Environmental spaces for palsas and peat plateaus are disappearingat a circumpolar scale

1171 Geosciences

This research has been supported by the Academy of Finland (grant nos. 315519, 337552, and 342890).

Used climate data were obtained from WorldClim – Global Climatic Data, available at https://www.worldclim.org/data/v1.4/worldclim14.html and https://www.worldclim.org/data/v1.4/cmip5_30s.htm (WorldClim; Hijmans et al., 2005, 2022a, b). Variables describing the soil properties were calculated from data in SoilGrids – global gridded soil information database (https://files.isric.org/soilgrids; Poggio et al., 2021). Global Multi-resolution Terrain Elevation Data 2010 (GMTED2010; Danielson and Gesch, 2011; https://doi.org/10.5066/F7J38R2N) was used to calculate TWI. Thermokarst dataset (Olefeldt et al., 2016a) can be obtained from https://doi.org/10.3334/ORNLDAAC/1332 (Olefeldt et al., 2016b). The BAWLD database (Olefeldt et al., 2021a) is available at https://doi.org/10.18739/A2C824F9X (Olefeldt et al., 2021b). Hugelius et al. (2020) data are at the Bolin Centre for Climate Research (https://doi.org/10.17043/hugelius-2020-peatland-2; Hugelius et al., 2021). PEATMAP (Xu et al., 2018) data are available at https://doi.org/10.5518/252 (Xu et al., 2017). Treat et al. (2016b) data are available at https://doi.org/10.1594/PANGAEA.863689 (Treat et al., 2016c). The coordinates of the landform observations compiled in this study are available in the Supplement. A list of references used in the compilation is provided in the Supplement. Our predictions of the suitable environments for palsas and peat plateaus are publicly available in raster format in Zenodo: https://doi.org/10.5281/zenodo.7745085 (Könönen et al., 2023).