Spatiotemporal Changes of Reference Evapotranspiration in Mongolia during 1980–2006

Table 4

Correlation coefficients of RET and related meteorological variables. is the significant level of 0.05, and is the significant level of 0.01.

RET	Wind speed	Relative humidity	Air temperature	Sunshine hour	Precipitation
Annual				0.362
Spring
Summer	0.228		0.879
Autumn	0.152
Winter	0.171			0.224