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Metadata: Morphodynamic Modelled Outputs for the Mawddach Estuary
Abstract:
This report summarises the third stage of a modelling research study undertaken by Bangor University, investigating the hydrodynamic and morphodynamic response of representative Welsh estuaries (which include both past and potential future changes to the estuaries, as well as their present form) to a range of mean and extreme climatic conditions. In particular, coastal flood risk and potential for erosion and accretion has been assessed through the medium of high resolution computational models. The Mawddach estuary lies within the Snowdonia National Park, north Wales, and its landscape and environment represents one of the key natural assets which Wales possesses. The purpose of this data capture was to investigate the response of the estuary to future tidal and atmospheric changes. The model has also been used to investigate the response of the estuarine dynamics to potential management strategies such as embankment re-alignment and re-location.
Data holder:
Centre for Applied Marine Sciences (CAMS)
Natural Resources Wales (NRW)
Click on the red button for resource contact details:
- Click on the red button for resource contact details
| Other details | ||
| Internal code | Internally assigned metadata identifier | 8773 |
| 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. | Morphodynamic Modelled Outputs for the Mawddach Estuary |
| Alternative title | The purpose of alternative title is to record any additional names by which the dataset may be known. | Development of a morphodynamic model of the Mawddach Estuary to inform future management decisions |
| 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. | NRW_DS114564 |
| Resource Identifier | This is the code assigned by the data owner. | 4f4c4942-4343-5764-6473-313134353634 |
| 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 | 1977-01-01 |
| End date | This describes the date the resource ends. This may only be the year if month and day are not known | 2010-12-31 |
| Spatial resolution | This describes the spatial resolution of the dataset or the spatial limitations of the service. | 10 |
| Spatial resolution unit | This describes the unit of spatial resolution which for distance must be metres. | urn:ogc:def:uom:EPSG::9001 |
| 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'. | asNeeded |
| Abstract | The abstract provides a clear and brief statement of the content of the resource. | This report summarises the third stage of a modelling research study undertaken by Bangor University, investigating the hydrodynamic and morphodynamic response of representative Welsh estuaries (which include both past and potential future changes to the estuaries, as well as their present form) to a range of mean and extreme climatic conditions. In particular, coastal flood risk and potential for erosion and accretion has been assessed through the medium of high resolution computational models. The Mawddach estuary lies within the Snowdonia National Park, north Wales, and its landscape and environment represents one of the key natural assets which Wales possesses. The purpose of this data capture was to investigate the response of the estuary to future tidal and atmospheric changes. The model has also been used to investigate the response of the estuarine dynamics to potential management strategies such as embankment re-alignment and re-location. |
| Lineage | Lineage includes the background information, history of the sources of data, data quality statements and methods. | A mathematical model of the Mawddach Estuary has been developed to reproduce the interactions of tidal and fresh water hydrodynamics within the estuary and surrounding low lying areas. The model is based on a TELEMAC Modelling System which calculates the temporal and spatial variations in hydrodynamics (e.g. elevations, velocities, pressure, density) and sediment transport through a finite-element model grid (an unstructured mesh of nodes connected in a triangular framework) which represents the bathymetry of the area. Input data to the model includes bathymetric data from Admiralty charts and LIDAR data. Three grids have been produced against which different scenarios can be modelled. 1) 2-D model of the present day Mawddach Estuary 2) Alterations to represent the past and future 3) Alterations to remove the embankments upstream of Penmaenpool The project extends two previous modelling studies in other representative Welsh estuaries, namely the Dyfi Estuary in mid Wales (Robins, 2009a) and the Burry Inlet in south Wales (Robins, 2009b). |
| Related keywords | ||
