BODC Cruise Metadata Report for RRS James Cook (740H) cruise JC125 (JC124, JC126)
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 Cook (740H) cruise JC125 (JC124, JC126) |
|---|---|
| Short name | JC125 (JC124, JC126) |
| Objectives and Narrative |
JC124-125-126 focussed on the Whittard Canyon, south-west of Ireland and the UK.Submarine canyons are the main transport pathways between the shelf and the deep sea, and are often considered biodiversity hotspots. Their irregular topography provides different niches for a large variety in faunal communities. However, studying these communities and the underlying processes is a major challenge. Whittard Canyon has several sections with near-vertical or overhanging walls. Using the ROV Isis and AUV Autosub6000, we were be able to obtain a correct picture of these environments in true 3D.
The aims of the cruise were: - To carry out further habitat mapping at different resolutions in Whittard Canyon, to increase understanding of the system and to test the predictive habitat models built within CODEMAP using data from 2009 - To test and apply sideways multibeam mapping, in order to develop a true 3D habitat model of the canyon - To revisit key habitats in the canyon in order to establish potential changes over the last 6 years. - To measure the water column structure in the Eastern Branch of Whittard Canyon, to allow the inclusion of oceanographic parameters in the predictive habitat models. Besides the overall CODEMAP aspect, there were two additional short sections to this expedition. JC124 comprised 3 days at the start of the cruise, and 2 days later on, aimed at collecting seabed data for the UK Government (DEFRA, JNCC and CEFAS) in the rMCZ 'Haig Fras' and 'The Canyons'. Also for this work we used the AUV and ROV - the Canyons are located directly next to Whittard Canyon. The work there will be integrated with the Whittard Canyon work. JC126 covered 3 days at the end of the cruise, and was aimed at the technical trials of a novel vibrocoring system for the ROV. |
| Ship | RRS James Cook |
| Departure Port | Southampton, United Kingdom |
| Departure Date | 2015-08-09 |
| Arrival Port | Southampton, United Kingdom |
| Arrival Date | 2015-09-12 |
| Principal Scientist(s) | Jennifer A Gales (University of Plymouth, School of Biological and Marine Sciences), Russell B Wynn (National Oceanography Centre, Southampton), Veerle A Huvenne (National Oceanography Centre, Southampton) |
| Responsible Organisation | National Oceanography Centre, Southampton |
| Associated Project(s) | Compex Deep-sea Environments: Mapping habitat heterogeneity As Proxy for Biodiversity (CODEMAP) |
| IHB Sea Areas Visited | Celtic Sea, North East Atlantic Ocean (limit 40W) |
| Marsden Squares Visited | 145;4/146;3/181;2 |
| Work Area Description | Haig Fras. Whittard Canyon. |
| 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 profiles =
20
Description: CTD casts |
| Current profiler (eg ADCP) |
Quantity:
track kilometres =
4000
Description: ADCP 75kHz recording |
| Other physical oceanographic measurements |
Quantity:
activity duration in days =
21
Description: Seaglider deployment |
| Other physical oceanographic measurements |
Quantity:
number of profiles =
2
Description: SVP |
| Biology and fisheries | |
| Biochemical measurements (eg lipids, amino acids) |
Quantity:
number of stations =
6
Description: SAPS filtrations |
| Geology and geophysics | |
| Bottom photography |
Quantity:
number of dives =
27
Description: ROV dives |
| Core - soft bottom |
Quantity:
number of cores =
14
Description: Piston cores |
| Core - soft bottom |
Quantity:
number of cores =
2
Description: Boxcores |
| Core - soft bottom |
Quantity:
number of cores =
8
Description: Mega cores for geology and biogeochemistry |
| Geophysical measurements made at depth |
Quantity:
number of deployments =
15
Description: Autosub6000 missions |
| Multi-beam echosounding |
Quantity:
survey square kilometres =
4000
Description: EM120 and EM710 multibeam data |
| Single channel seismic reflection |
Quantity:
track kilometres =
4000
Description: SBP120 track |
Cruise Inventory Mooring/Buoy Operations
| Latitude | Longitude | Data type | Description |
|---|---|---|---|
| 48° 46' N | 10° 28' W | Eggs and larvae | Larval trap for Acesta excavata |
| 48° 39' N | 10° 1' W | Eggs and larvae | Larval trap for Acesta excavata |
Summary of BODC Data Holdings for the Cruise
National Oceanographic Database
Summary
| # Series | Instrument Description | Parameters |
|---|---|---|
| 2 | Multi-beam echosounder |
Bathymetry and Elevation Horizontal spatial co-ordinates Reference numbers |
Note: Parameter terms are taken from the BODC Parameter Discovery Vocabulary XML (SKOS)
Full List
| BODC Reference | Instrument Description | Date/Time | Location | |
|---|---|---|---|---|
| 2027020 | Multi-beam echosounder | 2015-08-14 01:23Z | Click for more | |
| 2027032 | Multi-beam echosounder | 2015-08-15 02:05Z | Click for more |
Project Database
No data currently held for this cruise in the BODC Project Database
