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Metadata: Dissolved oxygen, temperature and salinity measurements in coastal and estuarine waters in the UK from 1990 to 2018
Abstract:
Data on dissolved oxygen, temperature and salinity in estuarine and coastal waters were obtained from field-based monitoring programmes in England, Scotland, Wales and Northern Ireland under EU Directives (the Water Framework Directive, WFD, the Urban Waste Water Treatment Directive, UWWTD, and the Nitrates Directive, ND). These data have been held in institutional databases, and used in national and regional assessments of ecological or environmental status, which describe summary statistics and overall outcomes using physical, chemical and biological parameters/indicators and generally do not present the underlying data. For recent work on trends in dissolved oxygen concentrations in UK waters from 1990 to 2018 (Painting et al. in prep), the raw data on dissolved oxygen (DO) concentrations and all supporting metadata (e.g. latitude, longitude, water column depth, sample depth, temperature, salinity) for coastal and estuarine waters were extracted from institutional databases and combined into one dataset, which is provided here.
Data holder:
Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS)
| Other details | ||
| Internal code | Internally assigned metadata identifier | 10431 |
| Title | The title is used to provide a brief and precise description of the dataset such as 'Date', 'Originating organisation/programme', 'Location' and 'Type of survey'. All acronyms and abbreviations should be reproduced in full. | Dissolved oxygen, temperature and salinity measurements in coastal and estuarine waters in the UK from 1990 to 2018 |
| File Identifier | The File Identifier is a code, preferably a GUID, that is globally unique and remains with the same metadata record even if the record is edited or transferred between portals or tools. | CEFASa80276c4-6456-4c28-b4db-1778853a044d |
| Resource Identifier | This is the code assigned by the data owner. | CEFAS21463 |
| Resource type | The resource type will likely be a dataset but could also be a series (collection of datasets with a common specification) or a service. | dataset |
| Start date | This describes the date the resource starts. This may only be the year if month and day are not known | 1970-01-01 |
| End date | This describes the date the resource ends. This may only be the year if month and day are not known | 2026-04-19 |
| Frequency of updates | This describes the frequency with which the resource is modified or updated i.e. a monitoring programme that samples once per year has a frequency that is described as 'annually'. | notPlanned |
| Abstract | The abstract provides a clear and brief statement of the content of the resource. | Data on dissolved oxygen, temperature and salinity in estuarine and coastal waters were obtained from field-based monitoring programmes in England, Scotland, Wales and Northern Ireland under EU Directives (the Water Framework Directive, WFD, the Urban Waste Water Treatment Directive, UWWTD, and the Nitrates Directive, ND). These data have been held in institutional databases, and used in national and regional assessments of ecological or environmental status, which describe summary statistics and overall outcomes using physical, chemical and biological parameters/indicators and generally do not present the underlying data. For recent work on trends in dissolved oxygen concentrations in UK waters from 1990 to 2018 (Painting et al. in prep), the raw data on dissolved oxygen (DO) concentrations and all supporting metadata (e.g. latitude, longitude, water column depth, sample depth, temperature, salinity) for coastal and estuarine waters were extracted from institutional databases and combined into one dataset, which is provided here. |
| Lineage | Lineage includes the background information, history of the sources of data, data quality statements and methods. | Sampling was carried out during fieldwork by the Environment Agency (EA), Natural Resources Wales (NRW), the Scottish Environmental Protection Agency (SEPA) and the Department of Agriculture, Environment and Rural Affairs (DAERA) in Northern Ireland. Data were collected and quality assured following agreed protocols in the UK’s Coordinated Environmental Monitoring Programme (CEMP). All fieldwork was conducted using boat- or shore- based sampling. Sampling and analytical methods followed standard procedures and guidelines, as described in reports and scientific publications (e.g. Best et al 2007, Greenwood et al 2010, Queste et al 2013). All methods were based on SCA (1979) protocols, with traceable quality assurance (QA) and external QA, e.g. through QUASIMEME (Quality Assurance of Information on Marine Environmental Monitoring in Europe), although methods have changed since the 1990's. For the EA, for example, physical samples were originally collected, preserved with a mercury solution and analysed later in the lab using Winkler titrations. Spot or semi continuous data were obtained for development and calibration of probes. The National Laboratory Service (NLS) then moved to sensor-based monitoring. Data were collected from survey vessel/s using an Idronaught instrument with a dissolved oxygen (DO) probe (diffusion initially, then optical), typically as spot samples from about 1-2m (lowered or from a pump supply). DO was measured as percentage saturation and concentration (mg/l) using daily in air calibration and 6 monthly laboratory zeroing if necessary. Close to shore, data were collected with a YSI instrument with a DO probe. Waterbodies are defined by the European Union’s Water Framework Directive, of which there are 743 around Scotland, Wales and England, ranging in size from 0.02km2 to 183,331.20 km2. Waterbodies are grouped into 29 regions. Water samples were available from 208 of the waterbodies and 25 regions References: Best M, Wither AW, Coates S (2007) Dissolved oxygen as a physico-chemical supporting element in the Water Framework Directive. Mar Pollut Bull 55:53–64. doi: `10.1016/j.marpolbul.2006.08.037`_ Foden J, Devlin MJ, Mills DK, Malcolm SJ (2011) Searching for undesirable disturbance: