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

Here we present a comprehensive dataset of glacial geomorphological features covering an area of 65 000 km 2 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....

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Bibliographic Details
Published in:Earth System Science Data
Main Authors: I. Szuman, J. Z. Kalita, M. W. Ewertowski, C. D. Clark, S. J. Livingstone, L. Kasprzak
Format: Article in Journal/Newspaper
Language:English
Published: Copernicus Publications 2021
Subjects:
Online Access:https://doi.org/10.5194/essd-13-4635-2021
https://doaj.org/article/5781cea71b5f443296cf45df3675c3fd
Description
Summary:Here we present a comprehensive dataset of glacial geomorphological features covering an area of 65 000 km 2 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 https://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 , through the Last Glacial Maximum, 25–21 ka , and Young Baltic advances, 18–15 ka . The presented data are particularly useful for modellers, geomorphologists, and glaciologists.