All Wales Phase 1 Terrestrial - 1kmsq Access Database

The data are derived from a programme of field recording that was begun by the Nature Conservancy Council (NCC) in 1979 and continued by the Countryside Council for Wales (CCW) after restructuring in 1991. 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 simplified and imported into a GIS to enable its disaggregation into various different geographical regions within Wales (see All Wales Phase 1 Terrestrial - 1Kmsq - GIS Dataset). The database was created in 1999 using data from the Phase 1 Habitat Survey of Wales undertaken between 1979 and 1999. This table was held in Paradox database but then was converted into Access. It lists Phase 1 habitat areas in every 1 km square in Wales. Habitat area measurements are sub-divided within 1 km squares by, Region, District, Survey programme (Terrestrial Phase 1 Survey and upland surveys), Upland and lowland, and, for land covered by the terrestrial Phase 1 survey, statutory and non-statutory at the time of survey.

Identifier: NRW_DS24253

Alternative Title

All Wales Phase 1 Terrestrial - 1kmsq Paradox Database
Cam 1 Daearol - 1 cilomedr sgwar - bas data paradox

Metadata Language: English

Lineage: Closely co-ordinated teams of surveyors carried out field recording of habitats onto 1:10,000 scale maps (rarely 1:25,000 during the upland stage). 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. The survey methods employed during the initial upland stage are given in more detail in a WFU report (Day, A. (1989) Upland Vegetation Survey 1979-1989 Background Methodology and Summary of Data Collected. NCC, Bangor). Methods for the lowland survey 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). Charles Copp was contracted by CCW to input records from CCW paper survey forms into Paradox. 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. Habitat area data from the Upland Vegetation Survey were derived from 1 km square size-class estimates using an iterative process.

Dataset Reference Date (Publication): 1999-12-31

Temporal Extent

Begin date: 1979-01-01

End date: 1997-12-31

Topic category

Biota

Owner

Natural Resources Wales (NRW)

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

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

Originator

Nature Conservancy Council (NCC)

c/o Natural Resources Wales, Maes Y Ffynnon, Penrhosgarnedd, Bangor, LL57 2DW, Wales

http://naturalresourceswales.gov.uk/splash?orig=/

Originator

Natural Resources Wales (NRW)

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

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

Extent

Geographic Extent: Wales (WLS)

Format Type and Description

Database ()

Specification

Paradox and Microsoft Access.

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: Closely co-ordinated teams of surveyors carried out field recording of habitats onto 1:10,000 scale maps (rarely 1:25,000 during the upland stage). 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. The survey methods employed during the initial upland stage are given in more detail in a WFU report (Day, A. (1989) Upland Vegetation Survey 1979-1989 Background Methodology and Summary of Data Collected. NCC, Bangor). Methods for the lowland survey 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). Charles Copp was contracted by CCW to input records from CCW paper survey forms into Paradox. 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. Habitat area data from the Upland Vegetation Survey were derived from 1 km square size-class estimates using an iterative process.

Keywords

GEMET - INSPIRE themes, version 1.0

Habitats and biotopes

Type: Theme

Citation

Date (Publication): 2008-06-01

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

Keywords

NRW Thesaurus

habitat classification
habitats (see also specific types of habitats)
Phase 1 Survey (Phase I)

Type: Theme

Citation

Date (Publication): 2023-12-31

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

Code: British National Grid (EPSG::27700)

Content Information

NRW Profile

Custom Elements

NRW Related Title: Upland vegetation survey 1979-1989 : background, methodology and summary of data collected

NRW Related Title: Supplementary notes for phase 1 survey in Wales

NRW Related Title: An assessment of errors in Phase I habitat survey in Wales. Confidential

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: 4f4c4942-4343-5764-6473-3234323533 XML

Metadata Language: English

Parent Identifier: Terrestrial Phase 1 Habitat Survey
NRW_DS24715

Resource type: Dataset

Metadata Date: 2024-05-31T09:32:03.06Z

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.

All Wales Phase 1 Terrestrial - 1kmsq Access Database

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