RRS Discovery D201

Cruise summary report

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Cruise Info.

Ship name (ship code)

RRS Discovery (74E3)

Cruise identifier

D201

Cruise period

1993-03-23 — 1993-05-03

Status

Completed

Port of departure

Cape Town, South Africa

Port of return

Cape Town, South Africa

Objectives

1. To observe the structure of the Antarctic Cicumpolar Current (ACC) between 28E and 50E and to infer whether any part of the ACC passes north of, or across the Crozet Plateau.
2. To observe the time dependence of currents along the crest of the Crozet Plateau to investigate whether any significant flow exists across the Plateau.
3. To examine the structure and changes in the structure of Subantarctic Mode Water and Antarctic Intermediate Water along a zonal section from 30E to 50E in the Subantarctic Zone.

Chief scientist

Raymond T Pollard (James Rennell Centre for Ocean Circulation)

Project

WOCE

Coordinating body

WOCE IPO

Cruise report

(3.60 MB)

Ocean/sea areas

General

Indian Ocean

Specific

South west Indian Ocean

Track charts

(0.04 MB)

Measurements

Physical oceanography

Surface measurements underway (T,S)

Quantity: activity duration in days = 40

Bathythermograph

Quantity: number of profiles = 107

Water bottle stations

Quantity: number of samples = 131
Description: bottle and surface salinity samples

CTD stations

Quantity: number of stations = 97
Description: CTD with oxygen sensor and transmissometer.

Transparency (eg transmissometer)

Quantity: activity duration in days = 40
Description: surface underway

Transparency (eg transmissometer)

Quantity: number of stations = 97
Description: CTD with oxygen sensor and transmissometer.

Geochemical tracers (eg freons)

Quantity: number of stations = 47
Description: CFC-12, CFC-11, CFC-113

Current meters

Quantity: number of stations = 8
Description: deployed

Current profiler (eg ADCP)

Quantity: activity duration in days = 40
Description: shipborne ADCP

Instrumented wave measurements

Quantity: activity duration in days = 40
Description: shipborne wave recorder

Chemical oceanography

Oxygen

Quantity: number of stations = 97

Oxygen

Quantity: number of stations = 97
Description: CTD with oxygen sensor and transmissometer.

Phosphate

Quantity: number of stations = 97

Nitrate

Quantity: number of stations = 97

Silicate

Quantity: number of stations = 97

Isotopes

Quantity: number of stations = 34
Description: oxygen isotope ratios

Biology and fisheries

Phytoplankton pigs (eg chlorophyll, fluorescence)

Quantity: activity duration in days = 40
Description: surface underway

Meteorology

Other meteorological measurements

Quantity: activity duration in days = 40
Description: anemometer, psychrometers, PAR + total irradiance sensors, pyrgeometer

Geology and geophysics

Single-beam echosounding

Quantity: activity duration in days = 40

Moorings, landers, buoys

Physical oceanography

Subsurface temperature measurements

45° 25' 12" S 47° 49' 41" E — mooring A depl 12 Apr 1993; 5 RCMs,1 thermistor chain; 2906m water depth

Subsurface temperature measurements

44° 33' 24" S 41° 19' 12" E — (+H72) mooring D depl 6 Apr 1993; 5 RCMs,1 thermistor chain; 2710m water depth

Current meters

44° 33' 24" S 41° 19' 12" E — (+H72) mooring D depl 6 Apr 1993; 5 RCMs,1 thermistor chain; 2710m water depth

Current meters

43° 23' 42" S 36° 3' 53" E — mooring F depl. 3 Apr 1993; 5 RCMs; 4262m water depth

Current meters

41° 51' 29" S 32° 49' 54" E — mooring G depl. 1 Apr 1993; 5 RCMs; 5900m water depth

Current meters

41° 6' 17" S 28° 52' 18" E — mooring H depl. 30 Mar 1993; 5 RCMs; 4430m water depth

Current meters

45° 25' 12" S 47° 49' 41" E — mooring A depl 12 Apr 1993; 5 RCMs,1 thermistor chain; 2906m water depth

Current meters

44° 27' 6" S 43° 27' 47" E — mooring C depl. 8 Apr 1993; 4 RCMs; 2379m water depth

Current meters

44° 44' 5" S 45° 45' 18" E — mooring B depl. 9 Apr 1993; 3 RCMs; 1614m water depth

Current meters

44° 37' 23" S 38° 59' 35" E — mooring E depl. 5 Apr 1993; 5 RCMs; 3403m water depth

