Table 1 Geospatial datasets and their derivatives, explained in the context of implementation in this study.
From: Circumpolar permafrost maps and geohazard indices for near-future infrastructure risk assessments
Data source | Variable description | Used in | Original resolution |
|---|---|---|---|
WorldClim51 | Freezing degree days (FDD), °C-days | MAGT and ALT modelling | 30 arc seconds |
Thawing degree days (TDD), °C-days | MAGT and ALT modelling | 30 arc seconds | |
Precipitation in snow, mm | MAGT and ALT modelling | 30 arc seconds | |
Precipitation in water, mm | MAGT and ALT modelling | 30 arc seconds | |
GMFD, Version 252 | Climate parameters for 2000–2014 | Climate data reanalysis | 0.5 degrees |
USGS DEM55 | Potential incident solar radiation58 MJ cm−2 y−1 | MAGT and ALT modelling | 30 arc seconds |
Slope gradient, ° | Hazard indices (Ia) | 30 arc seconds | |
ESA CCI61 | Water Bodies, % | MAGT modelling | 5 arc seconds |
SoilGrids1km59 | Soil organic carbon content, g kg−1 | MAGT and ALT modelling | 30 arc seconds |
Coarse sediment content, % | Hazard indices (Ir, Ia) | 30 arc seconds | |
Fine sediment content, % | Hazard indices (Ir, Ia) | 30 arc seconds | |
Pelletier et al.76 | Average soil and sediment deposit thickness, m | Hazard indices (Ir) | 30 arc seconds |
ALT model results | Relative increase in ALT, %Δ | Hazard indices (Is, Ia) | 30 arc seconds |
MAGT model results | Near-surface permafrost thaw potential, thaw/no thaw | Hazard indices (Ir) | 30 arc seconds |
Near-surface permafrost stability (3 classes, see Hazard index formulation/Analytical hierarchy process based index) | Hazard indices (Ia) | 30 arc seconds | |
IPA73 | Volumetric ground ice content, % | Hazard indices (Is, Ir and Ia) | 12.5 * 12.5 km |
