Brief communication: Testing a portable Bullard-type temperature lance confirms highly spatially heterogeneous sediment temperatures under shallow bodies of water in the Arctic

Miesner, Frederieke; Cable, William Lambert; Overduin, Pier Paul; Boike, Julia

doi:https://doi.org/10.5194/tc-18-2603-2024

Articles | Volume 18, issue 5

https://doi.org/10.5194/tc-18-2603-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

Emerging geophysical methods for permafrost investigations:...

https://doi.org/10.5194/tc-18-2603-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 18, issue 5

Brief communication

|

29 May 2024

Brief communication |

| 29 May 2024

Brief communication: Testing a portable Bullard-type temperature lance confirms highly spatially heterogeneous sediment temperatures under shallow bodies of water in the Arctic

Frederieke Miesner, William Lambert Cable, Pier Paul Overduin, and Julia Boike

Data sets

Physical oceanography (CTD) measurements in Brandallaguna in March 2021 F. Miesner et al. https://doi.org/10.1594/PANGAEA.951082

Temperature measurements at Brandallaguna in March 2021 F. Miesner et al. https://doi.org/10.1594/PANGAEA.950782

Temperature measurements at three subaquatic sites in the Mackenzie Delta, Northwest Territories, Canada F. Miesner et al. https://doi.org/10.1594/PANGAEA.949290

CTD measurements acquired in a small lake ("Lake 3") between the villages of Tuktoyaktuk and Inuvik, Canada F. Miesner et al. https://doi.org/10.1594/PANGAEA.949253

CTD measurements acquired in a former river channel ("Swiss Cheese Lake") in the Mackenzie Delta, Northwest Territories, Canada F. Miesner et al. https://doi.org/10.1594/PANGAEA.949256

CTD measurements acquired in the region of Tuktoyaktuk Island, Northwest Territories, Canada F. Miesner et al. https://doi.org/10.1594/PANGAEA.949258

Short summary

The temperature in the sediment below Arctic lakes determines the stability of the permafrost and microbial activity. However, measurements are scarce because of the remoteness. We present a robust and portable device to fill this gap. Test campaigns have demonstrated its utility in a range of environments during winter and summer. The measured temperatures show a great variability within and across locations. The data can be used to validate models and estimate potential emissions.