Preprints
https://doi.org/10.5194/egusphere-2022-1184
https://doi.org/10.5194/egusphere-2022-1184
18 Jan 2023
 | 18 Jan 2023

Brief communication: Comparison of thermistor and digital temperature sensor performance in a mountain permafrost borehole

Lars Widmer, Marcia Phillips, and Chasper Buchli

Abstract. Monitoring mountain permafrost temperatures in boreholes is challenging regarding the resilience and long-term temperature stability of the sensor systems. Whilst resistance thermistors boast a high accuracy, they are prone to drift when exposed to moisture, pressure, or cable strain. Supplementing or replacing them with digital bandgap temperature sensors requires careful analysis of the sensor performance. We carry out a first comparison of two temperature sensor systems under field conditions in mountain permafrost, at 15 identical depths in one borehole. Temperature values, sensing delays and noise levels are compared and discussed. 

Lars Widmer et al.

Status: final response (author comments only)

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on egusphere-2022-1184', Philippe Schoeneich, 17 Mar 2023
    • AC1: 'Reply on RC1', Lars Widmer, 24 May 2023
  • RC2: 'Comment on egusphere-2022-1184', Ivar-Kristian Waarum, 19 Mar 2023
    • AC2: 'Reply on RC2', Lars Widmer, 24 May 2023

Lars Widmer et al.

Lars Widmer et al.

Viewed

Total article views: 332 (including HTML, PDF, and XML)
HTML PDF XML Total BibTeX EndNote
224 96 12 332 2 2
  • HTML: 224
  • PDF: 96
  • XML: 12
  • Total: 332
  • BibTeX: 2
  • EndNote: 2
Views and downloads (calculated since 18 Jan 2023)
Cumulative views and downloads (calculated since 18 Jan 2023)

Viewed (geographical distribution)

Total article views: 339 (including HTML, PDF, and XML) Thereof 339 with geography defined and 0 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 
Latest update: 02 Jun 2023
Download
Short summary
Long-term temperature measurements are challenging to carry out in mountain permafrost boreholes. The widely used resistance thermistors are highly accurate but prone to drift when they are exposed to moisture or the cable connecting them is stretched. We explore the possibility of supplementing them with digital sensors and analyse the performance of both systems at 15 depths in one mountain permafrost borehole.