Cruise inventory

RRS Challenger CH118C

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS Challenger (74CH)
Cruise identifierCH118C
Cruise period1995-04-27 — 1995-05-12
StatusCompleted
Port of departureGrimsby, United Kingdom
Port of returnGrimsby, United Kingdom
PurposeResearch
Objectives1. To quantify the rates and processes of sediment water exchange of nutrients, trace metals and oxygen in the sediments of the Humber/Wash, Tyne and Tweed regions.
2. To quantify pore water concentration gradients of nutrients and trace metals, the distributions of naturally occurring radionuclides, and the rates of denitrification/nitrification and sulphate reduction within the surficial zone of these sediments.
3. To determine the population density of bioturbating macrofauna within these sediments.
4. To map the distribution of dissolved nutrients, chlorophyll, salinity, temperature, turbidity and fluorescence in the LOIS RACS (C) region.
5. To determine methane concentrations and the abundance of methanotropic bacteria in the water column.
Chief scientistPeter G Watson (Plymouth Marine Laboratory)
ProjectLOIS - RACS
Coordinating bodyNERC/Plymouth Marine Laboratory
Cruise reportRRS Challenger CH118C cruise report ch118c_95.pdf — access key 'C' (1.53 MB) 
Ocean/sea areas 
GeneralNorth Sea
SpecificNorth Sea, Coastal strip from Gt. Yarmouth to Berwick upon Tweed
Track chartsRRS Challenger CH118C cruise track — trk4080.html
Measurements 
Physical oceanography 
Surface measurements underway (T,S)Quantity: activity duration in days = 17
Description: surface underway measurements
CTD stationsQuantity: number of profiles = 52
Description: Neil Brown MKIIIB CTD with attached sensors
Transparency (eg transmissometer)Quantity: activity duration in days = 17
Description: surface underway measurements
Transparency (eg transmissometer)Quantity: number of profiles = 52
Description: CTD sensor
Optics (eg underwater light levels)Quantity: number of profiles = 52
Description: CTD sensor
Current profiler (eg ADCP)Quantity: activity duration in days = 17
Description: shipborne ADCP
Chemical oceanography 
OxygenQuantity: number of profiles = 52
Description: CTD sensor
OxygenQuantity: number of cores = 42
Description: oxygen consumption in sediments
OxygenQuantity: number of cores = 11
Description: oxygen profiles/resistivity of sediment cores
Other dissolved gasesQuantity: number of samples = 75
Description: CH4 and N2O
PhosphateQuantity: activity duration in days = 8
Description: surface measurements underway
PhosphateQuantity: number of cores = 20
Description: microcosm incubation; exchanges and fluxes
NitrateQuantity: activity duration in days = 8
Description: surface underway measurements
NitrateQuantity: number of samples = 10
Description: from non-toxic supply
NitriteQuantity: number of cores = 20
Description: microcosm incubation; exchanges and fluxes
NitriteQuantity: number of samples = 10
Description: from non-toxic supply
AmmoniaQuantity: number of cores = 20
Description: microcosm incubation; exchanges and fluxes
SilicateQuantity: activity duration in days = 8
Description: surface measurements underway
SilicateQuantity: number of cores = 20
Description: microcosm incubation; exchanges and fluxes
RadioactivityQuantity: number of cores = 12
Description: sulphate reduction studies in sediments
RadioactivityQuantity: number of samples = 19
Description: Grab samples for radionuclides in sediments, Sizewell transect
RadioactivityQuantity: number of samples = 8
Description: Surface scrapes for radionuclides in sediment
RadioactivityQuantity: number of samples = 7
Description: filtration for Th234
RadioactivityQuantity: number of cores = 11
Description: sectional cores for radionuclides in sediment
Other chemical oceanographic measurementsQuantity: number of cores = 65
Description: denitrification studies on cores
Other chemical oceanographic measurementsQuantity: number of cores = 11
Description: oxygen profiles/resistivity of sediment cores
Other chemical oceanographic measurementsQuantity: number of cores = 31
Description: redox measurements
Other chemical oceanographic measurementsQuantity: number of cores = 7
Description: resistivity of sediment cores
Contamination 
Suspended matterQuantity: number of samples = 57
Description: gravimetric SPM
Trace metalsQuantity: number of cores = 20
Description: microcosm incubation; exchanges and fluxes
Trace metalsQuantity: number of samples = 5
Description: Sediment scrapes for trace metals
