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RRS Challenger CH115B

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS Challenger (74CH)
Cruise identifierCH115B
Cruise period1994-10-18 — 1994-10-31
StatusCompleted
Port of departureGrimsby, United Kingdom
Port of returnGrimsby, United Kingdom
PurposeResearch
Objectives1. To quantify the hydrodynamical transports and the processes affecting transformations, interactions and fates of particles, biogeochemically important elements and representative contaminants from land sources to the coastal zone.
2. To provide the first integrated environmental data base for a UK coastal region covering seasonal cycles and interannual variability and incorporating measurements of the fluxes of materials and rates of biological productivity.
3. To generate new quantitative understanding of estuarine and coastal zone processes controlling the fluxes and reactivities of both natural and anthropogenic materials.
4. To provide integratable models of these processes as building blocks for comprehensive coastal zone system models which will realistically predict the effects of future environmental change.
Chief scientistRobin M H Howland (Plymouth Marine Laboratory)
ProjectLOIS - RACS
Coordinating bodyNERC, Plymouth Marine Laboratory (PML)
Cruise reportRRS Challenger CH115B cruise report ch115b_94.pdf (1.29 MB) 
Ocean/sea areas 
GeneralNorth Sea
SpecificUK coastal waters from the Wash to Berwick upon Tweed
Track chartsRRS Challenger CH115B cruise track — trk4003.html
Measurements 
Physical oceanography 
Surface measurements underway (T,S)Quantity: track kilometres = 5000
Description: underway measurements of T,S, transmittance, incident PAR
CTD stationsQuantity: number of profiles = 20
Description: Neil Brown MK IIIB, up/downwelling PAR radiance meters, fluor.,O2
Subsurface temperature and salinity measurementsQuantity: number of deployments = 5
Description: UOR towed at fixed depth; T, cond.,transm.,SPM,fluor.
Transparency (eg transmissometer)Quantity: number of profiles = 20
Description: Neil Brown MK IIIB, up/downwelling PAR radiance meters, fluor.,O2
Optics (eg underwater light levels)Quantity: number of deployments = 5
Description: UOR towed at fixed depth; T, cond.,transm.,SPM,fluor.
Current profiler (eg ADCP)Quantity: track kilometres = 5000
Description: underway shipborne ADCP
Chemical oceanography 
OxygenQuantity: number of profiles = 20
Description: Neil Brown MK IIIB, up/downwelling PAR radiance meters, fluor.,O2
PhosphateQuantity: track kilometres = 5000
Description: underway measurements
NitrateQuantity: track kilometres = 5000
Description: underway measurements
NitriteQuantity: track kilometres = 5000
Description: underway measurements
AmmoniaQuantity: track kilometres = 5000
Description: underway measurement
SilicateQuantity: track kilometres = 5000
Description: underway measurements
Trace elementsQuantity: number of samples = 100
Description: Aluminium determinations from non-toxic supply
RadioactivityDescription: radio isotopes in sediments
IsotopesDescription: radio isotopes in sediments
Other chemical oceanographic measurementsDescription: sulphate reduction in sediments
Contamination 
Suspended matterQuantity: number of samples = 50
Description: gravimetric, chlorophyll, lugol's iodine and formalin
Suspended matterQuantity: number of deployments = 5
Description: UOR towed at fixed depth; T, cond.,transm.,SPM,fluor.
Biology and fisheries 
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: number of samples = 50
Description: gravimetric, chlorophyll, lugol's iodine and formalin
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: number of profiles = 20
Description: Neil Brown MK IIIB, up/downwelling PAR radiance meters, fluor.,O2
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: number of deployments = 5
Description: UOR towed at fixed depth; T, cond.,transm.,SPM,fluor.
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: track kilometres = 5000
Description: underway measurements of fluorescence
Pelagic bacteria/micro-organismsDescription: nitrification/denitrification studies on sediment cores
Benthic bacteria/micro-organismsDescription: nitrification/denitrification studies on sediment cores
Meteorology 
Incident radiationQuantity: track kilometres = 5000
Description: underway measurements of solar radiation
Geology and geophysics 
Core - soft bottomQuantity: number of deployments = 50
Description: box coring
Moorings, landers, buoys 
Physical oceanography 
Transparency (eg transmissometer)53° 5' 35" N  0° 30' 0" E — Mooring laid in Wash approaches for 6 week duration
Other physical oceanographic measurements53° 5' 35" N  0° 30' 0" E — Mooring laid in Wash approaches for 6 week duration
Contamination 
Suspended matter53° 5' 35" N  0° 30' 0" E — Mooring laid in Wash approaches for 6 week duration
Biology and fisheries 
Phytoplankton pigs (eg chlorophyll, fluorescence)53° 5' 35" N  0° 30' 0" E — Mooring laid in Wash approaches for 6 week duration
Data held at BODC Get data
Series/Profiles 
20  CTD/STD cast
Transmittance and attenuance of the water column
Salinity of the water column
Temperature of the water column
Vertical spatial coordinates
Concentration of suspended particulate material in the water column
Visible waveband radiance and irradiance measurements in the water column
Density of the water column
Chlorophyll pigment concentrations in water bodies
Transmittance and attenuance of the water column
Salinity of the water column
Temperature of the water column
Vertical spatial coordinates
Concentration of suspended particulate material in the water column
Visible waveband radiance and irradiance measurements in the water column
Density of the water column
Chlorophyll pigment concentrations in water bodies

