Permafrost: How Heat Flow and Rock Porosity Control Its Degradation Rate?

We are pleased to announce that the journal Permafrost and Periglacial Processes has published an article by Prof. Radosław Dobrowolski and Prof. Jerzy Nawrocki:

Dobrowolski R., Nawrocki J., 2024. Weichselian permafrost degradation rate controlled by the heat flow and effective porosity—data from the spring-fed fens' deposits in Poland. Permafrost and Periglacial Processes, 2024, 0(1), 1–13. https://doi.org/10.1002/ppp.2262

This article marks a breakthrough in research on permafrost degradation, focusing on a unique dataset derived from diverse geological sites in Poland. The analyzed deposits of spring-fed fens have proven to be an invaluable source of information on the processes that occurred during the last Weichselian glaciation. The authors identified key factors influencing the rate of permafrost degradation, such as the intensity of heat flow in the Earth's crust and the effective porosity of rocks, which determine the maximum amount of frozen water in the deposits.

The research findings demonstrate that permafrost degradation was not a uniform process but showed significant spatial and temporal variability. Furthermore, strong correlations were identified between the timing of groundwater activation resulting from permafrost degradation and the geological properties of the studied areas. These findings shed new light on environmental processes associated with past climate warming and could also inform contemporary research on climate change and its impacts on the environment.

This publication is not only an excellent example of an interdisciplinary approach in Earth sciences but also a valuable contribution to the global discussion on the impacts of climate change.

Congratulations to the authors, and we encourage everyone to read this inspiring work, which is available in open access!

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    Date of addition
    10 December 2024