(Table 4) Erosion since slump initiation of retrogressive thaw slumps on Hers...

Estimated based on the slope angle of stabilised slump floors and the estimated position of the bottom of the massive ice layer.该估算值基于稳定塌落床面（stabilised slump floors）的坡角与厚冰层（massive ice layer）底部的估算位置计算得出。