CTD or Conductivity Temperature Depth stations measure temperature, conductivity and depth of the water column at various depths from the surface to within 10m of the seafloor. A CTD is the oceanographic instrument used to determine the conductivity, temperature, and depth of the ocean. The CTD may be incorporated into an array of Niskin bottles referred to as a carousel or rosette. The sampling bottles close at predefined depths, triggered either manually or by a computer, and the water samples may subsequently be analysed further for biological and chemical parameters. CTD stations have been collected in the greater North Atlantic Ocean area and waters around Ireland. Some CTD stations have been collected in the Norwegian Sea and Caribbean Sea. CTD stations have been collected annually since 1999. CTD's are deployed from the Celtic Explorer research vessel via an engineer working a crane with a scientist in the scientific lab monitoring the observations and measurements as the device descends in the water column. CTD data is useful in monitoring health of the oceans. CTD data is mainly collected by the Oceanographic Services team within Ocean Science and Information Services (OSIS) of the Marine Institute (Ireland). CTD data is complete for each deployment observed.

Data Resources (6)

available as shp
available as CSV
available as KML
available as WMS
available as GML
available as json

Data Resource Preview - Download Shapefile

Theme Environment
Date dataset released 2015-04-30
Date dataset updated 2018-02-12
Dataset conforms to these standards The INSPIRE Directive or INSPIRE lays down a general framework for a Spatial Data Infrastructure (SDI) for the purposes of European Community environmental policies and policies or activities which may have an impact on the environment.
Rights notes ['Creative Commons licence conditions apply', 'https://creativecommons.org/licenses/by/4.0/', 'license', 'https://creativecommons.org/licenses/by/4.0/', 'license']
Update frequency Annual
Language English
Landing Page http://atlas.marine.ie/arcgis/services/OceanFeatures/MapServer/WMSServer?REQUEST=GetMap&SERVICE=WMS&LAYERS=19&VERSION=1.3.0&FORMAT=image/png&CRS=CRS:84&BBOX=-62.24,10.13,18.67,72.63&WIDTH=1000&HEIGHT=1000&STYLES=default
Geographic coverage in GeoJSON format {"type":"Polygon","coordinates":[[[-62.244, 10.1375],[-62.244, 72.63683], [18.676, 72.63683], [18.676, 10.1375], [-62.244, 10.1375]]]}
Spatial Reference Systems (SRS) WGS 84 (EPSG:4326)
Vertical Extent {"maxVerticalExtent": "-1", "verticalDomainName": "sea level", "minVerticalExtent": "-3000"}
Provenance information Marine Institute CTD rosette data collection system and standard operating procedure processing from Seabird SeaSave software into SQL Server database.
Period of time covered (begin) 1999-07-09