The geomorphology of Ireland’s continental shelf

Riccardo Arosio, A.J. Wheeler, Fabio Sacchetti, Janine Guinan, S. Benetti, Eimear O'Keefe, Katrien J. J. Van Landeghem, Luis Conti, Thomas Furey, Aaron Lim

Research output: Contribution to journalArticlepeer-review


The Irish Shelf Seabed Geomorphological Map (ISSGM) (v2023) presented here, is the first high-resolution geomorphological map of the entire Irish continental shelf. This large-scale mapping exercise took advantage of the vast INFOMAR multibeam echosounder dataset, and used a protocol of semi-automated mapping techniques to accurately and rapidly extract seabed features. All previous mapping efforts and existing literature on the Irish shallow shelf geomorphology have also been collated and integrated in the map, critically evaluating the previous interpretations. An internationally standardised classification scheme was adopted, aligning the ISSGM (v2023) to other international geomorphological work. At a national level, this detailed geomorphological digital map is intended primarily as a resource to better inform multiple offshore activities and management of the marine environment. The map also acts as a baseline for future studies in marine geomorphology, as it identifies gaps in the knowledge and highlights areas of contentious interpretation that require further work. The map is available online on the Irish Marine Atlas ( – Geology Theme).
Original languageEnglish
Article number2283192
Pages (from-to)1-26
Number of pages26
JournalJournal of Maps
Issue number1
Early online date18 Nov 2023
Publication statusPublished online - 18 Nov 2023

Bibliographical note

Funding Information:
Riccardo Arosio received funding from the Irish Marine Institute’s research [grant number PDOC 19/08/03]. Firstly, we would like to thank the hard work of the captains and crews of the Irish research vessels that assisted in the collection of the Irish National Seabed Survey and INFOMAR datasets. We are grateful to Paul Dunlop and Kieran Craven for the useful discussions on some of the interpretations. We thank our reviewers, Mariacristina Prampolini, Tom Bradwell and Steven Bernard for the positive and useful comments on the manuscript and map. The map contains Irish Public Sector Data (Marine Institute & Geological Survey Ireland) licensed under a Creative Commons Attribution 4.0 International (CC BY 4.0) licence.

Publisher Copyright:
© 2023 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group on behalf of Journal of Maps.


  • Geomorphological map
  • Irishshelf
  • standardised
  • bathymetry
  • semi-automation
  • Irish shelf


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