Lleoliadau Gweladwy Tirweddau Dynodedig yng Nghymru
Nature of data: showing the extent of areas visible from a range of landscape-scale polygons and view points.
Purpose of data: To assist strategic site choices when planning visually prominent development types. A web page with general introduction and links to map images produced from the data is available from Natural resources Wales. This is new data output, believed to be seminal for Wales.
Resolution and extent: The visibility mapping uses a 30m resolution open-source digital terrain model for the whole of Wales, out to maximum viewing distance of 35km, including overlaps to/from England where relevant. The 30m digital terrain model was sourced from the Shuttle Radar Topography Mission (Van Zyl, 2001) and processed using the Quantum GIS plugin developed by Cuckovic (2016). See page 23 of technical report (via the link above) for more detail.
- Dull adnabod
- Rhychwant
- Dosbarthiad
- Ansawdd
- Allweddeiriau
- System Cyfeirio Gofodol
- Cynnwys
- Cyfyngiadau
- Cynnal a chadw
- Metadata
Dull adnabod
- Dynodydd
- NRW_DS124929
- Teitl Amgen
-
- Mapping the visible settings of Designated Landscapes in Wales
- Laith Metadata
- English
- Datganiad
-
Types of data: Data comprises GIS files, a selection of thematic map images created from the GIS, a technical report and user guidance. Output types are (1) zone of theoretical visibility (ZTV); (2) height of object before it is visible (HOBV). Geographical units from which these calculations were run are (a) Key iconic view points to or from nationally designated landscapes – 200 points showing ZTV and HOBV; (b) The visible settings of nationally designated landscapes – 9 large polygons in or affecting Wales, showing ZTV, HOBV; and (c) The visible settings of LANDMAP Visual and Sensory Aspect Areas, 1920 polygons showing ZTV only. Additional derived maps arising from the data for (b) are: ‘heatmaps’ indicating relative concentrations of visibility, and a combined national map showing the pattern of coverage of where there is visibility from a designated landscape.
Caveats on use: The data is designed for strategic planning and site selection use only. It is quantitative data on visibility and does not itself indicate a qualitative measure of visual sensitivity. It does not replace the need for (i) more detailed site and development-specific zone of theoretical visibility mapping evidence and (ii) landscape and visual impact assessment, as part of a development consenting process.
- Gwybodaeth ychwanegol
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Hodges, C.J., Batten, H., Roberts, O., Dowding, D. 2021. Mapping the visible settings of Designated Landscapes in Wales. NRW Evidence Report No: 522, 81pp, Natural Resources Wales, Bangor.
- Dyddiad cyfeirnod y set ddata (Cyhoeddiad)
- 2024-02-19
Rhychwant
Rhychwant
- Hyd
- Wales (WLS)
))
Dosbarthiad
Dosbarthiad
- Fformat - Math a Disgrifiad
-
-
Geographic Information System
(
Unknown
)
- Math
-
ESRI feature class
-
Geographic Information System
(
Unknown
)
- Lleolwr Adnoddau
- Download Data ( WWW:LINK-1.0-http--link )
Ansawdd
Ansawdd Data
- Cwmpas Ansawdd
- Dataset
- Cydymffurfiad
- 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
- Eglurhad
-
This dataset has not been assessed for conformance to the referenced INSPIRE regulation.
- Gradd
- false
- Datganiad
-
Types of data: Data comprises GIS files, a selection of thematic map images created from the GIS, a technical report and user guidance. Output types are (1) zone of theoretical visibility (ZTV); (2) height of object before it is visible (HOBV). Geographical units from which these calculations were run are (a) Key iconic view points to or from nationally designated landscapes – 200 points showing ZTV and HOBV; (b) The visible settings of nationally designated landscapes – 9 large polygons in or affecting Wales, showing ZTV, HOBV; and (c) The visible settings of LANDMAP Visual and Sensory Aspect Areas, 1920 polygons showing ZTV only. Additional derived maps arising from the data for (b) are: ‘heatmaps’ indicating relative concentrations of visibility, and a combined national map showing the pattern of coverage of where there is visibility from a designated landscape.
Caveats on use: The data is designed for strategic planning and site selection use only. It is quantitative data on visibility and does not itself indicate a qualitative measure of visual sensitivity. It does not replace the need for (i) more detailed site and development-specific zone of theoretical visibility mapping evidence and (ii) landscape and visual impact assessment, as part of a development consenting process.
Allweddeiriau
Allweddair
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2008-06-01
Allweddair
-
NRW Thesaurus
-
- LANDMAP
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2025-01-08
System Cyfeirio Gofodol
Cynnwys
Gwybodaeth Cynnwys
Proffil CNC
Elfennau CNC
- Teitlau cysylltiedig CNC
-
Mapping the visible settings of Designated Landscapes in Wales
Cyfyngiadau
Cyfyngiadau
Cyfyngiadau ar Fynediad a Defnydd Cyhoeddus
- Math o Gyfyngiad
- Other restrictions
Cyfarwyddeb Cyfyngiadau Mynediad
- Cyfyngiadau
- no limitations
Testun cyfyngiadau mynediad
- Cyfyngiadau eraill
-
There are no access restrictions on this data. NRW may release, publish or disseminate it freely.
Defnyddiwch gyfyngiadau
- Cyfyngiadau Defnyddio
- Other restrictions
- Cyfyngiadau eraill
-
© CNC/NRW. Data may be re-used under the terms of the Open Government Licence providing it is done so, acknowledging both the source and NRW's copyright. It is the recipient's responsibility to ensure the data is fit for the intended purpose.
Datganiad Priodoli
- Cyfyngiadau eraill
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Contains Natural Resources Wales information © Natural Resources Wales and Database Right. All rights Reserved. NASA Shuttle Radar Topography Mission (SRTM)(2013). Shuttle Radar Topography Mission (SRTM) Global. Distributed by OpenTopography. https://doi.org/10.5069/G9445JDF .
Math o Drwydded
- Cyfyngiadau eraill
- Open Government Licence
Metadata
Metadata
- Dynodydd Ffeil
- 4f4c4942-4343-5764-6473-313234393239 XML
- Laith Metadata
- English
- Math o adnodd
- Dataset
- Dyddiad Metadata
- 2025-11-28T15:50:20.212Z
- Enw Safonol Metadata
- NRW
- Fersiwn Metadata
-
1.0