A repository of measured soil freezing characteristic curves: 1921 to 2021

Abstract. Soil freeze–thaw processes play a fundamental role in the hydrology, geomorphology, ecology, thermodynamics, and soil chemistry of cold regions' landscapes. In understanding these processes, temperature is used as proxy to represent partitioning ice water content via freezing characteristic curve (SFCC). This mathematical construct relates specific for particular soil. SFCCs depend on many factors, including properties (e.g., porosity composition), pore pressure, dissolved salts, (hysteresis in) freezing/thawing point depression, degree saturation, all which can be site-specific time-varying characteristics. have been measured using various methods diverse soils since 1921, but, date, data not broadly compared. part because they had previously compiled single dataset. The dataset presented this publication includes SFCC digitized or received from authors, it both historic modern studies. are stored an open-source repository, R package available facilitate their use. Aggregating has pointed out some gaps, namely that there few studies coarse comparably situ measurements mountainous environments. It hoped (https://doi.org/10.5281/zenodo.5592825; Devoie et al., 2022a) will aid development theory improve approximations modelling activities.