Merthyr Mawr Topographic Surveys Conducted as part of the Sand Dune Rejuvenation Trials (2012 - 2015).

The purpose of this data capture was to assess the topographic mobility of the Merthyr Mawr National Nature Reserve sand dunes and to monitor the sand dune rejuvenation. Merthyr Mawr Warren sand dune rejuvenation trails began in December 2012. The dataset consists of points were topographic elevations were determined, many of which were on profile lines which were profile lines. Key features were defined based on the limits. These features included ridge crests, standing water, new vegetation growth and the position of the frontal sand dunes.

Identifier: NRW_DS115843

Alternative Title

Arolygon topograffig Merthyr Mawr a gynhaliwyd fel rhan o brofion ailfywiogir twyni tywod (2012 - 2015).

Metadata Language: English

Lineage: The report associated with this data provides a brief summary of the results arising from the second in a planned series of topographic monitoring surveys at Merthyr Mawr Warren where dune rejuvenation trials were begun in December 2012. Elevation points were determined using Leica RTK GPS SmartRover equipment. During each survey ground photographs were taken from a number of fixed points to provide a visual record of changes in the vegetation cover and surface character. The raw survey data were mathematically ‘corrected’ to allow direct comparison of straight line profiles derived from the October 2009 LiDAR survey and the May 2013 ground survey. The vertical accuracy of the LiDAR has not been quantified directly but is estimated to be better than 10-15 cm.

Additional Information: KPAL (2013e) Merthyr Mawr Dune Rejuvenation Works Topographic Survey, May 2013. NRW Evidence Report No. 94. Kenneth Pye Associates Ltd., Solihull. KPAL (2014b) Merthyr Mawr Dune Rejuvenation Works Topographic Survey, March 2014. NRW Evidence Report No. 96. Kenneth Pye Associates Ltd., Solihull. KPAL (2015a) Merthyr Mawr Dune Rejuvenation Works Topographic Survey, March 2015. NRW Evidence Report No. 99. Kenneth Pye Associates Ltd., Solihull.

Dataset Reference Date (Publication): 2014-10-28

Temporal Extent

Begin date: 2013-05-14

End date: 2015-03-30

Topic category

Environment

Owner

Natural Resources Wales (NRW)

Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales

http://naturalresources.wales/?lang=en

Originator

Kenneth Pye Associates Ltd

Kenneth Pye Associates Ltd, Crowthorne Enterprise Centre, Old Wokingham Road, Crowthorne, Berkshire, RG45 6AW, UK

http://www.kpal.co.uk/

Extent

Geographic Extent: BRO MORGANNWG - THE VALE OF GLAMORGAN

Geographic Extent: PEN-Y-BONT AR OGWR - BRIDGEND

Map representing the geographic extent of the dataset

Format Type and Description

Documents Documents ()

Specification

Data Format Type: Documents, Geographic Information Systems, Image Data Description [A] A contractors Reports - Results only in .docx format [B] Topographical (height) data in .csv format [C] A series of GIS files in shp format of dune features (bare sand, slope, blown sand, ridges and plateaus, sand placement, embryo dune vegetation) ponded water

Data quality

Quality Scope: Dataset

Conformity: 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
Explanation
Degree: false

Lineage: The report associated with this data provides a brief summary of the results arising from the second in a planned series of topographic monitoring surveys at Merthyr Mawr Warren where dune rejuvenation trials were begun in December 2012. Elevation points were determined using Leica RTK GPS SmartRover equipment. During each survey ground photographs were taken from a number of fixed points to provide a visual record of changes in the vegetation cover and surface character. The raw survey data were mathematically ‘corrected’ to allow direct comparison of straight line profiles derived from the October 2009 LiDAR survey and the May 2013 ground survey. The vertical accuracy of the LiDAR has not been quantified directly but is estimated to be better than 10-15 cm.

Keywords

GEMET - INSPIRE themes, version 1.0

Type: Theme

Citation

Date (Publication): 2008-06-01

Code: geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme

Keywords

NRW Thesaurus

Merthyr Mawr
sand dune survey
topography

Type: Theme

Citation

Date (Publication): 2023-12-31

Code: geonetwork.thesaurus.local.theme.converted_nrw-keywords

Code: Latitude and Longitude (EPSG::4326)

Content Information

NRW Profile

Custom Elements

Constraints

Limitations on Public Access and Use

Restriction type: Other restrictions

Access Constraints Directive

Limitations: no limitations

Access Constraints Text

Other constraints: There are no access restrictions on this data. NRW may release, publish or disseminate it freely.

Use Constraints

Use constraints type: Other restrictions

Other constraints: © 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.

Metadata

File Identifier: 4f4c4942-4343-5764-6473-313135383433 XML

Metadata Language: English

Resource type: Dataset

Metadata Date: 2024-05-31T09:16:25.757Z

Metadata Standard Name: NRW

Metadata Standard Version: 1.0

pointOfContact

Natural Resources Wales (NRW)

Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales

http://naturalresources.wales/?lang=en

Publishing Body

Access the portal

Full access to the portal and metadata.

Merthyr Mawr Topographic Surveys Conducted as part of the Sand Dune Rejuvenation Trials (2012 - 2015).

Identification

Temporal Extent

Extent

Extent

Distribution

Quality

Data quality

Keywords

Keywords

Citation

Keywords

Citation

Spatial Reference System

Content

Content Information

NRW Profile

Custom Elements

Constraints

Constraints

Limitations on Public Access and Use

Access Constraints Directive

Access Constraints Text

Use Constraints

Metadata

Metadata

Publishing Body