RRS Discovery D69

Cruise summary report

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Cruise Info.

Ship name (ship code)

RRS Discovery (74E3)

Cruise identifier

D69

Cruise period

1975-01-21 — 1975-03-18

Status

Completed

Port of departure

Barry, United Kingdom

Port of return

Barry, United Kingdom

Objectives

The aims were to study the physical, biological and chemical processes involved in upwelling off the NW African Coast with particular emphasis on the measurement of onshore/offshore and longshore water movements and the realtionships of phytoplankton, zooplankton and micronekton distribution to them.
This was part of a 2-ship exercise with FS Meteor.

Chief scientist

Arthur de Chair Baker (Institute of Oceanographic Sciences Wormley Laboratory)

Project

UPWELLING75

Cruise report

(0.59 MB)

Ocean/sea areas

General

North East Atlantic Ocean (limit 40W)
Strait of Gibraltar (Mediterranean Sea)

Track charts

Measurements

Physical oceanography

Surface measurements underway (T,S)

Quantity: track kilometres = 9445

CTD stations

Quantity: number of stations = 140

Optics (eg underwater light levels)

Quantity: 47

Current meters

Quantity: 4
Description: approx. 32 days

Sea level (inc. bot. press., inverted echosounder)

Quantity: activity duration in days = 43
Description: duration-days

Other physical oceanographic measurements

Quantity: 2
Description: velocity shear (protas)

Chemical oceanography

Oxygen

Quantity: 68

Phosphate

Quantity: 68

Nitrate

Quantity: 68

Nitrite

Quantity: 68

Silicate

Quantity: 68

Trace elements

Quantity: 13

Biology and fisheries

Phytoplankton pigs (eg chlorophyll, fluorescence)

Quantity: 20

Phytoplankton pigs (eg chlorophyll, fluorescence)

Quantity: track kilometres = 9260
Description: underway

Particulate organic matter (inc POC, PON)

Quantity: 16
Description: 250nm underway

Zooplankton

Quantity: 49
Description: survey:taxonomy

Neuston

Quantity: 18

Nekton

Quantity: 98

Zoobenthos

Quantity: 3

Other biological/fisheries measurement

Description: deep scattering layers

Meteorology

Incident radiation

Routine standard measurements

Description: 6 hourly

Other meteorological measurements

Description: stand.measurements at 2 minute intervals

Geology and geophysics

Single-beam echosounding

Quantity: track kilometres = 10001

Magnetic measurements

Quantity: track kilometres = 4630

Data held at BODC

Get data

Series/Profiles

140 CTD/STD cast

Salinity of the water column
Temperature of the water column
Vertical spatial coordinates

[Show series]

Salinity of the water column
Temperature of the water column
Vertical spatial coordinates

[Hide series]

