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(a). t 0 − 48 h. L. 1500 km. 1500 km. (b). t 0. L. AWB. 1500 km. 1500 km. Key. upper -tropospheric jet anticyclonic wave breaking PV contour on the 350 K isentropic surface 300–200-hPa layer-averaged irrotational wind. precipitable water 500-hPa ascent. AWB. (a). t 0 − 96 h.
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(a) t0 − 48 h L 1500 km 1500 km (b) t0 L AWB 1500 km 1500 km Key upper-tropospheric jet anticyclonic wave breaking PV contour on the 350 K isentropic surface 300–200-hPa layer-averaged irrotational wind precipitable water 500-hPa ascent AWB
(a) t0 − 96 h L 1500 km 1500 km (b) t0 − 48 h L AWB 1500 km 1500 km (c) Key t0 upper-tropospheric jet anticyclonic wave breaking PV contour on the 350 K isentropic surface 300–200-hPa layer-averaged irrotational wind precipitable water 500-hPa ascent AWB AWB 1500 km 1500 km
(a) t0 − 96 h L AWB 1500 km 1500 km (b) t0 − 48 h L AWB L 1500 km 1500 km (c) Key t0 upper-tropospheric jet anticyclonic wave breaking PV contour on the 350 K isentropic surface 300–200-hPa layer-averaged irrotational wind precipitable water 500-hPa ascent L AWB 1500 km 1500 km
(a) t0 − 96 h H 1500 km 1500 km (b) t0 − 48 h H 1500 km 1500 km (c) Key t0 upper-tropospheric jet PV filament PV contour on the 350 K isentropic surface 300–200-hPa layer-averaged irrotational wind upper-tropospheric subtropical anticyclone precipitable water 500-hPa ascent H 1500 km 1500 km H
(a) t0 − 96 h H 1500 km 1500 km (b) t0 − 48 h H 1500 km 1500 km (c) Key t0 upper-tropospheric jet PV debris PV contour on the 350 K isentropic surface 300–200-hPa layer-averaged irrotational wind upper-tropospheric subtropical anticyclone precipitable water 500-hPa ascent H 1500 km 1500 km H
(a) Strong TTN = 34 14.71% 2.94% 20.59% (5) (1) (7) 5.88% (2) 17.65% (6) 38.24% (13) 1.79% (1) (b) Weak TTN = 56 10.71% 16.07% (6) (9) 7.14% (4) 33.93% (19) 30.36% (17) 6.67% (1) (c) Trough induced N = 15 20.00% (3) 73.33% (11) Midlatitude Trough Cutoff PV Streamer Subtropical Disturbance PV Debris Unclassifiable