Data held at BODC

Get data

Series/Profiles

95 Bottle station

Reference numbers
Phosphate concentration parameters in the water column
Vertical spatial coordinates
Silicate concentration parameters in the water column
Nitrate concentration parameters in the water column
Quality control flags

[Show series]

[Hide series]

BODC id	Date/Time	Location
1298511	1993-04-01 21:31	42° 12' 26" S 33° 32' 32" E
1298719	1993-04-08 00:04	44° 31' 19" S 42° 57' 51" E
1299004	1993-04-15 15:45	52° 49' 55" S 41° 19' 40" E
1299016	1993-04-16 05:09	53° 40' 26" S 40° 39' 34" E
1299028	1993-04-16 12:43	54° 30' 19" S 39° 58' 40" E
1299108	1993-04-18 12:23	50° 30' 58" S 40° 16' 52" E
1299133	1993-04-19 01:56	49° 29' 57" S 40° 19' 44" E
1299145	1993-04-19 08:26	49° 0' 15" S 40° 18' 54" E
1299237	1993-04-21 14:34	46° 53' 39" S 37° 10' 20" E
1299250	1993-04-22 01:48	46° 59' 57" S 35° 44' 53" E
1299317	1993-04-26 04:17	47° 29' 55" S 34° 10' 50" E
1298584	1993-04-04 12:43	44° 24' 31" S 38° 7' 16" E
1298639	1993-04-05 20:57	44° 34' 35" S 40° 48' 3" E
1298652	1993-04-06 17:10	45° 0' 6" S 41° 4' 53" E
1298781	1993-04-09 12:10	44° 54' 47" S 46° 18' 20" E
1298897	1993-04-12 11:28	45° 44' 16" S 47° 4' 57" E
1299225	1993-04-21 05:59	46° 51' 48" S 38° 46' 3" E
1299410	1993-04-28 19:45	43° 34' 18" S 31° 50' 47" E
1298443	1993-03-30 12:04	41° 6' 30" S 28° 53' 59" E
1298560	1993-04-04 01:08	43° 54' 0" S 37° 3' 55" E
1298688	1993-04-07 15:32	44° 33' 28" S 41° 53' 7" E
1298768	1993-04-09 04:15	44° 44' 15" S 45° 45' 19" E
1298836	1993-04-10 12:40	45° 35' 57" S 47° 36' 51" E
1298989	1993-04-14 21:42	51° 21' 22" S 42° 34' 3" E
1299065	1993-04-17 12:49	52° 29' 35" S 40° 8' 8" E
1299077	1993-04-17 17:55	51° 59' 48" S 40° 9' 21" E
1299170	1993-04-20 01:35	47° 29' 32" S 40° 19' 18" E
1299249	1993-04-21 20:03	47° 0' 1" S 36° 29' 8" E
1299298	1993-04-25 15:04	48° 37' 20" S 33° 37' 54" E
1299366	1993-04-27 11:43	45° 8' 50" S 34° 21' 31" E
1299434	1993-04-29 10:57	42° 44' 47" S 30° 33' 16" E
1298492	1993-04-01 13:36	41° 53' 3" S 32° 50' 26" E
1298523	1993-04-02 11:12	42° 47' 49" S 34° 47' 46" E
1298596	1993-04-04 18:38	44° 31' 13" S 38° 33' 45" E
1298627	1993-04-05 15:59	44° 35' 8" S 40° 11' 39" E
1298732	1993-04-08 15:48	44° 33' 6" S 44° 7' 6" E
1298941	1993-04-13 10:34	47° 46' 52" S 44° 53' 31" E
1298744	1993-04-08 20:03	44° 34' 49" S 44° 40' 19" E
1298756	1993-04-09 00:25	44° 39' 1" S 45° 15' 6" E
1298928	1993-04-13 02:26	46° 54' 49" S 45° 26' 36" E
1299089	1993-04-18 00:06	51° 29' 54" S 40° 11' 27" E
1299157	1993-04-19 14:18	48° 29' 35" S 40° 21' 10" E
1299194	1993-04-20 11:26	46° 36' 21" S 40° 23' 39" E
1299201	1993-04-20 15:51	46° 12' 15" S 40° 27' 48" E
