Bathymetric model beneath Nivl and Lazarev ice shelves, and across Astrid Ridge embedded within IBCSOV2 ...

• Main Author: Eisermann, Hannes
• Format: Dataset
• Language: unknown
• Published: PANGAEA 2024
• Subjects: Antarctica; Bathymetry; Dronning Maud Land; gravity inversion; Lazarev Ice Shelf; Nivl Ice Shelf; water column; LONGITUDE; LATITUDE; Coordinate, x, relative; Coordinate, y, relative; Bed elevation; Model; Antarc*; Antarctic; Ice Shelf; Ice Shelves; Riiser-Larsen Sea
• Online Access: https://dx.doi.org/10.1594/pangaea.963737; https://doi.pangaea.de/10.1594/PANGAEA.963737

Attached data comprise a bathymetric model of central Dronning Maud Land, including the seabed beneath the Nivl Ice Shelf and the Lazarev Ice Shelf, as well as the offshore Astrid Ridge and adjacent parts of the Riiser-Larsen Sea. Here, this model is embedded within the larger Antarctic-wide bathymetric compilation IBCSOV2 (Dorschel et al., 2022). This is an addition to the stand-alone bathymetric model here: https://doi.org/10.1594/PANGAEA.961492. The embedded model gives seabed depths relative to WGS84 at a resolution of 2.5 km. It is generated by complementing existing topographic data sets - such as seismic data, ice penetrating radar data, and shipborne hydroacoustic data - with the inversion of airborne gravity data towards bathymetry. The airborne gravity data used for the inversion consist of data acquired during aerogeophysical campaigns VISA from the early 2000s and WEGAS from the austral summer of 2009/2010. When citing this model, please also cite the associated manuscript: Eisermann, H., Eagles, ... : Additional source data sets from National Oceanic and Atmospheric Administration (NOAA) database:Survey ID InstituteRSA76 Lamont-Doherty Earth ObservatoryANTAC8B Japan Oceanographic Data Center ...