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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ftmdpi:oai:mdpi.com:/2076-3263/8/5/154/ 2023-08-20T04:05:30+02:00 Geomorphometric Characterization of Pockmarks by Using a GIS-Based Semi-Automated Toolbox Joana Gafeira Margaret F. J. Dolan Xavier Monteys agris 2018-04-27 application/pdf https://doi.org/10.3390/geosciences8050154 EN eng Multidisciplinary Digital Publishing Institute Geophysics https://dx.doi.org/10.3390/geosciences8050154 https://creativecommons.org/licenses/by/4.0/ Geosciences; Volume 8; Issue 5; Pages: 154 pockmarks automated-mapping ArcGIS Glaciated Margin North Sea Malin Basin Barents Sea Text 2018 ftmdpi https://doi.org/10.3390/geosciences8050154 2023-07-31T21:29:46Z 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. Text Barents Sea MDPI Open Access Publishing Barents Sea Norway Geosciences 8 5 154 |
institution |
Open Polar |
collection |
MDPI Open Access Publishing |
op_collection_id |
ftmdpi |
language |
English |
topic |
pockmarks automated-mapping ArcGIS Glaciated Margin North Sea Malin Basin Barents Sea |
spellingShingle |
pockmarks automated-mapping ArcGIS Glaciated Margin North Sea Malin Basin Barents Sea Joana Gafeira Margaret F. J. Dolan Xavier Monteys Geomorphometric Characterization of Pockmarks by Using a GIS-Based Semi-Automated Toolbox |
topic_facet |
pockmarks automated-mapping ArcGIS Glaciated Margin North Sea Malin Basin Barents Sea |
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 |
Text |
author |
Joana Gafeira Margaret F. J. Dolan Xavier Monteys |
author_facet |
Joana Gafeira Margaret F. J. Dolan Xavier Monteys |
author_sort |
Joana Gafeira |
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 |
Multidisciplinary Digital Publishing Institute |
publishDate |
2018 |
url |
https://doi.org/10.3390/geosciences8050154 |
op_coverage |
agris |
geographic |
Barents Sea Norway |
geographic_facet |
Barents Sea Norway |
genre |
Barents Sea |
genre_facet |
Barents Sea |
op_source |
Geosciences; Volume 8; Issue 5; Pages: 154 |
op_relation |
Geophysics https://dx.doi.org/10.3390/geosciences8050154 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/geosciences8050154 |
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Geosciences |
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8 |
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5 |
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154 |
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