Drought Assessment by a Short-/Long-Term Composited Drought Index in the Upper Huaihe River Basin, China

Table 3

Eigenvalues and eigenvectors of the PCA for short-term/long-term CDI in the upper Huaihe River basin.

CDI	Eigenvalues			Eigenvectors , ,
	S_CDI	2.82	0.8	0.69
0.23						0.30	0.23	0.28	0.28
0.75					−0.21	0.48	−0.62	−0.16
−0.65					−0.42	0.85	−0.08	0.36
L_CDI					3.77	1.24	0.6
									0.61	0.71	0.75	0.81	0.76	0.72	0.76
	0.59	−0.28	0.32	−0.18				−0.48	−0.41	0.53
	0.43	0.27	−0.51	−0.27				0.09	0.08	0.03

Notes: , , are eigenvalues; , , are eigenvectors.