD cast 1993-02-23 23:05Z 63° 21' S, 83° 55' E Click for more
1004810 CTD/STD cast 1993-02-24 14:31Z 64° 10' S, 84° 34' E Click for more
1004822 CTD/STD cast 1993-02-24 23:02Z 64° 37' S, 84° 59' E Click for more
1004834 CTD/STD cast 1993-02-25 07:03Z 65° 5' S, 85° 19' E Click for more
1004846 CTD/STD cast 1993-02-25 23:44Z 63° 42' S, 84° 9' E Click for more
1004858 CTD/STD cast 1993-03-04 15:29Z 48° 28' S, 60° 58' E Click for more
1004871 CTD/STD cast 1993-03-05 14:10Z 48° 16' S, 60° 1' E Click for more
1004883 CTD/STD cast 1993-03-05 22:44Z 48° 4' S, 59° 9' E Click for more
1004895 CTD/STD cast 1993-03-06 17:32Z 47° 52' S, 58° 13' E Click for more
1004902 CTD/STD cast 1993-03-07 00:45Z 47° 40' S, 57° 18' E Click for more
1004914 CTD/STD cast 1993-03-08 18:28Z 47° 17' S, 55° 17' E Click for more
1004926 CTD/STD cast 1993-03-09 19:02Z 46° 54' S, 53° 37' E Click for more
1004938 CTD/STD cast 1993-03-10 01:24Z 47° 7' S, 54° 33' E Click for more
1004951 CTD/STD cast 1993-03-10 13:33Z 46° 46' S, 53° 7' E Click for more
1004963 CTD/STD cast 1993-03-11 14:42Z 45° 24' S, 47° 58' E Click for more
1298117 Bottle station 1993-02-11 12:14Z 52° 0' S, 17° 30' E Click for more
1298129 Bottle station 1993-02-12 10:36Z 54° 30' S, 19° 21' E Click for more
1298130 Bottle station 1993-02-13 09:29Z 56° 15' S, 21° 7' E Click for more
1298142 Bottle station 1993-02-14 06:32Z 58° 2' S, 23° 4' E Click for more
1298154 Bottle station 1993-02-14 20:05Z 59° 40' S, 24° 54' E Click for more
1298166 Bottle station 1993-02-16 06:00Z 62° 26' S, 28° 42' E Click for more
1298178 Bottle station 1993-02-17 04:17Z 64° 28' S, 32° 27' E Click for more
1298191 Bottle station 1993-02-17 08:20Z 64° 28' S, 32° 27' E Click for more
1298209 Bottle station 1993-02-20 08:07Z 64° 40' S, 58° 10' E Click for more
1298210 Bottle station 1993-02-23 09:11Z 62° 10' S, 83° 16' E Click for more
1298222 Bottle station 1993-02-23 14:38Z 62° 45' S, 83° 28' E Click for more
1298234 Bottle station 1993-02-24 00:34Z 63° 21' S, 83° 55' E Click for more
1298246 Bottle station 1993-02-24 16:08Z 64° 10' S, 84° 34' E Click for more
1298258 Bottle station 1993-02-25 00:46Z 64° 37' S, 84° 59' E Click for more
1298271 Bottle station 1993-02-25 08:18Z 65° 5' S, 85° 19' E Click for more
1298283 Bottle station 1993-02-26 01:02Z 63° 42' S, 84° 9' E Click for more
1298295 Bottle station 1993-03-04 17:25Z 48° 28' S, 60° 58' E Click for more
1298302 Bottle station 1993-03-05 16:07Z 48° 16' S, 60° 1' E Click for more
1298314 Bottle station 1993-03-06 00:36Z 48° 4' S, 59° 9' E Click for more
1298326 Bottle station 1993-03-06 19:15Z 47° 52' S, 58° 13' E Click for more
1298338 Bottle station 1993-03-07 02:25Z 47° 40' S, 57° 18' E Click for more
1298351 Bottle station 1993-03-08 19:59Z 47° 17' S, 55° 17' E Click for more
1298363 Bottle station 1993-03-09 20:21Z 46° 54' S, 53° 37' E Click for more
1298375 Bottle station 1993-03-10 03:00Z 47° 7' S, 54° 33' E Click for more
1298387 Bottle station 1993-03-10 14:37Z 46° 46' S, 53° 7' E Click for more
1298399 Bottle station 1993-03-11 15:59Z 45° 24' S, 47° 58' E Click for more

Project Database

# Events Gear Type Parameters Held
135 Expendable Bathythermograph Temperature of the water column
110 Sample taken from ship's non-toxic supply Organosulphur and organoselenium species concentration parameters in water bodies
Chlorophyll pigment concentrations in water bodies
Phaeopigment concentrations in the water column
6409 Shipborne Acoustic Doppler Current Profile
27 CTD frame plus rosette sampler
Transmittance and attenuance of the water column
Density of the water column
Stable isotopes in water bodies
Silicate concentration parameters in the water column
Other halocarbon concentrations in water bodies
Salinity of the water column
Chlorofluorocarbon concentrations in the water column
Nitrate concentration parameters in the water column
Temperature of the water column
Phosphate concentration parameters in the water column
Dissolved oxygen parameters in the water column

Note: Parameter terms are taken from the BODC Parameter Discovery Vocabulary XML (SKOS)

References

Track Charts

Track Chart

Reports

Cruise Report