Resources

RRS John Murray JM8/78

Cruise summary report

Search the Cruise Inventory

Cruise Info.

Ship name (ship code)

RRS John Murray (74MJ)

Cruise identifier

JM8/78

Cruise period

1978-07-12 — 1978-09-01

Status

Completed

Port of departure

Barry, United Kingdom

Objectives

1. Radiosonde launches at intervals determined by weather conditions. On intensive days hourly launches were aimed for between 0600 and 2100; apart from these a program of 6-hourly ascents was maintained.
2. Automatic logging of 1-minute values of surface pressure, relative wind speed and direction, wet-and-dry bulb temperature, sea surface temperature, solar and net radiation.
3. Hourly surface meteorological observations. The variables in (2), apart from radiation, were measured by an independent set of instruments as a back-up. Additional observations of precipitation, cloud type, wind and swell waves, and present weather were made. These reports were transmitted at 6-hourly intervals to aid forecasting for the JASIN area.
4. Photographs of cloud cover using a 16mm time-lapse all-sky camera and 35mm cameras. Precipitation echoes on the radar display were also photographed.
5. Operation of Ship-borne Wave Recorder at three or six-hourly intervals when on station and additional records during passes of SEASAT-A, a new oceanographic satellite, for which 'ground-truth' measurements were required.
6. Intercomparisons of systems on all meteorological ships. These took place in prearranged formal intercomparison periods. Every opportunity was also taken for comparisons with other platforms on an opportunity basis.
7. Calibration of pressure readings against the relative winds.

Chief scientist

Trevor H Guymer (Institute of Oceanographic Sciences Wormley Laboratory)

Project

JASIN

Cruise report

RRS John Murray JM8/78 cruise report john_murray8_78.pdf

(1.09 MB)

Ocean/sea areas

General

North East Atlantic Ocean (limit 40W)

Track charts

RRS John Murray JM8/78 cruise track — trk2075.html

Measurements

Physical oceanography

Water bottle stations

Quantity: number of stations = 778
Description: T surface only

Subsurface temperature and salinity measurements

Instrumented wave measurements

Quantity: activity duration in hours = 86
Description: ship-borne wave recorder

Contamination

Other contaminant measurements

Description: discoloured water

Meteorology

Upper air observations

Quantity: number of profiles = 150
Description: ascents

Incident radiation

Routine standard measurements

Quantity: number of observations = 778
Description: hourly observations

Other meteorological measurements

Description: nominally continuous logging of surface variables

Other meteorological measurements

Quantity: number of images = 2900
Description: all-sky cloud pictures

Other meteorological measurements

Quantity: number of images = 100
Description: conventional cloud photography

Other meteorological measurements

Quantity: number of measurements = 41
Description: precipitation echoes

Other meteorological measurements

Quantity: number of observations = 778
Description: visual observations of sea and swell

Geology and geophysics

Single-beam echosounding

Quantity: activity duration in hours = 187

Multi-beam echosounding

Quantity: activity duration in hours = 187

Data held at BODC

Series/Profiles

1 Accelerometer-shipborne wave recorder

Date and time
Vertical spatial coordinates
Sampling parameters
Wave height and period statistics

Date and time
Vertical spatial coordinates
Sampling parameters
Wave height and period statistics

BODC id	Date/Time	Location	Doc.
52887	1978-07-16 04:02 — 1978-08-29 06:42	60° 15' 0" N 10° 30' 0" W

Reference numbers
Date and time
Vertical spatial coordinates
Air temperature
Wind strength and direction
Atmospheric humidity

Reference numbers
Date and time
Vertical spatial coordinates
Air temperature
Wind strength and direction
Atmospheric humidity

