Temperatures in subarctic lakes on the Stordalen Mire, Abisko, Northern Sweden

Patrick Crill, Martin Wik, Joachim Jansen

Water temperature measurements in three small post-glacial subarctic lakes (Inre Harrsjön, Mellersta Harrsjön, Villasjön) surrounding the Stordalen Mire, 9 km east of Abisko, south of Lake Torneträsk, in northern Sweden. The measurements are made with intercalibrated datalogger strings at multiple depths.

This is a unique multiyear record of lake temperatures in the zone of discontinuous permafrost made with internally consistent sensors. The lake temperature data from the rapidly changing arctic will be of use to biogeochemists, limnologists, climatologists and earth systems scientists.

Citation

Patrick Crill, Martin Wik, Joachim Jansen (2019) Temperatures in subarctic lakes on the Stordalen Mire, Abisko, Northern Sweden. Dataset version 2. Bolin Centre Database. https://doi.org/10.17043/stordalen-lake-temperatures-2

References

Wik M, Crill PM, Varner RK, Bastviken D. (2013). Multiyear measurements of ebullitive methane flux from three subarctic lakes. Journal of Geophysical Research: Biogeosciences, 118, 1307⁠ – ⁠1321. https://doi.org/10.1002/jgrg.20103

Jansen J, Thornton BF, Jammet MM, Wik M, Cortés A, Friborg T, MacIntyre S, Crill PM. (2019). Climate‐sensitive controls on large spring emissions of CH₄ and CO₂ from northern lakes. Journal of Geophysical Research: Biogeosciences, 124, https://doi.org/10.1029/2019JG005094

Data description

Water temperature measurements are made with intercalibrated datalogger strings at different depths in three post-glacial lakes. Data are recorded at intervals between 5 and 60 minutes. Usually 5 minute recording intervals were used in summer and 15 minute intervals in winter. Data coverage (depth, time, sampling intervals) vary over time and between the lakes. Intercalibrated HOBO V2 dataloggers are used. The upper sensors (at 0.1 to 1.0 m water depth) were typically frozen in the ice in winter.

The data are provided in semicolon-separated values (csv) files, each covering a summer or a winter season. Column headers denote the lake and the data type (e.g. 'IH_1.0 m'):

Lake identifiers

• Inre Harrsjön ('IH')
• Mellersta Harrsjön ('MH')
• Villasjön ('VS')

Data type identifiers

• Time, UTC+2 ('_Time'),
• Day of year ('_DOY') (files 090611-100602 only)
• Temperature in °C at depth below the water or ice surface ('_0.1 m')

A README file and supporting site information are provided as pdf files.

Comments

Version history

Version 2

Data record is extended and is now available for the period from 2009-06-11 to 2019-06-06.

Version 1

Initial release. Data for the period from 2009-06-11 to 2015-06-20.