CEFASb633f99f-8dfa-40bc-93f1-ffea7ffd660a English dataset 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 2025-04-04T01:32:07 EPSG Geodetic Parameter Registry 2022-01-07 revision WGS 84 SmartBuoy observational network - Noordwijk 5 2014-02-20 publication 2025-04-04 revision 2014-02-18 creation CEFAS3045 https://data.cefas.co.uk On the SmartBuoy, surface measurements of plant nutrient concentrations are derived from two instruments. The NAS-3X in-situ nutrient analyser takes hourly measurements of nitrate concentration, while lower frequency (daily) measurements of nitrate and silicate concentration are derived from laboratory analysis of water samples collected and preserved by the WMS-2 water sampler. An estimate of phytoplankton concentration (biomass) is obtained twice per hour using a fluorometer measuring chlorophyll fluorescence. To aid interpretation of these data, SmartBuoy also takes measurements of conductivity, temperature, suspended sediment concentration, light penetration with the ESM2 logger. Data are telemetered every two hours using ORBCOMM satellite telemetry. The Noordwijk 5 SmartBuoy is located at 52.2758 N, 4.3668 E. It started logging in February 2002 and finished in April 2002. 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 Department for Environment, Food and Rural Affairs (DEFRA) defra.helpline@defra.gov.uk owner notPlanned Biochemistry Alga Algal bloom Plankton Chemical in the environment Remote Sensing Advice Aquatic environment Biodiversity Catchment area Climate Coastal environment Ecosystem Estuary Eutrophication Sample Season Sediment Species Taxonomy GEMET, version 1.0 2008-06-01 publication Chlorophyll pigment concentrations in the water column Plankton abundance per unit volume of the water column Dissolved oxygen parameters in the water column Nitrate concentration parameters in the water column Nitrite concentration parameters in the water column Phosphate concentration parameters in the water column Pollution events Optical backscatter Salinity of the water column Temperature of the water column SeaDataNet P02 parameter discovery vocabulary 2011-03-25 revision Phytoplankton Nutrients Suspended particulate material Anthropogenic contamination SeaDataNet P03 parameter discovery vocabulary 2011-03-25 revision Oceanographic geographical features GEMET - INSPIRE themes, version 1.0 2008-06-01 publication Upper epipelagic Epipelagic 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 Public data - no limitations to reuse English oceans 4.00 5.00 52.00 52.50 2002-02-26 2002-04-22 Unknown https://data.cefas.co.uk/view/3045 Cefas Data Portal information The Cefas Data Portal contains metadata records and data sets available to download and connect to in support of our commitment to open science. 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 These deployments form part of the National Marine Monitoring Programme (NMMP) funded by the UK Government's Department for Environment, Food and Rural Affairs (Defra). Buoys have also been deployed as part of short term (up to 3 years) research contracts. Data have been collected using data buoys since November 2000 at a variety of locations in the North Sea, Irish Sea and Celtic Sea. Data are QA'd and archived at Cefas according to a defined SOP. MEDIN 3.1.1