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BODC Cruise Metadata Report for RRS James Clark Ross (74JC) cruise JR20060216 (JR136, JR137)

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 JR20060216 (JR136, JR137)
Short name JR20060216 (JR136, JR137)
Objectives and Narrative The primary objectives of this cruise on the RRS James Clark Ross was to recover two moorings previously deployed during cruise JR 112/113 (24/1/05- 24/1/05) and also redeploy the two moorings at the same locations. This cruise was run in conjunction with Rothera Biogeochemical Times Series site, involving moorings at ~2 miles offshore as well as another mooring located in the Marguerite Trough, 22 miles from the BAS research station at Rothera. A CTD station was conducted at each of the mooring sites. A 10 station CTD transect was also taken. This involved 6 CTDs across the northern entrance to Marguerite Bay between Adelaide and Alexander Island and 4 CTDs across the entrance to Marguerite Bay running away from the moorings along the Faure Passage.

One 'deep' mooring 22 miles from Rothera research station with a ~840m water column depth and one 'shallow' mooring at Ryder Bay Rothera Biogeochemical Time Series site (RaTS) 2 miles from Rothera with a ~500m water column depth. CTDs were also taken at the mooring sites prior to retrieval. A 10 station CTD transect was also taken with 6 CTDs across the northern entrance to Marguerite Bay between Adelaide and Alexander Island and 4 across Marguerite Bay along the Faure Passage.

Deployment of the shallow mooring containing CTDs, ADCPs, RCM7s, a sediment trap, RCM, temperature recorder (TR) and temperature depth recorder (TDR) all set to record once per hour at the RaTS. Deplyment of the deep mooring containing ADCPs, CTDs, RCM7s, a sediment trap, TR, TDR and Nortek current meter all set to record once per hour.

CTD cast measurements were made using SBE 911plus - temperature and conductivity sensors, altimeter, SBE 42 oxygen sensor and a Chelsea Industries transmissometer. The CTD was in a Rosette frame with Niskin bottles to collect water samples.
Ship RRS James Clark Ross
Departure Port Rothera, Antarctica
Departure Date 2006-02-15
Arrival Port Rothera, Antarctica
Arrival Date 2006-02-17
Principal Scientist(s) Keith Weston (University of East Anglia School of Environmental Sciences)
Responsible Organisation
Associated Project(s)
IHB Sea Areas Visited South Atlantic Ocean
Marsden Squares Visited 522
Work Area Description Marguerite Bay between Adelaide and Alexander Island, Antartica. South Atlantic Ocean.
Work Area Bounding Polygon 70S,70W; 60S,70W; 60S,60W; 70S,60W; 70S,70W
Southern Limit 70S
Northern Limit 60S
Western Limit 70W
Eastern Limit 60W

Cruise Inventory Datasets

Physical oceanography  
CTD stations Quantity: number of stations = 12
Description: CTD measurements made using a SeaBird 911 plus, consisting of temperature and conductivity sensors, an altimeter, an SBE42 oxygen sensor and a Chelsea Instruments transmissometer.  
Current profiler (eg ADCP) Quantity: number of deployments = 2
Description: shallow and deep moorings  
Current profiler (eg ADCP) Quantity: number of recoveries = 2
Description: shallow and deep moorings  
Other physical oceanographic measurements Quantity: number of recoveries = 2
Description: shallow and deep moorings  
Other physical oceanographic measurements Quantity: number of deployments = 2
Description: shallow and deep moorings  
Chemical oceanography  
Ammonia Quantity: number of stations = 12
Description: CTD casts, samples taken from Niskin bottles; nutrients  
Isotopes Quantity: number of stations = 12
Description: CTD casts, samples taken from Niskin bottles; 15NO3- and 18O  
Nitrate Quantity: number of stations = 12
Description: CTD casts, samples taken from Niskin bottles; nutrients  
Nitrite Quantity: number of stations = 12
Description: CTD casts, samples taken from Niskin bottles  
Other chemical oceanographic measurements Quantity: number of stations = 12
Description: CTD casts, samples taken from Niskin bottles; silicic acid, biogenic silica, iodine, XRF and dissolved barium  
Phosphate Quantity: number of stations = 12
Description: CTD casts, samples taken from Niskin bottles; nutrients  
Biology and fisheries  
Dissolved organic matter (inc DOC) Quantity: number of stations = 12
Description: CTD casts, samples taken from Niskin bottles; DOC, DIC and DON  
Particulate organic matter (inc POC, PON) Quantity: number of stations = 12
Description: CTD casts, samples taken from Niskin bottles; POC and PON  
Phytoplankton pigs (eg chlorophyll, fluorescence) Quantity: number of stations = 12
Description: CTD casts, samples taken from Niskin bottles; chlorophyll a  
Sediment traps Quantity: number of deployments = 2
Description: shallow and deep moorings  
Sediment traps Quantity: number of recoveries = 2
Description: shallow and deep moorings  

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
1 Acoustic doppler current profiler Acoustic backscatter in the water column
Date and time
Horizontal velocity of the water column (currents)
Metadata parameters
Platform or instrument orientation
Reference numbers
Vertical spatial coordinates
3 Moored CTD Date and time
Density of the water column
Electrical conductivity of the water column
Moored instrument depth
Reference numbers
Salinity of the water column
Temperature of the water column
1 Water temperature and/or salinity monitor Date and time
Reference numbers
Temperature of the water column
1 Water temperature and/or salinity monitor Date and time
Reference numbers
Sea level
Temperature of the water column

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

Full List

BODC Reference Instrument Description Date/Time Location  
770656 Acoustic doppler current profiler 2006-02-17 11:36Z to 2006-12-17 02:21Z 67° 34' S, 68° 13' W Click for more
775962 Water temperature and/or salinity monitor 2006-02-17 13:59Z to 2006-12-16 21:59Z 67° 34' S, 68° 13' W Click for more
776154 Moored CTD 2006-02-17 13:59Z to 2006-12-16 21:59Z 67° 34' S, 68° 13' W Click for more
776191 Moored CTD 2006-02-17 13:59Z to 2006-12-16 21:59Z 67° 34' S, 68° 13' W Click for more
776222 Moored CTD 2006-02-17 13:59Z to 2006-12-16 21:59Z 67° 34' S, 68° 13' W Click for more
777305 Water temperature and/or salinity monitor 2006-02-17 13:59Z to 2006-12-16 21:59Z 67° 34' S, 68° 13' W Click for more

Project Database

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

References

Track Charts

Track Chart

Reports

Cruise Report