Search the data

BODC Cruise Metadata Report for RRS Charles Darwin (74AB) cruise CD110A

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 CD110A
Short name CD110A
Objectives and Narrative The cruise was one of several at approximately 6 monthly intervals for OMEX, focusing on the NW Iberian Shelf and Slope. Aims are to construct and understand the cycles of carbon and associated elements. This involves the transfer of organic carbon, nutrients and other trace elements which may be rapidly deposited to the sediments and buried, and physical processes affecting lateral and vertical transport.


Leg A was primarily concerned with systematic mapping of water properties over the area 41.5 to 43deg N, mooring recovery and deployment and obtaining core and grab samples of the sea bed to derive sediment records and distributions.
Ship RRS Charles Darwin
Departure Port Lisbon, Portugal
Departure Date 1997-12-23
Arrival Port Vigo, Spain
Arrival Date 1998-01-05
Principal Scientist(s) John Huthnance (Proudman Oceanographic Laboratory)
Responsible Organisation Proudman Oceanographic Laboratory
Associated Project(s) Ocean Margin Exchange (OMEX)
IHB Sea Areas Visited North East Atlantic Ocean (limit 40W)
Marsden Squares Visited 145;2/146;1
Work Area Description Continental shelf and slope off NW Portugal and Spain
Work Area Bounding Polygon 40N,15W; 45N,15W; 45N,5W; 40N,5W; 40N,15W
Southern Limit 40N
Northern Limit 45N
Western Limit 15W
Eastern Limit 5W

Cruise Inventory Datasets

Physical oceanography  
Bathythermograph Quantity: number of stations = 57
Description: XBT stations: profiles of T  
CTD stations Quantity: number of stations = 39
Description: CTD stations, almost all with one water bottle sample for salinity calibration (only); profiles of T, S, transmittance (x 2), optical backscatter, fluorescence, dissolved oxygen, downwelling radiance  
Current profiler (eg ADCP) Quantity: activity duration in days = 13
Description: Ship-borne ADCP - current profiles at 10 min, 4 metres  
Optics (eg underwater light levels) Quantity: number of stations = 39
Description: CTD stations, almost all with one water bottle sample for salinity calibration (only); profiles of T, S, transmittance (x 2), optical backscatter, fluorescence, dissolved oxygen, downwelling radiance  
Surface measurements underway (T,S) Quantity: activity duration in days = 12
Description: underway thermosalinograph, PAR, transmittance, fluorescence  
Transparency (eg transmissometer) Quantity: number of stations = 39
Description: CTD stations, almost all with one water bottle sample for salinity calibration (only); profiles of T, S, transmittance (x 2), optical backscatter, fluorescence, dissolved oxygen, downwelling radiance  
Transparency (eg transmissometer) Quantity: activity duration in days = 12
Description: underway thermosalinograph, PAR, transmittance, fluorescence  
Chemical oceanography  
Oxygen Quantity: number of stations = 39
Description: CTD stations, almost all with one water bottle sample for salinity calibration (only); profiles of T, S, transmittance (x 2), optical backscatter, fluorescence, dissolved oxygen, downwelling radiance  
Biology and fisheries  
Phytoplankton Quantity: number of stations = 22
Description: Plankton net hauls, 100m to surface, 40um for phytoplankton  
Phytoplankton pigs (eg chlorophyll, fluorescence) Quantity: number of stations = 39
Description: CTD stations, almost all with one water bottle sample for salinity calibration (only); profiles of T, S, transmittance (x 2), optical backscatter, fluorescence, dissolved oxygen, downwelling radiance  
Phytoplankton pigs (eg chlorophyll, fluorescence) Quantity: activity duration in days = 12
Description: underway thermosalinograph, PAR, transmittance, fluorescence  
Meteorology  
Incident radiation Quantity: activity duration in days = 12
Description: underway thermosalinograph, PAR, transmittance, fluorescence  
Geology and geophysics  
Bottom photography Quantity: number of deployments = 3
Description: Bed-hop camera - sequence of 19-25 bottom photos  
Core - soft bottom Quantity: number of deployments = 4
Description: Multicorer - 3 or 4 cores retained for each drop  
Core - soft bottom Quantity: number of cores = 1
Description: Kasten corer (3 others short, disturbed samples)  
Grab Quantity: number of samples = 46
Description: Grab samples, Shipek grab  

