[{"name":"tarfala-kirchner-2023-ice-off-2021-1","title":"Time lapse imagery of the ice-off event at Lake Tarfala, Kebnekaise Mountains, northern Sweden, summer 2021","summary":"This dataset contains images of Lake Tarfala taken every 2 hours during the period from 1 June to 18 July 2021. During this period, the surface of Lake Tarfala transitions from being ice-covered to ice-free, an event referred to as \"ice-off\".\r\n\r\nThe dataset can be used to observe the ice-off event and to assign a date (or, rather, a time interval) to it. Knowledge of lake ice phenology, i.e. seasonal formation and loss of the lacustrine ice cover, is of importance since the timing of ice-off impacts lake processes such as stratification and vertical mixing.\r\n\r\nThe pictures were acquired using a camera positioned on the mountain flank along Lake Tarfala\u2019s north-eastern shore, at 1220 m above sea level. In total, there are 432 images.","citations":"","comments":"The support of our co-workers on the Arctic Avenue activity *Lake thermal and mixing dynamics under changing climate* (J. Weckstr\u00f6m, K. Weckstr\u00f6m, A. Korhola, and F. Schenk) is gratefully acknowledged.","category":"Lacustrine","subcategory":"Observations","keywords":"Lake Tarfala; Tarfala; Lake ice; Lake ice phenology; Ice-off","scientist":"Nina Kirchner, Annika Granebeck, Daniella Lillieroth Charalambous","firstname":"Nina","lastname":"Kirchner","address":"Department of Physical Geography; Stockholm University","postalcode":"SE-106 91","city":"Stockholm","province":"","country":"Sweden","parameters":"Earth science > Cryosphere > Snow\/ice > Lake ice","location":"Continent > Europe > Northern Europe > Scandinavia > Sweden","progress":"Completed","language":"English","project":"The data were collected as part of a project within the Arctic Avenue Spearhead Research project between Stockholm University and the University of Helsinki, Finland, running between 2019 and 2022. It has contributed to this work through activity Lake thermal and mixing dynamics under changing climate.","publisher":"Bolin Centre Database","version":"1","constrains":"","access":""}]