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BODC Cruise Metadata Report for RRS Challenger (74CH) cruise CH56

Introduction

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

Cruise Inventory Information

Long name RRS Challenger (74CH) cruise CH56
Short name CH56
Objectives and Narrative The broad aim as set out in the cruise plan was to study the circulation in the Flamborough frontal region of the North Sea. This formed a process study as part of the NERC North Sea project (1988-89).
The methods were:
1. To survey the frontal region and provide salinity, temperature and current sections by using the ship-mounted acoustic doppler current profiler (ADCP) together with the sea-soar towed vehicle. Some of these sections were to be repeated over a tidal cycle so that tidal currents could be removed from the data and interactions with the tide could be studied. For salinity and temperature, the CTD was to be available as well as the sea-soar, while continuous surface sampling was to run throughout the cruise.
2. To deploy moorings at the sites. These consisted of a current meter string at FA, a current meter string and thermistor chain at FB, an ADCP and thermistor chain at DB. A current meter string for DB was also prepared. Moorings were to be recovered during Challenger cruise 58/89.
3. To deploy and later recover 10 drifting buoys, Argos tracked and Decca position recording, in two groups of 5 spanning the front. 5 of the buoys were to be redeployed for recovery during cruise 58.
4. Photographs of the (standby) radar screen were to be taken for a study of the technique of wave measurement by radar.
All the planned programme work was successfully carried out, except that problems with drifting buoys meant that a proposed redeployment did not take place.
Ship RRS Challenger
Departure Port Great Yarmouth, United Kingdom
Departure Date 1989-07-08
Arrival Port Great Yarmouth, United Kingdom
Arrival Date 1989-07-22
Principal Scientist(s) Ian D James (Proudman Oceanographic Laboratory)
Responsible Organisation Proudman Oceanographic Laboratory
Associated Project(s) North Sea Project
IHB Sea Areas Visited North Sea
Marsden Squares Visited 181;1/216;130/216;131/216;132/216;140/216;141/216;142/216;3
Work Area Description North Sea
Work Area Bounding Polygon 50N,5W; 60N,5W; 60N,5E; 50N,5E; 50N,5W
Southern Limit 50N
Northern Limit 60N
Western Limit 5W
Eastern Limit 5E

Cruise Inventory Datasets

Physical oceanography  
CTD stations Quantity: number of profiles = 51
Description:  
Current meters Quantity: number of stations = 5
Description: 1 month  
Current profiler (eg ADCP) Quantity: track kilometres = 2000
Description: ADCP on ship  
Subsurface temperature and salinity measurements Quantity: track kilometres = 1000
Description: Sear-Soar  
Subsurface temperature measurements Quantity: number of stations = 4
Description:  
Surface drifters/drifting buoys Quantity: number of deployments = 10
Description:  
Surface measurements underway (T,S) Quantity: track kilometres = 2000
Description:  
Transparency (eg transmissometer) Quantity: number of profiles = 50
Description: + 2000 nautical miles continous recording.  
Chemical oceanography  
Oxygen Quantity: number of profiles = 50
Description: + 1000 nautical miles continous observation.  
Biology and fisheries  
Other biological/fisheries measurement Quantity: number of profiles = 50
Description: bioluminescence + 1200 nautical miles continuous, fluorescence.  
Meteorology  
Incident radiation Quantity: activity duration in days = 14
Description:  

Cruise Inventory Mooring/Buoy Operations

No information on datasets is currently available

Summary of BODC Data Holdings for the Cruise

National Oceanographic Database

Summary

# Series Instrument Description Parameters
35 CTD/STD cast Density of the water column
Salinity of the water column
Temperature of the water column
Transmittance and attenuance of the water column
Vertical spatial coordinates
16 CTD/STD cast Density of the water column
Salinity of the water column
Temperature of the water column
Vertical spatial coordinates

