Geomorphometric characterization of pockmarks by using a GIS-based semi-automated toolbox
Pockmarks are seabed depressions developed by fluid flow processes that can be found in vast numbers in many marine and lacustrine environments. Manual mapping of these features based on geophysical data is, however, extremely time-consuming and subjective. Here, we present results from a semi-autom...
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2018
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Online Access: | http://nora.nerc.ac.uk/id/eprint/519921/ https://nora.nerc.ac.uk/id/eprint/519921/1/gafeira%20et%20al%20geosciences-08-00154.pdf https://doi.org/10.3390/geosciences8050154 |
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ftnerc:oai:nora.nerc.ac.uk:519921 2023-05-15T15:38:57+02:00 Geomorphometric characterization of pockmarks by using a GIS-based semi-automated toolbox Gafeira, Joana Dolan, Margaret Monteys, Xavier 2018 text http://nora.nerc.ac.uk/id/eprint/519921/ https://nora.nerc.ac.uk/id/eprint/519921/1/gafeira%20et%20al%20geosciences-08-00154.pdf https://doi.org/10.3390/geosciences8050154 en eng MDPI https://nora.nerc.ac.uk/id/eprint/519921/1/gafeira%20et%20al%20geosciences-08-00154.pdf Gafeira, Joana; Dolan, Margaret; Monteys, Xavier. 2018 Geomorphometric characterization of pockmarks by using a GIS-based semi-automated toolbox. Geosciences, 8 (5), 154. https://doi.org/10.3390/geosciences8050154 <https://doi.org/10.3390/geosciences8050154> cc_by_4 CC-BY Publication - Article PeerReviewed 2018 ftnerc https://doi.org/10.3390/geosciences8050154 2023-02-04T19:46:28Z Pockmarks are seabed depressions developed by fluid flow processes that can be found in vast numbers in many marine and lacustrine environments. Manual mapping of these features based on geophysical data is, however, extremely time-consuming and subjective. Here, we present results from a semi-automated mapping toolbox developed to allow more efficient and objective mapping of pockmarks. This ArcGIS-based toolbox recognizes, spatially delineates, and morphometrically describes pockmarks. Since it was first developed, the toolbox has helped to map and characterize several thousands of pockmarks on the UK continental shelf, especially within the central North Sea. This paper presents the latest developments in the functionality of the toolbox and its adaptability for application to other geographic areas (Barents Sea, Norway, and Malin Deep, Ireland) with varied pockmark and seabed morphologies, and in different geological settings. The morphometric characterization of vast numbers of pockmarks allows an unprecedented statistical analysis of their morphology. The outputs from the toolbox provide an objective, quantitative baseline for combining this information with the geological and oceanographical knowledge of individual areas, which can provide further insights into the processes responsible for their development and their influence on local seabed conditions and habitats Article in Journal/Newspaper Barents Sea Natural Environment Research Council: NERC Open Research Archive Barents Sea Norway Geosciences 8 5 154 |
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Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
English |
description |
Pockmarks are seabed depressions developed by fluid flow processes that can be found in vast numbers in many marine and lacustrine environments. Manual mapping of these features based on geophysical data is, however, extremely time-consuming and subjective. Here, we present results from a semi-automated mapping toolbox developed to allow more efficient and objective mapping of pockmarks. This ArcGIS-based toolbox recognizes, spatially delineates, and morphometrically describes pockmarks. Since it was first developed, the toolbox has helped to map and characterize several thousands of pockmarks on the UK continental shelf, especially within the central North Sea. This paper presents the latest developments in the functionality of the toolbox and its adaptability for application to other geographic areas (Barents Sea, Norway, and Malin Deep, Ireland) with varied pockmark and seabed morphologies, and in different geological settings. The morphometric characterization of vast numbers of pockmarks allows an unprecedented statistical analysis of their morphology. The outputs from the toolbox provide an objective, quantitative baseline for combining this information with the geological and oceanographical knowledge of individual areas, which can provide further insights into the processes responsible for their development and their influence on local seabed conditions and habitats |
format |
Article in Journal/Newspaper |
author |
Gafeira, Joana Dolan, Margaret Monteys, Xavier |
spellingShingle |
Gafeira, Joana Dolan, Margaret Monteys, Xavier Geomorphometric characterization of pockmarks by using a GIS-based semi-automated toolbox |
author_facet |
Gafeira, Joana Dolan, Margaret Monteys, Xavier |
author_sort |
Gafeira, Joana |
title |
Geomorphometric characterization of pockmarks by using a GIS-based semi-automated toolbox |
title_short |
Geomorphometric characterization of pockmarks by using a GIS-based semi-automated toolbox |
title_full |
Geomorphometric characterization of pockmarks by using a GIS-based semi-automated toolbox |
title_fullStr |
Geomorphometric characterization of pockmarks by using a GIS-based semi-automated toolbox |
title_full_unstemmed |
Geomorphometric characterization of pockmarks by using a GIS-based semi-automated toolbox |
title_sort |
geomorphometric characterization of pockmarks by using a gis-based semi-automated toolbox |
publisher |
MDPI |
publishDate |
2018 |
url |
http://nora.nerc.ac.uk/id/eprint/519921/ https://nora.nerc.ac.uk/id/eprint/519921/1/gafeira%20et%20al%20geosciences-08-00154.pdf https://doi.org/10.3390/geosciences8050154 |
geographic |
Barents Sea Norway |
geographic_facet |
Barents Sea Norway |
genre |
Barents Sea |
genre_facet |
Barents Sea |
op_relation |
https://nora.nerc.ac.uk/id/eprint/519921/1/gafeira%20et%20al%20geosciences-08-00154.pdf Gafeira, Joana; Dolan, Margaret; Monteys, Xavier. 2018 Geomorphometric characterization of pockmarks by using a GIS-based semi-automated toolbox. Geosciences, 8 (5), 154. https://doi.org/10.3390/geosciences8050154 <https://doi.org/10.3390/geosciences8050154> |
op_rights |
cc_by_4 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3390/geosciences8050154 |
container_title |
Geosciences |
container_volume |
8 |
container_issue |
5 |
container_start_page |
154 |
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1766370393836224512 |