Bait digging areas 2019/2020
The data has been collected under a contract run under the Wales non-licensable activities project. Bait digging and collection of living resources was identified as an activity which is causing damage to the Marine Protection Area (MPA) network in Wales. The data obtained from this contract provides NRW with evidence which will help inform discussions around future management of this activity. A GIS layer was created through interpretation of the visible evidence of bait digging from the aerial images (NRW_DS124825 Bait digging areas aerial imagery 2019/2020). The GIS layer was created by digitising around areas identified as impacted by bait digging. In addition the layer displays site name, confidence in intrepretation, the age of the evidence (old/new) and digging intensity (low, medium and high) along with who captured the data, the date and image date.
- Dull adnabod
- Rhychwant
- Dosbarthiad
- Ansawdd
- Allweddeiriau
- System Cyfeirio Gofodol
- Cynnwys
- Cyfyngiadau
- Cynnal a chadw
- Metadata
Dull adnabod
- Dynodydd
- NRW_DS124806
- Teitl Amgen
-
- Intertidal Drone Photos 2019-2020.lyr
- Bait digging areas (2019-2020).lyr
- Ardaloedd cloddio am abwyd 2019/2020
- Laith Metadata
- English
- Datganiad
-
To produce the GIS layer (BaitDiggingAreas_2019_2020), a virtual raster was created for each site using the aerial imagery as tiles. A 100m grid was applied over each site to ensure all areas of the site were examined. Aerial imagery was inspected at 1:250 scale. A scale of 1:500 was used to review areas where evidence of bait digging was not expected, and squares checked off when reviewed. The site surveyor and the digitiser discussed mapping of polygons in the areas visited by foot. The digitiser established what could be identified. It should be acknowledged that this layer has been created using the contractor’s interpretation of imagery (along with some ground truthing) and is not likely to respresent a complete picture of damage at these sites. It also represents a snapshot in time.
- Gwybodaeth ychwanegol
-
Perrins, J., Lush, M., Taylor, T., Holt, R and Bunker, F. 2020. Investigating the location and intensity of bait digging in Wales. NRW Evidence Report Series Report No: 449, 170pp, NRW, Bangor.
- Dyddiad cyfeirnod y set ddata (Cyhoeddiad)
- 2020-07-08
Ystod amser
- Dyddiad cychwyn
- 2019-09-30
- Dyddiad gorffen
- 2020-03-13
- Categori pwnc
-
- Environment
- Biota
- Oceans
Rhychwant
Rhychwant
- Hyd
- Wales (WLS)
))
Maint Fertigol
- Maint allweddair MEDIN
-
littoral
Dosbarthiad
- Fformat - Math a Disgrifiad
-
-
Geographic Information System
()
- Math
-
There are the following outputs from this contract: - spatial ESRI GIS layer. There are also 15 x .geotiffs (aerial images of 12 intertidal sites in Wales), see separate metadata entry. Also supplied as part of the contract is: - A series of PDFs which contain the mapping processing notes - A series of word documents which have raw site reports - .tiff files (Digital surface models)
-
Geographic Information System
()
Ansawdd
Ansawdd Data
- Cwmpas Ansawdd
- Dataset
- Datganiad
-
To produce the GIS layer (BaitDiggingAreas_2019_2020), a virtual raster was created for each site using the aerial imagery as tiles. A 100m grid was applied over each site to ensure all areas of the site were examined. Aerial imagery was inspected at 1:250 scale. A scale of 1:500 was used to review areas where evidence of bait digging was not expected, and squares checked off when reviewed. The site surveyor and the digitiser discussed mapping of polygons in the areas visited by foot. The digitiser established what could be identified. It should be acknowledged that this layer has been created using the contractor’s interpretation of imagery (along with some ground truthing) and is not likely to respresent a complete picture of damage at these sites. It also represents a snapshot in time.
Allweddeiriau
Allweddair
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2008-06-01
Allweddair
- NRW Thesaurus
-
- bait digging (bait collecting)
- intertidal
- ragworms
- lugworms
- remote sensing
- drone survey
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2023-12-31
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
-
Part of this dataset is sensitive. Sensitive data must be kept confidential; general release is not permitted due to risk of harm to the environment or third parties.
Defnyddiwch gyfyngiadau
- Cyfyngiadau Defnyddio
- Other restrictions
- Cyfyngiadau eraill
-
© CNC/NRW Data may be re-used under provision and in line with the terms of a NRW licence. Attribution statement: Contains Natural Resources Wales information © Natural Resources Wales and database right. All rights reserved.
Metadata
Metadata
- Dynodydd Ffeil
- 4f4c4942-4343-5764-6473-313234383036 XML
- Laith Metadata
- English
- Math o adnodd
- Dataset
- Dyddiad Metadata
- 2024-05-31T09:31:39.652Z
- Enw Safonol Metadata
- NRW
- Fersiwn Metadata
-
1.0