CEFAS8d06aab4-d0c0-484b-9d7e-ddaea99cadf7
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
2024-01-18T12:44:36
EPSG Geodetic Parameter Registry
2022-01-07
revision
WGS 84
Seawater temperature records for the UK Shelf - 05 - Cefas Fisheries Ecology Research Programme
2016-06-27
publication
2024-01-18
revision
2015-01-08
creation
CEFAS3236
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. 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)
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
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
otherRestrictions
noLimitations
otherRestrictions
Public data - no limitations to reuse
English
oceans
-4.50
-3.50
51.50
51.75
1995-07-18
1996-05-11
Delimited
Unknown
https://data.cefas.co.uk/view/3236
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.
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
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.
MEDIN
3.1.1