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BODC Cruise Metadata Report for RRS James Clark Ross (74JC) cruise JR19960720 (JR14)

Introduction

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

Cruise Inventory Information

Long name RRS James Clark Ross (74JC) cruise JR19960720 (JR14)
Short name JR19960720 (JR14)
Objectives and Narrative report

1) Complete a hydrographic and geochemical survey sufficient to locate the position of the gyre and describe it fully in terms of hydrography, carbon, oxygen, nutrients, CFC tracers and background SF6.

2) Simultaneously with the survey, deploy sound-source moorings in a "box" pattern surrounding the main Greenland Sea Gyre.

3) Following the survey and moorings, release the tracer and floats over a period of one and a half weeks by a series of short tows near the centre of the gyre.

All of these objectives were achieved. On the first leg, 27 full-depth hydrographic-plus chemistry stations were done in a pattern around the gyre to form the survey, and 7 sound-source moorings were deployed (see fig. 2.1). On the second leg, 320kg of the tracer SF6 was released in a series of streaks aorund the nominal centre of the gyre and (see fig. 3.1, 3.2). Also on this leg, floats were deployed around the same area and a further mooring was set.
Ship RRS James Clark Ross
Departure Port Grimsby, United Kingdom
Departure Date 1996-07-20
Arrival Port Grimsby, United Kingdom
Arrival Date 1996-08-22
Principal Scientist(s) Andrew J Watson (University of East Anglia School of Environmental Sciences)
Responsible Organisation
Associated Project(s) ESOP-2/MAST III
IHB Sea Areas Visited Greenland Sea, North East Atlantic Ocean (limit 40W)
Marsden Squares Visited 181;1/181;3/216;1/217;1/217;3/253;1/253;2/253;3/253;4/287;3/287;4/288;1/288;2/288;3/288;4
Work Area Description
Work Area Bounding Polygon 50N,10W; 80N,10W; 80N,20E; 50N,20E; 50N,10W
Southern Limit 50N
Northern Limit 80N
Western Limit 10W
Eastern Limit 20E

Cruise Inventory Datasets

Physical oceanography  
CTD stations Quantity: number of stations = 30
Description:  
Geochemical tracers (eg freons) Quantity: 30
Description: F113GCTX  
Geochemical tracers (eg freons) Quantity: 30
Description: FR12GCTX  
Geochemical tracers (eg freons) Quantity: 30
Description: FR11GCTX  
Geochemical tracers (eg freons) Quantity: 30
Description: DSF6GCDX  
Neutrally buoyant floats Quantity: 14
Description: 8 sound-source moorings, 6 floats isobaric drifters  
Other physical oceanographic measurements Quantity: number of deployments = 14
Description: horizontal CTD tows, t, S & pressure at 350-440m depth  
Surface drifters/drifting buoys Quantity: 1
Description: +H74 "Carioca" pCO2 drifting buoy  
Surface measurements underway (T,S) Quantity: activity duration in days = 25
Description: +pCO2 and fluorescence  
Water bottle stations Quantity: number of stations = 30
Description: 1 with T only 24 water bottles  
Chemical oceanography  
Alkalinity Quantity: 30
Description:  
Carbon dioxide Quantity: 30
Description: TCO2CBTX  
Carbon dioxide Quantity: 1
Description: +H74 "Carioca" pCO2 drifting buoy  
Nitrate Quantity: 30
Description:  
Other dissolved gases Quantity: 30
Description: QCMXGCTX  
Oxygen Quantity: 30
Description:  
Phosphate Quantity: 30
Description:  
Silicate Quantity: 30
Description:  