BODC id	Date/Time	Location	Doc.
196702	1978-08-24 11:35 — 1978-08-24 12:02:27	59° 46' 59" N 12° 31' 36" W
197674	1978-08-07 16:08:06 — 1978-08-07 16:43	60° 14' 14" N 10° 29' 24" W
196867	1978-08-25 14:11 — 1978-08-25 14:47:58	59° 46' 0" N 12° 30' 11" W
197023	1978-08-28 11:24 — 1978-08-28 11:43:44	59° 45' 0" N 12° 31' 0" W
196714	1978-08-24 12:35 — 1978-08-24 13:09:54	59° 45' 47" N 12° 31' 59" W
196879	1978-08-25 15:22 — 1978-08-25 16:06:39	59° 44' 35" N 12° 26' 53" W
196947	1978-08-26 12:13 — 1978-08-26 13:06:28	60° 14' 30" N 10° 28' 48" W
196996	1978-08-28 08:51 — 1978-08-28 09:39:57	59° 44' 44" N 12° 31' 47" W
196763	1978-08-24 17:56 — 1978-08-24 18:28:18	59° 44' 48" N 12° 32' 48" W
196787	1978-08-24 20:10 — 1978-08-24 20:41:41	59° 46' 0" N 12° 30' 0" W
197717	1978-08-07 21:43:04 — 1978-08-07 22:21:21	60° 15' 35" N 10° 29' 43" W
196923	1978-08-25 20:59 — 1978-08-25 21:15:47	59° 45' 37" N 12° 28' 18" W
197858	1978-08-22 14:38 — 1978-08-22 15:12:13	59° 46' 1" N 12° 28' 0" W
197072	1978-08-28 17:21:01 — 1978-08-28 18:05:15	59° 45' 18" N 12° 33' 36" W
197103	1978-08-28 21:37 — 1978-08-28 22:15:21	59° 44' 24" N 12° 29' 30" W
197300	1978-08-03 18:11 — 1978-08-03 18:41:05	60° 14' 40" N 10° 15' 7" W
197324	1978-08-04 05:55 — 1978-08-04 06:30	60° 14' 41" N 10° 29' 1" W
197416	1978-08-04 14:33 — 1978-08-04 15:17	60° 15' 3" N 10° 29' 25" W
197385	1978-08-04 11:04 — 1978-08-04 11:13:30	60° 16' 3" N 10° 29' 26" W
197570	1978-08-06 18:06 — 1978-08-06 18:40	60° 14' 35" N 10° 29' 3" W
197601	1978-08-07 07:28 — 1978-08-07 08:21	60° 16' 0" N 10° 29' 52" W
197650	1978-08-07 13:38 — 1978-08-07 14:16	60° 15' 25" N 10° 29' 5" W
197742	1978-08-08 07:31 — 1978-08-08 08:10	60° 14' 57" N 10° 29' 22" W
197662	1978-08-07 14:51 — 1978-08-07 15:37	60° 14' 51" N 10° 29' 22" W
197810	1978-08-22 08:52 — 1978-08-22 09:20:59	59° 42' 42" N 12° 34' 59" W
198690	1978-07-20 10:44 — 1978-07-20 11:08:54	60° 13' 30" N 10° 33' 29" W
198801	1978-07-30 12:48:12 — 1978-07-30 13:17	60° 15' 51" N 10° 30' 8" W
197846	1978-08-22 13:35 — 1978-08-22 14:04:13	59° 44' 17" N 12° 33' 0" W
197963	1978-08-24 10:14 — 1978-08-24 10:50:41	59° 45' 35" N 12° 29' 30" W
197914	1978-08-22 20:37 — 1978-08-22 21:08:04	59° 49' 59" N 12° 33' 0" W
197938	1978-08-24 07:37 — 1978-08-24 08:12:56	59° 46' 18" N 12° 33' 36" W
198782	1978-07-30 08:25 — 1978-07-30 08:42:30	60° 14' 49" N 10° 29' 8" W
196935	1978-08-26 06:11 — 1978-08-26 06:53:32	60° 13' 54" N 10° 28' 36" W
196806	1978-08-25 07:26 — 1978-08-25 08:10:26	59° 45' 47" N 12° 28' 0" W
196892	1978-08-25 18:15 — 1978-08-25 18:44:26	59° 46' 0" N 12° 31' 47" W
197533	1978-08-06 06:03 — 1978-08-06 06:20	60° 14' 30" N 10° 29' 5" W
197809	1978-08-22 07:32 — 1978-08-22 08:04:10	59° 42' 38" N 12° 35' 42" W
197883	1978-08-22 17:14 — 1978-08-22 17:50:51	59° 44' 51" N 12° 32' 12" W
197047	1978-08-28 13:36 — 1978-08-28 14:19	59° 46' 50" N 12° 28' 59" W
197164	1978-07-31 00:01 — 1978-07-31 00:38:33	60° 13' 45" N 10° 29' 44" W
197176	1978-07-31 06:21:06 — 1978-07-31 07:18	60° 13' 19" N 10° 29' 13" W
197188	1978-07-31 12:00 — 1978-07-31 12:12:12	60° 14' 41" N 10° 28' 58" W
197244	1978-08-02 00:35:09 — 1978-08-02 01:08	60° 16' 14" N 10° 28' 49" W
197348	1978-08-04 08:09 — 1978-08-04 08:29	60° 14' 5" N 10° 29' 24" W
