Fig. 13
Quantitative deterioration assessment of the Baodingshan Grotto based on weathering index represented by the chemical composition and the hyperspectral identification of deterioration distribution. There is a positive correlation between the deterioration index (DI) and the deterioration degree, which indicates that the middle part of this rock carvings is relatively less deteriorated (OS: original state, SID: surface integrity damage, SMC: surface morphological change, SCC: surface color change, BC: biological colonization)