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

Full List

BODC Reference Instrument Description Date/Time Location  
818921 CTD/STD cast 1989-07-09 02:11Z 53° 50' N, 0° 18' E Click for more
818933 CTD/STD cast 1989-07-09 03:06Z 53° 55' N, 0° 13' E Click for more
818945 CTD/STD cast 1989-07-09 04:06Z 53° 59' N, 0° 10' E Click for more
818957 CTD/STD cast 1989-07-09 09:35Z 54° 3' N, 0° 16' E Click for more
818969 CTD/STD cast 1989-07-09 13:24Z 54° 9' N, 0° 24' E Click for more
818970 CTD/STD cast 1989-07-09 21:19Z 54° 1' N, 0° 37' E Click for more
818982 CTD/STD cast 1989-07-09 23:55Z 53° 58' N, 0° 18' E Click for more
818994 CTD/STD cast 1989-07-10 00:49Z 54° 1' N, 0° 25' E Click for more
819008 CTD/STD cast 1989-07-10 03:20Z 54° 11' N, 0° 6' E Click for more
819021 CTD/STD cast 1989-07-10 05:54Z 54° 15' N, 0° 12' E Click for more
819033 CTD/STD cast 1989-07-10 06:44Z 54° 11' N, 0° 19' E Click for more
819045 CTD/STD cast 1989-07-10 12:22Z 54° 24' N, 0° 18' E Click for more
819057 CTD/STD cast 1989-07-10 16:27Z 54° 45' N, 0° 55' E Click for more
819069 CTD/STD cast 1989-07-10 18:59Z 54° 49' N, 0° 55' E Click for more
819070 CTD/STD cast 1989-07-10 21:18Z 54° 49' N, 1° 21' E Click for more
819082 CTD/STD cast 1989-07-10 23:40Z 54° 54' N, 1° 3' E Click for more
819094 CTD/STD cast 1989-07-11 02:16Z 55° 0' N, 1° 3' E Click for more
819101 CTD/STD cast 1989-07-11 05:52Z 54° 54' N, 1° 10' E Click for more
819113 CTD/STD cast 1989-07-12 00:32Z 54° 36' N, 0° 46' E Click for more
819125 CTD/STD cast 1989-07-12 02:46Z 54° 36' N, 1° 10' E Click for more
819137 CTD/STD cast 1989-07-13 13:01Z 54° 45' N, 1° 10' E Click for more
819149 CTD/STD cast 1989-07-13 15:30Z 54° 30' N, 1° 10' E Click for more
819150 CTD/STD cast 1989-07-18 12:17Z 54° 54' N, 1° 10' E Click for more
819162 CTD/STD cast 1989-07-18 13:33Z 54° 55' N, 1° 4' E Click for more
819174 CTD/STD cast 1989-07-09 19:41Z 54° 7' N, 0° 25' E Click for more
819186 CTD/STD cast 1989-07-09 20:32Z 54° 4' N, 0° 30' E Click for more
819198 CTD/STD cast 1989-07-09 22:09Z 53° 57' N, 0° 31' E Click for more
819205 CTD/STD cast 1989-07-09 22:57Z 53° 54' N, 0° 25' E Click for more
819217 CTD/STD cast 1989-07-10 01:42Z 54° 4' N, 0° 18' E Click for more
819229 CTD/STD cast 1989-07-10 02:24Z 54° 7' N, 0° 12' E Click for more
819230 CTD/STD cast 1989-07-10 04:08Z 54° 14' N, 0° 0' E Click for more
819242 CTD/STD cast 1989-07-10 05:03Z 54° 18' N, 0° 6' E Click for more
819254 CTD/STD cast 1989-07-10 13:40Z 54° 31' N, 0° 30' E Click for more
819266 CTD/STD cast 1989-07-10 15:06Z 54° 38' N, 0° 43' E Click for more
819278 CTD/STD cast 1989-07-10 19:47Z 54° 49' N, 1° 4' E Click for more
819291 CTD/STD cast 1989-07-10 20:31Z 54° 49' N, 1° 12' E Click for more
819309 CTD/STD cast 1989-07-10 22:05Z 54° 55' N, 1° 21' E Click for more
819310 CTD/STD cast 1989-07-10 22:52Z 54° 55' N, 1° 12' E Click for more
819322 CTD/STD cast 1989-07-11 00:37Z 54° 55' N, 0° 54' E Click for more
819334 CTD/STD cast 1989-07-11 01:26Z 55° 0' N, 0° 55' E Click for more
819346 CTD/STD cast 1989-07-11 04:03Z 55° 0' N, 1° 21' E Click for more
819358 CTD/STD cast 1989-07-11 08:35Z 54° 55' N, 1° 4' E Click for more
819371 CTD/STD cast 1989-07-11 23:44Z 54° 36' N, 0° 37' E Click for more
819383 CTD/STD cast 1989-07-12 01:15Z 54° 36' N, 0° 54' E Click for more
819395 CTD/STD cast 1989-07-12 02:06Z 54° 36' N, 1° 3' E Click for more
819402 CTD/STD cast 1989-07-12 03:39Z 54° 36' N, 1° 20' E Click for more
819414 CTD/STD cast 1989-07-13 12:13Z 54° 49' N, 1° 9' E Click for more
819426 CTD/STD cast 1989-07-13 13:47Z 54° 40' N, 1° 10' E Click for more
819438 CTD/STD cast 1989-07-13 14:35Z 54° 35' N, 1° 10' E Click for more
819451 CTD/STD cast 1989-07-13 16:21Z 54° 25' N, 1° 9' E Click for more
819463 CTD/STD cast 1989-07-13 17:10Z 54° 19' N, 1° 9' E Click for more

Project Database

# Events Gear Type Parameters Held
51 CTD frame plus rosette sampler Transmittance and attenuance of the water column
Density of the water column
Salinity of the water column
Temperature of the water column

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

References

Track Charts

Track Chart

Reports

Cruise Report