BODC id	Date/Time	Location
86823	1975-03-02 19:52 — 1975-03-02 19:58	22° 43' 15" N 17° 8' 18" W
85451	1975-02-03 04:14 — 1975-02-03 04:40	22° 45' 54" N 17° 14' 42" W
85475	1975-02-03 18:55 — 1975-02-03 19:11	22° 46' 37" N 17° 15' 12" W
86141	1975-02-21 07:26 — 1975-02-21 07:46	25° 30' 32" N 16° 28' 35" W
86165	1975-02-21 12:32 — 1975-02-21 12:49	25° 18' 46" N 16° 11' 5" W
86208	1975-02-21 19:41 — 1975-02-21 19:46	25° 0' 1" N 15° 40' 32" W
86282	1975-02-22 23:28 — 1975-02-22 23:48	22° 48' 23" N 17° 20' 34" W
86510	1975-02-26 09:32 — 1975-02-26 09:42	22° 45' 47" N 17° 14' 40" W
86687	1975-03-01 05:30 — 1975-03-01 05:52	22° 45' 9" N 17° 15' 55" W
86718	1975-03-01 15:13 — 1975-03-01 15:32	22° 52' 24" N 17° 36' 53" W
86835	1975-03-02 20:51 — 1975-03-02 21:02	22° 44' 38" N 17° 10' 50" W
86872	1975-03-03 19:03 — 1975-03-03 19:16	22° 44' 10" N 17° 12' 9" W
86884	1975-03-03 20:08 — 1975-03-03 20:16	22° 43' 14" N 17° 11' 17" W
86896	1975-03-03 21:08 — 1975-03-03 21:13	22° 42' 34" N 17° 10' 41" W
85776	1975-02-11 04:06 — 1975-02-11 04:31	22° 44' 34" N 17° 17' 34" W
85868	1975-02-12 02:06 — 1975-02-12 02:22	22° 45' 27" N 17° 13' 19" W
85961	1975-02-13 22:37 — 1975-02-13 22:56	25° 29' 58" N 16° 30' 9" W
86036	1975-02-15 22:06 — 1975-02-15 22:26	25° 17' 16" N 16° 15' 39" W
86128	1975-02-21 04:43 — 1975-02-21 05:02	25° 36' 48" N 16° 39' 3" W
86257	1975-02-22 18:31 — 1975-02-22 18:36	22° 42' 39" N 17° 2' 5" W
86350	1975-02-24 06:39 — 1975-02-24 06:50	22° 53' 27" N 17° 48' 27" W
86362	1975-02-24 07:35 — 1975-02-24 07:46	22° 53' 29" N 17° 48' 10" W
86405	1975-02-24 12:32 — 1975-02-24 12:42	22° 53' 56" N 17° 48' 28" W
86442	1975-02-24 16:32 — 1975-02-24 16:41	22° 53' 49" N 17° 48' 23" W
86614	1975-02-26 18:33 — 1975-02-26 18:43	22° 45' 54" N 17° 15' 54" W
86663	1975-03-01 01:20 — 1975-03-01 01:25	22° 41' 41" N 16° 57' 36" W
86675	1975-03-01 02:34 — 1975-03-01 02:39	22° 43' 32" N 17° 2' 3" W
86546	1975-02-26 12:33 — 1975-02-26 12:42	22° 46' 3" N 17° 16' 25" W
86313	1975-02-23 07:50	22° 53' 41" N 17° 47' 9" W
86743	1975-03-01 21:14 — 1975-03-01 21:33	22° 54' 10" N 17° 58' 12" W
86731	1975-03-01 18:18 — 1975-03-01 18:39	22° 52' 16" N 17° 48' 17" W
85579	1975-02-06 19:06 — 1975-02-06 19:22	25° 36' 14" N 16° 41' 29" W
85973	1975-02-14 01:09 — 1975-02-14 01:29	25° 25' 14" N 16° 20' 4" W
86374	1975-02-24 08:34 — 1975-02-24 08:45	22° 54' 24" N 17° 48' 18" W
86000	1975-02-14 15:28 — 1975-02-14 15:34	25° 11' 5" N 15° 57' 45" W
86024	1975-02-15 20:44 — 1975-02-15 21:02	25° 18' 58" N 16° 17' 44" W
