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BRITICE Glacial Map, version 2: a map and GIS database of glacial landforms of the last British-Irish Ice Sheet

Clark, Chris D.; Ely, Jeremy C.; Greenwood, Sarah L.; Hughes, Anna L.C.; Meehan, Robert; Barr, Iestyn D.; Bateman, Mark D.; Bradwell, Tom; Doole, Jenny; Evans, David J.A.; Jordan, Colm J.; Monteys, Xavier; Pellicer, Xavier M.; Sheehy, Michael

BRITICE Glacial Map, version 2: a map and GIS database of glacial landforms of the last British-Irish Ice Sheet Thumbnail


Chris D. Clark

Jeremy C. Ely

Sarah L. Greenwood

Anna L.C. Hughes

Robert Meehan

Iestyn D. Barr

Mark D. Bateman

Tom Bradwell

Jenny Doole

Colm J. Jordan

Xavier Monteys

Xavier M. Pellicer

Michael Sheehy


During the last glaciation, most of the British Isles and the surrounding continental shelf were covered by the British–Irish Ice Sheet (BIIS). An earlier compilation from the existing literature (BRITICE version 1) assembled the relevant glacial geomorphological evidence into a freely available GIS geodatabase and map (Clark et al. 2004: Boreas 33, 359). New high-resolution digital elevation models, of the land and seabed, have become available casting the glacial landform record of the British Isles in a new light and highlighting the shortcomings of the V.1 BRITICE compilation. Here we present a wholesale revision of the evidence, onshore and offshore, to produce BRITICE version 2, which now also includes Ireland. All published geomorphological evidence pertinent to the behaviour of the ice sheet is included, up to the census date of December 2015. The revised GIS database contains over 170 000 geospatially referenced and attributed elements – an eightfold increase in information from the previous version. The compiled data include: drumlins, ribbed moraine, crag-and-tails, mega-scale glacial lineations, glacially streamlined bedrock (grooves, roches moutonnées, whalebacks), glacial erratics, eskers, meltwater channels (subglacial, lateral, proglacial and tunnel valleys), moraines, trimlines, cirques, trough-mouth fans and evidence defining ice-dammed lakes. The increased volume of features necessitates different map/database products with varying levels of data generalization, namely: (i) an unfiltered GIS database containing all mapping; (ii) a filtered GIS database, resolving data conflicts and with edits to improve geo-locational accuracy (available as GIS data and PDF maps); and (iii) a cartographically generalized map to provide an overview of the distribution and types of features at the ice-sheet scale that can be printed at A0 paper size at a 1:1 250 000 scale. All GIS data, the maps (as PDFs) and a bibliography of all published sources are available for download from:


Clark, C. D., Ely, J. C., Greenwood, S. L., Hughes, A. L., Meehan, R., Barr, I. D., …Sheehy, M. (2018). BRITICE Glacial Map, version 2: a map and GIS database of glacial landforms of the last British-Irish Ice Sheet. Boreas: An International Journal of Quaternary Research, 47(1), 11-e8.

Journal Article Type Article
Acceptance Date Jun 28, 2017
Online Publication Date Aug 29, 2017
Publication Date Jan 2, 2018
Deposit Date Sep 25, 2017
Publicly Available Date Sep 25, 2017
Journal Boreas
Print ISSN 0300-9483
Electronic ISSN 1502-3885
Publisher Wiley
Peer Reviewed Peer Reviewed
Volume 47
Issue 1
Pages 11-e8


Published Journal Article (Advance online version) (9.2 Mb)

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Copyright Statement
Advance online version © 2017 The Authors. Boreas published by John Wiley & Sons Ltd on behalf of The Boreas Collegium This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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