| Keyword | General subject area(s) associated with the resource, uses multiple controlled vocabularies | Elevation |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | morphodynamics | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Mawddach Estuary | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | TELEMAC | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | environmental modelling | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Bathymetry and Elevation | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Coastal geomorphology | |
| Geographical coverage | ||
| North | The northern-most limit of the data resource in decimal degrees | 52.7704157 |
| East | The eastern-most limit of the data resource in decimal degrees | -3.90952571 |
| South | The southern-most limit of the data resource in decimal degrees | 52.6741221 |
| West | The western-most limit of the data resource in decimal degrees | -4.09321189 |
| Regional sea | water column | |
| GWYNEDD - GWYNEDD | ||
| 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 | Natural Resources Wales (NRW) | |
| Delivery point | Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales | |
| enquiries@naturalresourceswales.gov.uk | ||
| URL | http://naturalresources.wales/?lang=en | |
| Role | The owner is the person or organisation that owns the resource. | owner |
| Organisation name | Centre for Applied Marine Sciences (CAMS) | |
| Delivery point | Centre for Applied Marine Sciences, Marine Science Laboratories, Bangor University, Menai Bridge, Ynys Mon, LL59 5AB | |
| enquiries@cams.bangor.ac.uk | ||
| URL | http://www.cams.bangor.ac.uk/ | |
| Role | The owner is the person or organisation that owns the resource. | owner |
| Organisation name | Natural Resources Wales (NRW) | |
| Delivery point | Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales | |
| enquiries@naturalresourceswales.gov.uk | ||
| URL | http://naturalresources.wales/?lang=en | |
| 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 Applied Marine Sciences (CAMS) | |
| Delivery point | Centre for Applied Marine Sciences, Marine Science Laboratories, Bangor University, Menai Bridge, Ynys Mon, LL59 5AB | |
| enquiries@cams.bangor.ac.uk | ||
| URL | http://www.cams.bangor.ac.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 | Natural Resources Wales (NRW) | |
| Delivery point | Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales | |
| enquiries@naturalresourceswales.gov.uk | ||
| URL | http://naturalresources.wales/?lang=en | |
| Role | The originator is the person or organisation who created, collected or produced the resource. | originator |
| Organisation name | Centre for Applied Marine Sciences (CAMS) | |
| Delivery point | Centre for Applied Marine Sciences, Marine Science Laboratories, Bangor University, Menai Bridge, Ynys Mon, LL59 5AB | |
| enquiries@cams.bangor.ac.uk | ||
| URL | http://www.cams.bangor.ac.uk/ | |
| Role | The distributor is the person or organisation that distributes the resource. | distributor |
| Organisation name | Natural Resources Wales (NRW) | |
| Delivery point | Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales | |
| enquiries@naturalresourceswales.gov.uk | ||
| URL | http://naturalresources.wales/?lang=en | |
| 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 | This states any limitations on access to the data. Multiple occurences are allowed here. One entry shall be from the INSPIRE Metadata registry and the other free text should be part of the resource `Have specific limitations`. | This data is jointly owned by NRW and the Centre for Applied Marine Sciences (CAMS). There are no access restrictions to this data. NRW may release, publish or disseminate it freely. |
| no limitations | ||
| 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 | This states any constraints on use of the data. Multiple conditions can be recorded for different parts of the data resource. If no conditions apply, then `No condtions apply` is recorded. This uses free text. | © CNC/NRW and CAMS 2011 There are no use restrictions on this data. Recipients may re-use, reproduce, disseminate this data free of charge in any format or medium, provided they do so accurately, acknowledging both the source and the copyright of NRW/CAMS and do not use it in a misleading context. It is the recipient's responsibility to ensure the data is fit for the intended purpose, that dissemination or publishing does not result in duplication and that it is fairly interpreted. Advice on interpretation should be sought where required. To avoid re-using old data, users should periodically obtain the latest version from the original source. |
| Available data formats | ||
| Data format | Format in which digital data can be provided for transfer | Documents |
| 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. | 2011-06-30 |
| 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. | 2026-03-03 |
| 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 | 3.1.2 |