Data-driven insights into correlation among geophysical setting, topography and seafloor sediments in the Ross Sea, Antarctic
Detailed mapping based on the high-resolution grids, such as GEBCO, ETOPO1, GlobSed, EGM- 2008 is crucial for various domains of Earth sciences: geophysics, glaciology, Quaternary, sedimentology, geology, environmental science, geomorphology, etc. The study presented a GMT-based scripting techniques...
Main Author: | |
---|---|
Format: | Text |
Language: | English |
Published: |
Zenodo
2021
|
Subjects: | |
Online Access: | https://dx.doi.org/10.5281/zenodo.4538763 https://zenodo.org/record/4538763 |
id |
ftdatacite:10.5281/zenodo.4538763 |
---|---|
record_format |
openpolar |
spelling |
ftdatacite:10.5281/zenodo.4538763 2023-05-15T14:04:22+02:00 Data-driven insights into correlation among geophysical setting, topography and seafloor sediments in the Ross Sea, Antarctic Lemenkova, Polina 2021 https://dx.doi.org/10.5281/zenodo.4538763 https://zenodo.org/record/4538763 en eng Zenodo https://dx.doi.org/10.5281/zenodo.4538762 Open Access Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 info:eu-repo/semantics/openAccess CC-BY Ross Sea Antarctic Southern Ocean Cartography Geophysics FOS Earth and related environmental sciences Bathymetry GMT Text Journal article article-journal ScholarlyArticle 2021 ftdatacite https://doi.org/10.5281/zenodo.4538763 https://doi.org/10.5281/zenodo.4538762 2021-11-05T12:55:41Z Detailed mapping based on the high-resolution grids, such as GEBCO, ETOPO1, GlobSed, EGM- 2008 is crucial for various domains of Earth sciences: geophysics, glaciology, Quaternary, sedimentology, geology, environmental science, geomorphology, etc. The study presented a GMT-based scripting techniques of the cartographic data processing aimed at the comparative analysis of the bathymetry, sediment thickness, geologic objects and geophysical settings in the study area based on various datasets. The study area is located in the Ross Sea, Antarctic. The highest values of the sediment thickness over 7,500 m are dominating in the southwest segment of the Ross Sea closer to the Victoria Land, followed by the region over the Ross Ice Shelf with values between 5,500 to 7,000 m (170°-175°W). The increased sediment thickness (2,500 to 3,000 m) was also mapped seen in the region NE off the Sulzberger Bay (70-75°S to 140-155°W), caused by the closeness of the Marie Bird Land ice coasts. A remarkable correlation between the gravity and the topography of the sea-land border in the Marie Bird Land area is well reflected in the coastal line and a set of the higher values in the free-air gravity. On the contrary, negative values (–60 to -80 mGal) are notable along the submarine toughs stretching parallel in the western part of the basin: e.g. the trough stretching in NW-SE direction in the 170°W-175°E, 65°S-68°S, between the 167°W- 175°W, 70°S-72°S. Such correlations are clearly visible on the map, indicating geological lineaments and bathymetric depressions correlating with gravity grids. The paper contributes to the regional studies of the Ross Sea, the Antarctic and Polar region, and development of the cartographic technical methodologies by presenting an application of the GMT for thematic mapping. Text Antarc* Antarctic Ice Shelf Ross Ice Shelf Ross Sea Southern Ocean Sulzberger Bay Victoria Land DataCite Metadata Store (German National Library of Science and Technology) Antarctic Southern Ocean The Antarctic Ross Sea Victoria Land Ross Ice Shelf Sulzberger Bay ENVELOPE(-152.000,-152.000,-77.000,-77.000) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Ross Sea Antarctic Southern Ocean Cartography Geophysics FOS Earth and related environmental sciences Bathymetry GMT |
spellingShingle |
Ross Sea Antarctic Southern Ocean Cartography Geophysics FOS Earth and related environmental sciences Bathymetry GMT Lemenkova, Polina Data-driven insights into correlation among geophysical setting, topography and seafloor sediments in the Ross Sea, Antarctic |
