- Resources
- Inventories
- Cruise inventory
- Report
- 9071
RRS James Clark Ross JR20060216 (JR136, JR137)
Cruise summary report
Cruise Info. | |||||||||||||||||
Ship name (ship code) | RRS James Clark Ross (74JC) | ||||||||||||||||
Cruise identifier | JR20060216 (JR136, JR137) | ||||||||||||||||
Cruise period | 2006-02-15 — 2006-02-17 | ||||||||||||||||
Status | Completed | ||||||||||||||||
Port of departure | Rothera, Antarctica | ||||||||||||||||
Port of return | Rothera, Antarctica | ||||||||||||||||
Purpose | Research | ||||||||||||||||
Objectives | 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. | ||||||||||||||||
Chief scientist | Keith Weston (University of East Anglia School of Environmental Sciences) | ||||||||||||||||
Cruise report | (0.83 MB) | ||||||||||||||||
Ocean/sea areas | |||||||||||||||||
General | South Atlantic Ocean | ||||||||||||||||
Specific | Marguerite Bay between Adelaide and Alexander Island, Antartica. South Atlantic Ocean. | ||||||||||||||||
Track charts | (0.07 MB) | ||||||||||||||||
Measurements | |||||||||||||||||
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 | |||||||||||||||||
Phosphate | Quantity: number of stations = 12 Description: CTD casts, samples taken from Niskin bottles; nutrients | ||||||||||||||||
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 | ||||||||||||||||
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 | ||||||||||||||||
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 | ||||||||||||||||
Biology and fisheries | |||||||||||||||||
Phytoplankton pigs (eg chlorophyll, fluorescence) | Quantity: number of stations = 12 Description: CTD casts, samples taken from Niskin bottles; chlorophyll a | ||||||||||||||||
Particulate organic matter (inc POC, PON) | Quantity: number of stations = 12 Description: CTD casts, samples taken from Niskin bottles; POC and PON | ||||||||||||||||
Dissolved organic matter (inc DOC) | Quantity: number of stations = 12 Description: CTD casts, samples taken from Niskin bottles; DOC, DIC and DON | ||||||||||||||||
Sediment traps | Quantity: number of deployments = 2 Description: shallow and deep moorings | ||||||||||||||||
Sediment traps | Quantity: number of recoveries = 2 Description: shallow and deep moorings | ||||||||||||||||
Data held at BODC | Get data | ||||||||||||||||
Series/Profiles | |||||||||||||||||
1 Acoustic doppler current profiler | Reference numbers Date and time Vertical spatial coordinates Platform or instrument orientation Horizontal velocity of the water column (currents) Metadata parameters Acoustic backscatter in the water column Reference numbers Date and time Vertical spatial coordinates Platform or instrument orientation Horizontal velocity of the water column (currents) Metadata parameters Acoustic backscatter in the water column
| ||||||||||||||||
3 Moored CTD | Moored instrument depth Reference numbers Date and time Salinity of the water column Temperature of the water column Density of the water column Electrical conductivity of the water column Moored instrument depth Reference numbers Date and time Salinity of the water column Temperature of the water column Density of the water column Electrical conductivity of the water column
| ||||||||||||||||
2 Water temperature and/or salinity monitor | Reference numbers Date and time Temperature of the water column Sea level
| ||||||||||||||||
Discrete samples | |||||||||||||||||
1 Instrument mooring |