All Wales Phase 1 Terrestrial - Scans
This is a spatial dataset of raster images of the hand-coloured Phase 1 Survey 5x5 km square 1:10,000 Ordnance Survey maps. The original maps ('master maps') are lodged in the National Library of Wales. The original field surveys were carried out as part of a national habitat survey programme required to implement conservation at a local level. An all-Wales electronic dataset was created for the generation of national statistics on habitat coverage. The dataset was subsequently imported into a GIS to enable its disaggregation into various different geographical regions within Wales.
- Dull adnabod
- Rhychwant
- Dosbarthiad
- Ansawdd
- Allweddeiriau
- System Cyfeirio Gofodol
- Cynnwys
- Cyfyngiadau
- Cynnal a chadw
- Metadata
Dull adnabod
- Dynodydd
- NRW_DS100201
- Teitl Amgen
-
- Phase 1 Scans.LYR
- Phase1 Scattered.LYR
- Cam 1 Daearol - Sganiwyd
- Phase 1 Terr Scans
- Laith Metadata
- English
- Datganiad
-
The field survey spanned from 1987 to 1997. Closely co-ordinated teams of surveyors carried out field recording of habitats onto 1:10,000 scale maps. The minimum size of habitat patch recorded lies predominantly within the range 0.1-0.25 ha, although smaller areas were mapped in the lowlands. Methods followed the Handbook for Phase 1 Habitat Survey with some minor modifications adopted for use in Wales (Howe E.A. and Blackstock T.H. (1991) Supplementary Notes for Phase I Survey in Wales. CCW, Bangor). All field mapping was carried out by trained and closely co-ordinated teams of surveyors. A study of survey reliability was conducted during the lowland phase (Kerry, Rimes, Smith, Williams. 1994. An Assessment of Errors in Phase I Habitat Survey in Wales. Bangor: Countryside Council for Wales, Report No. 94/4/1). It showed the field mapping to be 83% repeatable (Stevens, Blackstock, Howe, Stevens. 2004. Repeatability of Phase 1 habitat survey. J. Environ. Manage. 73, 53-59). The electronic data have undergone a series of checks for accuracy both by the contractor and subsequently within CCW.
- Dyddiad cyfeirnod y set ddata (Cyhoeddiad)
- 1999-12-31
Ystod amser
- Dyddiad cychwyn
- 1979-01-01
- Dyddiad gorffen
- 1999-12-31
- Categori pwnc
-
- Environment
- Farming
Rhychwant
Rhychwant
- Hyd
- Wales (WLS)
))
Dosbarthiad
- Fformat - Math a Disgrifiad
-
-
Geographic Information System
()
- Math
-
ESRI Feature Class
-
Geographic Information System
()
Ansawdd
Ansawdd Data
- Cwmpas Ansawdd
- Dataset
- Datganiad
-
The field survey spanned from 1987 to 1997. Closely co-ordinated teams of surveyors carried out field recording of habitats onto 1:10,000 scale maps. The minimum size of habitat patch recorded lies predominantly within the range 0.1-0.25 ha, although smaller areas were mapped in the lowlands. Methods followed the Handbook for Phase 1 Habitat Survey with some minor modifications adopted for use in Wales (Howe E.A. and Blackstock T.H. (1991) Supplementary Notes for Phase I Survey in Wales. CCW, Bangor). All field mapping was carried out by trained and closely co-ordinated teams of surveyors. A study of survey reliability was conducted during the lowland phase (Kerry, Rimes, Smith, Williams. 1994. An Assessment of Errors in Phase I Habitat Survey in Wales. Bangor: Countryside Council for Wales, Report No. 94/4/1). It showed the field mapping to be 83% repeatable (Stevens, Blackstock, Howe, Stevens. 2004. Repeatability of Phase 1 habitat survey. J. Environ. Manage. 73, 53-59). The electronic data have undergone a series of checks for accuracy both by the contractor and subsequently within CCW.
Allweddeiriau
Allweddair
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2008-06-01
Allweddair
- NRW Thesaurus
-
- geographical information systems (GIS)
- mapping (map drawing) (cartography)(see also digital mapping)
- Phase 1 Survey (Phase I)
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2023-12-31
System Cyfeirio Gofodol
Cynnwys
Gwybodaeth Cynnwys
Proffil CNC
Elfennau CNC
- Teitlau cysylltiedig CNC
-
An assessment of errors in Phase I habitat survey in Wales. Confidential
- Teitlau cysylltiedig CNC
-
Supplementary notes for phase 1 survey 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 All rights Reserved. Contains Ordnance Survey Data. Ordnance Survey Licence number AC0000849444. Crown Copyright and Database Right Data may be re-used under the terms of the Open Government Licence providing it is done so, acknowledging both the source and copyright of the owners. It is the recipient's responsibility to ensure the data is fit for the intended purpose.
Metadata
Metadata
- Dynodydd Ffeil
- 4f4c4942-4343-5764-6473-313030323031 XML
- Laith Metadata
- English
- Dynodydd Rhiant
-
Terrestrial Phase 1 Habitat Survey
NRW_DS24715
- Math o adnodd
- Dataset
- Dyddiad Metadata
- 2024-05-31T09:31:43.759Z
- Enw Safonol Metadata
- NRW
- Fersiwn Metadata
-
1.0