Table 3. Verification of DJF mean index variables (GMT and AMO) and monthly SST variables (Niño 1+2, 3, 3.4, 4 and ΔSST Pacific), cf. Table 1.

Variable	r (1871–2000)	CRPSS (1871–2000)	r (1871–1919)	CRPSS (1871–1919)
GMT	0.79	0.34	0.20	0.33
AMO	0.55	0.13	0.09	0.28
Nino 1+2	0.19	−0.19	0.18	−0.21
Nino 3	0.44	0.10	0.40	0.15
Nino 3.4	0.55	0.23	0.51	0.34
Nino 4	0.59	0.27	0.44	0.37
ΔSST Pacific	0.10	−0.06	0.13	−0.06
	coh 2.5 yr (1871–2000)	coh 5 yr (1871–2000)	coh 10 yr (1871–2000)	CE (1871–1919)
GMT	0.58	0.41	0.66	0.42
AMO	0.17	0.52	0.37	−0.11
Nino 1+2	0.60	0.78	0.58	−3.09
Nino 3	0.75	0.88	0.78	−1.89
Nino 3.4	0.75	0.88	0.87	−0.93
Nino 4	0.79	0.87	0.82	−0.92
ΔSST Pacific	0.31	0.77	0.54	−3.19