New concept of permafrost degradation monitoring based on photonics technologies (Bellsund, Svalbard)

We would like to invite you to read the latest article, whose lead authors are Dr hab, Piotr Zagórski, Prof. UMCS and Prof. dr hab. Radosław Dobrowolski (Department of Geomorphology and Palaeogeography UMCS). The authors also include two of our doctoral students - M.Sc. Kamil Kultys, and M.Sc. Kamil Misztal. The article has been published in the journal Land Degradation & Development and is one of the results of the research project financed by European funds under the European Regional Development Fund and the National Centre for Research and Development, "Autonomous system of fibre-optic quasi distributed temperature sensor for ground temperature measurement (SPILOD) No. POIR.04.01.01-00-0031/19-00":

Piotr ZagórskiRadosław Dobrowolski, Adam Paździor, Tomasz Nasiłowski, Kamil KultysKamil Misztal, Paweł Piątek, Daniel Lis, Cezary Polakowski, Mateusz Łukowski, Wojciech Berus, Paweł Mergo, Andrzej Bieganowski, 2023. New concept of permafrost degradation monitoring based on photonics technologies: Case study from Calypsostranda (Bellsund, Svalbard). Land Degradation & Development, 1–12. https://doi.org/10.1002/ldr.4874 

Ground temperature measurements are crucial for a better understanding of changes in the natural environment, especially in the Arctic. Previous measurement systems provided accurate measurements; however, their most significant disadvantage was the relatively low spatial resolution, including in the vertical profile. The aim of this work was to develop and initially validate a new, original temperature measurement system based on the photonic sensing technique of optical frequency-domain reflectometry (OFDR). The system consists of a fibre-optic sensor, an interrogator, and an automatic data acquisition system. Such fibre-optic sensors allow a significant increase in spatial resolution. Data on precise temperature distribution in the ground profile will allow for a detailed determination of the changes in the thickness of the permafrost active layer (PAL) and, as a consequence, a better description of the current state of the permafrost and the layers above it in relation to their progressive degradation. In the longer term, it will make a better prediction of the pace of possible changes in the polar environment and will open up previously unavailable opportunities in the field of climate change monitoring and forecasting.

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    Date of addition
    28 September 2023