4f4c4942-4343-5764-6473-313131313937 English Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en 2025-02-04T10:38:31.646Z NRW 1.0 wel British National Grid (EPSG::27700) Remote Sensing Phase 1 Habitat Survey Update Remote Sensing Phase 1 Habitat Survey Update Phase 1 remote sensed.LYR Synhwyro o bell - arolwg cynefinoedd Cam 1 - y diweddaraf 2021-11-09 NRW_DS111197 Up-to-date habitat survey of Wales produced by analysis of remote sensing data. The dataset is comprised of contiguous habitat polygons classified into phase 1 categories. It is the product of a large scale remote sensing project aimed at updating the Phase 1 habitat survey carried out in Wales between 1979 and 1999. It was produced in order to have key dataset for Wales which can be used to inform the core work of former Countryside Council for Wales (CCW) and its partners, and map specialist habitats or interpretations of habitats. The maps will be checked through field visits and feedback from CCW staff with local knowledge. Up-to-date habitat survey of Wales produced by analysis of remote sensing data. The dataset is comprised of contiguous habitat polygons classified into phase 1 categories. It is the product of a large scale remote sensing project aimed at updating the Phase 1 habitat survey carried out in Wales between 1979 and 1999. It was produced in order to have key dataset for Wales which can be used to inform the core work of former Countryside Council for Wales (CCW) and its partners, and map specialist habitats or interpretations of habitats. The maps will be checked through field visits and feedback from CCW staff with local knowledge. Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en Countryside Council for Wales (CCW) Countryside Council for Wales, Maes y Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW enquiries@naturalresourceswales.gov.uk http://naturalresourceswales.gov.uk/splash?orig=/ Environment Systems Ltd 8G Vefn Llan Science Park, Aberystwyth, Ceredigion, SY23 3AH, Wales enquiries@envsys.co.uk http://www.envsys.co.uk/ Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en Habitats and biotopes GEMET - INSPIRE themes, version 1.0 GEMET - INSPIRE themes, version 1.0 2008-06-01 geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme remote sensing satellite images Phase 1 Survey (Phase I) satellite remote sensing habitat surveys (habitat monitoring) imagery NRW Thesaurus NRW Thesaurus 2024-06-19 geonetwork.thesaurus.local.theme.converted_nrw-keywords SeaDataNet Parameter Discovery Vocabulary SeaDataNet Parameter Discovery Vocabulary 2024-06-19 geonetwork.thesaurus.external.theme.rdf+xml IPSV Subjects List IPSV Subjects List 2020-11-18 geonetwork.thesaurus.external.theme.subjects Management Areas (SMNR) Landscape (SMNR) Sustainable Management of Natural Resources (SMNR) Natural Resources (Incl. Features and Processes) (SMNR) Physical Geography (Physiography) (SMNR) NRW SMNR Keywords NRW SMNR Keywords 2024-06-26 geonetwork.thesaurus.local.theme.converted_nrw-smnr-keywords The following data is considered OS derived data and is therefore jointly owned by NRW and the Ordnance Survey. NRW may release, publish or disseminate this data freely; providing recipients are made aware of use restrictions (See general use restrictions). no limitations © CNC/NRW and © Crown copyright 2014. All rights reserved. Natural Resources Wales, AC0000849444 Third parties seeking to re-use this data require a Licence issued by NRW. It allows re-use, reproduction and dissemination in any format or medium but only for non-commercial purposes, according to the terms and conditions of the Licence. Those seeking commercial re-use require a commercial licence available from the OS. English imageryBaseMapsEarthCover biota SeaVoX Vertical Co-ordinate Coverages SeaVoX Vertical Co-ordinate Coverages 2021-01-06 Wales (WLS) -5.777741 -2.608865 51.240829 53.513067 2004-01-01 2021-11-09 Geographic Information System GIS Layers 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 2010-12-08 This dataset has not been assessed for conformance to the referenced INSPIRE regulation. false Remote sensing is basically any method of collecting information about objects such as lakes, trees, fields and habitat type 'from a distance' - in this case, predominantly by satellite images. Original source data is predominantly satellite images (see metadata entry 'Remote sensing image catalogue'). Other data was derived from aerial photographs and a range of other GIS data sources. A draft map has been produced for the whole of Wales. This has been broken down into 50 projects, eight of which have been refined and re-processed into phase 1 maps (this process will be ongoing subject to funding with the ultimate aim of completing all 50 projects thus having all Wales coverage). Production of the draft map began in 2006 and was completed by the end of the financial year 2007/08, however the training of the systems began in 2004/05. The re-processing of the 50 project areas should be completed over the next two years. A draft map for the whole of Wales has been produced to assess the quality of the general rule base. The rules were fine-tuned one project at a time to get the best local result and to allow quality checking. The images have been combined and analysed to derive an interpretation of the habitat type present. The appearance of habitats varies throughout the year therefore images were compared from different times of year to identify habitats by their characteristic pattern of phenological changes. A draft map of Wales was produced which was then divided into around 50 areas (known as projects) within which it is possible to apply the same interpretation to the colour information form a satellite image. A set of rules were created in a computer programme to interpret the images and determine habitat type present. Ground truth work has also been carried out in the field to calibrate and train the analytical systems to come up with the best interpretation of the habitat type. Maps will be merged using a method known as DS Belief Functions. Remote sensing is basically any method of collecting information about objects such as lakes, trees, fields and habitat type 'from a distance' - in this case, predominantly by satellite images. Original source data is predominantly satellite images (see metadata entry 'Remote sensing image catalogue'). Other data was derived from aerial photographs and a range of other GIS data sources. A draft map has been produced for the whole of Wales. This has been broken down into 50 projects, eight of which have been refined and re-processed into phase 1 maps (this process will be ongoing subject to funding with the ultimate aim of completing all 50 projects thus having all Wales coverage). Production of the draft map began in 2006 and was completed by the end of the financial year 2007/08, however the training of the systems began in 2004/05. The re-processing of the 50 project areas should be completed over the next two years. A draft map for the whole of Wales has been produced to assess the quality of the general rule base. The rules were fine-tuned one project at a time to get the best local result and to allow quality checking. The images have been combined and analysed to derive an interpretation of the habitat type present. The appearance of habitats varies throughout the year therefore images were compared from different times of year to identify habitats by their characteristic pattern of phenological changes. A draft map of Wales was produced which was then divided into around 50 areas (known as projects) within which it is possible to apply the same interpretation to the colour information form a satellite image. A set of rules were created in a computer programme to interpret the images and determine habitat type present. Ground truth work has also been carried out in the field to calibrate and train the analytical systems to come up with the best interpretation of the habitat type. Maps will be merged using a method known as DS Belief Functions.