Dataset compilation by GRASS GIS for thematic mapping of Antarctica: Topographic surface, ice thickness, subglacial bed elevation and sediment thickness
This paper presents the GRASS GIS-based thematic mapping of Antarctica using scripting approach and associated datasets on topography and geophysics. The state-of-the art in cartographic development points at two important aspects. The first one comprises shell scripting promoted repeatability of th...
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ftmasarykunivojs:oai:ojs.journals.muni.cz:article/15418 2023-05-15T13:46:41+02:00 Dataset compilation by GRASS GIS for thematic mapping of Antarctica: Topographic surface, ice thickness, subglacial bed elevation and sediment thickness Lemenkova, Polina 2021-08-24 application/pdf http://journals.muni.cz/CPR/article/view/15418 eng eng Masaryk Univerzity http://journals.muni.cz/CPR/article/view/15418/12286 http://journals.muni.cz/CPR/article/view/15418 Copyright (c) 2020 Czech Polar Reports https://creativecommons.org/licenses/by-nc-nd/4.0 CC-BY-NC-ND Czech Polar Reports; Vol 11 No 1 (2021); 67-85 Czech Polar Reports; Vol. 11 No. 1 (2021); 67-85 1805-0697 1805-0689 Antarctic GRASS GIS script cartography mapping topography ETOPO1 ice shelf thickness sedimentation geoid geophysics info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2021 ftmasarykunivojs 2022-06-26T10:16:45Z This paper presents the GRASS GIS-based thematic mapping of Antarctica using scripting approach and associated datasets on topography and geophysics. The state-of-the art in cartographic development points at two important aspects. The first one comprises shell scripting promoted repeatability of the GIS technique, increased automatization in cartographic workflow, and compatibility of GRASS with Python, PROJ and GDAL libraries which enables advanced geospatial data processing: converting formats, re-projecting and spatial analysis. The second aspect is that data visualization greatly influences geologic research through improving the interpretation between the Antarctic glaciation and surface. This includes the machine learning algorithms of image classification enabling to distinguish between glacier and non-glacier surfaces through automatically partitioning data and analysis of various types of surfaces. Presented detailed maps of Antarctic include visualized datasets from the ETOPO1, GlobSed, EGM96 and Bedmap2 projects. The grids include bed and surface elevation, ETOPO1-based bathymetry and topography, bed, ice and sediment thickness, grounded bed uncertainty, subglacial bed elevation, geoid undulations, ice mask grounded and shelves. Data show the distribution of the present-day glacier, geophysical fields and topographic landforms for analysis of processes and correlations between the geophysical and geological phenomena. Advances in scripting cartography are significant contributions to the geological and glaciological research. Processing high-resolution datasets of Southern Ocean retrieved by remote sensing methods present new steps in automatization of the digital mapping, as presented in this research, and promotes comprehensive monitoring of geological, permafrost and glacial processes in Antarctica. All maps have been plotted using GRASS GIS version 7.8. with technical details of scripts described and interpreted. Article in Journal/Newspaper Antarc* Antarctic Antarctica Ice Ice Shelf permafrost Southern Ocean Masaryk University Journals Antarctic Southern Ocean The Antarctic |
institution |
Open Polar |
collection |
Masaryk University Journals |
op_collection_id |
ftmasarykunivojs |
language |
English |
topic |
Antarctic GRASS GIS script cartography mapping topography ETOPO1 ice shelf thickness sedimentation geoid geophysics |
spellingShingle |
Antarctic GRASS GIS script cartography mapping topography ETOPO1 ice shelf thickness sedimentation geoid geophysics Lemenkova, Polina Dataset compilation by GRASS GIS for thematic mapping of Antarctica: Topographic surface, ice thickness, subglacial bed elevation and sediment thickness |
topic_facet |
Antarctic GRASS GIS script cartography mapping topography ETOPO1 ice shelf thickness sedimentation geoid geophysics |
description |
This paper presents the GRASS GIS-based thematic mapping of Antarctica using scripting approach and associated datasets on topography and geophysics. The state-of-the art in cartographic development points at two important aspects. The first one comprises shell scripting promoted repeatability of the GIS technique, increased automatization in cartographic workflow, and compatibility of GRASS with Python, PROJ and GDAL libraries which enables advanced geospatial data processing: converting formats, re-projecting and spatial analysis. The second aspect is that data visualization greatly influences geologic research through improving the interpretation between the Antarctic glaciation and surface. This includes the machine learning algorithms of image classification enabling to distinguish between glacier and non-glacier surfaces through automatically partitioning data and analysis of various types of surfaces. Presented detailed maps of Antarctic include visualized datasets from the ETOPO1, GlobSed, EGM96 and Bedmap2 projects. The grids include bed and surface elevation, ETOPO1-based bathymetry and topography, bed, ice and sediment thickness, grounded bed uncertainty, subglacial bed elevation, geoid undulations, ice mask grounded and shelves. Data show the distribution of the present-day glacier, geophysical fields and topographic landforms for analysis of processes and correlations between the geophysical and geological phenomena. Advances in scripting cartography are significant contributions to the geological and glaciological research. Processing high-resolution datasets of Southern Ocean retrieved by remote sensing methods present new steps in automatization of the digital mapping, as presented in this research, and promotes comprehensive monitoring of geological, permafrost and glacial processes in Antarctica. All maps have been plotted using GRASS GIS version 7.8. with technical details of scripts described and interpreted. |
format |
Article in Journal/Newspaper |
author |
Lemenkova, Polina |
author_facet |
Lemenkova, Polina |
author_sort |
Lemenkova, Polina |
title |
Dataset compilation by GRASS GIS for thematic mapping of Antarctica: Topographic surface, ice thickness, subglacial bed elevation and sediment thickness |
title_short |
Dataset compilation by GRASS GIS for thematic mapping of Antarctica: Topographic surface, ice thickness, subglacial bed elevation and sediment thickness |
title_full |
Dataset compilation by GRASS GIS for thematic mapping of Antarctica: Topographic surface, ice thickness, subglacial bed elevation and sediment thickness |
title_fullStr |
Dataset compilation by GRASS GIS for thematic mapping of Antarctica: Topographic surface, ice thickness, subglacial bed elevation and sediment thickness |
title_full_unstemmed |
Dataset compilation by GRASS GIS for thematic mapping of Antarctica: Topographic surface, ice thickness, subglacial bed elevation and sediment thickness |
title_sort |
dataset compilation by grass gis for thematic mapping of antarctica: topographic surface, ice thickness, subglacial bed elevation and sediment thickness |
publisher |
Masaryk Univerzity |
publishDate |
2021 |
url |
http://journals.muni.cz/CPR/article/view/15418 |
geographic |
Antarctic Southern Ocean The Antarctic |
geographic_facet |
Antarctic Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Antarctica Ice Ice Shelf permafrost Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctica Ice Ice Shelf permafrost Southern Ocean |
op_source |
Czech Polar Reports; Vol 11 No 1 (2021); 67-85 Czech Polar Reports; Vol. 11 No. 1 (2021); 67-85 1805-0697 1805-0689 |
op_relation |
http://journals.muni.cz/CPR/article/view/15418/12286 http://journals.muni.cz/CPR/article/view/15418 |
op_rights |
Copyright (c) 2020 Czech Polar Reports https://creativecommons.org/licenses/by-nc-nd/4.0 |
op_rightsnorm |
CC-BY-NC-ND |
_version_ |
1766245089231765504 |