It is inspiringto cooperate with Chris and Professor Zhang on Inter-annual variability of the East Asian Jet Stream. The work is published in Climate Dynamics.

Schematics of meridional circulation for the climatological East Asian jet over the upstream of the jet. c is the same as b but over the downstream of the jet. Circula- tions indicate the zonal aver- ages over 100◦–130◦ E for the upstream and over 140◦– 200◦ E for the downstream

Summary schematics of processes responsible for wintertime interannual variabilities of the East Asian jet. a An intensification of the jet is triggered by convections over the ’Bay of Bengal (BOB)– South China Sea (SCS) and Pacific Warm Pool over the upstream and maintained by feedback with Pacific Subtropical oceanfront through eddies over the downstream. b A poleward shift of the jet is mainly driven by eddies and is also coupled to the North Pacific subtropi- cal oceanic front. Black contours denote zonal-wind anomalies at the 200 hPa level associated with corresponding jet indices, as in Fig. 3a, b. Clouds and red circulations over the equatorial Indian Ocean and Western Pacific denote anomalous precipitations as well as two local MOCs detected in Fig. 5. Black arrows and shadings in the upper troposphere denote anomalous synoptic eddy activities (E-vectors and their divergence), as in Figs. 7 and 10. Color shadings at the surface are responses in wintertime oceanic fronts (meridional SST gradient)