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BODC Cruise Metadata Report for RRS Charles Darwin (74AB) cruise CD174

Introduction

This report collates information from the BODC cruise inventory and oceanographic databases. It presents

Cruise Inventory Information

Long name RRS Charles Darwin (74AB) cruise CD174
Short name CD174
Objectives and Narrative Long (Part 1): Selected landscapes on the outer shelf between Ireland and the Outer Isles west of Scotland surveyed with high resolution profile equipment, including sparker and boomer. The areas surveyed cover a range of topographies typical of the area, including rock platform areas (Stanton Banks), Intrusions (Laconia Bank), iceberg plough-marked seabed (shelf edge), carbonate banks, topographic hollows with soft sediment infill (Malin Deep), active sediment banks and waves Hempton's Turbot Bank and NW Islay. This will allow greater resolution on BGS seabed sediments and Quaternary maps for the area, in particular providing morphological characterization. These surveys will improve the geological mapping resolution, in particular identifying various substrates, and allow extrapolation of the associated seabed habitat using BGS extensive profile database. The data will be integrated with swath survey, video and sample data to be collected by partner organizations within EU Interreg IIIb project MESH and used to test habitat mapping protocols.
Holmes (Parts 2 and 3): MARINE GEOLOGY AND GEOPHYSICS, ADJACENT IRISH AND UK ZONES ROCKALL TROUGH
1. Tie Barra Fan and Donegal Fan seismic stratigraphy to 5 secs two-way time
2. Comparison geological events on west and east flanks Rockall Trough UK and Irish zones
3. Investigation of timing, distribution and style of modern and historical submarine landslides and climate feedback into remobilisation of glacial, interglacial and contouritic sediments
4. Investigation of modern seabed processes in relation to sediment type and seabed features
5. Assessment of mass balance source to sink
Ship RRS Charles Darwin
Departure Port Fairlie, United Kingdom
Departure Date 2005-08-11
Arrival Port Fairlie, United Kingdom
Arrival Date 2005-09-08
Principal Scientist(s) David G Wallis (British Geological Survey Marine Operations)
Responsible Organisation British Geological Survey, Edinburgh
Associated Project(s) Continental Shelf and Margins
IHB Sea Areas Visited Inner Seas off the West Coast of Scotland, North East Atlantic Ocean (limit 40W)
Marsden Squares Visited 181;4/182;3
Work Area Description
Work Area Bounding Polygon 55N,15W; 60N,15W; 60N,5W; 55N,5W; 55N,15W
Southern Limit 55N
Northern Limit 60N
Western Limit 15W
Eastern Limit 5W

Cruise Inventory Datasets

Geology and geophysics  
Gravity measurements Quantity: track kilometres = 5000
Description: Marine gravity meter. Recorded in Ultrasys Long Format and MGD77.  
Magnetic measurements Quantity: track kilometres = 4000
Description: Proton magnetometer recorded in MGD77.  
Single channel seismic reflection Quantity: track kilometres = 500
Description: Surface tow boomer, simultaneously with sparker single channel  
Single channel seismic reflection Quantity: track kilometres = 550
Description: Sparker single channel, simultaneously with surface tow boomer  
Single channel seismic reflection Quantity: survey square kilometres = 20700
Description: EM12 multibeam bathymetry and backscatter, from approximately 500-2500m+ water depth, simultaneously along airgun lines, sparker lines to approximately 1500m water depth, pinger  
Single channel seismic reflection Quantity: track kilometres = 1080
Description: Airgun single channel, from approximately 500-2500m+ water depth, simultaneously with sparker to approx. 1500m water depth, pinger, multibeam  
Single channel seismic reflection Quantity: track kilometres = 200
Description: Sparker single channel, to approximately 1500m water depth only, simultaneously with airgun, pinger, multibeam  
Single channel seismic reflection Quantity: track kilometres = 5500
Description: Pinger 3.5khz, from approximately 500-2500m+ water depth, simultaneously with airgun, sparker to approx. 1500m water depth and multibeam  
Single-beam echosounding Quantity: track kilometres = 5000
Description: Precision echosounder Simrad EA500 recorded in MGD77.  

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 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  
1030251 Multi-beam echosounder 2005-08-30 12:00Z Click for more

Project Database

No data currently held for this cruise in the BODC Project Database

References

Track Charts

Track Chart

Track Chart

Reports

Cruise Report