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.

Identification

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
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

Extent

Geographic Extent
BRO MORGANNWG - THE VALE OF GLAMORGAN
Geographic Extent
PEN-Y-BONT AR OGWR - BRIDGEND
N
W
E
S
Map representing the geographic extent of the dataset


 
 

Distribution

Format Type and Description
  • 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

 

Quality

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

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
 

Spatial Reference System

Code
Latitude and Longitude (EPSG::4326)
 

Content

Content Information

NRW Profile

Custom Elements

 

Constraints

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

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

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