Preprints
https://doi.org/10.5194/essd-2021-59
https://doi.org/10.5194/essd-2021-59

  07 May 2021

07 May 2021

Review status: this preprint is currently under review for the journal ESSD.

GIS dataset: geomorphological record of terrestrial-terminating ice streams, southern sector of Baltic Ice Stream Complex, last Scandinavian Ice Sheet, Poland

Izabela Szuman1, Jakub Z. Kalita1, Marek W. Ewertowski1, Chris D. Clark2, Stephen J. Livingstone2, and Leszek Kasprzak1 Izabela Szuman et al.
  • 1Faculty of Geographical and Geological Sciences, Adam Mickiewicz University, Poznań, 61-680, Poland
  • 2Department of Geography, University of Sheffield, Sheffield, S3 7ND, UK

Abstract. Here we present a comprehensive dataset of glacial geomorphological features covering an area of 65 000 km2 in central west Poland, located along the southern sector of the last Scandinavian Ice Sheet, within the limits of the Baltic Ice Stream Complex. The GIS dataset is based on mapping from a 0.4 m high-resolution Digital Elevation Model derived from airborne Light Detection and Ranging data. Ten landform types have been mapped: Mega-Scale Glacial Lineations, drumlins, marginal features (moraine chains, abrupt margins, edges of ice-contact fans), ribbed moraines, tunnel valleys, eskers, geometrical ridge networks and hill-hole pairs. The map comprises 5461 individual landforms or landform parts, which are available as vector layers in GeoPackage format at http://doi.org/10.5281/zenodo.4570570 (Szuman et al., 2021a). These features constitute a valuable data source for reconstructing and modelling the last Scandinavian Ice Sheet extent and dynamics from the Middle Weichselian Scandinavian Ice Sheet advance, 50–30 ka BP, through the Last Glacial Maximum, 25–21 ka BP and Young Baltic Advances, 18–15 ka BP. The presented data are particularly useful for modellers, geomorphologists and glaciologists.

Izabela Szuman et al.

Status: open (until 17 Jul 2021)

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  • RC1: 'Comment on essd-2021-59', Clare Boston, 03 Jun 2021 reply

Izabela Szuman et al.

Data sets

LiDAR-based glacial geomorphological dataset, southern sector of Baltic Ice Stream Complex, last Scandinavian Ice Sheet, Poland Izabela Szuman, Jakub Z. Kalita, Marek W. Ewertowski, Chris D. Clark, Stephen J. Livingstone, Leszek Kasprzak http://doi.org/10.5281/zenodo.4541234

Izabela Szuman et al.

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Short summary
The Baltic Ice Stream Complex was the most prominent ice stream of the last Scandinavian Ice Sheet controlling ice sheet drainage and collapse. Our mapping effort, based on a LiDAR DEM, resulted in dataset containing 5461 landforms over an area of 65 000 km2, that allow for reconstruction of the last Scandinavian Ice Sheet extent and dynamics from the Middle Weichselian ice sheet advance, 50–30 ka BP, through the Last Glacial Maximum, 25–21 ka BP and Young Baltic Advances, 18–15 ka BP.