topic_facet |
Ross Sea Antarctic Southern Ocean Cartography Geophysics FOS Earth and related environmental sciences Bathymetry GMT |
description |
Detailed mapping based on the high-resolution grids, such as GEBCO, ETOPO1, GlobSed, EGM- 2008 is crucial for various domains of Earth sciences: geophysics, glaciology, Quaternary, sedimentology, geology, environmental science, geomorphology, etc. The study presented a GMT-based scripting techniques of the cartographic data processing aimed at the comparative analysis of the bathymetry, sediment thickness, geologic objects and geophysical settings in the study area based on various datasets. The study area is located in the Ross Sea, Antarctic. The highest values of the sediment thickness over 7,500 m are dominating in the southwest segment of the Ross Sea closer to the Victoria Land, followed by the region over the Ross Ice Shelf with values between 5,500 to 7,000 m (170°-175°W). The increased sediment thickness (2,500 to 3,000 m) was also mapped seen in the region NE off the Sulzberger Bay (70-75°S to 140-155°W), caused by the closeness of the Marie Bird Land ice coasts. A remarkable correlation between the gravity and the topography of the sea-land border in the Marie Bird Land area is well reflected in the coastal line and a set of the higher values in the free-air gravity. On the contrary, negative values (–60 to -80 mGal) are notable along the submarine toughs stretching parallel in the western part of the basin: e.g. the trough stretching in NW-SE direction in the 170°W-175°E, 65°S-68°S, between the 167°W- 175°W, 70°S-72°S. Such correlations are clearly visible on the map, indicating geological lineaments and bathymetric depressions correlating with gravity grids. The paper contributes to the regional studies of the Ross Sea, the Antarctic and Polar region, and development of the cartographic technical methodologies by presenting an application of the GMT for thematic mapping. |
format |
Text |
author |
Lemenkova, Polina |
author_facet |
Lemenkova, Polina |
author_sort |
Lemenkova, Polina |
title |
Data-driven insights into correlation among geophysical setting, topography and seafloor sediments in the Ross Sea, Antarctic |
title_short |
Data-driven insights into correlation among geophysical setting, topography and seafloor sediments in the Ross Sea, Antarctic |
title_full |
Data-driven insights into correlation among geophysical setting, topography and seafloor sediments in the Ross Sea, Antarctic |
title_fullStr |
Data-driven insights into correlation among geophysical setting, topography and seafloor sediments in the Ross Sea, Antarctic |
title_full_unstemmed |
Data-driven insights into correlation among geophysical setting, topography and seafloor sediments in the Ross Sea, Antarctic |
title_sort |
data-driven insights into correlation among geophysical setting, topography and seafloor sediments in the ross sea, antarctic |
publisher |
Zenodo |
publishDate |
2021 |
url |
https://dx.doi.org/10.5281/zenodo.4538763 https://zenodo.org/record/4538763 |
long_lat |
ENVELOPE(-152.000,-152.000,-77.000,-77.000) |
geographic |
Antarctic Southern Ocean The Antarctic Ross Sea Victoria Land Ross Ice Shelf Sulzberger Bay |
geographic_facet |
Antarctic Southern Ocean The Antarctic Ross Sea Victoria Land Ross Ice Shelf Sulzberger Bay |
genre |
Antarc* Antarctic Ice Shelf Ross Ice Shelf Ross Sea Southern Ocean Sulzberger Bay Victoria Land |
genre_facet |
Antarc* Antarctic Ice Shelf Ross Ice Shelf Ross Sea Southern Ocean Sulzberger Bay Victoria Land |
op_relation |
https://dx.doi.org/10.5281/zenodo.4538762 |
op_rights |
Open Access Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5281/zenodo.4538763 https://doi.org/10.5281/zenodo.4538762 |
_version_ |
1766275412384546816 |