Cruise Inventory Mooring/Buoy Operations

Latitude Longitude Data type Description
42° 40' N 9° 34' W Current meters Current meter mooring (deployed June 1997 on CD105) - acoustic release found but mooring did not rise from bottom - not recovered
42° 40' N 9° 28' W Current profiler (eg ADCP) Bottom mounted ADCP (deployed June 1997 on CD105) - not found
42° 40' N 9° 30' W Current profiler (eg ADCP) Sediment transport and boundary layer equipment (STABLE): lander for near-bed currents, turbulence, suspended sediment profiles
42° 40' N 9° 30' W In-situ seafloor measurement/sampling Sediment transport and boundary layer equipment (STABLE): lander for near-bed currents, turbulence, suspended sediment profiles

Summary of BODC Data Holdings for the Cruise

National Oceanographic Database

Summary

# Series Instrument Description Parameters
1 Bottom Lander (miscellaneous instruments) Date and time
Horizontal velocity of the water column (currents)
Platform or instrument orientation
Sea level
Temperature of the water column
1 Bottom Lander (miscellaneous instruments) Concentration of suspended particulate material in the water column
Date and time
20 CTD/STD cast Chlorophyll pigment concentrations in water bodies
Density of the water column
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
Vertical spatial coordinates
14 CTD/STD cast Chlorophyll pigment concentrations in water bodies
Density of the water column
Raw fluorometer output
Raw light meter 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
Vertical spatial coordinates
Visible waveband radiance and irradiance measurements in the water column
4 CTD/STD cast Chlorophyll pigment concentrations in water bodies
Density of the water column
Raw fluorometer output
Raw light meter 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
Vertical spatial coordinates
1 CTD/STD cast Chlorophyll pigment concentrations in water bodies
Density of the water column
Raw fluorometer output
Raw light meter output
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  
517582 Bottom Lander (miscellaneous instruments) 1997-12-27 11:18Z to 1998-01-14 13:03Z 42° 40' N, 9° 30' W Click for more
517601 Bottom Lander (miscellaneous instruments) 1997-12-28 00:00Z to 1998-01-13 23:00Z 42° 40' N, 9° 30' W Click for more
866695 CTD/STD cast 1998-01-03 21:15Z 42° 0' N, 9° 40' W Click for more
866702 CTD/STD cast 1997-12-24 17:29Z 41° 20' N, 9° 13' W Click for more
866714 CTD/STD cast 1997-12-25 21:46Z 43° 0' N, 9° 24' W Click for more
866726 CTD/STD cast 1997-12-27 20:30Z 42° 9' N, 9° 18' W Click for more
866738 CTD/STD cast 1997-12-28 06:19Z 42° 9' N, 9° 25' W Click for more
866751 CTD/STD cast 1997-12-29 01:03Z 42° 0' N, 9° 27' W Click for more
866763 CTD/STD cast 1997-12-29 09:11Z 41° 48' N, 9° 1' W Click for more
866775 CTD/STD cast 1997-12-30 02:34Z 41° 48' N, 9° 25' W Click for more
866787 CTD/STD cast 1998-01-01 06:07Z 42° 49' N, 9° 24' W Click for more
866799 CTD/STD cast 1998-01-01 09:41Z 42° 50' N, 9° 37' W Click for more
866806 CTD/STD cast 1997-12-30 20:35Z 42° 40' N, 9° 12' W Click for more
866818 CTD/STD cast 1998-01-01 11:33Z 42° 50' N, 9° 43' W Click for more
