Morphodynamic Modelled Outputs for the Mawddach Estuary
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.
- Dull adnabod
- Rhychwant
- Dosbarthiad
- Ansawdd
- Allweddeiriau
- System Cyfeirio Gofodol
- Cynnwys
- Cyfyngiadau
- Cynnal a chadw
- Metadata
Dull adnabod
- Dynodydd
- NRW_DS114564
- Teitl Amgen
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- Canlyniadau ar sail model morffodynamig ar gyfer Aber Mawddach
- Development of a morphodynamic model of the Mawddach Estuary to inform future management decisions
- Laith Metadata
- English
- Datganiad
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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).
- Dyddiad cyfeirnod y set ddata (Cyhoeddiad)
- 2011-06-30
Ystod amser
- Dyddiad cychwyn
- 1977-01-01
- Dyddiad gorffen
- 2010-12-31
- Categori pwnc
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- Elevation
Rhychwant
Rhychwant
- Hyd
- GWYNEDD - GWYNEDD
))
Maint Fertigol
- Maint allweddair MEDIN
-
water column
Maint Fertigol
- Gwerth lleiaf
- 10
- Gwerth uchaf
- -20
- System Gyfeirio Cydlynu Fertigol
Dosbarthiad
- Fformat - Math a Disgrifiad
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-
Documents
Documents
()
- Math
-
[A] Report in word and pdf format. [B] Modelled output grid files in .r2d format
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Documents
Documents
()
Ansawdd
Ansawdd Data
- Cwmpas Ansawdd
- Dataset
- Datganiad
-
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).
Allweddeiriau
Allweddair
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2008-06-01
Allweddair
- NRW Thesaurus
-
- modelling
- Mawddach Estuary
- morphodynamics
- TELEMAC
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2023-12-31
Allweddair
- SeaDataNet Parameter Discovery Vocabulary
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- Coastal geomorphology
- Bathymetry and Elevation
- Math
- Theme
Dyfyniad
- Dyddiad (Adolygu)
- 2021-01-06
System Cyfeirio Gofodol
Cynnwys
Gwybodaeth Cynnwys
Proffil CNC
Elfennau CNC
Cyfyngiadau
Cyfyngiadau
Cyfyngiadau ar Fynediad a Defnydd Cyhoeddus
- Math o Gyfyngiad
- Other restrictions
Cyfarwyddeb Cyfyngiadau Mynediad
- Cyfyngiadau
- no limitations
Testun cyfyngiadau mynediad
- Cyfyngiadau eraill
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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.
Defnyddiwch gyfyngiadau
- Cyfyngiadau Defnyddio
- Other restrictions
- Cyfyngiadau eraill
-
© 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.
Metadata
Metadata
- Dynodydd Ffeil
- 4f4c4942-4343-5764-6473-313134353634 XML
- Laith Metadata
- English
- Math o adnodd
- Dataset
- Dyddiad Metadata
- 2024-05-31T09:11:43.668Z
- Enw Safonol Metadata
- NRW
- Fersiwn Metadata
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1.0