86048	1975-02-15 23:35 — 1975-02-15 23:54	25° 15' 14" N 16° 12' 44" W
85924	1975-02-12 07:57 — 1975-02-12 08:13	22° 45' 54" N 17° 16' 23" W
86012	1975-02-14 18:41 — 1975-02-14 18:44	25° 6' 14" N 15° 50' 32" W
86085	1975-02-16 04:03 — 1975-02-16 04:10	25° 9' 7" N 16° 5' 27" W
85936	1975-02-13 12:31 — 1975-02-13 12:55	25° 44' 46" N 16° 48' 11" W
86429	1975-02-24 14:31 — 1975-02-24 14:39	22° 53' 35" N 17° 48' 48" W
86073	1975-02-16 03:12	25° 10' 22" N 16° 5' 25" W
85463	1975-02-03 05:20 — 1975-02-03 05:21	22° 46' 11" N 17° 14' 32" W
85580	1975-02-07 07:23 — 1975-02-07 07:43	25° 30' 41" N 16° 30' 32" W
85739	1975-02-10 15:14 — 1975-02-10 15:18	22° 44' 15" N 17° 10' 0" W
85819	1975-02-11 08:28 — 1975-02-11 08:43	22° 43' 49" N 17° 12' 19" W
85635	1975-02-07 22:56 — 1975-02-07 23:03	25° 10' 12" N 15° 55' 54" W
85820	1975-02-11 09:30 — 1975-02-11 09:35	22° 43' 41" N 17° 11' 2" W
86792	1975-03-02 18:24 — 1975-03-02 18:28	22° 42' 6" N 17° 1' 38" W
86061	1975-02-16 01:28 — 1975-02-16 01:41	25° 12' 40" N 16° 8' 40" W
86190	1975-02-21 17:47 — 1975-02-21 17:51	25° 6' 54" N 15° 49' 56" W
85703	1975-02-09 23:53 — 1975-02-10 00:15	22° 50' 6" N 17° 26' 31" W
85948	1975-02-13 15:34 — 1975-02-13 15:51	25° 37' 38" N 16° 39' 59" W
85518	1975-02-05 02:51 — 1975-02-05 03:24	22° 51' 8" N 17° 49' 31" W
85402	1975-02-02 19:26 — 1975-02-02 19:28	22° 42' 4" N 16° 54' 12" W
85438	1975-02-03 02:21 — 1975-02-03 02:24	22° 43' 12" N 17° 8' 8" W
85487	1975-02-04 00:50 — 1975-02-04 01:07	22° 47' 53" N 17° 20' 57" W
85555	1975-02-06 15:56 — 1975-02-06 16:18	25° 43' 26" N 16° 49' 14" W
85684	1975-02-09 04:54 — 1975-02-09 05:12	22° 53' 44" N 17° 49' 40" W
85727	1975-02-10 13:32 — 1975-02-10 13:55	22° 45' 0" N 17° 14' 43" W
86294	1975-02-23 01:49 — 1975-02-23 02:09	22° 47' 56" N 17° 27' 37" W
85647	1975-02-08 00:59 — 1975-02-08 01:05	25° 6' 19" N 15° 49' 12" W
85715	1975-02-10 05:47 — 1975-02-10 06:06	22° 47' 7" N 17° 20' 43" W
85740	1975-02-10 17:38 — 1975-02-10 17:41	22° 40' 8" N 17° 3' 7" W
85371	1975-01-31 18:35 — 1975-01-31 19:01	25° 41' 46" N 16° 50' 3" W
85659	1975-02-08 03:49 — 1975-02-08 03:52	24° 59' 53" N 15° 41' 51" W
85893	1975-02-12 04:16 — 1975-02-12 04:35	22° 44' 6" N 17° 11' 57" W
86491	1975-02-26 07:33 — 1975-02-26 07:43	22° 44' 38" N 17° 15' 0" W
85660	1975-02-08 05:37 — 1975-02-08 05:39	24° 54' 17" N 15° 31' 1" W
86417	1975-02-24 13:31 — 1975-02-24 13:40	22° 53' 46" N 17° 48' 55" W
85832	1975-02-11 20:37 — 1975-02-11 21:09	22° 46' 32" N 17° 24' 20" W
85985	1975-02-14 09:44 — 1975-02-14 10:04	25° 18' 45" N 16° 11' 15" W
