BODC Cruise Metadata Report for RRS Discovery cruise DY072
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 Discovery cruise DY072 |
|---|---|
| Short name | DY072 |
| Objectives and Narrative |
The goal of the Passive Imaging of the Lithosphere Asthenosphere Boundary (PILAB) project is a better understanding of the tectonic plate. The PI-LAB experiment will image the crust and mantle at the same location using a variety of geophysical methods with multiple scales of resolution and sensitivity to determine the defining mechanism of the tectonic plate. Specifically, the project will use passive source seismology and magnetotellurics to image the crust and upper most mantle beneath 0 M.y. to 80 M.y. aged seafloor from the slow spreading Mid-Atlantic Ridge near the Chain and Romanche Fracture Zones.
The cruise was to retrieve 39 broadband ocean bottom seismometers and 39 magnetotelleuric instruments that were deployed in March 2016. Before retrieval, we surveryed in the seismic stations to determien precise locations. We also collected gravity, multibeam bathymetry, sidescan sonar, and magnetics. Finally, we completed a survery of the Chain Fracture Zone to better constrain local tectonics. |
| Ship | RRS Discovery |
| Departure Port | Santa Cruz de Tenerife, Spain |
| Departure Date | 2017-02-28 |
| Arrival Port | Santa Cruz de Tenerife, Spain |
| Arrival Date | 2017-04-02 |
| Principal Scientist(s) | Catherine A Rychert (University of Southampton School of Ocean and Earth Science) |
| Responsible Organisation | National Oceanography Centre, Southampton |
| Associated Project(s) | |
| IHB Sea Areas Visited | North East Atlantic Ocean (limit 40W), South Atlantic Ocean |
| Marsden Squares Visited | 1/2/3/300/301/302/38/4/74 |
| Work Area Description | Central Atlantic |
| 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
| Geology and geophysics | |
|---|---|
| Gravity measurements |
Quantity:
number of surveys =
1
Description: Underway geophysical survey of the western end of the Chain Fracture zone. Swath bathymetry, swath sidescan sonar, gravity and total field magnetics measurements. |
| Long/short range side scan sonar |
Quantity:
number of surveys =
1
Description: Underway geophysical survey of the western end of the Chain Fracture zone. Swath bathymetry, swath sidescan sonar, gravity and total field magnetics measurements. |
| Magnetic measurements |
Quantity:
number of recoveries =
37
Description: Ocean bottom magnetotelluric instruments (OBMT) |
| Magnetic measurements |
Quantity:
number of surveys =
1
Description: Underway geophysical survey of the western end of the Chain Fracture zone. Swath bathymetry, swath sidescan sonar, gravity and total field magnetics measurements. |
| Multi-beam echosounding |
Quantity:
number of surveys =
1
Description: Underway geophysical survey of the western end of the Chain Fracture zone. Swath bathymetry, swath sidescan sonar, gravity and total field magnetics measurements. |
| Other geological/geophysical measurements |
Quantity:
number of recoveries =
38
Description: Broadband ocean bottom seismometers (OBS) |
Cruise Inventory Mooring/Buoy Operations
No information on datasets is currently available
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 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 |
| 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 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 | |
|---|---|---|---|---|
| 1816985 | Multi-beam echosounder | 2017-02-28 20:40Z to 2017-04-02 10:29Z | 2° 25' S to 28° 27' N; 19° 29' W to 6° 36' W | Click for more |
| 1816997 | Meteorological data logger | 2017-02-28 20:40Z to 2017-04-02 10:29Z | 2° 25' S to 28° 27' N; 19° 29' W to 6° 36' W | Click for more |
| 1817000 | Multiple instrument types | 2017-02-28 20:40Z to 2017-04-02 10:29Z | 2° 25' S to 28° 27' N; 19° 29' W to 6° 36' W | Click for more |
Project Database
No data currently held for this cruise in the BODC Project Database