1299286	1993-04-25 08:39	49° 10' 3" S 33° 25' 1" E
1299354	1993-04-27 05:14	45° 30' 49" S 35° 0' 4" E
1299422	1993-04-29 02:22	43° 13' 58" S 31° 20' 34" E
1298406	1993-03-27 19:38	36° 52' 27" S 21° 44' 11" E
1298455	1993-03-30 21:41	41° 14' 45" S 29° 39' 53" E
1298547	1993-04-03 10:54	43° 22' 31" S 36° 4' 44" E
1298572	1993-04-04 06:17	44° 9' 30" S 37° 34' 38" E
1298615	1993-04-05 11:00	44° 35' 23" S 39° 36' 43" E
1298720	1993-04-08 09:31	44° 27' 14" S 43° 30' 40" E
1298793	1993-04-09 16:46	45° 5' 9" S 46° 52' 45" E
1298800	1993-04-09 21:28	45° 15' 37" S 47° 28' 9" E
1298812	1993-04-10 01:58	45° 15' 3" S 47° 59' 27" E
1298848	1993-04-10 16:14	45° 35' 58" S 47° 53' 18" E
1299169	1993-04-19 20:21	47° 59' 10" S 40° 21' 18" E
1299213	1993-04-20 23:56	46° 56' 27" S 39° 33' 15" E
1299305	1993-04-25 21:33	48° 4' 35" S 33° 53' 15" E
1299330	1993-04-26 16:32	46° 29' 45" S 34° 44' 21" E
1299342	1993-04-26 22:43	46° 1' 58" S 34° 52' 8" E
1299378	1993-04-27 18:32	44° 50' 40" S 33° 50' 32" E
1298480	1993-03-31 21:42	41° 42' 38" S 31° 56' 20" E
1298535	1993-04-02 21:08	43° 9' 7" S 35° 27' 57" E
1298603	1993-04-05 01:24	44° 38' 46" S 38° 58' 36" E
1298676	1993-04-07 02:16	45° 42' 1" S 40° 33' 46" E
1298953	1993-04-13 18:20	48° 40' 27" S 44° 21' 24" E
1298861	1993-04-10 20:20	45° 36' 33" S 48° 8' 43" E
1298885	1993-04-11 05:05	45° 38' 1" S 49° 1' 12" E
1298990	1993-04-15 06:39	51° 59' 47" S 42° 0' 4" E
1299090	1993-04-18 06:48	51° 0' 7" S 40° 14' 32" E
1299121	1993-04-18 18:57	50° 0' 24" S 40° 17' 24" E
1299329	1993-04-26 10:25	46° 59' 56" S 34° 30' 13" E
1299409	1993-04-28 09:39	44° 13' 19" S 32° 49' 45" E
1298467	1993-03-31 05:24	41° 24' 46" S 30° 24' 56" E
1298559	1993-04-03 16:56	43° 39' 17" S 36° 35' 27" E
1298640	1993-04-06 06:21	44° 30' 32" S 41° 26' 56" E
1298707	1993-04-07 19:38	44° 32' 11" S 42° 25' 19" E
1298824	1993-04-10 07:55	45° 25' 45" S 47° 48' 21" E
1298873	1993-04-11 00:26	45° 37' 12" S 48° 34' 7" E
1298916	1993-04-12 18:57	45° 59' 54" S 46° 0' 2" E
1299053	1993-04-17 02:36	53° 29' 59" S 40° 4' 11" E
1299182	1993-04-20 06:56	46° 59' 53" S 40° 19' 43" E
1299391	1993-04-28 01:32	44° 34' 20" S 33° 21' 19" E
1298418	1993-03-28 09:10	37° 35' 36" S 22° 53' 24" E
1298431	1993-03-28 19:35	37° 59' 39" S 23° 36' 10" E
1298479	1993-03-31 13:06	41° 34' 13" S 31° 11' 5" E
1298664	1993-04-06 21:50	45° 21' 20" S 40° 52' 1" E
1298904	1993-04-12 15:07	45° 52' 4" S 46° 33' 7" E
1298965	1993-04-14 05:10	49° 33' 30" S 43° 44' 29" E
1298977	1993-04-14 13:52	50° 32' 32" S 43° 9' 12" E
1299041	1993-04-16 19:24	54° 0' 14" S 40° 2' 6" E
1299262	1993-04-22 07:13	47° 0' 2" S 34° 59' 46" E
1299274	1993-04-23 12:13	52° 1' 17" S 35° 0' 28" E

