CEFASa981849d-c6b0-440a-8c48-56560f80b6bf English series series Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS) Cefas Lowestoft Laboratory Pakefield Road Lowestoft Suffolk NR33 0HT UK data.manager@cefas.co.uk pointOfContact 2025-09-18T12:17:17 EPSG Geodetic Parameter Registry 2022-01-07 revision WGS 84 Seawater temperature records for the UK Shelf - 04 - Cefas Plankton Analysis System 2016-06-27 publication 2025-09-18 revision 2015-01-08 creation CEFAS3235 https://data.cefas.co.uk This dataset has been extracted as part of an exercise to assemble "all" Cefas Temperature Data and publish it in a Data paper. It is one of 17 Cefas data sources assembled. Sampling of plankton has been carried out by Cefas since the 1940’s. In recent decades sampling has mainly been concentrated on fish eggs and larvae, and other zooplankton. Samples were collected using ‘high–speed towed nets’ that capture plankton from the surface to near–seabed. At each sampling position the sampler was deployed in an oblique tow from the surface to within approximately 2 m of the seabed. Veering and hauling speeds were manually adjusted with the aim of sampling each depth band equally. Since the early 1980’s CTD sensor packages were fitted to the plankton samplers to continuously monitor temperature and salinity throughout each deployment. From 1982 until 2003 the Guildline CTD system was used. Subsequently the ESM2 Profiler/mini CTD Logger (see 3.17) has been used. For each sampler deployment a raw data file was created from the logged values. Data were logged at intervals varying from 2 to 5 seconds. Raw files were subsequently post–processed using custom–written software (two different packages over the time period covered here) to produce calibrated profiles of the environmental values measured. Depending on the software used and level of post–processing undertaken by the operator either the whole profile (i.e. both dive and haul portions of the deployment) or just the dive part of the profile, were derived. Pressure averaged profiles may also have been created where mean values were ‘binned’ into depth bands of 1 m width. Pressure (Depth), Temperature and Conductivity (CTD) profiles collected on Cefas (or DFR) plankton research cruises. The data in this archive broadly cover the European Shelf. Original output files are varied in data format according to the collection system used and the level of post-processing carried out. Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS) Cefas Lowestoft Laboratory Pakefield Road Lowestoft Suffolk NR33 0HT UK data.manager@cefas.co.uk originator Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS) Cefas Lowestoft Laboratory Pakefield Road Lowestoft Suffolk NR33 0HT UK data.manager@cefas.co.uk custodian Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS) Cefas Lowestoft Laboratory Pakefield Road Lowestoft Suffolk NR33 0HT UK data.manager@cefas.co.uk distributor Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS) data.manager@cefas.co.uk owner notPlanned Temperature of the water column SeaDataNet P02 parameter discovery vocabulary 2011-03-25 revision Analysis Monitoring Aquatic environment Climate Coastal environment Season Weather GEMET, version 1.0 2008-06-01 publication Oceanographic geographical features GEMET - INSPIRE themes, version 1.0 2008-06-01 publication Water column SeaVoX Vertical Co-ordinate Coverages 2010-05-18 revision Marine Environmental Data and Information Network MEDIN metadata record availability 2012-01-11 publication data.gov.uk MEDIN metadata record availability 2012-01-11 publication otherRestrictions noLimitations otherRestrictions `Open Government Licence`_ .. _`open government licence`: http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/ English oceans -50.00 20.00 40.00 70.00 1982-04-29 2004-03-08 Delimited Geographic Information System Unknown https://data.cefas.co.uk/view/3235 Cefas Data Portal download The Cefas Data Portal contains metadata records and data sets available to download and connect to in support of our commitment to open science. Data is available in the following formats: CSV, ESRI Shapefile. The data can also be accessed via the WFS and WMS protocols. dataset INSPIRE Data Specification on Oceanographic geographical features – Technical Guidelines 2013-12-10 publication false See the referenced specification Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services 2010-12-08 publication true See the referenced specification Data collected using the lowered CTD rosette system, which is used when the vessel is stationary, provide a vertical profile of the water column. CTD data collected via sensors mounted to the plankton sampler provide an oblique or 'V' shaped profile of the water column. For these surveys, the CTD sensor used was either a Guildline or Falmouth Scientific Instruments Integrated CTD. Instruments were usually calibrated where possible before each survey, in a water bath for temperature and using a pressure test vessel for pressure. Calibrations for salinity were performed with reference to salinity samples collected. The multiple sources are described in 17 separate metadata entries under the same Title, e.g. Seawater temperature records for the UK Shelf - 15 - RV Cefas Endeavour FerryBox Monitoring System. These data have been described in detail via the following publication. Morris, D. J., Pinnegar, J. K., Maxwell, D. L., Dye, S. R., Fernand, L. J., Flatman, S., Williams, O. J., and Rogers, S. I.: Over 10 million seawater temperature records for the United Kingdom Continental Shelf between 1880 and 2014 from 17 Cefas (United Kingdom government) marine data systems, Earth Syst. Sci. Data, 10, 27–51, `https://doi.org/10.5194/essd-10-27-2018`_, 2018. .. _`https://doi.org/10.5194/essd-10-27-2018`: https://doi.org/10.5194/essd-10-27-2018 MEDIN 3.1.1