http://bolin.su.se/data/tarfala-kirchner-2023-ice-off-2022-1 Nina Kirchner, Annika Granebeck, Jamie Barnett, Daniella Lillieroth Charalambous Bolin Centre Database 2023 Datafile Lacustrine Observations Lake Tarfala Tarfala Lake ice Lake ice phenology Ice-off Earth science > Cryosphere > Snow/ice > Lake ice Nina Kirchner 2023-05-09T14:13:09+00:00 English 1 The dataset consists of image files (`JPG`) of Lake Tarfala, with the date and time (Swedish daylight saving time, UTC+2) included in each photo. The pictures were acquired using a camera positioned on the mountain flank along Lake Tarfala’s north-eastern shore, at ~67.9° N, 18.6° E, at 1220 m above sea level. The data were collected using a Hunter Orion Trail Camera 4G. The camera elevation is 1.8 m above ground. Each JPG file has a size of ~2.4 MB. The total size of the dataset is ~927 MB. In order to protect personal data in accordance with the EU General Data Protection Regulation (GDPR), small parts of four images have been concealed. During a few short periods, fog, snow and/or rain obscures the view of the lake. The support of our co-workers on the Arctic Avenue activity *Lake thermal and mixing dynamics under changing climate* (J. Weckström, K. Weckström, A. Korhola, and F. Schenk) is gratefully acknowledged.