Identification

Title

Sites of Special Scientific Interest (SSSIs)

Alternative title(s)

Safleoedd o Ddiddordeb Gwyddonol Arennig

Sites (SSSI)

Sites of Special Scientific Interest (SSSI).lyr

Abstract

This spatial dataset contains the digital boundaries of Sites of Special Scientific Interest (SSSIs) in Wales. SSSIs cover a wide range of habitats from small fens, bogs and riverside meadows to sand-dunes, woodlands and vast tracts of uplands. Most are in private ownership, although some are owned and managed by local wildlife trusts, or other voluntary conservation bodies. Notification of an SSSI under the Wildlife and Countryside Act 1981 has since been amended by the Countryside and Rights of Way Act 2001, which brought about numerous changes in the way SSSI are notified managed and protected. In order to ensure consistent, favourable long-term management of these sites, Natural Resources Wales (NRW) with landowners have prepared management plans for all SSSI in Wales. Local plan ning authorities are required to consult NRW before allowing any development to proceed that may affect an SSSI. Water, gas and electricity companies must also do the same. SSSIs have been designated, from 1949 to the present day, and are on-going. The data has been held digitally since the mid-1990s. This data has been checked by relevant NRW staff. Please refer to the designation map as the legal definitive boundary. For large SSSIs that were captured digitally and have been printed on a smaller scale map than OS MasterMap, please refer to the OS MasterMap edition at time of capture to view the definitive boundary.

Resource type

dataset

Resource locator

http://lle.gov.wales/catalogue/item/ProtectedSitesSitesOfSpecialScientificInterest/?lang=en

name: Download Data and Web Service

http://lle.gov.wales/services/wms/nrw?

name: Web Mapping Service

Unique resource identifier

code

98776

codeSpace

https://naturalresources.wales

Dataset language

eng

Spatial reference system

authority code

OGP

code identifying the spatial reference system

urn:ogc:def:crs:EPSG::BNG

Additional information source

Please refer to Countryside Acts 1949,1981 and 2001, for reasons for capture of original designation. NRW has also created a subset of this dataset showing only those where relate to the marine environment. These are available on the Welsh Government marine planning portal.

Classification of spatial data and services

Topic category

biota

environment

imageryBaseMapsEarthCover

geoscientificInformation

Keywords

Keyword set

keyword value

Protected sites

originating controlled vocabulary

title

reference date

date type

publication

effective date

2021-02-05

Keyword set

keyword value

Sites of Special Scientific Interest

Biodiversity

Nature conservation

originating controlled vocabulary

title

reference date

date type

publication

effective date

2021-02-05

Geographic location

West bounding longitude

-5.77774100

East bounding longitude

-2.60886500

North bounding latitude

53.51306700

South bounding latitude

51.24082900

Extent

Extent group

authority code

title

reference date

date type

publication

effective date

2021-02-05

code identifying the extent

Wales (WLS)

Temporal reference

Temporal extent

Begin position

1992-01-01

End position

2020-06-19

Dataset reference date

date type

publication

effective date

2020-06-19

date type

revision

effective date

2011-11-01

Frequency of update

asNeeded

Quality and validity

Lineage

All SSSIs designated before GIS technology have been converted into digital data from paper maps of various scales. In 2008 the whole dataset was updated to OS MasterMap (mostly to CCW 2006 OS update). This update referred to the original designation maps and all notational descriptions on these maps e.g. “Only the water under the bridges included in the site” OR “SSSI boundary follows, in part the lines of the Mean High and Low Water Marks; both are liable to change.” All new or re-notified sites will be put to the latest release by NRW of OS MasterMap and this information is recorded in the attribute data under the Last_Edited column. As OSMM is updated by the Ordnance Survey it is important to check where boundaries may subsequent ly have moved.

Conformity

Data format

name of format

version of format

Constraints related to access and use

Constraint set

Use constraints

© CNC/NRW All rights Reserved. Contains Ordnance Survey Data. Ordnance Survey Licence number 100019741. 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.

Constraint set

Limitations on public access

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

Responsible organisations

Responsible party

organisation name

Natural Resources Wales (NRW)

telephone number

0300 065 3000

email address

enquiries@naturalresourceswales.gov.uk

responsible party role

owner

Responsible party

organisation name

Natural Resources Wales (NRW)

telephone number

0300 065 3000

email address

enquiries@naturalresourceswales.gov.uk

responsible party role

originator

Metadata on metadata

Metadata point of contact

organisation name

Natural Resources Wales (NRW)

telephone number

0300 065 3000

email address

enquiries@naturalresourceswales.gov.uk

responsible party role

pointOfContact

Metadata date

2021-02-04

Metadata language