Cloud Features of Tibetan Plateau Vortex Category Cloud Cluster over Different Regions along the Eastward-Moving Path in Summer

Table 2

The classification of TPV category cloud clusters based on the phase on cloudtop.

Classification criteria	Range of threshold for TBB on cloudtop and corresponding acreage
Pure ice-phase type	(1) TBB ≤ 233 K; (2) S ≥ 100000 km^2
Ice-water mixed-phase type	(1) 233 K < TBB < 273 K; (2) S ≥ 100000 km^2
	(1) TBB ≤ 233 K; (2) S < 100000 km^2