Topographic surface modelling using raster grid datasets by GMT: example of the Kuril–Kamchatka Trench, Pacific Ocean
The study area is focused on the Kuril–Kamchatka Trench, North Pacific Ocean. This region is geologically complex, notable for the lithosphere activity, tectonic plates subduction and active volcanism. The submarine geomorphology is complicated through terraces, slopes, seamounts and erosional proce...
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ftunivbruxelles:oai:dipot.ulb.ac.be:2013/364003 2023-11-12T04:19:59+01:00 Topographic surface modelling using raster grid datasets by GMT: example of the Kuril–Kamchatka Trench, Pacific Ocean Lemenkova, Polina 2019-11-04 1 full-text file(s): application/pdf http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/364003 https://dipot.ulb.ac.be/dspace/bitstream/2013/364003/1/doi_347647.pdf en eng uri/info:doi/10.2478/rgg-2019-0008 https://dipot.ulb.ac.be/dspace/bitstream/2013/364003/1/doi_347647.pdf http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/364003 1 full-text file(s): info:eu-repo/semantics/openAccess Reports on Geodesy and Geoinformatics, 108 (1 Sciences exactes et naturelles Sciences de la terre et du cosmos Géodésie Géodynamique et tectonique Cartographie Géographie physique Géologie Géomorphologie et orographie Gravimétrie Océanographie physique et chimique Sciences de l'espace Séismologie Systèmes d'information géographique Volcanologie Sciences de l'ingénieur Disciplines graphiques Géodésie appliquée topographie [géodésie] Méthodes mathématiques et quantitatives Méthodologie de la recherche scientifique GMT cartography Kuril–Kamchatka Trench Raster Grid Modelling mapping data analysis info:eu-repo/semantics/article info:ulb-repo/semantics/articlePeerReview info:ulb-repo/semantics/openurl/article 2019 ftunivbruxelles 2023-10-25T22:23:29Z The study area is focused on the Kuril–Kamchatka Trench, North Pacific Ocean. This region is geologically complex, notable for the lithosphere activity, tectonic plates subduction and active volcanism. The submarine geomorphology is complicated through terraces, slopes, seamounts and erosional processes. Understanding geomorphic features of such a region requires precise modelling and effective visualization of the high-resolution data sets. Therefore, current research presents a Generic Mapping Tools (GMT) based algorithm proposing a solution for effective data processing and precise mapping: iterative module-based scripting for the automated digitizing and modelling. Methodology consists of the following steps: topographic mapping of the raster grids, marine gravity and geoid; semi-automatic digitizing of the orthogonal cross-section profiles; modelling geomorphic trends of the gradient slopes; computing raster surfaces from the xyz data sets by modules nearneighbor and XYZ2grd. Several types of the cartographic projections were used: oblique Mercator, Mercator cylindrical, conic equal-area Albers, conic equidistant. The cross-section geomorphic profiles in a perpendicular direction across the two selected segments of the trench were automatically digitized. Developed algorithm of the semi-automated digitizing of the profiles enabled to visualize gradients of the slope steepness of the trench. The data were then modelled to show gradient variations in its two segments. The results of the comparative geomorphic analysis of northern and southern transects revealed variations in different parts of the trench. Presented research provided more quantitative insights into the structure and settings of the submarine landforms of the hadal trench that still remains a question for the marine geology. The research demonstrated the effectiveness of the GMT: a variety of modules, approaches and tools that can be used to produce high-quality mapping and graphics. The GMT listings are provided for repeatability. Web of ... Article in Journal/Newspaper Kamchatka DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB) Géodésie ENVELOPE(139.846,139.846,-66.675,-66.675) Pacific |
institution |
Open Polar |
collection |
DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB) |
op_collection_id |
ftunivbruxelles |
language |
English |
topic |
Sciences exactes et naturelles Sciences de la terre et du cosmos Géodésie Géodynamique et tectonique Cartographie Géographie physique Géologie Géomorphologie et orographie Gravimétrie Océanographie physique et chimique Sciences de l'espace Séismologie Systèmes d'information géographique Volcanologie Sciences de l'ingénieur Disciplines graphiques Géodésie appliquée topographie [géodésie] Méthodes mathématiques et quantitatives Méthodologie de la recherche scientifique GMT cartography Kuril–Kamchatka Trench Raster Grid Modelling mapping data analysis |
spellingShingle |
