GCN - Strategic Opportunity Areas (Hertfordshire)
Summary
This dataset identifies areas where the addition of new ponds would benefit Great Crested Newt populations.
The core areas contain a pond density of 2+ (i.e. there are 2+ ponds within 250m of any 25m square) where great crested newt presence has been predicted.
Fringe areas contain a pond density of <2 (i.e. there are fewer than 2 ponds within 250m of any 25m square) where great crested newt presence has been predicted or are within a 250m of a Core Area.
Higher scores are associated with darker colouration and represent a greater presence of suitable habitat features:
distance from rivers 50 - 1000m arable density 50 - 100% urban denity 40 - 100% grassland density 5 - 50% distrance from woodland < 100m distance to nearest pond 0 - 150m
These suitable habitat features have been given a score of ‘1’.
distance from rivers 50 - 1000m grassland density 5 - 50% distrance from woodland < 100m distance to nearest pond 0 - 150m
These suitable habitat features have been given a score of ‘-1’.
arable density 50 - 100% urban denity 40 - 100% Urban areas greater than 2ha (+400m buffer), roads (7.5m), rivers (7.5m) and Environment Agency Flood Zone 2 have been excluded.
Categories
Keywords
N/A
Use limitation statement
There are no public access constraints to this data. Use of this data is subject to the licence identified.
Attribution statement
© Natural England, 2023 Based upon LCM2015 © NERC (CEH) 2011. Contains Ordnance Survey data © Crown Copyright 2007. Based upon LCM2015 © NERC (CEH) 2017. Contains Ordnance Survey data © Crown Copyright 2007, Licence number 100017572. Contains data supplied by Natural Environment Research Council © NERC (Centre for Ecology & Hydrology) and © Natural England. Soils Data © Cranfield University (NSRI) and for the Controller of HMSO 2019. Based upon LCM2007 © NERC (CEH) 2011. Contains Ordnance Survey data © Crown Copyright 2007. © third party licensors. Contains, or is derived from, information supplied by the Ordnance Survey and Rural Payments Agency. © Crown copyright and database rights 2019. © Freshwater Habitats Trust, PondNet monitoring scheme 2018 © Contains Ordnance Survey data © Crown copyright and database right, 2020 © Hertfordshire County Council © Crown copyright and database rights 2020 Ordnance Survey 100019606 © St Albans City & District Council © Crown copyright and database rights 2021 Ordnance Survey 100018953 © Three Rivers District Council © Crown copyright and database rights 2021 Ordnance Survey 100018686 © Welwyn Hatfield Borough Council © Crown copyright and database rights 2021 Ordnance Survey 100019547 © Broxbourne Borough Council © Crown copyright and database rights 2021 © Dacorum Borough Council, 2021; © East Herts Council, 2021; © Hertsmere Borough Council, 2021; © Stevenage Borough Council, 2021; © Watford Borough Council, 2021 Contains, or is derived from, information supplied by Ordnance Survey. © Crown copyright and database rights 2020 Ordnance Survey 100022021. Contains Ordnance Survey data © Crown copyright and database right, 2020
Use constraints
Publicly Accessible
Technical information
Update frequency
unknown
Lineage
Data used to generate this derived data set includes the 2015 CEH Land Cover map (woodland, grassland, arable and urban land classifications), OS MasterMap (pond locations that have been converted by NE into pond densities), Natural Engalnd GCN Class License Survey Returns England, Natural England GCN Pond Surveys DLL 17 18 19, OS Open Rivers, OS Open Roads, OS Boundary Line District Boundaries, Freshwater Habitats Trust PondNet GCN data and Allocations data from Hertfordshire County Council, St Albans City & District Council, Three Rivers District Council, Welwyn Hatfield Borough Council, Broxbourne Borough Council, Dacorum Borough Council, East Herts Council, Hertsmere Borough Council, Stevenage Borough Council, Watford Borough Council DOI for LCM2015 25m raster data for Great Britain: Rowland, C.S.; Morton, R.D.; Carrasco, L.; McShane, G.; O’Neil, A.W.; Wood, C.M. (2017) Land Cover Map 2015 (25m raster, GB). NERC Environmental Information Data Centre. https://doi.org/10.5285/bb15e200-9349-403c-bda9-b430093807c7 DOI for LCM2015 Vector data for Great Britain: Rowland, C.S.; Morton, R.D.; Carrasco, L.; McShane, G.; O’Neil, A.W.; Wood, C.M. (2017) Land Cover Map 2015 (vector, GB). NERC Environmental Information Data Centre. https://doi.org/10.5285/6c6c9203-7333-4d96-88ab-78925e7a4e73
Spatial information
Coordinate reference system
http://www.opengis.net/def/crs/EPSG/0/27700Geographic extent
- Latitude from: 51.6 to 52.08
- Longitude from: -0.74 to 0.2
Metadata information
Language
English
Metadata identifier
1c0a2f77-aebb-4b53-8a74-6add7e59e2c0
Published by
Natural England
Contact publisher
data.services@naturalengland.org.ukDataset reference dates
Creation date
15 February 2024
Revision date
15 February 2024
Publication date
N/A
Period
- From: 14 February 2024
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Data and Supporting Information
| Data services and download by area of interest | Link | Action |
|---|---|---|
| Download data by area of interest | N/A | Open link |
| GCN Strategic Opportunity Areas Hertfordshire WMS | Copy link | Preview |
| GCN Strategic Opportunity Areas Hertfordshire WFS | Copy link | N/A |
| OGC API - Features service | Copy link | Open link |
| Full downloads and supporting documentation | Format | Action |
|---|---|---|
| GCN Strategic Opportunity Areas (Hertfordshire) _ Natural England Open Data Geoportal.html | HTML | Download |
| GCN Strategic Opportunity Areas - Hertfordshire - Metadata.pdf | Download | |
| GCN_Strategic_Opportunity_Areas_Hertfordshire.lyr | LYR | Download |
| Non Commercial Government Licence.html | HTML | Download |