The test was made on a wooden cell filled with saturated sand and frozen at -20°C. After freezing, the cell was brought to a cold room with an ambient temperature of 5°C.

The water flow was 0.5 cm ³ /h and the temperature was 15°C.

The film was made with using an Infrared camera. While the temperature was not calibrated in this visual representation, temperatures ranges obtained with the IR camera are realistic. The purple and blue tones indicate warm temperatures, while yellow colors indicate warmer temperatures.

The wooden cell represents a physical model of the active layer of permafrost. This protocol allows quantifying the effect of water flow on permafrost degradation.

Ce message est également disponible en : French

Surface water flow on a physical model of permafrost filmed with an Infrared camera by Geocryolab is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License .