A geomorphological seabed classification for the Weddell Sea, Antarctica, with links to ArcGIS project files ...

• Main Authors: Jerosch, Kerstin, Kuhn, Gerhard, Krajnik, Ingo, Scharf, Frauke Katharina, Dorschel, Boris
• Format: Dataset
• Language: English
• Published: PANGAEA 2015
• Subjects: File name; File size; Uniform resource locator/link to file; Marine Geophysics @ AWI AWI_GeoPhy; Paleoenvironmental Reconstructions from Marine Sediments @ AWI AWI_Paleo; Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas SPP1158; Arctic; Antarctic; Weddell Sea; Weddell; Antarc*; Antarctica; Sea ice
• Online Access: https://dx.doi.org/10.1594/pangaea.846871; https://doi.pangaea.de/10.1594/PANGAEA.846871

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, ... : 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 ...