BODC Cruise Metadata Report for RRS James Cook (740H) cruise JC237
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 JC237 |
|---|---|
| Short name | JC237 |
| Objectives and Narrative |
JC237, part of the NERC-funded CLASS programme, focussed on the Whittard Canyon (Celtic Margin), and on the Porcupine Abyssal Plain. Both locations are 'fixed-point observatories' within CLASS, where repeated observations provide insights into how benthic ecosystems change over time, and how they react to both natural and anthropogenic disturbances. The expedition used the latest in deep-sea observing technology (AUV Autosub 5, ROV Isis, DeepGlider) to achieve its goals.
The aims of the expedition were: - To repeat ROV video surveys and AUV-based mapping from 2009 and 2015 to evaluate changes in canyon morphology, benthic community composition and species distribution patterns - To take well-positioned cores (gravity, mega- and ROV pushcores) to increase our knowledge about sediment transport through the canyon - To sample the different rock formations throughout the canyon to enable the construction of a geological map, and to investigate the role of substratum stability on benthic community distribution - To measure the water column structure in the Eastern branch, Explorer and Dangaard Canyon, and to quantify amplitude, velocity and energy fluxes caused by the internal tide - To carry out further habitat mapping at different resolutions in Whittard Canyon, to increase understanding of the system and to test predictive habitat models - To test and apply sideways multibeam mapping, in order to develop a true 3D habitat model of the canyon - To carry out AUV-based photo surveys and detailed ROV-based sampling of benthic fauna at the Porcupine Abyssal Plain. |
| Ship | RRS James Cook |
| Departure Port | Southampton, United Kingdom |
| Departure Date | 2022-08-06 |
| Arrival Port | Southampton, United Kingdom |
| Arrival Date | 2022-09-04 |
| Principal Scientist(s) | Veerle A Huvenne (National Oceanography Centre, Southampton) |
| Responsible Organisation | National Oceanography Centre, Southampton |
| Associated Project(s) | Climate Linked Atlantic Sector Science (CLASS) |
| IHB Sea Areas Visited | Bay of Biscay, North East Atlantic Ocean (limit 40W) |
| Marsden Squares Visited | 145;4/146;3/146;4 |
| Work Area Description | Whittard Canyon, Bay of Biscay, Porcupine Abyssal Plain |
| 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 =
21
Description: CTD casts (temp, sal, oxygen, turbidity, optical backscatter, water samples for eDNA) |
| Current profiler (eg ADCP) |
Quantity:
track kilometres =
4000
Description: ADCP 75kHz recording |
| Biology and fisheries | |
| Biochemical measurements (eg lipids, amino acids) |
Quantity:
number of stations =
5
Description: SAPS filtrations |
| Other biological/fisheries measurement |
Quantity:
track kilometres =
2000
Description: Surface water samples for eDNA |
| Phytoplankton |
Quantity:
track kilometres =
2000
Description: Continuous plankton recorder |
| Geology and geophysics | |
| Bottom photography |
Quantity:
number of dives =
17
Description: ROV dives (video, photography, 116 pushcores, rock samples, voucher specimens of benthic fauna) |
| Core - soft bottom |
Quantity:
number of cores =
6
Description: Mega cores for geology and biogeochemistry |
| Core - soft bottom |
Quantity:
number of cores =
12
Description: Gravity cores |
| Geophysical measurements made at depth |
Quantity:
number of dives =
15
Description: Autosub 5 AUV missions (Norbit multibeam, EdgeTech sidescan sonar, chirp, photography, RoCSI eDNA samples, Temp, Sal, ADCP) |
| 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° 19' N | 9° 47' W | Other physical oceanographic measurements | DeepGlider recovered from 2130m on 1 Sept 2022 |
| 48° 16' N | 9° 38' W | Zoobenthos | 2 Benthic settlement experiments deployed at 332m on 9 Aug 2022 |
| 47° 52' N | 10° 10' W | Zoobenthos | Bathysnap time-lapse photo frame recovered from 4000m on 8 Aug 2022 |
Summary of BODC Data Holdings for the Cruise
National Oceanographic Database
Summary
| # Series | Instrument Description | Parameters |
|---|---|---|
| 21 | CTD/STD cast |
Chlorophyll pigment concentrations in water bodies Concentration of suspended particulate material in the water column Density of the water column Dissolved oxygen parameters in the water column Reference numbers Salinity of the water column Temperature of the water column Transmittance and attenuance 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 | |
|---|---|---|---|---|
| 2202483 | CTD/STD cast | 2022-08-08 01:20Z | 47° 53' N, 10° 10' W | Click for more |
| 2202495 | CTD/STD cast | 2022-08-09 16:07Z | 48° 15' N, 9° 40' W | Click for more |
| 2202502 | CTD/STD cast | 2022-08-11 14:57Z | 48° 40' N, 10° 3' W | Click for more |
| 2202514 | CTD/STD cast | 2022-08-12 10:37Z | 48° 39' N, 10° 2' W | Click for more |
| 2202526 | CTD/STD cast | 2022-08-15 09:51Z | 48° 45' N, 10° 27' W | Click for more |
| 2202538 | CTD/STD cast | 2022-08-19 06:12Z | 48° 24' N, 9° 50' W | Click for more |
| 2202551 | CTD/STD cast | 2022-08-19 07:32Z | 48° 24' N, 9° 50' W | Click for more |
| 2202563 | CTD/STD cast | 2022-08-19 08:45Z | 48° 24' N, 9° 50' W | Click for more |
| 2202575 | CTD/STD cast | 2022-08-19 10:03Z | 48° 24' N, 9° 50' W | Click for more |
| 2202587 | CTD/STD cast | 2022-08-19 11:32Z | 48° 24' N, 9° 50' W | Click for more |
| 2202599 | CTD/STD cast | 2022-08-19 13:46Z | 48° 24' N, 9° 50' W | Click for more |
| 2202606 | CTD/STD cast | 2022-08-19 15:41Z | 48° 24' N, 9° 50' W | Click for more |
| 2202618 | CTD/STD cast | 2022-08-19 17:15Z | 48° 24' N, 9° 50' W | Click for more |
| 2202631 | CTD/STD cast | 2022-08-21 13:43Z | 48° 31' N, 9° 56' W | Click for more |
| 2202643 | CTD/STD cast | 2022-08-21 18:33Z | 48° 39' N, 10° 2' W | Click for more |
| 2202655 | CTD/STD cast | 2022-08-21 20:59Z | 48° 43' N, 10° 6' W | Click for more |
| 2202667 | CTD/STD cast | 2022-08-22 18:40Z | 48° 24' N, 9° 49' W | Click for more |
| 2202679 | CTD/STD cast | 2022-08-23 13:46Z | 48° 34' N, 9° 56' W | Click for more |
| 2202680 | CTD/STD cast | 2022-08-26 12:29Z | 48° 50' N, 16° 30' W | Click for more |
| 2202692 | CTD/STD cast | 2022-08-31 10:55Z | 48° 39' N, 10° 2' W | Click for more |
| 2202711 | CTD/STD cast | 2022-09-01 15:18Z | 48° 19' N, 9° 47' W | Click for more |
Project Database
No data currently held for this cruise in the BODC Project Database
