BODC Cruise Metadata Report for RRS James Cook (740H) cruise JC136
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 JC136 |
|---|---|
| Short name | JC136 |
| Objectives and Narrative |
Cruise JC136 is associated with a NERC joint standard research grant (NE/K011855/1 and NE/K013513/1) entitled "Influence of population connectivity on depth-dependent diversity of deep-sea marine benthic biota". The aims of this project are to investigate connectivity among deep-sea populations at different depths and spatial scales using: 1) larval dispersal modelling using Lagrangian particle tracking, driven by hydrographic models, 2) population genetics/genomics and 3) benthic community analysis. The aims of cruise JC136 were then to sample a range of sites and depth bands to:
1. obtain physical samples of 4 model organisms for molecular analysis. 2. gather benthic biological survey data for community level analysis. 3. collect oceanographic data to validate high resolution oceanographic models with which we will model larval dispersal. We visited 5 sites in the NE Atlantic (Rockall Bank, George Bligh Bank, Anton Dohrn Seamount, Wyville-Thomson Ridge, and Rosemary Bank) undertaking 27 ROV dives, 12 AUV missions, 43 CTD casts, 2 mooring deployments and equipment trials. All cruise aims were broadly met. We obtained 3630 biological samples, including sufficient depth and site coverage for molecular analysis of 3 target species. We obtained video transect data with sufficient replication and depth stratification from 3 sites and near complete sampling from a 4th. We obtained sufficient oceanographic data to validate our models. In addition, we gathered 5811.66 km2 of seafloor multibeam to contribute to ongoing efforts to map the North Atlantic, including the first multibeam from the Geike Slide and Hebridean Slope Nature Conservation Marine Protected Area (NCMPA). Poor visitbility at the seabed prevented a planned resurvey of the Darwin Mounds Marine Protected Area (MPA) (see JC60). |
| Ship | RRS James Cook |
| Departure Port | Southampton, United Kingdom |
| Departure Date | 2016-05-14 |
| Arrival Port | Southampton, United Kingdom |
| Arrival Date | 2016-06-23 |
| Principal Scientist(s) | Kerry Howell (University of Plymouth School of Marine Science and Engineering), Michelle L Taylor (University of Oxford Department of Zoology) |
| Responsible Organisation | University of Plymouth School of Marine Science and Engineering |
| Associated Project(s) | |
| IHB Sea Areas Visited | North East Atlantic Ocean (limit 40W) |
| Marsden Squares Visited | 145;3/145;4/181/182 |
| Work Area Description | Northeast Atlantic (Rockall Bank, George Bligh Bank, Anton Dohrn Seamount, Wyville-Thomson Ridge and Rosemary Bank). |
| 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 =
43
Description: A CTD Sea-Bird 9plus underwater unit was used that recorded a set of standard parameters of sea water (salinity, temperature, depth) in a binary format. A TRDI WHM 300kHz Lowered Acoustic Doppler Current Profiler (LADCP) was installed in a downward-looking orientation on the CTD frame for measurements of the velocity components. |
| Biology and fisheries | |
| Other biological/fisheries measurement |
Quantity:
number of samples =
3630
Description: A total of 3630 biological samples of four target species were collected for molecular analysis. Sufficient depth and site coverage were achieved for 3 of these species. |
| Other biological/fisheries measurement |
Quantity:
number of dives =
27
Description: Twenty seven ROV dives were undertaken during the course of the cruise for video transects and biological sample collection. |
| Other biological/fisheries measurement |
Quantity:
number of track lines =
42
Description: A total of 42, 750 km long video transects were achieved across five sites using the Isis ROV during the cruise, for the purposes of assessing faunal diversity and community composition. |
| Geology and geophysics | |
| Bottom photography |
Quantity:
number of dives =
27
Description: Twenty seven ROV dives were undertaken during the course of the cruise for video transects and biological sample collection. |
| Bottom photography |
Quantity:
number of track lines =
42
Description: A total of 42, 750 km long video transects were achieved across five sites using the Isis ROV during the cruise, for the purposes of assessing faunal diversity and community composition. |
| Bottom photography |
Quantity:
number of dives =
12
Description: Twelve AUV missions were completed during the cruise to collect multibeam, side scan sonar, and image data. |
| Long/short range side scan sonar |
Quantity:
track kilometres =
89
Description: Side scan and chirp data collected using the EM2040 on Autosub6000, to be processed at BGS, Edinburgh. |
| Long/short range side scan sonar |
Quantity:
number of dives =
12
Description: Twelve AUV missions were completed during the cruise to collect multibeam, side scan sonar, and image data. |
| Multi-beam echosounding |
Quantity:
number of dives =
12
Description: Twelve AUV missions were completed during the cruise to collect multibeam, side scan sonar, and image data. |
| Multi-beam echosounding |
Quantity:
track kilometres =
532
Description: Collected using the ship's system EM120, to be processed at BGS, Edinburgh |
| Multi-beam echosounding |
Quantity:
survey square kilometres =
5811
Description: Multibeam data collected using the ship's systems EM120 (depths greater than 800 m) and EM710 (depths less than 800 m), and the EM2040 on Autosub6000 processed onboard the ship. |
| Multi-beam echosounding |
Quantity:
track kilometres =
83
Description: Collected using the EM2040 on Autosub6000, to be processed at BGS, Edinburgh |
Cruise Inventory Mooring/Buoy Operations
| Latitude | Longitude | Data type | Description |
|---|---|---|---|
| 57° 37' N | 10° 49' E | Current profiler (eg ADCP) | Mooring deployed at 1220 m depth. Equipped with upward-looking TRDI 75kHz ADCPs for measurements of current velocities in the whole water column and 300KHz downward-looking ADCP for measurements in the bottom layer. |
| 57° 36' N | 10° 49' E | Current profiler (eg ADCP) | Mooring deployed at 808 m depth. Equipped with upward-looking TRDI 75kHz ADCPs for measurements of current velocities in the whole water column and 300KHz downward-looking ADCP for measurements in the bottom layer. |
Summary of BODC Data Holdings for the Cruise
National Oceanographic Database
Summary
| # Series | Instrument Description | Parameters |
|---|---|---|
| 1 | Meteorological data logger |
Air pressure Air temperature Atmospheric humidity Date and time Horizontal spatial co-ordinates Raw light meter output Reference numbers Solar Radiation Visible waveband radiance and irradiance measurements in the atmosphere Wind strength and direction |
| 1 | Multi-beam echosounder |
Bathymetry and Elevation Date and time Horizontal platform movement Horizontal spatial co-ordinates Platform or instrument orientation Reference numbers |
| 1 | Multiple instrument types |
Chlorophyll pigment concentrations in water bodies Date and time Electrical conductivity of the water column Horizontal spatial co-ordinates Metadata parameters Raw fluorometer output Raw suspended particulate material concentration sensor output Reference numbers Salinity of the water column Temperature of the water column Transmittance and attenuance 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 | |
|---|---|---|---|---|
| 2012094 | Meteorological data logger | 2016-05-14 08:00Z to 2016-06-22 09:47Z | 49° 51' N to 59° 51' N; 14° 0' W to 0° 59' W | Click for more |
| 2012101 | Multiple instrument types | 2016-05-14 08:00Z to 2016-06-22 09:47Z | 49° 51' N to 59° 51' N; 14° 0' W to 0° 59' W | Click for more |
| 2012113 | Multi-beam echosounder | 2016-05-14 08:00Z to 2016-06-22 09:47Z | 49° 51' N to 59° 51' N; 14° 0' W to 0° 59' W | Click for more |
Project Database
No data currently held for this cruise in the BODC Project Database
