Identification

Title

Data from the Surface Water Ocean Topography (SWOT-UK) project.

Alternative title(s)

British Oceanographic Data Centre record 10481032257

Abstract

Satellite-derived data and data used for satellite data validation from the SWOT-UK project. Validation sea level elevation data are from tide gauges re-referenced to ETRS89 (WGS84) This data covers the Bristol Channel, Severn estuary and river Severn. The bulk of the data spans the period from the beginning of 2022 to the end of July 2023, but the data used for the validation of the Cryosat2 satellite goes back to 2012. These data came from the Environment Agency and National Network of Regional Coastal Monitoring Programmes (Channel Coastal Observatory) APIs, with three addition Global Navigation Satellite Systems Interferometric Reflectometry (GNSS-IR) systems installed by the project team. The data were transformed to ETRS89 (WGS84) Ellipsoid using a software utility provided by the Ordnance Survey, for comparison to satellite altimetry data. Stations measuring relative to chart or stage datum were corrected to ordnance datum before transformation to ETRS89 (WGS84). The data are supplied as water surface elevation (altitude) in metres, relative to ETRS89 (WGS84) Ellipsoid. These real-time in situ data have not been corrected for atmospheric pressure, to match the total water level measurements of the satellite.

Resource type

dataset

Resource locator

Unique resource identifier

code

EDMED7366

codeSpace

http://www.bodc.ac.uk/

Dataset language

eng

Spatial reference system

authority code

OGP

code identifying the spatial reference system

Classification of spatial data and services

Topic category

oceans

location

elevation

Keywords

Keyword set

keyword value

originating controlled vocabulary

title

reference date

date type

revision

effective date

2009-07-31

Keyword set

keyword value

originating controlled vocabulary

title

reference date

date type

revision

effective date

2023-12-12

Keyword set

keyword value

originating controlled vocabulary

title

reference date

date type

revision

effective date

2012-01-11

Keyword set

keyword value

originating controlled vocabulary

title

reference date

date type

revision

effective date

2020-05-21

Geographic location

West bounding longitude

-4.30

East bounding longitude

-2.20

North bounding latitude

51.85

South bounding latitude

51.10

Extent

Extent group

authority code

title

reference date

date type

revision

effective date

2024-12-11

code identifying the extent

Bristol Channel

Temporal reference

Temporal extent

Begin position

2012-01-01

End position

2023-07-10

Dataset reference date

date type

publication

effective date

2025-02-11

date type

creation

effective date

2024-11-28

date type

revision

effective date

2024-11-28

Frequency of update

asNeeded

Quality and validity

Lineage

This dataset was created by the organisations with the "originator" role in this metadata record following their in-house data processing and quality control procedures. The data were then provided to the British Oceanographic Data Centre (BODC) for long-term archive and data publication in the BODC Published Data LibraryInstrument(s) used to collect data: sea level recorders.

Conformity

Conformity report

specification

title

reference date

date type

publication

effective date

2010-12-08

degree

true

explanation

BODC protocols are based on the Open Archival Information System (OAIS) model enabling BODC to iterate towards compliance with the on-going evolution and development of community requirements including FAIR (Findable,Accessible,Interoperable,Reusable), TRUST (Transparency, Responsibility, User community, Sustainability, Technology) and CARE (Collective Benefit, Authority to Control, Responsibility, Ethics). Data managers quality assure submissions and assemble the metadata necessary for curation. Submissions (as received) are placed in a long-term accession and stored in triplicate across multiple sites. Appropriate data are transferred into a standard internal format with source variable names mapped to controlled vocabularies, documentation assembled, and metadata loaded into BODC databases. Access to these data is through direct request, the BODC website and through partner repositories such as SeaDataNet. Access control is attained by assigning a data policy to each set of data and this policy is used to administer access when data are requested. Discovery metadata is aligned with EU INSPIRE (through MEDIN) and SeaDataNet community standards. Data are converted to open community formats including Ocean Data View ASCII and SeaDataNet NetCDF, with data described using terms from the NERC vocabulary server. BODC submission agreements are documented on the BODC website and customer service is assured with a dedicated requests team that serve data following local regulations including General Data Protection Regulation (GDPR) 2018 and Environmental Information Regulations (EIR) 2004.

Data format

name of format

version of format

Constraints related to access and use

Constraint set

Limitations on public access

Data are freely available to all following agreement to the terms and conditions of a Data Licence

Constraint set

Limitations on public access

Usage restrictions are specified in the terms of the licence

Responsible organisations

Responsible party

contact position

Unknown

organisation name

National Oceanography Centre (Liverpool)

full postal address

Joseph Proudman Building, 6 Brownlow Street

Liverpool

L3 5DA

United Kingdom

telephone number

+44 (0)151 795 4800

email address

enquiries@noc.ac.uk

web address

http://noc.ac.uk

responsible party role

owner

Responsible party

contact position

Unknown

organisation name

National Oceanography Centre (Liverpool)

full postal address

Joseph Proudman Building, 6 Brownlow Street

Liverpool

L3 5DA

United Kingdom

telephone number

+44 (0)151 795 4800

email address

enquiries@noc.ac.uk

web address

http://noc.ac.uk

responsible party role

originator

Responsible party

contact position

Director

organisation name

British Oceanographic Data Centre

full postal address

Joseph Proudman Building

6 Brownlow Street

Liverpool

L3 5DA

United Kingdom

email address

enquiries@bodc.ac.uk

web address

https://www.bodc.ac.uk/

responsible party role

custodian

Responsible party

contact position

Director

organisation name

British Oceanographic Data Centre

full postal address

Joseph Proudman Building

6 Brownlow Street

Liverpool

L3 5DA

United Kingdom

email address

enquiries@bodc.ac.uk

web address

https://www.bodc.ac.uk/

responsible party role

distributor

Metadata on metadata

Metadata point of contact

contact position

Head of Requests

organisation name

British Oceanographic Data Centre

full postal address

Joseph Proudman Building

6 Brownlow Street

Liverpool

L3 5DA

United Kingdom

email address

enquiries@bodc.ac.uk

web address

https://www.bodc.ac.uk/

responsible party role

pointOfContact

Metadata date

2025-02-11T15:28:08

Metadata language