866831 CTD/STD cast 1997-12-25 14:58Z 43° 0' N, 9° 42' W Click for more
866843 CTD/STD cast 1997-12-28 01:28Z 42° 9' N, 8° 57' W Click for more
866855 CTD/STD cast 1997-12-29 04:40Z 42° 0' N, 9° 16' W Click for more
866867 CTD/STD cast 1997-12-30 16:06Z 42° 20' N, 9° 0' W Click for more
866879 CTD/STD cast 1998-01-03 18:51Z 42° 0' N, 9° 33' W Click for more
866880 CTD/STD cast 1997-12-24 04:55Z 41° 20' N, 9° 0' W Click for more
866892 CTD/STD cast 1997-12-24 13:49Z 41° 20' N, 9° 9' W Click for more
866911 CTD/STD cast 1997-12-25 17:00Z 43° 0' N, 9° 39' W Click for more
866923 CTD/STD cast 1997-12-25 18:59Z 43° 0' N, 9° 31' W Click for more
866935 CTD/STD cast 1997-12-26 17:33Z 42° 40' N, 9° 12' W Click for more
866947 CTD/STD cast 1997-12-27 07:32Z 42° 20' N, 9° 16' W Click for more
866959 CTD/STD cast 1997-12-27 12:05Z 42° 40' N, 9° 29' W Click for more
866960 CTD/STD cast 1997-12-28 02:26Z 42° 9' N, 9° 3' W Click for more
866972 CTD/STD cast 1997-12-28 03:42Z 42° 9' N, 9° 8' W Click for more
866984 CTD/STD cast 1997-12-28 20:52Z 41° 59' N, 9° 40' W Click for more
866996 CTD/STD cast 1997-12-28 23:02Z 42° 0' N, 9° 33' W Click for more
867011 CTD/STD cast 1997-12-29 02:33Z 42° 0' N, 9° 22' W Click for more
867023 CTD/STD cast 1997-12-29 05:25Z 42° 0' N, 9° 13' W Click for more
867035 CTD/STD cast 1997-12-29 07:41Z 42° 0' N, 9° 0' W Click for more
867047 CTD/STD cast 1997-12-29 10:23Z 41° 48' N, 9° 6' W Click for more
867059 CTD/STD cast 1997-12-29 13:53Z 41° 48' N, 9° 9' W Click for more
867060 CTD/STD cast 1997-12-30 04:03Z 41° 48' N, 9° 22' W Click for more
867072 CTD/STD cast 1997-12-30 18:15Z 42° 30' N, 9° 10' W Click for more
867084 CTD/STD cast 1998-01-01 05:12Z 42° 49' N, 9° 19' W Click for more
867096 CTD/STD cast 1998-01-01 07:18Z 42° 49' N, 9° 30' W Click for more
867103 CTD/STD cast 1998-01-01 08:46Z 42° 50' N, 9° 36' W Click for more
867115 CTD/STD cast 1998-01-03 16:28Z 42° 0' N, 9° 26' W Click for more

Project Database

# Events Gear Type Parameters Held
1 Kasten corer Carbon concentrations in sediment
Sediment grain size parameters
1 Shipek grab Carbon concentrations in sediment
Sediment grain size parameters
1 Bottom Lander
16 Sample taken from ship's non-toxic supply Salinity of the water column
60 Expendable Bathythermograph Temperature of the water column
39 CTD frame plus rosette sampler Transmittance and attenuance of the water column
Temperature of the water column
Salinity of the water column
Visible waveband radiance and irradiance measurements in the water column

Density of the water column
Raw light meter output
Raw fluorometer output
Raw suspended particulate material concentration sensor output
Chlorophyll pigment concentrations in water bodies
4 Multicorer Amino acids in sediment
Mineralogical composition

Geological sample radioactivity
Inorganic chemical composition of sediment or rocks
Carbon concentrations in sediment
Nitrogen concentrations in sediment
Sediment grain size parameters

Note: Parameter terms are taken from the BODC Parameter Discovery Vocabulary XML (SKOS)

References

Track Charts

No track charts currently available

Reports

Cruise Report