86398	1975-02-24 11:32 — 1975-02-24 11:41	22° 53' 27" N 17° 48' 8" W
85900	1975-02-12 05:26 — 1975-02-12 05:35	22° 43' 10" N 17° 11' 32" W
86325	1975-02-23 09:54 — 1975-02-23 10:12	22° 55' 24" N 17° 57' 22" W
86245	1975-02-22 17:23 — 1975-02-22 17:28	22° 42' 9" N 16° 55' 58" W
86104	1975-02-16 06:57 — 1975-02-16 07:01	25° 7' 51" N 15° 55' 29" W
86466	1975-02-24 18:31 — 1975-02-24 18:42	22° 53' 53" N 17° 48' 21" W
86116	1975-02-21 01:55 — 1975-02-21 02:21	25° 45' 14" N 16° 48' 21" W
86221	1975-02-21 21:17 — 1975-02-21 21:20	24° 54' 1" N 15° 32' 7" W
86478	1975-02-26 06:40 — 1975-02-26 06:51	22° 45' 38" N 17° 14' 39" W
86583	1975-02-26 15:35 — 1975-02-26 15:45	22° 45' 48" N 17° 14' 40" W
86602	1975-02-26 17:33 — 1975-02-26 17:43	22° 45' 56" N 17° 15' 28" W
86337	1975-02-23 13:21 — 1975-02-23 13:30	22° 53' 2" N 17° 48' 1" W
86571	1975-02-26 14:29 — 1975-02-26 14:41	22° 45' 59" N 17° 14' 34" W
86349	1975-02-23 17:02 — 1975-02-23 17:11	22° 53' 31" N 17° 47' 17" W
86454	1975-02-24 17:31 — 1975-02-24 17:41	22° 53' 55" N 17° 48' 17" W
86301	1975-02-23 04:18 — 1975-02-23 04:40	22° 50' 22" N 17° 39' 16" W
86779	1975-03-02 17:05 — 1975-03-02 17:08	22° 42' 37" N 16° 57' 17" W
85672	1975-02-09 02:19 — 1975-02-09 02:36	22° 56' 0" N 17° 57' 36" W
85752	1975-02-10 20:36 — 1975-02-10 20:38	22° 39' 58" N 16° 58' 58" W
85426	1975-02-03 00:31 — 1975-02-03 00:33	22° 42' 50" N 17° 2' 46" W
86269	1975-02-22 19:55 — 1975-02-22 20:01	22° 44' 9" N 17° 7' 50" W
86558	1975-02-26 13:31 — 1975-02-26 13:40	22° 46' 24" N 17° 16' 1" W
86638	1975-02-27 13:46 — 1975-02-27 13:57	22° 47' 2" N 17° 19' 44" W
86859	1975-03-03 16:04 — 1975-03-03 16:13	22° 44' 25" N 17° 11' 4" W
86651	1975-03-01 00:08 — 1975-03-01 00:12	22° 40' 36" N 16° 51' 36" W
86706	1975-03-01 11:20 — 1975-03-01 11:37	22° 48' 2" N 17° 28' 5" W
86767	1975-03-02 16:29 — 1975-03-02 16:33	22° 42' 27" N 16° 56' 55" W
85788	1975-02-11 06:07 — 1975-02-11 06:29	22° 44' 9" N 17° 15' 4" W
85807	1975-02-11 07:24 — 1975-02-11 07:41	22° 44' 5" N 17° 13' 46" W
85844	1975-02-11 23:08 — 1975-02-11 23:24	22° 46' 20" N 17° 15' 55" W
85881	1975-02-12 03:13 — 1975-02-12 03:32	22° 44' 32" N 17° 12' 7" W
85912	1975-02-12 06:46 — 1975-02-12 06:51	22° 42' 34" N 17° 10' 23" W
86097	1975-02-16 05:07 — 1975-02-16 05:11	25° 8' 16" N 16° 4' 19" W
86153	1975-02-21 10:00 — 1975-02-21 10:21	25° 25' 12" N 16° 19' 40" W
86177	1975-02-21 14:31 — 1975-02-21 14:38	25° 14' 53" N 16° 3' 40" W
86233	1975-02-22 16:16 — 1975-02-22 16:19	22° 41' 20" N 16° 50' 53" W