Bottom depositsQuantity: number of samples = 19
Description: Grab samples for radionuclides in sediments, Sizewell transect
Biology and fisheries 
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: activity duration in days = 17
Description: surface underway measurements
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: number of samples = 57
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: number of profiles = 52
Description: CTD sensor
Benthic bacteria/micro-organismsQuantity: number of cores = 20
Description: microcosm incubation; exchanges and fluxes
Benthic bacteria/micro-organismsQuantity: number of cores = 26
Description: benthic microfauna studies
Other biological/fisheries measurementQuantity: number of samples = 10
Description: Sediment scrapes for microfossils
Meteorology 
Incident radiationQuantity: activity duration in days = 17
Description: surface underway measurements
Atmospheric chemistryQuantity: number of samples = 55
Description: atmospheric CH4 and N2O
Geology and geophysics 
GrabQuantity: number of samples = 39
Description: Grab samples for sediment descriptions
GrabQuantity: number of samples = 19
Description: Grab samples for radionuclides in sediments, Sizewell transect
Core - soft bottomQuantity: number of cores = 12
Description: sulphate reduction studies in sediments
Core - soft bottomQuantity: number of samples = 5
Description: Sediment scrapes for trace metals
Core - soft bottomQuantity: number of samples = 8
Description: Surface scrapes for radionuclides in sediment
Core - soft bottomQuantity: number of cores = 11
Description: sectional cores for radionuclides in sediment
Core - soft bottomQuantity: number of cores = 65
Description: denitrification studies on cores
Core - soft bottomQuantity: number of samples = 10
Description: Sediment scrapes for microfossils
Core - soft bottomQuantity: number of cores = 42
Description: oxygen consumption in sediments
Core - soft bottomQuantity: number of cores = 31
Description: redox measurements
Core - soft bottomQuantity: number of cores = 20
Description: microcosm incubation; exchanges and fluxes
Core - soft bottomQuantity: number of cores = 26
Description: benthic microfauna studies
Core - soft bottomQuantity: number of cores = 17
Description: particle size distribution/porosity of sediment
Core - soft bottomQuantity: number of cores = 11
Description: oxygen profiles/resistivity of sediment cores
Core - soft bottomQuantity: number of cores = 7
Description: resistivity of sediment cores
Other geological/geophysical measurementsQuantity: number of cores = 17
Description: particle size distribution/porosity of sediment
Data held at BODC 
Series/Profiles 
30  Bottle station
Quality control flags
Chlorophyll pigment concentrations in water bodies
Vertical spatial coordinates
Phaeopigment concentrations in the water column
Reference numbers
Quality control flags
Chlorophyll pigment concentrations in water bodies
Vertical spatial coordinates
Phaeopigment concentrations in the water column
Reference numbers

BODC idDate/TimeLocationDoc.
16510041995-05-02 13:48 55° 29' 27" N  1° 3' 45" W  View metadata report for BODC series reference number 1651004
16510161995-05-02 17:27 55° 44' 52" N  1° 14' 43" W  View metadata report for BODC series reference number 1651016
16510281995-05-02 21:41 55° 54' 56" N  1° 34' 55" W  View metadata report for BODC series reference number 1651028
16510411995-05-03 17:46 56° 0' 2" N  1° 35' 46" W  View metadata report for BODC series reference number 1651041
16510531995-05-03 20:29 55° 41' 58" N  1° 3' 2" W  View metadata report for BODC series reference number 1651053
16510651995-05-04 14:40 54° 53' 35" N  0° 44' 50" W  View metadata report for BODC series reference number 1651065
16510771995-05-04 16:45 54° 45' 5" N  0° 18' 1" W  View metadata report for BODC series reference number 1651077
16510891995-05-04 18:44 54° 31' 29" N  0° 2' 49" E  View metadata report for BODC series reference number 1651089
16510901995-05-04 21:59 53° 59' 51" N  0° 23' 3" E  View metadata report for BODC series reference number 1651090
16511081995-05-05 15:16 53° 35' 33" N  0° 52' 38" E  View metadata report for BODC series reference number 1651108
16511571995-05-05 22:03 53° 28' 56" N  1° 0' 10" E  View metadata report for BODC series reference number 1651157
16511211995-05-05 17:32 53° 29' 1" N  0° 24' 1" E  View metadata report for BODC series reference number 1651121
