Oceanographic measurements made in support of CASIX

Data set information

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Data holding centreUniversity of Wales, School of Ocean Sciences
CountryUnited Kingdom  United Kingdom
Time period2003
Geographical area

Atlantic Shelf and Irish Sea


Electrical conductivity of the water column; Chlorophyll pigment concentrations in water bodies; Vertical velocity of the water column (currents); Nitrate concentration parameters in the water column; Other meteorological measurements; Phosphate concentration parameters in the water column; Salinity of the water column; Horizontal velocity of the water column (currents); Concentration of suspended particulate material in the water column; Silicate concentration parameters in the water column; Temperature of the water column


Nutrient analysers; discrete water samplers; synthetic aperture radars; elemental analysers; autoanalysers; CTD; current profilers


The purpose of CASIX is to exploit new-generation Earth Observation (EO) data, to advance the science of air-sea interactions and reduce the errors in the prediction of environmental change. The primary goal is to quantify accurately the global air-sea fluxes of CO2, other gases and particles, using state-of-the-art, error-budgeted models. New sensors (MODIS, MERIS) in new satellites (Envisat, Aqua) are giving high precision, high resolution data of atmosphere, ocean boundary layer properties and ocean biogeochemical variables, globally, daily and long term (>5 y). Only by using and assimilating EO data in models can CASIX achieve its goals. CASIX uses evolving, 3-D general circulation models with coupled biology (NPZD and novel schema) of the deep ocean and shelf seas and is developing models for new parameterisations of physically-forced air-sea fluxes. Radically new EO algorithms of CO2 drawdown using SST, SSS (climatological data), chlorophyll concentration and photosynthetic quantum efficiency (proxy from ocean colour data) are being implemented. Novel EO data for sea surface properties (SAR, ASAR) are being used to determine gas transfer velocities with higher precision. CASIX is allied to Atlantic-basin pCO2 measuring programmes (AMT & CAVASSOO) and also exploits pCO2 and NASA-AMT bio-optical databases. CASIX integrates current collaborative research on EO data interpretation (radar, thermal, ocean colour and atmosphere) with new gas transfer and boundary layer research and modelling, to improve the parameterisation of gas fluxes through the ocean surface. CASIX merges the Met Office ocean modelling team and major UK academic research groups, with international links and direct Space Agency support (see links page). It will accelerate the development of new methods of forecasting Earth system climate processes.

OriginatorsUniversity of Wales, School of Ocean Sciences
Data web site
OrganisationUniversity of Wales, School of Ocean Sciences
ContactHead of Department

University of Wales, School of Ocean Sciences
School of Ocean Sciences, University of Wales Bangor, Menai Bridge, Anglesey,
Menai Bridge
LL59 5AB
United Kingdom

Telephone+44 1248 351151
Collating centreBritish Oceanographic Data Centre
Local identifier1021013
Global identifier350
Last revised2009-10-15