BODC idDate/TimeLocationDoc.
8353101994-10-21 10:31 53° 35' 33" N  0° 53' 10" E  View metadata report for BODC series reference number 835310
8353711994-10-24 10:01 55° 8' 58" N  1° 14' 16" W  View metadata report for BODC series reference number 835371
8353831994-10-24 13:25 55° 8' 56" N  1° 0' 2" W  View metadata report for BODC series reference number 835383
8352911994-10-19 15:06 53° 7' 56" N  0° 33' 20" E  View metadata report for BODC series reference number 835291
8353341994-10-23 19:35 54° 56' 50" N  0° 54' 46" W  View metadata report for BODC series reference number 835334
8354021994-10-25 08:26 55° 9' 2" N  1° 4' 49" W  View metadata report for BODC series reference number 835402
8354871994-10-29 18:42 53° 34' 32" N  0° 45' 1" E  View metadata report for BODC series reference number 835487
8353091994-10-20 08:42 52° 41' 16" N  2° 18' 29" E  View metadata report for BODC series reference number 835309
8353221994-10-22 09:53 53° 32' 45" N  0° 6' 15" E  View metadata report for BODC series reference number 835322
8353951994-10-24 17:45 55° 12' 22" N  1° 1' 25" W  View metadata report for BODC series reference number 835395
8354631994-10-28 09:24 55° 48' 17" N  1° 50' 51" W  View metadata report for BODC series reference number 835463
8353581994-10-23 22:55 55° 5' 1" N  1° 2' 59" W  View metadata report for BODC series reference number 835358
8354381994-10-27 09:13 55° 9' 0" N  1° 24' 33" W  View metadata report for BODC series reference number 835438
8354751994-10-29 17:08 53° 35' 13" N  0° 52' 54" E  View metadata report for BODC series reference number 835475
8354141994-10-25 13:54 55° 8' 58" N  1° 10' 23" W  View metadata report for BODC series reference number 835414
8354511994-10-27 15:34 55° 8' 53" N  1° 29' 18" W  View metadata report for BODC series reference number 835451
8354261994-10-26 09:28 55° 8' 59" N  1° 17' 3" W  View metadata report for BODC series reference number 835426
8354991994-10-29 20:56 53° 29' 59" N  0° 39' 59" E  View metadata report for BODC series reference number 835499
8355061994-10-29 23:19 53° 23' 26" N  0° 40' 2" E  View metadata report for BODC series reference number 835506
8353461994-10-23 21:25 54° 55' 55" N  1° 19' 0" W  View metadata report for BODC series reference number 835346
1  Meteorological data logger
Visible waveband radiance and irradiance measurements in the atmosphere
Horizontal spatial co-ordinates
Date and time
Solar Radiation
Visible waveband radiance and irradiance measurements in the atmosphere
Horizontal spatial co-ordinates
Date and time
Solar Radiation