Sciences exactes et naturelles Sciences de la terre et du cosmos Géodésie Géodynamique et tectonique Cartographie Géographie physique Géologie Géomorphologie et orographie Gravimétrie Océanographie physique et chimique Sciences de l'espace Séismologie Systèmes d'information géographique Volcanologie Sciences de l'ingénieur Disciplines graphiques Géodésie appliquée topographie [géodésie] Méthodes mathématiques et quantitatives Méthodologie de la recherche scientifique GMT cartography Kuril–Kamchatka Trench Raster Grid Modelling mapping data analysis Lemenkova, Polina Topographic surface modelling using raster grid datasets by GMT: example of the Kuril–Kamchatka Trench, Pacific Ocean |
topic_facet |
Sciences exactes et naturelles Sciences de la terre et du cosmos Géodésie Géodynamique et tectonique Cartographie Géographie physique Géologie Géomorphologie et orographie Gravimétrie Océanographie physique et chimique Sciences de l'espace Séismologie Systèmes d'information géographique Volcanologie Sciences de l'ingénieur Disciplines graphiques Géodésie appliquée topographie [géodésie] Méthodes mathématiques et quantitatives Méthodologie de la recherche scientifique GMT cartography Kuril–Kamchatka Trench Raster Grid Modelling mapping data analysis |
description |
The study area is focused on the Kuril–Kamchatka Trench, North Pacific Ocean. This region is geologically complex, notable for the lithosphere activity, tectonic plates subduction and active volcanism. The submarine geomorphology is complicated through terraces, slopes, seamounts and erosional processes. Understanding geomorphic features of such a region requires precise modelling and effective visualization of the high-resolution data sets. Therefore, current research presents a Generic Mapping Tools (GMT) based algorithm proposing a solution for effective data processing and precise mapping: iterative module-based scripting for the automated digitizing and modelling. Methodology consists of the following steps: topographic mapping of the raster grids, marine gravity and geoid; semi-automatic digitizing of the orthogonal cross-section profiles; modelling geomorphic trends of the gradient slopes; computing raster surfaces from the xyz data sets by modules nearneighbor and XYZ2grd. Several types of the cartographic projections were used: oblique Mercator, Mercator cylindrical, conic equal-area Albers, conic equidistant. The cross-section geomorphic profiles in a perpendicular direction across the two selected segments of the trench were automatically digitized. Developed algorithm of the semi-automated digitizing of the profiles enabled to visualize gradients of the slope steepness of the trench. The data were then modelled to show gradient variations in its two segments. The results of the comparative geomorphic analysis of northern and southern transects revealed variations in different parts of the trench. Presented research provided more quantitative insights into the structure and settings of the submarine landforms of the hadal trench that still remains a question for the marine geology. The research demonstrated the effectiveness of the GMT: a variety of modules, approaches and tools that can be used to produce high-quality mapping and graphics. The GMT listings are provided for repeatability. Web of ... |
format |
Article in Journal/Newspaper |
author |
Lemenkova, Polina |
author_facet |
Lemenkova, Polina |
author_sort |
Lemenkova, Polina |
title |
Topographic surface modelling using raster grid datasets by GMT: example of the Kuril–Kamchatka Trench, Pacific Ocean |
title_short |
Topographic surface modelling using raster grid datasets by GMT: example of the Kuril–Kamchatka Trench, Pacific Ocean |
title_full |
Topographic surface modelling using raster grid datasets by GMT: example of the Kuril–Kamchatka Trench, Pacific Ocean |
title_fullStr |
Topographic surface modelling using raster grid datasets by GMT: example of the Kuril–Kamchatka Trench, Pacific Ocean |
title_full_unstemmed |
Topographic surface modelling using raster grid datasets by GMT: example of the Kuril–Kamchatka Trench, Pacific Ocean |
title_sort |
topographic surface modelling using raster grid datasets by gmt: example of the kuril–kamchatka trench, pacific ocean |
publishDate |
2019 |
url |
http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/364003 https://dipot.ulb.ac.be/dspace/bitstream/2013/364003/1/doi_347647.pdf |
long_lat |
ENVELOPE(139.846,139.846,-66.675,-66.675) |
geographic |
Géodésie Pacific |
geographic_facet |
Géodésie Pacific |
genre |
Kamchatka |
genre_facet |
Kamchatka |
op_source |
Reports on Geodesy and Geoinformatics, 108 (1 |
op_relation |
uri/info:doi/10.2478/rgg-2019-0008 https://dipot.ulb.ac.be/dspace/bitstream/2013/364003/1/doi_347647.pdf http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/364003 |
op_rights |
1 full-text file(s): info:eu-repo/semantics/openAccess |
_version_ |
1782336181780873216 |