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Picking up the pieces - harmonising and collating seabed substrate data for European maritime areas
Kaskela, A.M.; Kotilainen, A.T.; Alanen, U.; Cooper, R.; Green, S.; Guinan, J.; Van Heteren, S.; Kihlman, S.; Van Lancker, V.; Stevenson, A.; EMODnet Geology Partners (2019). Picking up the pieces - harmonising and collating seabed substrate data for European maritime areas. Geosciences 9(2): 84. https://dx.doi.org/10.3390/geosciences9020084
In: Geosciences. MDPI: Switzerland. ISSN 2076-3263; e-ISSN 2076-3263, more
Peer reviewed article  

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Keyword
    Marine/Coastal
Author keywords
    marine geology; seafloor mapping; seabed substrate; harmonisation;confidence; spatial scale; data gaps; European seas; EMODnet

Authors  Top 
  • Kaskela, A.M.
  • Kotilainen, A.T.
  • Alanen, U.
  • Cooper, R.
  • Green, S.
  • Guinan, J.
  • Van Heteren, S.
  • Kihlman, S.
  • Van Lancker, V., more
  • Stevenson, A.
  • EMODnet Geology Partners

Abstract
    The poor access to data on the marine environment is a handicap to government decision-making, a barrier to scientific understanding and an obstacle to economic growth. In this light, the European Commission initiated the European Marine Observation and Data Network (EMODnet) in 2009 to assemble and disseminate hitherto dispersed marine data. In the ten years since then, EMODnet has become a key producer of publicly available, harmonised datasets covering broad areas. This paper describes the methodologies applied in EMODnet Geology project to produce fully populated GIS layers of seabed substrate distribution for the European marine areas. We describe steps involved in translating national seabed substrate data, conforming to various standards, into a uniform EMODnet substrate classification scheme (i.e., the Folk sediment classification). Rock and boulders form an additional substrate class. Seabed substrate data products at scales of 1:250,000 and 1:1 million, compiled using descriptions and analyses of seabed samples as well as interpreted acoustic images, cover about 20% and 65% of the European maritime areas, respectively. A simple confidence assessment, based on sample and acoustic coverage, is helpful in identifying data gaps. The harmonised seabed substrate maps are particularly useful in supraregional, transnational and pan-European marine spatial planning.

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