197361	1978-08-04 08:51 — 1978-08-04 09:21	60° 14' 26" N 10° 29' 3" W
197489	1978-08-05 06:03 — 1978-08-05 06:39	60° 15' 6" N 10° 28' 41" W
197834	1978-08-22 11:49 — 1978-08-22 12:17:51	59° 43' 4" N 12° 40' 0" W
196843	1978-08-25 11:51 — 1978-08-25 12:25:25	59° 46' 46" N 12° 28' 48" W
196911	1978-08-25 19:53 — 1978-08-25 20:26:08	59° 47' 48" N 12° 34' 48" W
196959	1978-08-26 18:03 — 1978-08-26 18:21:14	60° 13' 54" N 10° 30' 24" W
197060	1978-08-28 15:32:06 — 1978-08-28 16:00:21	59° 45' 47" N 12° 31' 0" W
197084	1978-08-28 18:58:03 — 1978-08-28 19:30:42	59° 45' 11" N 12° 25' 54" W
197115	1978-07-30 16:25:12 — 1978-07-30 17:00:52	60° 15' 42" N 10° 29' 12" W
197139	1978-07-30 19:08 — 1978-07-30 20:08	60° 16' 50" N 10° 28' 23" W
197256	1978-08-02 06:04 — 1978-08-02 06:27	60° 14' 41" N 10° 29' 58" W
197397	1978-08-04 12:18 — 1978-08-04 12:50	60° 16' 11" N 10° 29' 13" W
197441	1978-08-04 17:23:15 — 1978-08-04 18:04:30	60° 14' 37" N 10° 29' 29" W
197521	1978-08-05 23:40 — 1978-08-06 00:15	60° 15' 54" N 10° 29' 43" W
197557	1978-08-06 11:53:12 — 1978-08-06 12:33	60° 15' 14" N 10° 29' 47" W
197594	1978-08-07 06:15:03 — 1978-08-07 06:52:32	60° 15' 20" N 10° 29' 29" W
197778	1978-08-08 18:03 — 1978-08-08 18:44	60° 15' 20" N 10° 29' 21" W
196775	1978-08-24 18:53 — 1978-08-24 19:22:02	59° 44' 44" N 12° 32' 48" W
196799	1978-08-25 06:17 — 1978-08-25 06:50:27	59° 45' 54" N 12° 25' 59" W
197035	1978-08-28 12:33:03 — 1978-08-28 13:05:39	59° 45' 15" N 12° 32' 35" W
197232	1978-08-01 18:03 — 1978-08-01 18:35:15	60° 15' 19" N 10° 29' 54" W
197281	1978-08-02 18:21 — 1978-08-02 18:52:36	60° 15' 20" N 10° 27' 52" W
197293	1978-08-03 00:05 — 1978-08-03 00:41:48	60° 15' 24" N 10° 28' 37" W
197336	1978-08-04 06:53 — 1978-08-04 07:43	60° 13' 59" N 10° 29' 12" W
197465	1978-08-04 20:49 — 1978-08-04 21:23:30	60° 15' 9" N 10° 28' 54" W
197582	1978-08-06 23:46 — 1978-08-07 00:16	60° 15' 24" N 10° 29' 39" W
197637	1978-08-07 10:42 — 1978-08-07 11:42	60° 14' 9" N 10° 29' 28" W
197649	1978-08-07 12:24 — 1978-08-07 13:03	60° 15' 27" N 10° 29' 4" W
197754	1978-08-08 11:58 — 1978-08-08 12:34	60° 14' 46" N 10° 29' 47" W
197766	1978-08-08 15:02 — 1978-08-08 15:39	60° 15' 2" N 10° 29' 15" W
198665	1978-07-19 11:46 — 1978-07-19 12:20:06	60° 12' 0" N 10° 31' 59" W
196726	1978-08-24 14:08 — 1978-08-24 14:29:20	59° 45' 18" N 12° 28' 0" W
196738	1978-08-24 15:24 — 1978-08-24 16:09:52	59° 45' 35" N 12° 32' 12" W
196855	1978-08-25 13:05 — 1978-08-25 13:33:04	59° 46' 54" N 12° 31' 36" W
197059	1978-08-28 15:03 — 1978-08-28 15:07:01	59° 46' 12" N 12° 30' 24" W
197207	1978-07-31 18:05:18 — 1978-07-31 18:50	60° 15' 10" N 10° 29' 16" W
197220	1978-08-01 06:09:06 — 1978-08-01 06:44:45	60° 15' 29" N 10° 29' 16" W
197268	1978-08-02 11:54 — 1978-08-02 12:32:42	60° 14' 17" N 10° 27' 38" W
197312	1978-08-03 23:36:15 — 1978-08-04 00:15:36	60° 15' 8" N 10° 28' 58" W
197428	1978-08-04 16:13:06 — 1978-08-04 16:35	60° 14' 46" N 10° 28' 58" W
197453	1978-08-04 19:48 — 1978-08-04 20:06:18	60° 14' 52" N 10° 29' 13" W
197477	1978-08-04 23:46:24 — 1978-08-05 00:09	60° 15' 0" N 10° 28' 55" W
197545	1978-08-06 07:37 — 1978-08-06 08:18	60° 14' 52" N 10° 29' 2" W
197705	1978-08-07 19:57 — 1978-08-07 20:40	60° 14' 36" N 10° 29' 22" W
197791	1978-08-22 06:19 — 1978-08-22 06:51:32	59° 42' 42" N 12° 34' 59" W
