Fig. 2

Visualisation of the distribution of RTS-absent digitisations in the ARTS data set. The RTS absent data is relatively homogeneously sampled across the Arctic permafrost regions compared with the RTS-present data.

Visualisation of the distribution of RTS-absent digitisations in the ARTS data set. The RTS absent data is relatively homogeneously sampled across the Arctic permafrost regions compared with the RTS-present data.