A geomorphological seabed classification for the Weddell Sea, Antarctica
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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ftawi:oai:epic.awi.de:37112 2023-05-15T13:40:26+02:00 A geomorphological seabed classification for the Weddell Sea, Antarctica Jerosch, Kerstin Kuhn, Gerhard Krajnik, Ingo Scharf, Frauke Dorschel, Boris 2016-05-24 application/pdf https://epic.awi.de/id/eprint/37112/ https://epic.awi.de/id/eprint/37112/1/Jerosch_2015.pdf https://hdl.handle.net/10013/epic.45612 https://hdl.handle.net/10013/epic.45612.d001 unknown SPRINGER https://epic.awi.de/id/eprint/37112/1/Jerosch_2015.pdf https://hdl.handle.net/10013/epic.45612.d001 Jerosch, K. orcid:0000-0003-0728-2154 , Kuhn, G. orcid:0000-0001-6069-7485 , Krajnik, I. , Scharf, F. and Dorschel, B. orcid:0000-0002-3495-5927 (2016) A geomorphological seabed classification for the Weddell Sea, Antarctica , Marine Geophysical Researches, 37 (2), pp. 127-141 . doi:10.1007/s11001-015-9256-x <https://doi.org/10.1007/s11001-015-9256-x> , hdl:10013/epic.45612 EPIC3Marine Geophysical Researches, SPRINGER, 37(2), pp. 127-141, ISSN: 0025-3235 Article isiRev 2016 ftawi https://doi.org/10.1007/s11001-015-9256-x 2021-12-24T15:40:09Z 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 and supplied to the data archive PANGAEA. 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. Article in Journal/Newspaper Antarc* Antarctica Weddell Sea Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Weddell Sea Weddell Marine Geophysical Research 37 2 127 141 |
institution |
Open Polar |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
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 and supplied to the data archive PANGAEA. 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 |
Article in Journal/Newspaper |
author |
Jerosch, Kerstin Kuhn, Gerhard Krajnik, Ingo Scharf, Frauke Dorschel, Boris |
spellingShingle |
Jerosch, Kerstin Kuhn, Gerhard Krajnik, Ingo Scharf, Frauke Dorschel, Boris A geomorphological seabed classification for the Weddell Sea, Antarctica |
author_facet |
Jerosch, Kerstin Kuhn, Gerhard Krajnik, Ingo Scharf, Frauke Dorschel, Boris |
author_sort |
Jerosch, Kerstin |
title |
A geomorphological seabed classification for the Weddell Sea, Antarctica |
title_short |
A geomorphological seabed classification for the Weddell Sea, Antarctica |
title_full |
A geomorphological seabed classification for the Weddell Sea, Antarctica |
title_fullStr |
A geomorphological seabed classification for the Weddell Sea, Antarctica |
title_full_unstemmed |
A geomorphological seabed classification for the Weddell Sea, Antarctica |
title_sort |
geomorphological seabed classification for the weddell sea, antarctica |
publisher |
SPRINGER |
publishDate |
2016 |
url |
https://epic.awi.de/id/eprint/37112/ https://epic.awi.de/id/eprint/37112/1/Jerosch_2015.pdf https://hdl.handle.net/10013/epic.45612 https://hdl.handle.net/10013/epic.45612.d001 |
geographic |
Weddell Sea Weddell |
geographic_facet |
Weddell Sea Weddell |
genre |
Antarc* Antarctica Weddell Sea |
genre_facet |
Antarc* Antarctica Weddell Sea |
op_source |
EPIC3Marine Geophysical Researches, SPRINGER, 37(2), pp. 127-141, ISSN: 0025-3235 |
op_relation |
https://epic.awi.de/id/eprint/37112/1/Jerosch_2015.pdf https://hdl.handle.net/10013/epic.45612.d001 Jerosch, K. orcid:0000-0003-0728-2154 , Kuhn, G. orcid:0000-0001-6069-7485 , Krajnik, I. , Scharf, F. and Dorschel, B. orcid:0000-0002-3495-5927 (2016) A geomorphological seabed classification for the Weddell Sea, Antarctica , Marine Geophysical Researches, 37 (2), pp. 127-141 . doi:10.1007/s11001-015-9256-x <https://doi.org/10.1007/s11001-015-9256-x> , hdl:10013/epic.45612 |
op_doi |
https://doi.org/10.1007/s11001-015-9256-x |
container_title |
Marine Geophysical Research |
container_volume |
37 |
container_issue |
2 |
container_start_page |
127 |
op_container_end_page |
141 |
_version_ |
1766134309762105344 |