197822	1978-08-22 09:59 — 1978-08-22 10:30:11	59° 43' 41" N 12° 37' 30" W
197951	1978-08-24 08:50 — 1978-08-24 09:55:54	59° 45' 47" N 12° 28' 36" W
197490	1978-08-05 11:58 — 1978-08-05 12:39	60° 14' 50" N 10° 29' 44" W
196984	1978-08-27 07:34:03 — 1978-08-27 08:16:39	59° 45' 0" N 12° 29' 12" W
197096	1978-08-28 20:14:03 — 1978-08-28 20:59:54	59° 44' 43" N 12° 27' 42" W
197219	1978-08-01 01:02 — 1978-08-01 01:36:30	60° 14' 14" N 10° 29' 32" W
198708	1978-07-20 12:46 — 1978-07-20 13:28:54	60° 15' 34" N 10° 29' 34" W
198770	1978-07-30 06:59 — 1978-07-30 07:07:30	60° 16' 5" N 10° 28' 54" W
198733	1978-07-20 16:50 — 1978-07-20 17:12	60° 13' 30" N 10° 33' 0" W
198769	1978-07-22 14:13 — 1978-07-22 14:46:57	60° 15' 29" N 10° 34' 0" W
198813	1978-07-30 14:03 — 1978-07-30 14:23	60° 15' 46" N 10° 29' 18" W
198689	1978-07-20 09:05 — 1978-07-20 09:50:24	60° 14' 30" N 10° 31' 59" W
198721	1978-07-20 14:03 — 1978-07-20 14:44:06	60° 13' 0" N 10° 34' 0" W
197140	1978-07-30 20:36 — 1978-07-30 20:47	60° 15' 11" N 10° 28' 42" W
197152	1978-07-30 21:12:03 — 1978-07-30 21:48	60° 15' 0" N 10° 28' 29" W
198825	1978-07-30 15:15 — 1978-07-30 15:58	60° 16' 32" N 10° 28' 56" W
197373	1978-08-04 09:41 — 1978-08-04 10:18	60° 15' 0" N 10° 28' 29" W
197613	1978-08-07 08:32:12 — 1978-08-07 09:02	60° 14' 49" N 10° 29' 18" W
196880	1978-08-25 16:58 — 1978-08-25 17:36:52	59° 46' 22" N 12° 30' 35" W
197127	1978-07-30 17:50:21 — 1978-07-30 18:34:55	60° 16' 50" N 10° 28' 27" W
198794	1978-07-30 10:50:09 — 1978-07-30 10:58:30	60° 15' 5" N 10° 29' 19" W
197625	1978-08-07 09:23 — 1978-08-07 10:00	60° 14' 48" N 10° 29' 13" W
197686	1978-08-07 17:31 — 1978-08-07 18:00:30	60° 15' 27" N 10° 29' 21" W
197729	1978-08-07 23:50 — 1978-08-08 00:31	60° 14' 26" N 10° 29' 43" W
197730	1978-08-08 06:16 — 1978-08-08 06:58	60° 14' 28" N 10° 29' 22" W
197871	1978-08-22 15:57 — 1978-08-22 16:38:16	59° 45' 47" N 12° 30' 29" W
198653	1978-07-17 20:57 — 1978-07-17 21:27:15	60° 13' 3" N 10° 33' 0" W
198677	1978-07-20 07:03:06 — 1978-07-20 07:20:15	60° 16' 29" N 10° 34' 0" W
198745	1978-07-20 18:52:06 — 1978-07-20 19:16:42	60° 13' 59" N 10° 33' 0" W
196751	1978-08-24 16:28 — 1978-08-24 17:12:21	59° 45' 6" N 12° 29' 35" W
196818	1978-08-25 08:59 — 1978-08-25 09:37:24	59° 43' 22" N 12° 30' 35" W
196831	1978-08-25 10:16 — 1978-08-25 10:52:40	59° 45' 43" N 12° 28' 0" W
196960	1978-08-26 18:28 — 1978-08-26 18:58:21	60° 13' 54" N 10° 30' 24" W
196972	1978-08-27 06:15 — 1978-08-27 06:54:42	59° 45' 47" N 12° 27' 6" W
197011	1978-08-28 10:19:05 — 1978-08-28 11:00:53	59° 45' 7" N 12° 28' 29" W
197404	1978-08-04 13:30 — 1978-08-04 13:56	60° 16' 18" N 10° 29' 17" W
197508	1978-08-05 18:16 — 1978-08-05 18:54	60° 13' 45" N 10° 29' 17" W
197569	1978-08-06 13:42 — 1978-08-06 14:18	60° 16' 13" N 10° 29' 28" W
197698	1978-08-07 18:43 — 1978-08-07 19:13	60° 16' 5" N 10° 28' 27" W
197895	1978-08-22 18:35 — 1978-08-22 19:08:05	59° 44' 51" N 12° 32' 12" W
197902	1978-08-22 19:43 — 1978-08-22 20:03:27	59° 45' 27" N 12° 35' 30" W
197926	1978-08-24 06:12 — 1978-08-24 06:44:23	59° 45' 4" N 12° 31' 30" W
198641	1978-07-17 11:41 — 1978-07-17 12:41	60° 13' 30" N 10° 32' 3" W
198757	1978-07-20 19:57 — 1978-07-20 20:01:36	60° 13' 59" N 10° 33' 0" W