Cruise Inventory Mooring/Buoy Operations

Latitude Longitude Data type Description
75° 39' N 4° 36' W Neutrally buoyant floats S08 sound-source mooring, depth 3270m
73° 54' N 5° 30' E Neutrally buoyant floats S09 sound-source mooring, depth 3200m
73° 18' N 0° 9' E Neutrally buoyant floats S10 sound-source mooring, depth 3080m
73° 58' N 5° 36' W Neutrally buoyant floats S11 sound-source mooring, depth 3430m
74° 40' N 0° 1' W Neutrally buoyant floats S12 sound-source mooring, depth 3730m
74° 55' N 9° 3' E Neutrally buoyant floats S13 sound-source mooring
75° 42' N 5° 57' W Neutrally buoyant floats S13 sound-source mooring, depth 3283m
72° 36' N 5° 10' W Neutrally buoyant floats S14 sound-source mooring, depth 2910m
75° 12' N 2° 34' W Neutrally buoyant floats deployment of float 675 isobaric drifter
75° 5' N 1° 16' W Neutrally buoyant floats deployment of float 676 isobaric drifter
75° 19' N 4° 0' W Neutrally buoyant floats deployment of float 677 isobaric drifter
75° 35' N 2° 30' W Neutrally buoyant floats deployment of float 678
75° 19' N 1° 59' W Neutrally buoyant floats deployment of float 679 isobaric drifter
74° 49' N 3° 0' W Neutrally buoyant floats deployment of float 680 isobaric drifter
75° 0' N 2° 58' W Surface drifters/drifting buoys "Carioca" pCO2 drifting buoy

Summary of BODC Data Holdings for the Cruise

National Oceanographic Database

Summary

# Series Instrument Description Parameters
27 CTD/STD cast 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  
604308 CTD/STD cast 1996-07-26 00:20Z 73° 37' N, 3° 6' W Click for more
604321 CTD/STD cast 1996-07-26 14:19Z 74° 3' N, 6° 24' W Click for more
604333 CTD/STD cast 1996-07-26 20:39Z 74° 15' N, 8° 31' W Click for more
604345 CTD/STD cast 1996-07-27 03:26Z 74° 35' N, 6° 45' W Click for more
604357 CTD/STD cast 1996-07-27 08:47Z 75° 0' N, 7° 0' W Click for more
604369 CTD/STD cast 1996-07-27 22:08Z 76° 19' N, 9° 59' W Click for more
604370 CTD/STD cast 1996-07-28 15:10Z 75° 42' N, 5° 42' W Click for more
604382 CTD/STD cast 1996-07-28 20:45Z 75° 44' N, 7° 46' W Click for more
604394 CTD/STD cast 1996-07-29 02:26Z 75° 19' N, 6° 11' W Click for more
604401 CTD/STD cast 1996-07-29 07:58Z 75° 0' N, 4° 59' W Click for more
604413 CTD/STD cast 1996-07-29 13:34Z 74° 36' N, 3° 48' W Click for more
604425 CTD/STD cast 1996-07-29 21:42Z 74° 11' N, 2° 24' W Click for more
604437 CTD/STD cast 1996-07-30 09:25Z 73° 27' N, 0° 24' W Click for more
604449 CTD/STD cast 1996-07-30 16:57Z 73° 0' N, 1° 0' E Click for more
604450 CTD/STD cast 1996-07-31 00:05Z 73° 48' N, 2° 0' E Click for more
604462 CTD/STD cast 1996-07-31 08:42Z 73° 48' N, 2° 0' E Click for more
604474 CTD/STD cast 1996-07-31 18:39Z 74° 23' N, 3° 6' E Click for more
604486 CTD/STD cast 1996-08-01 01:45Z 74° 40' N, 0° 0' E Click for more
604498 CTD/STD cast 1996-08-01 09:21Z 75° 0' N, 1° 1' E Click for more
604505 CTD/STD cast 1996-08-01 15:40Z 75° 0' N, 1° 31' W Click for more
604517 CTD/STD cast 1996-08-01 20:51Z 74° 45' N, 2° 0' W Click for more
604529 CTD/STD cast 1996-08-02 02:16Z 75° 0' N, 3° 0' W Click for more
604530 CTD/STD cast 1996-08-02 07:16Z 75° 22' N, 3° 15' W Click for more
604542 CTD/STD cast 1996-08-02 17:08Z 76° 15' N, 2° 30' W Click for more
604554 CTD/STD cast 1996-08-03 00:29Z 75° 30' N, 1° 0' W Click for more
604566 CTD/STD cast 1996-08-03 04:55Z 75° 15' N, 1° 0' W Click for more
604578 CTD/STD cast 1996-08-03 09:29Z 75° 33' N, 0° 46' E Click for more

Project Database

No data currently held for this cruise in the BODC Project Database

References

Track Charts

No track charts currently available

Reports

No reports currently available