96 CTD/STD cast

Transmittance and attenuance of the water column
Salinity of the water column
Temperature of the water column
Vertical spatial coordinates
Dissolved oxygen parameters in the water column
Density of the water column

[Show series]

[Hide series]

BODC id	Date/Time	Location
1004987	1993-04-19 18:59	47° 59' 10" S 40° 21' 19" E
1005075	1993-04-21 18:35	47° 0' 1" S 36° 29' 8" E
1005118	1993-04-25 07:04	49° 10' 3" S 33° 25' 1" E
1005155	1993-04-26 02:43	47° 29' 55" S 34° 10' 50" E
1005420	1993-04-12 18:14	45° 59' 54" S 46° 0' 2" E
1005481	1993-04-14 12:17	50° 32' 32" S 43° 9' 11" E
1005493	1993-04-14 20:30	51° 21' 22" S 42° 34' 3" E
1005597	1993-04-17 22:45	51° 29' 54" S 40° 11' 27" E
1005628	1993-04-18 17:27	50° 0' 24" S 40° 17' 23" E
1005689	1993-03-28 17:28	37° 59' 39" S 23° 36' 10" E
1005769	1993-04-01 19:29	42° 12' 27" S 33° 32' 32" E
1005794	1993-04-02 18:57	43° 9' 7" S 35° 27' 56" E
1005825	1993-04-03 23:52	43° 54' 0" S 37° 3' 55" E
1006005	1993-04-08 19:21	44° 34' 49" S 44° 40' 19" E
1006017	1993-04-08 23:39	44° 39' 1" S 45° 15' 7" E
1005014	1993-04-20 10:19	46° 36' 21" S 40° 23' 40" E
1005038	1993-04-20 22:41	46° 56' 27" S 39° 33' 15" E
1005051	1993-04-21 04:42	46° 51' 47" S 38° 46' 3" E
1005180	1993-04-26 21:07	46° 1' 58" S 34° 52' 9" E
1005352	1993-04-10 14:54	45° 35' 58" S 47° 53' 18" E
1005419	1993-04-12 14:25	45° 52' 4" S 46° 33' 7" E
1005573	1993-04-17 11:47	52° 29' 35" S 40° 8' 7" E
1005641	1993-04-19 00:25	49° 29' 58" S 40° 19' 45" E
1005801	1993-04-03 09:00	43° 22' 31" S 36° 4' 44" E
1005862	1993-04-04 23:58	44° 38' 46" S 38° 58' 36" E
1005063	1993-04-21 13:20	46° 53' 39" S 37° 10' 20" E
1005260	1993-04-29 01:35	43° 13' 58" S 31° 20' 34" E
1005327	1993-04-10 00:50	45° 15' 2" S 47° 59' 27" E
1005432	1993-04-13 01:21	46° 54' 49" S 45° 26' 36" E
1005444	1993-04-13 09:11	47° 46' 52" S 44° 53' 31" E
1005524	1993-04-16 04:11	53° 40' 25" S 40° 39' 34" E
1005548	1993-04-16 18:20	54° 0' 13" S 40° 2' 6" E
1005561	1993-04-17 01:43	53° 29' 59" S 40° 4' 11" E
1005653	1993-04-19 06:56	49° 0' 15" S 40° 18' 53" E
1005898	1993-04-05 19:53	44° 34' 35" S 40° 48' 2" E
1005930	1993-04-07 01:24	45° 42' 1" S 40° 33' 46" E
1005954	1993-04-07 18:45	44° 32' 12" S 42° 25' 19" E
1005978	1993-04-08 08:20	44° 27' 14" S 43° 30' 40" E
1005247	1993-04-28 07:58	44° 13' 19" S 32° 49' 45" E
1005284	1993-04-09 03:32	44° 44' 15" S 45° 45' 19" E
1005364	1993-04-10 19:09	45° 36' 33" S 48° 8' 43" E
1005456	1993-04-13 17:02	48° 40' 27" S 44° 21' 24" E
1005468	1993-04-14 03:32	49° 33' 30" S 43° 44' 29" E
1005512	1993-04-15 14:48	52° 49' 55" S 41° 19' 40" E
1005708	1993-03-30 19:40	41° 14' 44" S 29° 39' 53" E
1005721	1993-03-31 03:28	41° 24' 46" S 30° 24' 56" E
1005745	1993-03-31 19:41	41° 42' 38" S 31° 56' 21" E
1005757	1993-04-01 11:15	41° 53' 3" S 32° 50' 26" E
1005782	1993-04-02 09:03	42° 47' 49" S 34° 47' 46" E
1005874	1993-04-05 09:48	44° 35' 23" S 39° 36' 43" E
1005942	1993-04-07 14:43	44° 33' 28" S 41° 53' 7" E
1005991	1993-04-08 15:03	44° 33' 7" S 44° 7' 5" E
1004975	1993-04-19 12:45	48° 29' 35" S 40° 21' 10" E
1005087	1993-04-22 00:31	46° 59' 57" S 35° 44' 53" E
1005106	1993-04-23 10:21	52° 1' 17" S 35° 0' 28" E
1005192	1993-04-27 03:54	45° 30' 49" S 35° 0' 4" E
