[{"name":"tarfala-kirchner-2023-ice-off-2023-1","title":"Time lapse imagery of the ice-off event at Lake Tarfala, Kebnekaise Mountains, northern Sweden, summer 2023","summary":"This dataset contains images of Lake Tarfala taken every 2 hours during the period from 10 June, 2023 to 24 July, 2023. 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 537 images.","citations":"Kirchner, N., Weckstr\u00f6m, J., Jansen, J., Schenk, F., Barnett, J., Granebeck, A.,  Lepp\u00e4ranta, M., Korhola, A. (2023). Water temperature, mixing and ice phenology in the arctic-alpine lake Darf\u00e1lj\u00e1vri (Lake Tarfala), northern Sweden, Arctic, Antarctic and Alpine Research. [In review].","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 ice; Lake Tarfala; Tarfala; Lake ice; Lake ice phenology; Ice-off","scientist":"Nina Kirchner, Annika Granebeck, Jamie Barnett, Daniella Lillieroth Charalambous, Maja Oscarsson","firstname":"Nina","lastname":"Kirchner","address":"Department of Physical Geography;\r\nStockholm 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, and with support from Tarfala Research Station since 2023.","publisher":"Bolin Centre Database","version":"1","constrains":"","access":""}]