Extended Data Fig. 4: InSAR Validation with Ground-Based Subsidence Data.
From: Widespread subsidence and carbon emissions across Southeast Asian peatlands
(a) ALOS frame 6 measurements of industrial plantations which overlap in space and time with measurements on oil palm plantations in Sarawak, Malaysia by Othman et al.8 This is the only area of direct overlap in the region. (b) InSAR data from all other industrial plantations compared to ground-based pole measurements also made on plantations, but at different times and/or places. (c) InSAR data from all non-plantation land uses on peat (excluding pristine peat swamp forest) compared to ground-based pole measurements made on non-plantation land uses in the region, but at different times and/or places. In all panels, where multiple points are shown from a single study, they represent plantation areas established at different times or distinct land uses with distinct subsidence rates. Error bars indicate the standard deviation of the ground-based measurements within these study groups.
