RV Corystes COR8/02

Cruise summary report

Search the Cruise Inventory

Cruise Info.

Ship name (ship code)

RV Corystes (74RY)

Cruise identifier

COR8/02

Cruise period

2002-06-26 — 2002-07-09

Status

Completed

Port of departure

Lowestoft, United Kingdom

Port of return

Lowestoft, United Kingdom

Purpose

Research

Objectives

The work was directed toward:
a) a better understanding of the circulation processes of the southern and central North Sea in order to characterise the transport of nutrients from UK waters;
b) improved knowledge of the processes that determine areas of strong phytoplankton production in the vicinity of the Frisian Front.

The main sampling aims of the cruise were:
1) Deploy free-floating satellite tracked buoys in order to determine the Lagrangian circulation. Subsequently, a number may be retrieved.
2) To undertake Scanfish and CTD surveys to collect information on the water column structure in relation to nutrient and plankton dynamics.
3) Conduct productivity experiments and assess nutrient uptake.

Chief scientist

Kenneth J Medler (Centre for Environment, Fisheries and Aquaculture Science Lowestoft Laboratory)

Cruise report

(0.48 MB)

Ocean/sea areas

General

North Sea

Specific

southern North Sea

Track charts

(0.43 MB)

Measurements

Physical oceanography

Surface measurements underway (T,S)

Quantity: activity duration in days = 12
Description: Logged near-surface hull PRT and salinity

Water bottle stations

Quantity: number of samples = 160
Description: Near-surface samples for chlorophyll, salinity and nutrients analyses

CTD stations

Quantity: number of stations = 15
Description: Vertical CTD profiles with PAR, SPM, chlorophyll sensors

Subsurface temperature and salinity measurements

Quantity: track kilometres = 2230
Description: Scanfish undulating towed body with temperature, conductivity, PAR and chlorophyll sensors

Optics (eg underwater light levels)

Quantity: number of stations = 15
Description: Vertical CTD profiles with PAR, SPM, chlorophyll sensors

Current profiler (eg ADCP)

Quantity: activity duration in days = 12
Description: Underway current profiling - vessel mounted ADCP

Chemical oceanography

Oxygen

Quantity: number of stations = 15
Description: General oceanics sampler to collect samples during ascent at each CTD station for calibration of sensors plus nutrients analyses

Phosphate

Quantity: number of stations = 15
Description: General oceanics sampler to collect samples during ascent at each CTD station for calibration of sensors plus nutrients analyses

Nitrate

Quantity: number of stations = 15
Description: General oceanics sampler to collect samples during ascent at each CTD station for calibration of sensors plus nutrients analyses

Nitrite

Quantity: number of stations = 15
Description: General oceanics sampler to collect samples during ascent at each CTD station for calibration of sensors plus nutrients analyses

Ammonia

Quantity: number of stations = 15
Description: General oceanics sampler to collect samples during ascent at each CTD station for calibration of sensors plus nutrients analyses

Silicate

Quantity: number of stations = 15
Description: General oceanics sampler to collect samples during ascent at each CTD station for calibration of sensors plus nutrients analyses

Contamination

Suspended matter

Quantity: number of stations = 15
Description: General oceanics sampler to collect samples during ascent at each CTD station for calibration of sensors plus nutrients analyses

Suspended matter

Quantity: number of stations = 15
Description: Vertical CTD profiles with PAR, SPM, chlorophyll sensors

Biology and fisheries

Phytoplankton pigs (eg chlorophyll, fluorescence)

Quantity: number of stations = 15
Description: General oceanics sampler to collect samples during ascent at each CTD station for calibration of sensors plus nutrients analyses

Phytoplankton pigs (eg chlorophyll, fluorescence)

Quantity: number of stations = 15
Description: Vertical CTD profiles with PAR, SPM, chlorophyll sensors

Geology and geophysics

Core - soft bottom

Quantity: number of cores = 30
Description: Seabed samples for sediment chlorophyll and pore water nutrients analyses

Moorings, landers, buoys

Physical oceanography