Twentieth Century Winter Changes in Southern Hemisphere Synoptic Weather Modes

Table 3

Periods 𝑇^𝑑𝑟, growth rates 𝜔^𝑑𝑖, and e-folding times 𝜏^𝑑𝑖, of modes for the 1949–68 basic state with 𝑄^𝑑𝐹=1500K and 𝐶^𝑑𝐹=5×10⁻⁴K m⁻¹ and for different 𝐾^𝑑, which have the largest pattern correlations 𝐴_𝑐 with leading ML blocking, NWCB, and ISO modes for the 1949–68 basic state with standard parameterizations. Also shown are the mode numbers.

Class	Mode	𝐾^𝑑	𝑇^𝑑𝑟	𝜔^𝑑𝑖	𝜏^𝑑𝑖	𝐴𝑐	Mode
		m^4 s^−1	(days)	(day^−1)	(days)		standard
ML blocking	58	0	6.016	0.3069	3.258	0.7956	30
ML blocking	15	4.676×10^16	6.188	0.2214	4.517	0.9375	30
NWCB	40	0	9.833	0.3833	2.609	0.7412	43
NWCB	45	4.676×10^16	8.800	0.1096	9.126	0.7049	43
ISO	95	0	53.88	0.1777	5.628	0.8375	57
ISO	56	4.676×10^16	61.41	0.0868	11.52	0.9155	57