Welsh Lakes Bathymetry Data

Natural Resources Wales

Bathymetric data from Welsh lakes collated from documentary and electronic sources and re-formatted into a consistent and accessible form and structure. The data includes transformed raw coordinate and depth data to bathymetric surface rasters at 0.5 m interval polygon shapefiles that can be placed into GIS software with volume/depth and area/depth data for the lakes at the same 0.5 m interval. The data supplied collates existing bathymetric data to produce a GIS layers that display detailed bathymetric maps of all the Welsh lakes.

Data was collated from sources from 1902 onwards. Standardisation and statistical analysis was undertaken in 2010. Depth measurements obtained using hand held echo sounder and boat mounted systems, geographic locations obtained from original contour lake maps, approximate geographical locations and handheld GPS units to obtain accurate grid references. The confidence in this dataset is high as data collated and analysed by experienced environmental professionals however for many of the lakes the raw data may be imperfect and should be treated with caution. In some cases no bathymetric information is available (e.g. Llyn Bodlyn, Llyn Ogwen, Llyn Hesgin, Llyn Bodlyn, Llyn Du) and this information is available as spot data only.

Attribution Statement

Contains Natural Resources Wales information © Natural Resources Wales and Database Right. All rights Reserved. Centre for Ecology & Hydrology © UKRI (CEH). © ENSIS-ECRC, University College London

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Spatial data (2)

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  • Wales Lakes Bathymetry Points

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  • Wales Lakes Bathymetry Polygons

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Type:
Spatial data
Category:
Inland Waters

Inland water features, drainage systems and their characteristics. Examples: rivers and glaciers, salt lakes, water utilization plans, dams, currents, floods, water quality, hydrographic charts

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Non-Commercial Government Licence for public sector information

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Language
English
Spatial Representation Type
Vector data is used to represent geographic data
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