Woody habitat corridor data in South West England

This dataset contains polylines depicting non-woodland linear tree and shrub features in Cornwall and much of Devon, derived from lidar data collected by the Tellus South West project. Data from a lidar (light detection and ranging) survey of South West England was used with existing open source GIS datasets to map non-woodland linear features consisting of woody vegetation. The output dataset is the product of several steps of filtering and masking the lidar data using GIS landscape feature datasets available from the Tellus South West project (digital terrain model (DTM) and digital surface model (DSM)), the Ordnance Survey (OS VectorMap District and OpenMap Local, to remove buildings) and the Forestry Commission (Forestry Commission National Forest Inventory Great Britain 2015, to remove woodland parcels). The dataset was tiled as 20 x 20 km shapefiles, coded by the bottom-left 10 km hectad name. Ground-truthing suggests an accuracy of 73.2% for hedgerow height classes. Full details about this dataset can be found at https://doi.org/10.5285/4b5680d9-fdbc-40c0-96a1-4c022185303f

Identification info

Metadata Language: English (en)

Character set: utf8

Dataset Reference Date (): 2017-03-21

Dataset Reference Date (): 2017-02-28

Identifier: https://catalogue.ceh.ac.uk/id/4b5680d9-fdbc-40c0-96a1-4c022185303f

Identifier: doi: / 10.5285/4b5680d9-fdbc-40c0-96a1-4c022185303f

Other citation details: Broughton, R.K., Gerard, F., Haslam, R., Howard, A.S. (2017). Woody habitat corridor data in South West England. NERC Environmental Information Data Centre 10.5285/4b5680d9-fdbc-40c0-96a1-4c022185303f

UK Centre for Ecology & Hydrology - Dr. Richard Broughton

Centre for Ecology & Hydrology - Broughton, R.K.

Centre for Ecology & Hydrology - Gerard, F.

British Geological Survey - Haslam, R.

British Geological Survey - Howard, A.S.

NERC EDS Environmental Information Data Centre

NERC Environmental Information Data Centre

UK Centre for Ecology & Hydrology

GEMET - INSPIRE themes, version 1.0 ()

Land Cover

Keywords

Tellus South West Project
NEC05019

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Other constraints: no limitations

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Other constraints: This resource is made available under the terms of the Open Government Licence

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Other constraints: © UK Centre for Ecology & Hydrology

Use constraints: otherRestrictions

Other constraints: If you reuse this data, you should cite: Broughton, R.K., Gerard, F., Haslam, R., Howard, A.S. (2017). Woody habitat corridor data in South West England. NERC Environmental Information Data Centre https://doi.org/10.5285/4b5680d9-fdbc-40c0-96a1-4c022185303f

Spatial representation type: vector

Distance: 20000 urn:ogc:def:uom:EPSG::9001

Topic category

Imagery base maps earth cover

Begin date: 2013-07-01

End date: 2013-08-31

Code: OSGB 1936 / British National Grid

Distribution Information

Data format

Shapefile ()

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Quality Scope: dataset

Other: dataset

Report

Dataset Reference Date (): 2010-12-08

Statement: The output data product has been ground truthed, suggesting an accuracy of 73.2% between field survey and modeled heghts of hedgerows (see documentation). The dataset has not been exhaustively checked for all errors. Extensive manual checking (comparison to aerial imagery) removed obvious anomalies, but many are likely to be remaining. Particular issues with misclassification of features at the coast resulted in all features within a 50 m buffer of the high water mark being removed. Some areas of tall in-field crops are probably also present as apparent low scrub, and difficulty in rendering very irregular patches of trees and scrub have created very dense or very simplistic areas of polylines.

Metadata

File identifier: 4b5680d9-fdbc-40c0-96a1-4c022185303f XML

Metadata Language: English (en)

Character set: ISO/IEC 8859-1 (also known as Latin 1)

Resource type: dataset

Hierarchy level name: dataset

Metadata Date: 2022-08-03T07:35:49

Metadata standard name: UK GEMINI

Metadata standard version: 2.3

Environmental Information Data Centre

Lancaster Environment Centre, Library Avenue, Bailrigg , Lancaster , LA1 4AP , UK

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