Remote Sensing Phase 1 Habitat Survey Update
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.
- Dull adnabod
- Rhychwant
- Dosbarthiad
- Ansawdd
- Allweddeiriau
- System Cyfeirio Gofodol
- Cynnwys
- Cyfyngiadau
- Cynnal a chadw
- Metadata
Dull adnabod
- Dynodydd
- NRW_DS111197
- Teitl Amgen
-
- Phase 1 remote sensed.LYR
- Synhwyro o bell - arolwg cynefinoedd Cam 1 - y diweddaraf
- Laith Metadata
- English
- Datganiad
-
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.
- Dyddiad cyfeirnod y set ddata (Cyhoeddiad)
- 2021-11-09
Ystod amser
- Dyddiad cychwyn
- 2004-01-01
- Dyddiad gorffen
- 2021-11-09
- Categori pwnc
-
- Imagery base maps earth cover
- Biota
Rhychwant
Rhychwant
- Hyd
- Wales (WLS)
))
Dosbarthiad
- Fformat - Math a Disgrifiad
-
-
Geographic Information System
(
)
- Math
-
GIS Layers
-
Geographic Information System
(
)
Ansawdd
Ansawdd Data
- Cwmpas Ansawdd
- Dataset
- Datganiad
-
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.
Allweddeiriau
Allweddair
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2008-06-01
Allweddair
-
NRW Thesaurus
-
- remote sensing
- satellite images
- Phase 1 Survey (Phase I)
- satellite remote sensing
- habitat surveys (habitat monitoring)
- imagery
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2024-06-19
Allweddair
-
NRW SMNR Keywords
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- Management Areas (SMNR)
- Landscape (SMNR)
- Sustainable Management of Natural Resources (SMNR)
- Natural Resources (Incl. Features and Processes) (SMNR)
- Physical Geography (Physiography) (SMNR)
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2024-06-26
System Cyfeirio Gofodol
Cynnwys
Gwybodaeth Cynnwys
Proffil CNC
Elfennau CNC
Cyfyngiadau
Cyfyngiadau
Cyfyngiadau ar Fynediad a Defnydd Cyhoeddus
- Math o Gyfyngiad
- Other restrictions
Cyfarwyddeb Cyfyngiadau Mynediad
- Cyfyngiadau
- no limitations
Testun cyfyngiadau mynediad
- Cyfyngiadau eraill
-
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).
Defnyddiwch gyfyngiadau
- Cyfyngiadau Defnyddio
- Other restrictions
- Cyfyngiadau eraill
-
© 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.
Metadata
Metadata
- Dynodydd Ffeil
- 4f4c4942-4343-5764-6473-313131313937 XML
- Laith Metadata
- English
- Math o adnodd
- Dataset
- Dyddiad Metadata
- 2024-08-02T16:20:53.637Z
- Enw Safonol Metadata
- NRW
- Fersiwn Metadata
-
1.0