an application of the OSPAR eutrophication assessment method to marine waters of England and Wales. Biogeochemistry 106:157–175. doi: `10.1007/s10533-010-9475-9`_ Greenwood N, Parker ER, Fernand L, et al (2010) `Detection of low bottom water oxygen concentrations in the North Sea; implications for monitoring and assessment of ecosystem health`_. Biogeosciences. pp 1357–1373 Queste BY, Fernand L, Jickells TD, Heywood KJ (2013) Spatial extent and historical context of North Sea oxygen depletion in August 2010. Biogeochemistry 113:53–68. doi: `10.1007/s10533-012-9729-9`_ SCA (1979). Standing Committee of Analysts. `Dissolved oxygen in natural and waste waters: methods for the examination of waters and associated materials`_ . Her Majesty's Stationery Office, London. ISBN 0 11 751442 X Smith AF, Fryer RJ, Webster L, et al (2014) Setting background nutrient levels for coastal waters with oceanic influences. Estuar Coast Shelf Sci 145:69–79. doi: `10.1016/j.ecss.2014.04.006`_ .. _`10.1016/j.marpolbul.2006.08.037`: https://pubmed.ncbi.nlm.nih.gov/17074369/ .. _`10.1007/s10533-010-9475-9`: https://link.springer.com/article/10.1007/s10533-010-9475-9 .. _`detection of low bottom water oxygen concentrations in the north sea; implications for monitoring and assessment of ecosystem health`: https://bg.copernicus.org/articles/7/1357/2010/ .. _`10.1007/s10533-012-9729-9`: https://pubmed.ncbi.nlm.nih.gov/32355379/ .. _`dissolved oxygen in natural and waste waters: methods for the examination of waters and associated materials`: https://openlibrary.org/books/OL10046769M/DissolvedOxygeninNaturalandWasteWaters(MethodsfortheExaminationofWatersAssociatedMater .. _`10.1016/j.ecss.2014.04.006`: https://www.sciencedirect.com/science/article/abs/pii/S0272771414000948 |
| Related keywords | ||
| Keyword | General subject area(s) associated with the resource, uses multiple controlled vocabularies | Dissolved oxygen parameters in the water column |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Monitoring | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Coastal environment | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Estuary | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Habitats and biotopes | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Water column | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Marine Environmental Data and Information Network | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | data.gov.uk | |
| Geographical coverage | ||
| North | The northern-most limit of the data resource in decimal degrees | 61.5 |
| East | The eastern-most limit of the data resource in decimal degrees | 3 |
| South | The southern-most limit of the data resource in decimal degrees | 49 |
| West | The western-most limit of the data resource in decimal degrees | -11 |
| Responsible organisations | ||
| Role | The point of contact is person or organisation with responsibility for the creation and maintenance of the metadata for the resource. | pointOfContact |
| Organisation name | Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS) | |
| Delivery point | Cefas Lowestoft Laboratory, Pakefield Road | |
| Postal code | NR33 0HT | |
| City | Lowestoft | |
| Administrative area | Suffolk | |
| Country | UK | |
| data.manager@cefas.co.uk | ||
| Role | The originator is the person or organisation who created, collected or produced the resource. | originator |
| Organisation name | Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS) | |
| Delivery point | Cefas Lowestoft Laboratory, Pakefield Road | |
| Postal code | NR33 0HT | |
| City | Lowestoft | |
| Administrative area | Suffolk | |
| Country | UK | |
| data.manager@cefas.co.uk | ||
| Role | The custodian is the person or organisation that accepts responsibility for the resource and ensures appropriate care and maintenance. If a dataset has been lodged with a Data Archive Centre for maintenance then this organisation is be entered here. | custodian |
| Organisation name | Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS) | |
| Delivery point | Cefas Lowestoft Laboratory, Pakefield Road | |
| Postal code | NR33 0HT | |
| City | Lowestoft | |
| Administrative area | Suffolk | |
| Country | UK | |
| data.manager@cefas.co.uk | ||
| Role | The distributor is the person or organisation that distributes the resource. | distributor |
| Organisation name | Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS) | |
| Delivery point | Cefas Lowestoft Laboratory, Pakefield Road | |
| Postal code | NR33 0HT | |
| City | Lowestoft | |
| Administrative area | Suffolk | |
| Country | UK | |
| data.manager@cefas.co.uk | ||
| Resource locators | ||
| Locator URL | Web address (URL) that links to the resource | https://data.cefas.co.uk/view/21463 |
| Locator name | Name of the web resource | Cefas Data Portal |
| Dataset constraints | ||
| 20.1 Limitations on Public Access - Access constraints | This states `otherRestrictions` from ISO vocabulary RestrictionCode and is an INSPIRE/GEMINI requirement. | otherRestrictions |
| 20.2 Limitations on Public Access - Other constraints | noLimitations | |
| 21.1 Conditions for Access and Use - Use constraints | This states `otherRestrictions` from ISO vocabulary RestrictionCode and is an INSPIRE/GEMINI requirement. | otherRestrictions |
| 21.2 Conditions for Access and Use - Other constraints | https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/ | |
| Version info | ||
| Date of publication | The publication date of the resource or if previously unpublished the date that the resource was made publicly available via the MEDIN network. | 2023-08-09 |
| Date of last revision | The most recent date that the resource was revised. | 2025-09-25 |
| Date of creation | The date that the resource was created. | 2022-05-06 |
| Harvest date | The date which this record has been (re)harvested from the provider. | 2026-04-19 |
| Metadata date | The date when the content of this metadata record was last updated. | 2025-09-25 |
| Metadata standard name | The name of the metadata standard used to create this metadata | MEDIN |
| Metadata standard version | The version of the MEDIN Discovery Metadata Standard used to create the metadata record | 3.1.1 |