Table 5: Changes in growth rates, Δ 𝜔 𝑑 𝑖 , for leading blocking, NWCB, and ISO modes when basic state is changed from 1949–68 basic state to 1975–94 basic, for different dissipation parameters, 𝐾 𝑑 .

𝐾 𝑑 Basic stateModeBasic stateMode Δ 𝜔 𝑑 𝑖
m4 s−1

2 . 3 3 8 × 1 0 1 6 1949–6830 ML blocking1975–9421 ML blocking−11.2%
01949–6815 ML blocking1975–9411 ML blocking−15.9%
4 . 6 7 6 × 1 0 1 6 1949–6858 ML blocking1975–9455 ML blocking−7.7%
2 . 3 3 8 × 1 0 1 6 1949–6843 NWCB1975–9412 NWCB+24.9%
01949–6840 NWCB1975–94 6 NWCB+27.7%
4 . 6 7 6 × 1 0 1 6 1949–6845 NWCB1975–9419 NWCB+44.1%
2 . 3 3 8 × 1 0 1 6 1949–6857 ISO1975–9435 ISO+28.7%
01949–6895 ISO1975–9475 ISO+29.1%
4 . 6 7 6 × 1 0 1 6 1949–6856 ISO1975–9422 ISO+71.9%