BODC Cruise Metadata Report for RRS James Clark Ross (74JC) cruise JR20090114 (JR224)
Introduction
This report collates information from the BODC cruise inventory and oceanographic databases. It presents
- Cruise Inventory Information
- A summary of BODC data holdings for the cruise from the
- References - including cruise tracks and cruise reports
Cruise Inventory Information
| Long name | RRS James Clark Ross (74JC) cruise JR20090114 (JR224) |
|---|---|
| Short name | JR20090114 (JR224) |
| Objectives and Narrative | JR224 was the first of three cruises funded as part of the 'Chemosynthetically-driven Ecosystems South of the Polar Front: Biogeography and Ecology' consortium programme (ChEsSo). The consortium comprises the National Oceanography Centre, Southampton, the British Antarctic Survey, the Institute of Zoology, and the universities of Bristol and Newcastle. The main aim of this cruise was to constrain hydrothermal vent and cold seep locations in the East Scotia Sea, so that the second consortium cruise can go directly to them and carry out detailed investigations using the Isis remotely-operated vehicle. The cruise was very successful in constraining hydrothermal vent locations on both the East Scotia Ridge and the South Sandwich volcanic arc. A mound investigated in the South Sandwich forearc appears not to be a mud volcano, as previously thought, but evidence of methane seepage was found at a location on the South Georgia continental shelf. An additional significant discovery was a previously unknown, hydrothermally active, submerged caldera adjacent to a seamount that is part of the South Sandwich volcanic arc. |
| Ship | RRS James Clark Ross |
| Departure Port | Punta Arenas, Chile |
| Departure Date | 2009-01-14 |
| Arrival Port | Stanley, Falkland Islands (Malvinas) |
| Arrival Date | 2009-02-19 |
| Principal Scientist(s) | Robert D Larter (British Antarctic Survey) |
| Responsible Organisation | British Antarctic Survey |
| Associated Project(s) | Chemosynthetically-driven Ecosystems South of the Polar Front: Biogeography and Ecology (ChEsSO) |
| IHB Sea Areas Visited | South Atlantic Ocean, Southern Ocean |
| Marsden Squares Visited | 482;4/483/484/518/519 |
| Work Area Description | East Scotia Sea, around southern part of South Sandwich Island Arc, southwestern part of South Georgia continental shelf and eastern margin of Shag Rocks microcontinental block. |
| Unable to lookup cruise bounds at this time | |
| Work Area Bounding Polygon | |
| Southern Limit | unknown |
| Northern Limit | unknown |
| Western Limit | unknown |
| Eastern Limit | unknown |
Cruise Inventory Datasets
| Physical oceanography | |
|---|---|
| CTD stations |
Quantity:
number of stations =
537
Description: Seabird CTD, C, T, O2, Tx, light scattering, fluorometer, PAR |
| Current profiler (eg ADCP) |
Quantity:
activity duration in days =
7
Description: RDI 75 kHz ADCP |
| Subsurface temperature and salinity measurements |
Quantity:
activity duration in days =
2
Description: BRIDGET towed platform, T, C, light scattering, Tx, O2 |
| Surface measurements underway (T,S) |
Quantity:
activity duration in days =
35
Description: BAS oceanlogger, temperature, conductivity |
| Water bottle stations |
Quantity:
number of stations =
45
Description: Niskin bottles on CTD, sampled for methane, trace metals, nutrients, Fe/Mn & PO4 |
| Biology and fisheries | |
| Acoustic reflection on marine organisms. |
Quantity:
activity duration in days =
26
Description: Kongsberg EK60, backscatter amplitudes at 38, 120 and 200 kHz |
| Pelagic bacteria/micro-organisms |
Quantity:
number of stations =
9
Description: Filtered samples from Niskin bottles, for DGGE and clone library analyses |
| Meteorology | |
| Routine standard measurements |
Quantity:
activity duration in days =
35
Description: BAS oceanlogger, temperature, pressure, wind speed and direction |
| Geology and geophysics | |
| Bottom photography |
Quantity:
activity duration in hours =
96
Description: Seabed High Resolution IMaging Platform (SHRIMP), sea-floor video imagery |
| Core - soft bottom |
Quantity:
number of stations =
2
Description: Box cores, for organic geochemistry and sedimentation rate |
| Magnetic measurements |
Quantity:
activity duration in days =
5
Description: SeaSpy proton precession magnetometer, total field |
| Magnetic measurements |
Quantity:
activity duration in days =
33
Description: BAS shipboard three-component magnetometer, x-y-z components of field |
| Multi-beam echosounding |
Quantity:
activity duration in days =
33
Description: Kongsberg EM120, water depth and backscatter amplitude |
| Other geological/geophysical measurements |
Quantity:
activity duration in days =
33
Description: TOPAS PS018 parametric sub-bottom profiler, reflection amplitude and travel time |
| Single-beam echosounding |
Quantity:
activity duration in days =
33
Description: Kongsberg EA600, water depth and reflection amplitude |
Cruise Inventory Mooring/Buoy Operations
No information on datasets is currently available
Summary of BODC Data Holdings for the Cruise
National Oceanographic Database
No data currently held for this cruise in the BODC National Oceanographic Database
Project Database
No data currently held for this cruise in the BODC Project Database