16511331995-05-05 18:45 53° 19' 18" N  0° 24' 33" E  View metadata report for BODC series reference number 1651133
16511451995-05-05 20:33 53° 24' 56" N  0° 46' 4" E  View metadata report for BODC series reference number 1651145
16511691995-05-06 13:24 53° 32' 49" N  0° 6' 8" E  View metadata report for BODC series reference number 1651169
16511701995-05-06 17:45 53° 46' 1" N  0° 49' 51" E  View metadata report for BODC series reference number 1651170
16511821995-05-06 18:49 53° 39' 9" N  0° 58' 3" E  View metadata report for BODC series reference number 1651182
16511941995-05-06 21:39 53° 17' 42" N  1° 20' 47" E  View metadata report for BODC series reference number 1651194
16512011995-05-07 14:16 52° 46' 51" N  2° 12' 12" E  View metadata report for BODC series reference number 1651201
16512131995-05-07 16:00 52° 43' 1" N  1° 49' 0" E  View metadata report for BODC series reference number 1651213
16512251995-05-07 17:31 52° 53' 55" N  1° 31' 10" E  View metadata report for BODC series reference number 1651225
16512371995-05-07 19:56 53° 17' 23" N  1° 21' 3" E  View metadata report for BODC series reference number 1651237
16512491995-05-07 22:07 53° 0' 5" N  1° 4' 12" E  View metadata report for BODC series reference number 1651249
16512501995-04-29 16:36 55° 12' 30" N  1° 1' 8" W  View metadata report for BODC series reference number 1651250
16512621995-05-08 15:46 53° 0' 1" N  0° 24' 5" E  View metadata report for BODC series reference number 1651262
16512741995-05-08 17:31 53° 14' 13" N  0° 39' 45" E  View metadata report for BODC series reference number 1651274
16512861995-05-10 06:07 53° 53' 33" N  0° 40' 51" E  View metadata report for BODC series reference number 1651286
16512981995-04-29 20:08 55° 20' 37" N  1° 3' 40" W  View metadata report for BODC series reference number 1651298
16513051995-04-30 19:28 55° 5' 6" N  1° 2' 32" W  View metadata report for BODC series reference number 1651305
16513171995-04-30 22:40 54° 57' 10" N  0° 54' 54" W  View metadata report for BODC series reference number 1651317
52  CTD/STD cast
Density of the water column
Transmittance and attenuance of the water column
Visible waveband radiance and irradiance measurements in the water column
Chlorophyll pigment concentrations in water bodies
Vertical spatial coordinates
Salinity of the water column
Concentration of suspended particulate material in the water column
Temperature of the water column
Density of the water column
Transmittance and attenuance of the water column
Visible waveband radiance and irradiance measurements in the water column
Chlorophyll pigment concentrations in water bodies
Vertical spatial coordinates
Salinity of the water column
Concentration of suspended particulate material in the water column
Temperature of the water column

BODC idDate/TimeLocationDoc.
8404281995-05-04 16:44 54° 45' 6" N  0° 18' 1" W  View metadata report for BODC series reference number 840428
8404411995-05-05 15:12 53° 35' 33" N  0° 52' 38" E  View metadata report for BODC series reference number 840441
8404531995-05-05 22:01 53° 28' 56" N  1° 0' 10" E  View metadata report for BODC series reference number 840453
8404651995-05-06 17:43 53° 46' 1" N  0° 49' 51" E  View metadata report for BODC series reference number 840465
8404771995-05-07 14:15 52° 46' 51" N  2° 12' 12" E  View metadata report for BODC series reference number 840477
8404891995-05-07 16:00 52° 43' 1" N  1° 49' 0" E  View metadata report for BODC series reference number 840489
8404901995-05-07 17:33 52° 53' 55" N  1° 31' 10" E  View metadata report for BODC series reference number 840490
8405081995-05-07 19:52 53° 17' 23" N  1° 21' 3" E  View metadata report for BODC series reference number 840508
8405211995-05-07 22:07 53° 0' 6" N  1° 4' 12" E  View metadata report for BODC series reference number 840521
8405331995-05-08 15:44 53° 0' 1" N  0° 24' 5" E  View metadata report for BODC series reference number 840533
8405451995-05-08 17:28 53° 14' 13" N  0° 39' 45" E  View metadata report for BODC series reference number 840545
8405571995-05-10 06:04 53° 53' 33" N  0° 40' 50" E  View metadata report for BODC series reference number 840557
8405691995-05-10 07:38 53° 45' 8" N  0° 24' 22" E  View metadata report for BODC series reference number 840569
8405701995-05-10 09:11 53° 51' 44" N  0° 3' 56" E  View metadata report for BODC series reference number 840570
8405821995-05-10 12:04 54° 3' 3" N  0° 2' 42" W  View metadata report for BODC series reference number 840582
