Scientific Reports

Table 1 The relationship between three indexes (LSI, NDVI, area) and the cooling intensity of UGV.

From: Strong contributions of local background climate to the cooling effect of urban green vegetation

City	Tree-covered UGV (Tc-UGV)			Grass-covered UGV (Gc-UGV)
City	LSI	NDVI	Area	LSI	NDVI	Area
Beijing	0.234^**	0.378^**	0.473^**	0.157^**	0.377^**	0.381^**
Tianjin	0.282^**	0.258^**	0.417^**	0.114^*	0.448^**	0.436^**
Tangshan	0.160^**	0.248^**	0.346^**	0.282^**	0.446^**	0.540^**
Xi’ an	0.204^**	0.308^**	0.413^**	0.135^**	0.396^**	0.328^**
Rome	0.207^**	0.508 ^**	0.526^**	−0.164^**	0.605 ^**	0.173^**
Florence	0.226^**	0.388 ^**	0.527^**	0.064	0.151	0.248^**
Lisbon	0.095	0.467 ^**	0.562^**	−0.082	0.328^**	0.377^**
Milan	0.145^**	0.312 ^**	0.308^**	0.017	0.608 ^**	0.468^*

*Correlation is significant at the 0.05 level (2-tailed).
**Correlation is significant at the 0.01 level (2-tailed).

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