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A first continuous three-year temperature record from the dimictic arctic-alpine Lake Tarfala, northern Sweden

Kirchner, Nina and Kuttenkeuler, Jakob and Rosqvist, Gunhild and Hancke, Marnie and Granebeck, Annika and Weckstrom, Jan and Schenk, Frederik and Korhola, Atte and Eriksson, Pia (2021). A first continuous three-year temperature record from the dimictic arctic-alpine Lake Tarfala, northern Sweden. Arctic, Antarctic, and Alpine Research. 53 , 69-79
[Research article]

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Abstract

Arctic lakes are exposed to warming during increasingly longer ice-free periods and, if located in glaciated areas, to increased inflow of meltwater and sediments. However, direct monitoring of how such lakes respond to changing environmental conditions is challenging not only because of their remoteness but also because of the scarcity of present and previously observed lake states. At the glacier-proximal Lake Tarfala in the Kebnekaise Mountains, northern Sweden, temperatures throughout the water column at its deepest part (50 m) were acquired between 2016 and 2019. This three-year record shows that Lake Tarfala is dimictic and is overturning during spring and fall, respectively. Timing, duration, and intensity of mixing processes, as well as of summer and winter stratification, vary between years. Glacial meltwater may play an important role regarding not only mixing processes but also cooling of the lake. Attribution of external environmental factors to (changes in) lake mixing processes and thermal states remains challenging owing to for example, timing of ice-on and ice-off but also reflection and absorption of light, both known to play a decisive role for lake mixing processes, are not (yet) monitored in situ at Lake Tarfala.

Authors/Creators:Kirchner, Nina and Kuttenkeuler, Jakob and Rosqvist, Gunhild and Hancke, Marnie and Granebeck, Annika and Weckstrom, Jan and Schenk, Frederik and Korhola, Atte and Eriksson, Pia
Title:A first continuous three-year temperature record from the dimictic arctic-alpine Lake Tarfala, northern Sweden
Series Name/Journal:Arctic, Antarctic, and Alpine Research
Year of publishing :2021
Volume:53
Page range:69-79
Number of Pages:11
Publisher:TAYLOR AND FRANCIS LTD
ISSN:1523-0430
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 105 Earth and Related Environmental Sciences > Climate Research
(A) Swedish standard research categories 2011 > 1 Natural sciences > 105 Earth and Related Environmental Sciences > Physical Geography
Keywords:Lake, vertical mixing, Arctic, Tarfala, water temperature
URN:NBN:urn:nbn:se:slu:epsilon-p-111589
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-111589
Additional ID:
Type of IDID
DOI10.1080/15230430.2021.1886577
Web of Science (WoS)000627321700001
ID Code:23371
Faculty:University administration
Deposited By: SLUpub Connector
Deposited On:29 Apr 2021 11:21
Metadata Last Modified:29 Apr 2021 11:31

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