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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. Diurnal and seasonal changes in water temperature in South Wales estuaries and saltmarshes. Data were collected in 1995 and 1996 from three estuarine locations in South Wales during a study of the thermal experience and tolerance of estuarine animals. The data comprise hourly records of temperature in brackish water where the depth is <1 metre at low tide. Three point locations in the Loughor Estuary, Oxwich Bay (Nicholstan Pill) and Swansea Bay (Black Pill) in South Wales. Positions were Loughor (51° 37.82’ N, 04° 13.54’ W), Oxwich Bay (51° 34.18’N, 04° 08.68’W) and Swansea Bay (51° 35.92’ N, 03° 59.61’ W) (WGS84, Plate carrée).
Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS)
| Other details | ||
| Internal code | Internally assigned metadata identifier | 10143 |
| 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. | Seawater temperature records for the UK Shelf - 05 - Cefas Fisheries Ecology Research Programme |
| 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. | CEFAS8d06aab4-d0c0-484b-9d7e-ddaea99cadf7 |
| Resource Identifier | This is the code assigned by the data owner. | CEFAS3236 |
| 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 | 1995-07-18 |
| End date | This describes the date the resource ends. This may only be the year if month and day are not known | 1996-05-11 |
| 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. | 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. Diurnal and seasonal changes in water temperature in South Wales estuaries and saltmarshes. Data were collected in 1995 and 1996 from three estuarine locations in South Wales during a study of the thermal experience and tolerance of estuarine animals. The data comprise hourly records of temperature in brackish water where the depth is <1 metre at low tide. Three point locations in the Loughor Estuary, Oxwich Bay (Nicholstan Pill) and Swansea Bay (Black Pill) in South Wales. Positions were Loughor (51° 37.82’ N, 04° 13.54’ W), Oxwich Bay (51° 34.18’N, 04° 08.68’W) and Swansea Bay (51° 35.92’ N, 03° 59.61’ W) (WGS84, Plate carrée). |
| Lineage | Lineage includes the background information, history of the sources of data, data quality statements and methods. | Point records, recorded hourly. Sensors fixed to bed of estuary or salt-marsh creek with less than one metre depth at low spring tides. Resolution and Accuracy. VEMCO Minilog temperature recorder (Bedford, Nova Scotia, Canada) with resolution of ±0.1°C . Accuracy has been established in laboratory tests as ±0.3°C. Data checked for outliers from the expected frequency and amplitude of variation by comparing absolute values with values generated by loess smoothing (various spans). Tidal model used to confirm the low probability that recorder was exposed to the air at low spring tides following deployment. The depth-averaged model of the Bristol and English Channel was built with an unstructured triangular mesh, using the hydrodynamic software Telemac2D (v6p3) [1]. The model domain extends 52.48°N – 48.02°N and 9.51°W – 2.23°E. The unstructured mesh was discretised with 279,087 nodes and 544,356 elements. The mesh has a resolution of approximately 3km along the open boundaries and 500m along the coastlines. Bathymetry for the area was sourced from the DEFRA Digital Elevation Model (Astrium). The resolution of this dataset is 1 arc second (~30m) and referenced to Chart Datum. The hydrodynamics are forced along the open boundaries using 11 tidal constituents (M2, S2, N2, K2, K1, O1, P1, Q1, M4, MS4 and MN4) from the OSU TPXO European Shelf 1/30° regional model [2]. The model is validated against 12 tide gauges sourced from the British Oceanographic Data Centre [3] at the following locations: St Mary’s, Newlyn, Devonport, Weymouth, Portsmouth, Newhaven, Dover, Milford Haven, Ilfracombe, Mumbles, Hinkley Point and St Heliers. The locations of the tide gauges are shown in Figure 31. Harmonic analysis of the model results shows good validation between the model and the tide gauges. The model was run for the period 17/07/1995 00:00 to 06/11/1996 00:00, with free surface elevations recorded hourly. For comparison with the temperature loggers, free surface elevations were extracted from the model results at the three locations: Oxwich (51° 33.90’ N, 04° 08.26’ W), Blackpill (51° 35.60’ N, 03° 58.51’ W) and Loughor (51° 38.99’ N, 04° 13.56’ W). The model’s free surface is referenced to variation around the sea surface. To use the model results with the temperature logger data, the free surfaces are transformed and referenced to the seabed. 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. |
| Related keywords | ||
| Keyword | General subject area(s) associated with the resource, uses multiple controlled vocabularies | Temperature of the water column |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Oceanographic geographical features | |
| 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 | |
| Geographical coverage | ||
| North | The northern-most limit of the data resource in decimal degrees | 51.75 |
| East | The eastern-most limit of the data resource in decimal degrees | -3.5 |
| South | The southern-most limit of the data resource in decimal degrees | 51.5 |
| West | The western-most limit of the data resource in decimal degrees | -4.5 |
| 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 | |
| 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 | |
| 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 | |
| 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 | |
| Role | The owner is the person or organisation that owns the resource. | owner |
| Organisation name | Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS) | |
| Resource locators | ||
| Locator URL | Web address (URL) that links to the resource | https://data.cefas.co.uk/view/3236 |
| Locator name | Name of the web resource | Cefas Data Portal |
| Dataset constraints | ||
| 20.1 Limitations on Public Access - Access constraints | Any restrictions imposed on accessing the resource such as the need to agree to certain licence conditions. | otherRestrictions |
| 20.2 Limitations on Public Access - Other constraints | https://inspire.ec.europa.eu/metadata-codelist/LimitationsOnPublicAccess/ | |
| https://inspire.ec.europa.eu/metadata-codelist/LimitationsOnPublicAccess/ | ||
| 21.1 Conditions for Access and Use - Use constraints | Any restrictions imposed on accessing the resource such as the need to agree to certain licence conditions. | otherRestrictions |
| 21.2 Conditions for Access and Use - Other constraints | http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_19139_Schemas/resources/codelist/gmxCodelists.xml#MD_RestrictionCode | |
| http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_19139_Schemas/resources/codelist/gmxCodelists.xml#MD_RestrictionCode | ||
| Version info | ||
| Date of last revision | The most recent date that the resource was revised. | 2022-03-30 |
| Date of creation | The date that the resource was created. | 2015-01-08 |
| Metadata date | The date when the content of this metadata record was last updated. | 2022-03-30 |
| 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 |
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