8405941995-05-10 13:25 54° 7' 28" N  0° 14' 4" E  View metadata report for BODC series reference number 840594
8406011995-05-10 16:49 54° 23' 3" N  0° 2' 53" E  View metadata report for BODC series reference number 840601
8406131995-05-10 18:40 54° 23' 49" N  0° 25' 31" W  View metadata report for BODC series reference number 840613
8406251995-05-10 22:36 54° 33' 37" N  0° 43' 50" W  View metadata report for BODC series reference number 840625
8406371995-05-11 10:52 54° 1' 59" N  0° 31' 1" E  View metadata report for BODC series reference number 840637
8406491995-05-11 13:29 53° 51' 52" N  0° 0' 33" W  View metadata report for BODC series reference number 840649
8406501995-05-11 14:38 53° 43' 28" N  0° 7' 59" E  View metadata report for BODC series reference number 840650
8406621995-04-29 16:32 55° 12' 30" N  1° 1' 9" W  View metadata report for BODC series reference number 840662
8406741995-04-30 22:35 54° 57' 10" N  0° 54' 54" W  View metadata report for BODC series reference number 840674
8406861995-05-02 13:43 55° 29' 26" N  1° 3' 45" W  View metadata report for BODC series reference number 840686
8406981995-05-03 07:04 55° 48' 33" N  1° 50' 51" W  View metadata report for BODC series reference number 840698
8407051995-05-04 07:20 54° 46' 10" N  1° 0' 29" W  View metadata report for BODC series reference number 840705
8407171995-04-28 07:50 55° 9' 24" N  1° 25' 30" W  View metadata report for BODC series reference number 840717
8407291995-04-29 08:32 55° 9' 9" N  1° 29' 36" W  View metadata report for BODC series reference number 840729
8407301995-04-29 12:20 55° 9' 2" N  0° 59' 53" W  View metadata report for BODC series reference number 840730
8407421995-04-29 20:04 55° 20' 37" N  1° 3' 40" W  View metadata report for BODC series reference number 840742
8407541995-04-30 08:13 55° 9' 9" N  1° 4' 59" W  View metadata report for BODC series reference number 840754
8407661995-04-30 19:24 55° 5' 6" N  1° 2' 32" W  View metadata report for BODC series reference number 840766
8407781995-05-01 07:45 55° 9' 6" N  1° 10' 30" W  View metadata report for BODC series reference number 840778
8407911995-05-02 07:26 55° 8' 51" N  1° 17' 35" W  View metadata report for BODC series reference number 840791
8408091995-05-02 17:25 55° 44' 52" N  1° 14' 43" W  View metadata report for BODC series reference number 840809
8408101995-05-02 21:37 55° 54' 55" N  1° 34' 55" W  View metadata report for BODC series reference number 840810
8408221995-05-03 11:04 55° 54' 59" N  2° 4' 48" W  View metadata report for BODC series reference number 840822
8408341995-05-03 17:43 56° 0' 2" N  1° 35' 46" W  View metadata report for BODC series reference number 840834
8408461995-05-03 20:24 55° 41' 58" N  1° 3' 2" W  View metadata report for BODC series reference number 840846
8408581995-05-04 11:59 54° 46' 1" N  1° 0' 50" W  View metadata report for BODC series reference number 840858
8408711995-05-04 14:37 54° 53' 35" N  0° 44' 50" W  View metadata report for BODC series reference number 840871
8408831995-05-04 18:42 54° 31' 29" N  0° 2' 49" E  View metadata report for BODC series reference number 840883
8408951995-05-04 21:55 53° 59' 51" N  0° 23' 3" E  View metadata report for BODC series reference number 840895
8409021995-05-05 17:30 53° 29' 1" N  0° 24' 1" E  View metadata report for BODC series reference number 840902
8409141995-05-05 18:42 53° 19' 18" N  0° 24' 33" E  View metadata report for BODC series reference number 840914
8409261995-05-05 20:30 53° 24' 56" N  0° 46' 4" E  View metadata report for BODC series reference number 840926
8409381995-05-06 09:03 53° 32' 50" N  0° 6' 4" E  View metadata report for BODC series reference number 840938
8409511995-05-06 13:24 53° 32' 49" N  0° 6' 8" E  View metadata report for BODC series reference number 840951
8409631995-05-06 18:48 53° 39' 9" N  0° 58' 3" E  View metadata report for BODC series reference number 840963
8409751995-05-06 21:34 53° 17' 43" N  1° 20' 48" E  View metadata report for BODC series reference number 840975
8409871995-05-07 08:10 52° 41' 43" N  2° 18' 0" E  View metadata report for BODC series reference number 840987
1  Meteorological data logger
Solar Radiation
Horizontal spatial co-ordinates
Date and time
Visible waveband radiance and irradiance measurements in the atmosphere
Solar Radiation
Horizontal spatial co-ordinates
Date and time
Visible waveband radiance and irradiance measurements in the atmosphere

BODC idDate/TimeLocationDoc.