4 Unspecified Instrumentation

Air pressure
Horizontal spatial co-ordinates
Date and time
Temperature of the water column
Air temperature
Wind strength and direction
Horizontal platform movement
Atmospheric humidity

Air pressure
Horizontal spatial co-ordinates
Date and time
Temperature of the water column
Air temperature
Wind strength and direction
Horizontal platform movement
Atmospheric humidity

BODC id	Date/Time	Location	Doc.
45725	1978-07-27 18:23 — 1978-08-10 16:42	60° 15' 0" N 10° 30' 0" W
45737	1978-08-19 18:50 — 1978-08-30 15:41	59° 45' 59" N 14° 30' 59" W — 60° 15' 0" N 10° 30' 0" W
45713	1978-07-15 11:13 — 1978-07-24 07:01	60° 15' 0" N 10° 30' 0" W
45031	1978-07-13 11:00 — 1978-08-29 23:00	59° 45' 59" N 14° 30' 59" W — 60° 15' 0" N 10° 30' 0" W

CoreTrustSeal

Tel +44 (0) 782 512 0946

Email enquiries@bodc.ac.uk

British Oceanographic Data Centre
National Oceanography Centre
Joseph Proudman Building
6 Brownlow Street
Liverpool
L3 5DA
United Kingdom

British Oceanographic Data Centre
National Oceanography Centre
European Way
Southampton
SO14 3ZH
United Kingdom