[{"title":"Bathymetry of Lake Tarfala, northern Sweden","summary":"The bathymetry of Lake Tarfala, located in a pro-glacial high alpine environment in the Kebnekaise mountains, northern Sweden, was mapped in September 2016. The mapping was made with an autonomous surface vessel, \u201cANKA\u201d, designed to map shallow, uncharted waters. The survey had two objectives: (i) to acquire a modern bathymetric dataset of Lake Tarfala that can serve as a reference for future investigations of the lake dynamics. (ii) to test ANKA\u2019s robustness, performance and endurance in a subpolar environment. The dataset includes a comparison with data from an earlier survey conducted in 1959.","citations":"Kirchner, N., Noormets, R., Kuttenkeuler, J., Strandell Erstorp, E., Schytt Holmlund, E., Rosqvist, G., Holmlund, P., Wennbom, M., Karlin, T. (2019): High-resolution bathymetric mapping reveals subaqueous glacial landforms in the Arctic alpine lake Tarfala, Sweden. Journal of Quaternary Science (in revision, April 2019)","comments":"The ANKA dataset, containing more that 38000 depth-soundings, replaces the previously best-available bathymetric dataset of Lake Tarfala, derived from 257 depth-soundings conducted in 1959 and published in Larje and Nyberger (1960). A comparison of the two datasets shows that the map constructed from the 1960 data is surprisingly accurate despite it lacks exact GPS positioning, but that it was too coarse to reveal the glacial landforms at the bottom of the Lake which, however, become clearly visible in the high-resolution bathymetric data.\r\nLiterature reference:\r\nLarje, R., Nyberger, L. (1960): Kartering av bottentopografien i Tarfalasj\u00f6n (Mapping of bottom topography in Lake Tarfala). Naturgeografiska proseminariet, Stockholms H\u00f6gskola.\r\nThe data files in Dataset Version 2.0 are commented in slightly more detail than in Version 1.0.\r\nVideo from mapping campaign ","category":"Lacustrine","subcategory":"Bathymetry","keywords":"Autonomous; Bathymetry; Lake Tarfala; Glacial landforms; Glacial lake","scientist":"Nina Kirchner, Jakob Kuttenkeuler, Riko Noormets, Elias Strandell Erstorp ","firstname":"Nina","lastname":"Kirchner","address":"Department of Physical Geography, Stockholm University","postalcode":"SE-106 91","city":"Stockholm","province":"","country":"Sweden","parameters":"Earth science > Terrestrial hydrosphere > Surface water > Lakes","location":"Continent > Europe > Northern Europe > Scandinavia > Sweden","progress":"Completed","language":"English","project":"Autonomous bathymetric mapping of Lake Tarfala, Sweden","publisher":"Bolin Centre Database","version":"2.0","constrains":"None, but please cite Kirchner et al. (2019)","access":"Free"}]