9528121995-04-28 08:02  — 1995-05-11 16:45:30 52° 19' 18" N  2° 16' 59" W — 56° 0' 9" N  2° 19' 15" E  View metadata report for BODC series reference number 952812
1  Pumped water sample
Chlorophyll pigment concentrations in water bodies
Horizontal spatial co-ordinates
Phaeopigment concentrations in the water column
Date and time
Chlorophyll pigment concentrations in water bodies
Horizontal spatial co-ordinates
Phaeopigment concentrations in the water column
Date and time

BODC idDate/TimeLocationDoc.
16776031995-04-29 18:30  — 1995-05-04 02:30 54° 1' 49" N  2° 16' 54" W — 56° 0' 2" N  0° 17' 54" E  View metadata report for BODC series reference number 1677603
1  Ship's non-toxic supply
Transmittance and attenuance of the water column
Chlorophyll pigment concentrations in water bodies
Silicate concentration parameters in the water column
Salinity of the water column
Horizontal spatial co-ordinates
Concentration of suspended particulate material in the water column
Temperature of the water column
Date and time
Phosphate concentration parameters in the water column
Transmittance and attenuance of the water column
Chlorophyll pigment concentrations in water bodies
Silicate concentration parameters in the water column
Salinity of the water column
Horizontal spatial co-ordinates
Concentration of suspended particulate material in the water column
Temperature of the water column
Date and time
Phosphate concentration parameters in the water column

BODC idDate/TimeLocationDoc.
9528241995-04-28 08:02  — 1995-05-11 16:45:30 52° 19' 18" N  2° 16' 59" W — 56° 0' 9" N  2° 19' 15" E  View metadata report for BODC series reference number 952824
1  Single-beam echosounder
Bathymetry and Elevation
Horizontal spatial co-ordinates
Date and time
Bathymetry and Elevation
Horizontal spatial co-ordinates
Date and time

BODC idDate/TimeLocationDoc.
9528001995-04-28 08:02  — 1995-05-11 16:45:30 52° 19' 18" N  2° 16' 59" W — 56° 0' 9" N  2° 19' 15" E  View metadata report for BODC series reference number 952800
Discrete samples 
15  Box coreRedox potential in sediment
Sediment water content, porosity and surface area
Other fluxes between the bed and the water column
Carbon concentrations in sediment
Metadata parameters
Nutrient fluxes between the bed and the water column
Metal fluxes between the bed and the water column
Sediment grain size parameters
Nutrient concentrations in sediment pore waters
Nitrogen concentrations in sediment
Metal concentrations in sediment pore waters
Zoobenthos taxonomic abundance
52  CTD frame plus rosette samplerCarbon concentrations in suspended particulate material
Density of the water column
Transmittance and attenuance of the water column
Visible waveband radiance and irradiance measurements in the water column
Chlorophyll pigment concentrations in water bodies
Salinity of the water column
Concentration of suspended particulate material in the water column
Nitrogen concentrations in suspended particulate material
Temperature of the water column
Phaeopigment concentrations in the water column
Dissolved concentration parameters for other gases in the water column
Concentration of alkanes in the water column
6  MulticorerOther fluxes between the bed and the water column
17  Sample taken from ship's non-toxic supplyCarbon concentrations in suspended particulate material
Chlorophyll pigment concentrations in water bodies
Concentration of suspended particulate material in the water column
Nitrogen concentrations in suspended particulate material
Phaeopigment concentrations in the water column
Dissolved concentration parameters for other gases in the water column
Concentration of alkanes in the water column