86386	1975-02-24 10:33 — 1975-02-24 10:43	22° 53' 49" N 17° 48' 14" W
86534	1975-02-26 11:32 — 1975-02-26 11:42	22° 45' 54" N 17° 15' 49" W
86626	1975-02-27 07:14 — 1975-02-27 07:23	22° 46' 11" N 17° 24' 7" W
86699	1975-03-01 08:44 — 1975-03-01 09:04	22° 47' 27" N 17° 19' 32" W
86755	1975-03-02 15:52 — 1975-03-02 15:55	22° 41' 41" N 16° 54' 10" W
86811	1975-03-02 19:02 — 1975-03-02 19:07	22° 42' 38" N 17° 4' 58" W
86903	1975-03-03 22:13 — 1975-03-03 22:17	22° 40' 32" N 17° 7' 5" W
85395	1975-02-01 03:29 — 1975-02-01 03:48	25° 19' 41" N 16° 9' 21" W
85414	1975-02-02 22:26 — 1975-02-02 22:27	22° 42' 2" N 16° 56' 18" W
85531	1975-02-05 02:51 — 1975-02-05 03:14	22° 51' 8" N 17° 49' 31" W
85543	1975-02-05 06:42 — 1975-02-05 07:08	22° 55' 26" N 17° 59' 8" W
85592	1975-02-07 10:48 — 1975-02-07 11:05	25° 25' 47" N 16° 19' 36" W
85611	1975-02-07 15:49 — 1975-02-07 16:07	25° 18' 30" N 16° 11' 31" W
85623	1975-02-07 18:53 — 1975-02-07 19:04	25° 15' 12" N 16° 4' 8" W
85696	1975-02-09 15:57 — 1975-02-09 16:17	22° 50' 47" N 17° 38' 13" W
85764	1975-02-10 22:04 — 1975-02-10 22:08	22° 39' 33" N 16° 53' 3" W
86189	1975-02-21 16:08 — 1975-02-21 16:13	25° 10' 20" N 15° 56' 45" W
86522	1975-02-26 10:31 — 1975-02-26 10:39	22° 45' 47" N 17° 13' 55" W
86847	1975-03-03 14:34 — 1975-03-03 14:38	22° 43' 35" N 17° 8' 22" W
86860	1975-03-03 17:58 — 1975-03-03 18:09	22° 44' 28" N 17° 11' 37" W
85383	1975-01-31 22:17 — 1975-01-31 22:39	25° 30' 57" N 16° 29' 11" W
85499	1975-02-04 13:22 — 1975-02-04 13:37	22° 50' 0" N 17° 29' 19" W
85506	1975-02-04 14:57 — 1975-02-04 15:13	22° 52' 9" N 17° 37' 28" W
85567	1975-02-06 14:27 — 1975-02-06 14:37	25° 44' 11" N 16° 49' 51" W
85856	1975-02-12 00:21 — 1975-02-12 00:39	22° 46' 29" N 17° 13' 32" W
85997	1975-02-14 12:34 — 1975-02-14 12:42	25° 14' 54" N 16° 3' 34" W
86270	1975-02-22 21:16 — 1975-02-22 21:38	22° 46' 10" N 17° 14' 48" W
86430	1975-02-24 15:33 — 1975-02-24 15:41	22° 53' 24" N 17° 48' 33" W
86509	1975-02-26 08:34 — 1975-02-26 08:43	22° 45' 37" N 17° 14' 25" W
86595	1975-02-26 16:31 — 1975-02-26 16:42	22° 45' 56" N 17° 15' 5" W
86780	1975-03-02 17:52 — 1975-03-02 17:55	22° 41' 19" N 17° 0' 19" W

1 Unspecified Instrumentation

Date and time
Wind strength and direction

[Show series]

Date and time
Wind strength and direction

[Hide series]

BODC id	Date/Time	Location	Doc.
38187	1975-01-31 00:00 — 1975-03-07 00:00	22° 39' 59" N 18° 16' 59" W — 25° 45' 0" N 15° 30' 59" W

Resources

RRS Discovery D69

Cruise summary report

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