BODC idDate/TimeLocationDoc.
9520491994-10-18 15:00  — 1994-10-31 11:02 52° 40' 56" N  2° 17' 0" W — 56° 0' 20" N  2° 18' 47" E  View metadata report for BODC series reference number 952049
1  Pumped water sample
Horizontal spatial co-ordinates
Date and time
Phaeopigment concentrations in the water column
Chlorophyll pigment concentrations in water bodies
Horizontal spatial co-ordinates
Date and time
Phaeopigment concentrations in the water column
Chlorophyll pigment concentrations in water bodies

BODC idDate/TimeLocationDoc.
16725921994-10-19 20:40  — 1994-10-29 04:24 52° 43' 9" N  2° 16' 7" W — 56° 0' 19" N  2° 12' 4" E  View metadata report for BODC series reference number 1672592
1  Ship's non-toxic supply
Horizontal spatial co-ordinates
Transmittance and attenuance of the water column
Nitrite concentration parameters in the water column
Date and time
Phosphate concentration parameters in the water column
Salinity of the water column
Temperature of the water column
Concentration of suspended particulate material in the water column
Silicate concentration parameters in the water column
Nitrate concentration parameters in the water column
Chlorophyll pigment concentrations in water bodies
Horizontal spatial co-ordinates
Transmittance and attenuance of the water column
Nitrite concentration parameters in the water column
Date and time
Phosphate concentration parameters in the water column
Salinity of the water column
Temperature of the water column
Concentration of suspended particulate material in the water column
Silicate concentration parameters in the water column
Nitrate concentration parameters in the water column
Chlorophyll pigment concentrations in water bodies

BODC idDate/TimeLocationDoc.
9520501994-10-18 15:00  — 1994-10-31 11:02 52° 40' 56" N  2° 17' 0" W — 56° 0' 20" N  2° 18' 47" E  View metadata report for BODC series reference number 952050
1  Single-beam echosounder
Horizontal spatial co-ordinates
Date and time
Bathymetry and Elevation
Horizontal spatial co-ordinates
Date and time
Bathymetry and Elevation

BODC idDate/TimeLocationDoc.
9520371994-10-18 15:00  — 1994-10-31 11:02 52° 40' 56" N  2° 17' 0" W — 56° 0' 20" N  2° 18' 47" E  View metadata report for BODC series reference number 952037
Discrete samples 
57  Box coreZoobenthos taxonomic abundance
Other fluxes between the bed and the water column
Redox potential in sediment
Nutrient concentrations in sediment pore waters
Nutrient fluxes between the bed and the water column
Sediment water content, porosity and surface area
Metal fluxes between the bed and the water column
Metadata parameters
Sediment grain size parameters
Metal concentrations in sediment pore waters
Nitrogen concentrations in sediment
Carbon concentrations in sediment
23  CTD frame plus rosette samplerTransmittance and attenuance of the water column
Salinity of the water column
Temperature of the water column
Concentration of suspended particulate material in the water column
Carbon concentrations in suspended particulate material
Nitrogen concentrations in suspended particulate material
Visible waveband radiance and irradiance measurements in the water column
Density of the water column
Chlorophyll pigment concentrations in water bodies
49  Day grab
73  Sample taken from ship's non-toxic supplyConcentration of suspended particulate material in the water column
Carbon concentrations in suspended particulate material
Nitrogen concentrations in suspended particulate material
Phaeopigment concentrations in the water column
Chlorophyll pigment concentrations in water bodies
Dissolved metal concentrations in the water column
5  Undulating Oceanographic Recorder Tow