Cruise inventory

RRS Challenger CH83

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS Challenger (74CH)
Cruise identifierCH83
Cruise period1991-08-04 — 1991-08-19
StatusCompleted
Port of departureGreat Yarmouth, United Kingdom
Port of returnDundee, United Kingdom
PurposeResearch
ObjectivesTo measure the concentrations of major plant nutrients
Chief scientistNick Owens (Plymouth Marine Laboratory)
Ocean/sea areas 
GeneralNorth Sea
SpecificNorth Sea
Measurements 
Physical oceanography 
Surface measurements underway (T,S)Quantity: track kilometres = 7600
Description: UOR
Water bottle stationsQuantity: number of profiles = 61
CTD stationsQuantity: number of profiles = 61
Subsurface temperature and salinity measurementsQuantity: track kilometres = 7600
Description: UOR
Transparency (eg transmissometer)Quantity: track kilometres = 7600
Description: UOR
Optics (eg underwater light levels)Quantity: track kilometres = 7600
Description: UOR
Chemical oceanography 
PhosphateQuantity: track kilometres = 7600
Description: UOR
NitrateQuantity: track kilometres = 7600
Description: UOR
NitriteQuantity: track kilometres = 7600
Description: UOR
AmmoniaQuantity: track kilometres = 7600
Description: UOR
SilicateQuantity: track kilometres = 7600
Description: UOR
Biology and fisheries 
Primary productivityQuantity: number of samples = 133
Description: surface samples collected from pumped water
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: number of samples = 133
Description: surface samples collected from pumped water
Particulate organic matter (inc POC, PON)Quantity: number of samples = 133
Description: surface samples collected from pumped water
PhytoplanktonQuantity: number of samples = 133
Description: surface samples collected from pumped water
Pelagic bacteria/micro-organismsQuantity: number of samples = 133
Description: surface samples collected from pumped water
Other biological/fisheries measurementQuantity: number of samples = 133
Description: surface samples collected from pumped water
Data held at BODC 
Discrete samples 
59  CTD frame plus rosette samplerDensity of the water column
Transmittance and attenuance of the water column
Visible waveband radiance and irradiance measurements in the water column
Raw fluorometer output
Salinity of the water column
Raw light meter output
Temperature of the water column
Dissolved oxygen parameters in the water column