A geomorphological seabed classification for the Weddell Sea, Antarctica, with links to ArcGIS project files
Sea floor morphology plays an important role in many scientific disciplines such as ecology, hydrology and sedimentology since geomorphic features can act as physical controls for e.g. species distribution, oceanographically flow-path estimations or sedimentation processes. In this study, we provide...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.846871 2024-09-15T17:42:17+00:00 A geomorphological seabed classification for the Weddell Sea, Antarctica, with links to ArcGIS project files Jerosch, Kerstin Kuhn, Gerhard Krajnik, Ingo Scharf, Frauke Katharina Dorschel, Boris LATITUDE: -63.000000 * LONGITUDE: -20.000000 2015 text/tab-separated-values, 9 data points https://doi.pangaea.de/10.1594/PANGAEA.846871 https://doi.org/10.1594/PANGAEA.846871 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.846871 https://doi.org/10.1594/PANGAEA.846871 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Jerosch, Kerstin; Kuhn, Gerhard; Krajnik, Ingo; Scharf, Frauke Katharina; Dorschel, Boris (2015): A geomorphological seabed classification for the Weddell Sea, Antarctica. Marine Geophysical Research, https://doi.org/10.1007/s11001-015-9256-x AWI_GeoPhy AWI_Paleo File name File size Marine Geophysics @ AWI Paleoenvironmental Reconstructions from Marine Sediments @ AWI Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas South Atlantic Ocean Southern_Ocean_Atlantic_sector SPP1158 Uniform resource locator/link to file dataset 2015 ftpangaea https://doi.org/10.1594/PANGAEA.84687110.1007/s11001-015-9256-x 2024-08-21T00:02:27Z Sea floor morphology plays an important role in many scientific disciplines such as ecology, hydrology and sedimentology since geomorphic features can act as physical controls for e.g. species distribution, oceanographically flow-path estimations or sedimentation processes. In this study, we provide a terrain analysis of the Weddell Sea based on the 500 m × 500 m resolution bathymetry data provided by the mapping project IBCSO. Seventeen seabed classes are recognized at the sea floor based on a fine and broad scale Benthic Positioning Index calculation highlighting the diversity of the glacially carved shelf. Beside the morphology, slope, aspect, terrain rugosity and hillshade were calculated. Applying zonal statistics to the geomorphic features identified unambiguously the shelf edge of the Weddell Sea with a width of 45-70 km and a mean depth of about 1200 m ranging from 270 m to 4300 m. A complex morphology of troughs, flat ridges, pinnacles, steep slopes, seamounts, outcrops, and narrow ridges, structures with approx. 5-7 km width, build an approx. 40-70 km long swath along the shelf edge. The study shows where scarps and depressions control the connection between shelf and abyssal and where high and low declination within the scarps e.g. occur. For evaluation purpose, 428 grain size samples were added to the seabed class map. The mean values of mud, sand and gravel of those samples falling into a single seabed class was calculated, respectively, and assigned to a sediment texture class according to a common sediment classification scheme. Dataset Antarc* Antarctic Antarctica Sea ice South Atlantic Ocean Weddell Sea PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-20.000000,-20.000000,-63.000000,-63.000000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
AWI_GeoPhy AWI_Paleo File name File size Marine Geophysics @ AWI Paleoenvironmental Reconstructions from Marine Sediments @ AWI Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas South Atlantic Ocean Southern_Ocean_Atlantic_sector SPP1158 Uniform resource locator/link to file |
spellingShingle |
AWI_GeoPhy AWI_Paleo File name File size Marine Geophysics @ AWI Paleoenvironmental Reconstructions from Marine Sediments @ AWI Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas South Atlantic Ocean Southern_Ocean_Atlantic_sector SPP1158 Uniform resource locator/link to file Jerosch, Kerstin Kuhn, Gerhard Krajnik, Ingo Scharf, Frauke Katharina Dorschel, Boris A geomorphological seabed classification for the Weddell Sea, Antarctica, with links to ArcGIS project files |