1005211	1993-04-27 10:12	45° 8' 51" S 34° 21' 31" E
1005235	1993-04-27 23:45	44° 34' 20" S 33° 21' 19" E
1005296	1993-04-09 11:24	44° 54' 47" S 46° 18' 20" E
1005340	1993-04-10 11:44	45° 35' 57" S 47° 36' 52" E
1005376	1993-04-10 23:38	45° 37' 12" S 48° 34' 7" E
1005388	1993-04-11 04:03	45° 38' 1" S 49° 1' 12" E
1005536	1993-04-16 11:35	54° 30' 19" S 39° 58' 40" E
1005690	1993-03-30 10:12	41° 6' 30" S 28° 53' 59" E
1005886	1993-04-05 14:58	44° 35' 8" S 40° 11' 39" E
1005002	1993-04-20 05:41	46° 59' 53" S 40° 19' 43" E
1005143	1993-04-25 19:50	48° 4' 34" S 33° 53' 15" E
1005179	1993-04-26 14:50	46° 29' 45" S 34° 44' 21" E
1005223	1993-04-27 16:56	44° 50' 40" S 33° 50' 32" E
1005272	1993-04-29 10:15	42° 44' 46" S 30° 33' 16" E
1005315	1993-04-09 20:31	45° 15' 37" S 47° 28' 9" E
1005407	1993-04-12 10:48	45° 44' 16" S 47° 4' 57" E
1005604	1993-04-18 05:32	51° 0' 7" S 40° 14' 32" E
1005665	1993-03-27 18:08	36° 52' 27" S 21° 44' 11" E
1005733	1993-03-31 11:12	41° 34' 13" S 31° 11' 5" E
1005770	1993-04-02 02:33	42° 29' 34" S 34° 10' 22" E
1005849	1993-04-04 11:20	44° 24' 31" S 38° 7' 16" E
1004999	1993-04-20 00:16	47° 29' 32" S 40° 19' 18" E
1005259	1993-04-28 17:59	43° 34' 18" S 31° 50' 47" E
1005339	1993-04-10 06:50	45° 25' 45" S 47° 48' 20" E
1005585	1993-04-17 16:43	51° 59' 48" S 40° 9' 21" E
1005616	1993-04-18 10:55	50° 30' 58" S 40° 16' 52" E
1005813	1993-04-03 15:42	43° 39' 17" S 36° 35' 27" E
1005850	1993-04-04 17:50	44° 31' 13" S 38° 33' 45" E
1005905	1993-04-06 05:01	44° 30' 32" S 41° 26' 56" E
1005929	1993-04-06 20:50	45° 21' 20" S 40° 52' 1" E
1005026	1993-04-20 14:49	46° 12' 15" S 40° 27' 48" E
1005099	1993-04-22 05:56	47° 0' 2" S 34° 59' 46" E
1005131	1993-04-25 13:34	48° 37' 21" S 33° 37' 54" E
1005167	1993-04-26 08:50	46° 59' 56" S 34° 30' 13" E
1005303	1993-04-09 16:01	45° 5' 9" S 46° 52' 46" E
1005500	1993-04-15 05:38	51° 59' 47" S 42° 0' 4" E
1005677	1993-03-28 06:43	37° 35' 36" S 22° 53' 24" E
1005837	1993-04-04 05:18	44° 9' 29" S 37° 34' 38" E
1005917	1993-04-06 16:13	45° 0' 6" S 41° 4' 53" E
1005966	1993-04-07 23:00	44° 31' 19" S 42° 57' 51" E

1 Single-beam echosounder

Horizontal spatial co-ordinates
Date and time
Bathymetry and Elevation

[Show series]

Horizontal spatial co-ordinates
Date and time
Bathymetry and Elevation

[Hide series]

BODC id	Date/Time	Location	Doc.
582169	1993-03-27 06:32 — 1993-05-02 14:08	54° 30' 29" S 19° 32' 39" E — 35° 13' 38" S 50° 9' 42" E

Discrete samples

96 CTD frame plus rosette sampler

Transmittance and attenuance of the water column
Phosphate concentration parameters in the water column
Salinity of the water column
Temperature of the water column
Dissolved oxygen parameters in the water column
Stable isotopes in water bodies
Silicate concentration parameters in the water column
Density of the water column
Chlorofluorocarbon concentrations in the water column
Nitrate concentration parameters in the water column

108 Expendable Bathythermograph

Temperature of the water column

22 Instrument mooring

806 Sample taken from ship's non-toxic supply

Salinity of the water column

4595 Shipborne Acoustic Doppler Current Profile

Resources

RRS Discovery D201

Cruise summary report

Quick links

BODC holdings

EDMED