Terra Nova Bay (Ross Sea, Antarctica), characterized by a moltitude of ice tongues flowing from land to sea, represents an ideal study site for understanding the complex interaction between relative sea level variations and ice sheet dynamics during the Holocene. The DISGELI project, thanks to the combination of innovative technology and traditional methods for geomorphologic and stratigraphic analysis, aims to: i) reconstruct the local variations of the East Antarctic Ice Sheet after the Last Glacial Maximum; ii) provide a time constrain for the deglaciation processes along the coast; iii) reconstruct, with unprecedent detail, the relative sea level variations during Holocene in the Drygalski basin. The morpho-bathymetric and topographic data obtained through this study will be integrated using digital terrain models based on the analyses of key areas onland, where palaeo-coastlines and sea-level markers have been identified.

Terra Nova Bay (Ross Sea, Antarctica), characterized by a moltitude of ice tongues flowing from land to sea, represents an ideal study site for understanding the complex interaction between relative sea level variations and ice sheet dynamics during the Holocene. The DISGELI project, thanks to the combination of innovative technology and traditional methods for geomorphologic and stratigraphic analysis, aims to: i) reconstruct the local variations of the East Antarctic Ice Sheet after the Last Glacial Maximum; ii) provide a time constrain for the deglaciation processes along the coast; iii) reconstruct, with unprecedent detail, the relative sea level variations during Holocene in the Drygalski basin. The morpho-bathymetric and topographic data obtained through this study will be integrated using digital terrain models based on the analyses of key areas onland, where palaeo-coastlines and sea-level markers have been identified.

The raw SeaSpy magnetometer data presented here were collected in the Southern Ocean (SO) as part of the ISOBatA PNRA project during the XXXVII and XXXVIII Italian Antarctic expeditions on board the icebreaker Laura Bassi. The ISOBatA project (Italian Southern Ocean Bathymetry from consistent exploitation of opportunistic seafloor datasets in the Antarctic region and surrounding areas) aimed to improve the understanding of the Southern Ocean through a novel approach that systematically integrates the collection of bathymetric and magnetometric data during the Laura Bassi voyages in poorly charted regions between the Macquarie Triple Junction – MTJ and the Emerald Fracture Zone n-EFZ. This dataset spans two field campaigns (2021-2022 and 2023) collected through optimized navigation strategies, including reducing vessel speed during transits and following pre-planned corridors to enhance data quality and spatial coverage. The project was a collaboration between OGS (PI D. Accettella), UniMIB (A. Savini), IGAG-CNR (M. Cuffaro) and INGV (F. Muccini). The work was supported by the Programma Nazionale di Ricerca in Antartide - PNRA and benefited from the joint efforts of the Laura Bassi research teams on board. Keywords: Southern Ocean, Bathymetry, ISOBatA, Laura Bassi, Antarctica, IBCSO.

This dataset reports the height observations of the Italian stake farm at the Concordia Station, Antarctica. The stake farm consists of 13 stakes, separated from each other by 10 m, arranged in a cross shape structure, located approximately 800m southwest of the Station and sampled on monthly basis or so.

We present here the Multichannel Seismic metadata collected in 2022 by the PNRA19_00022 COLLAPS project "Cook glacier-Ocean system, sea LeveL and Antarctic Past Stability" Principal Investigator: L. De Santis OGS ldesantis@ogs.it The data set consist of ca. 300 km of multichannel seismic profiles collected with the R/V L. Bassi employing 2 x 210 cu.in. GI Gun and a 1500 m long digital streamer, 120 channels, intertrace of 12.5 m, shot interval 37.5 m (=circa 18.75 sec, ship speed 4 knots), record length 8 seconds. The data set was processed at OGS. The seismic trackline (and the segy stacked data) can be downloaded from the Antarctic Seismic Data Library System. The stacked seismic data are available after 4 years from the campaign. Keywords: Southern Ocean, Multichanenl Seismic, COLLAPS, Laura Bassi, Antarctica, SDLS.

This dataset includes all the iron meteorites (achondrites) collected during the Italian Antarctic Expeditions since 1991 in Victoria Land and now preserved at the repository of the Museo Nazionale dell’Antartide.

During the XIII Italian Antarctic expedition (1997/98), 5 tephra layers have been sampled within the aim of the project "Concentration of meteorites: identification, collection, study" in northern Victoria Land. The investigated region is within Freyberg Mountains SS 58-60/1 USGS sheet.

This dataset includes all the carbonaceous chondrites CO group collected during the Italian Antarctic Expeditions since 1991 in Victoria Land and now preserved at the repository of the Museo Nazionale dell’Antartide.

This dataset includes all the carbonaceous chondrites CV group collected during the Italian Antarctic Expeditions since 1997 in Victoria Land and now preserved at the repository of the Museo Nazionale dell’Antartide.