Application of Geobia to map the seafloor

M. Diesing

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Abstract

Geographic Object-Based Image Analysis (GEOBIA) has been successfully employed to map terrestrial environments. However,
71% of Earth's surface is covered by seawater and standard optical methods suitable for mapping the land surface have limited
application in such environments. Application of GEOBIA to marine environments has nevertheless been attempted and can
generally be subdivided into three domains: 1. The intertidal zone and shallow subtidal zone have been mapped with optical data and
application of GEOBIA in such environments can be seen as a seaward extension of terrestrial approaches. 2. Photographs of the
seafloor give very detailed but spatially limited information. GEOBIA methods have been applied to classify benthic species and
habitats and estimate seafloor complexity among others. 3. Due to the rapid attenuation of light in water, the method of choice to
map the seafloor employs sound. Modern multi-beam echosounders map the seafloor in high detail. Such sensors measure the
topography (water depth) and the strength of the returning signal (backscatter), which can be used to characterise the seafloor
substrates and habitats. This contribution will focus on the application of GEOBIA to marine acoustic datasets. A generic workflow
for object-based acoustic seafloor mapping will be showcased and the current state of the application of GEOBIA to marine acoustic
data will be discussed.
Original languageEnglish
Title of host publicationProceedings of GEOBIA 2016 : Solutions and synergies, 14-16 September 2016, Enschede, Netherlands
EditorsN. Kerle, M. Gerke, S. Lefevre
Place of PublicationEnschede
PublisherUniversity of Twente, Faculty of Geo-Information Science and Earth Observation (ITC)
Number of pages3
ISBN (Print)978-90-365-4201-2
DOIs
Publication statusPublished - 14 Sep 2016
Externally publishedYes
Event6th International Conference on Geographic Object-Based Image Analysis, GEOBIA 2016: Solutions & Synergies - University of Twente Faculty of Geo-Information and Earth Observation (ITC), Enschede, Netherlands
Duration: 14 Sep 201616 Sep 2016
Conference number: 6
https://www.geobia2016.com/

Conference

Conference6th International Conference on Geographic Object-Based Image Analysis, GEOBIA 2016
Abbreviated titleGEOBIA
CountryNetherlands
CityEnschede
Period14/09/1616/09/16
Internet address

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