topic_facet |
AWI_GeoPhy AWI_Paleo File name File size Marine Geophysics @ AWI Paleoenvironmental Reconstructions from Marine Sediments @ AWI Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas South Atlantic Ocean Southern_Ocean_Atlantic_sector SPP1158 Uniform resource locator/link to file |
description |
Sea floor morphology plays an important role in many scientific disciplines such as ecology, hydrology and sedimentology since geomorphic features can act as physical controls for e.g. species distribution, oceanographically flow-path estimations or sedimentation processes. In this study, we provide a terrain analysis of the Weddell Sea based on the 500 m × 500 m resolution bathymetry data provided by the mapping project IBCSO. Seventeen seabed classes are recognized at the sea floor based on a fine and broad scale Benthic Positioning Index calculation highlighting the diversity of the glacially carved shelf. Beside the morphology, slope, aspect, terrain rugosity and hillshade were calculated. Applying zonal statistics to the geomorphic features identified unambiguously the shelf edge of the Weddell Sea with a width of 45-70 km and a mean depth of about 1200 m ranging from 270 m to 4300 m. A complex morphology of troughs, flat ridges, pinnacles, steep slopes, seamounts, outcrops, and narrow ridges, structures with approx. 5-7 km width, build an approx. 40-70 km long swath along the shelf edge. The study shows where scarps and depressions control the connection between shelf and abyssal and where high and low declination within the scarps e.g. occur. For evaluation purpose, 428 grain size samples were added to the seabed class map. The mean values of mud, sand and gravel of those samples falling into a single seabed class was calculated, respectively, and assigned to a sediment texture class according to a common sediment classification scheme. |
format |
Dataset |
author |
Jerosch, Kerstin Kuhn, Gerhard Krajnik, Ingo Scharf, Frauke Katharina Dorschel, Boris |
author_facet |
Jerosch, Kerstin Kuhn, Gerhard Krajnik, Ingo Scharf, Frauke Katharina Dorschel, Boris |
author_sort |
Jerosch, Kerstin |
title |
A geomorphological seabed classification for the Weddell Sea, Antarctica, with links to ArcGIS project files |
title_short |
A geomorphological seabed classification for the Weddell Sea, Antarctica, with links to ArcGIS project files |
title_full |
A geomorphological seabed classification for the Weddell Sea, Antarctica, with links to ArcGIS project files |
title_fullStr |
A geomorphological seabed classification for the Weddell Sea, Antarctica, with links to ArcGIS project files |
title_full_unstemmed |
A geomorphological seabed classification for the Weddell Sea, Antarctica, with links to ArcGIS project files |
title_sort |
geomorphological seabed classification for the weddell sea, antarctica, with links to arcgis project files |
publisher |
PANGAEA |
publishDate |
2015 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.846871 https://doi.org/10.1594/PANGAEA.846871 |
op_coverage |
LATITUDE: -63.000000 * LONGITUDE: -20.000000 |
long_lat |
ENVELOPE(-20.000000,-20.000000,-63.000000,-63.000000) |
genre |
Antarc* Antarctic Antarctica Sea ice South Atlantic Ocean Weddell Sea |
genre_facet |
Antarc* Antarctic Antarctica Sea ice South Atlantic Ocean Weddell Sea |
op_source |
Supplement to: Jerosch, Kerstin; Kuhn, Gerhard; Krajnik, Ingo; Scharf, Frauke Katharina; Dorschel, Boris (2015): A geomorphological seabed classification for the Weddell Sea, Antarctica. Marine Geophysical Research, https://doi.org/10.1007/s11001-015-9256-x |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.846871 https://doi.org/10.1594/PANGAEA.846871 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.84687110.1007/s11001-015-9256-x |
_version_ |
1810488803080536064 |