Sites of Special Scientific Interest (England)
Summary
A Site of Special Scientific Interest (SSSI) is the land notified as an SSSI under the Wildlife and Countryside Act (1981), as amended. Sites notified under the 1949 Act only are not included in the Data set. SSSI are the finest sites for wildlife and natural features in England, supporting many characteristic, rare and endangered species, habitats and natural features. The data do not include "proposed" sites. Boundaries are generally mapped against Ordnance Survey MasterMap.
Categories
Use limitation statement
There are no public access constraints to this data. Use of this data is subject to the licence identified.
Licence
Open Government LicenceAttribution statement
Attribution statement: © Natural England copyright. Contains Ordnance Survey data © Crown copyright and database right [year].
Technical information
Update frequency
monthly
Lineage
All data is captured to the Ordnance Survey National Grid sometimes called the British National Grid. OS MasterMap Topographic Layer ? produced and supplied by Ordnance Survey from data at 1:1250, 1:2500 and 1:10000 surveying and mapping standards - is used as the primary source. Other sources ? acquired internally and from external suppliers - may include aerial imagery at resolutions ranging from 25cm to 2m, Ordnance Survey 1:10000 raster images, historical OS mapping, charts and chart data from UK Hydrographic Office and other sources, scanned images of paper designation mapping (mostly originally produced at 1:10560 or 1:10000 scales), GPS and other surveyed data, and absolute coordinates. The data was first captured against an August 2002 cut of OS MasterMap Topography. Natural England has successfully uploaded an up-to-date version of OS MasterMap Topographic Layer. However, we have not yet updated our designated data holding to this new version of MasterMap. This should occur in the near future, when we will simultaneously apply positional accuracy improvement (PAI) to our data.
Spatial information
Coordinate reference system
http://www.opengis.net/def/crs/EPSG/0/27700Geographic extent
- Latitude from: 49.8625 to 55.7447
- Longitude from: -6.41736 to 2.05827
Metadata information
Language
English
Metadata identifier
ba8dc201-66ef-4983-9d46-7378af21027e
Published by
Natural England
Contact publisher
data.services@naturalengland.org.ukDataset reference dates
Creation date
15 November 2024
Revision date
15 January 2025
Publication date
14 September 2017
Period
- From: 01 January 1970
- To: 31 December 2099
Search
Data and Supporting Information
Data services and download by area of interest | Link | Action |
---|---|---|
Download data by area of interest | N/A | Open link |
Natural England Open Data Geoportal Page | Open link | |
Sites of Special Scientific Interest (England) WMS | Copy link | Preview |
Sites of Special Scientific Interest (England) WFS | Copy link | N/A |
OGC API - Features service | Copy link | Open link |
Full downloads and supporting documentation | Format | Action |
---|---|---|
Sites_of_Special_Scientific_Interest_England.lyr | LYR | Download |