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Backpack LiDAR-based digital elevation models from the Perma-X expedition in West Alaska (2022)

Authors
/persons/resource/runge

Runge,  Alexandra
1.4 Remote Sensing, 1.0 Geodesy, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

Kremer,  Luis
External Organizations;

Barth,  Sophia
External Organizations;

Inauen,  Cornelia
External Organizations;

Rettelbach,  Tabea
External Organizations;

Grosse,  Guido
External Organizations;

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Citation

Runge, A., Kremer, L., Barth, S., Inauen, C., Rettelbach, T., Grosse, G. (2024): Backpack LiDAR-based digital elevation models from the Perma-X expedition in West Alaska (2022).
https://doi.org/10.1594/PANGAEA.963283


Cite as: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5029372
Abstract
During the Arctic Land Expedition Perma-X in West Alaska (2022-07-28 -- 2022-08-21), several LiDAR scans were acquired using a backpack laser scanning system (GreenValley LiBackpack DGC50). The surveys were carried out on the Baldwin Peninsula and on the Seward Peninsula. The goal of the campaign was to quantify permafrost landscape change by mapping various permafrost thaw features such as thaw slumps, gullies, and degraded ice wedge polygons. These features are predominantly less than 1 km2 in size. The 3D point cloud data from the LiDAR backpack were used to generate Digital Elevation Models (DEMs) of the thaw features. The point cloud processing workflow for these DEMs included point cloud georeferencing, filtering, and ground classification. In total, 15 DEMs were derived at different locations during this campaign. In addition to change detection, the accurate field data are suitable for model parameterization and validation from Earth observation data.