south-easterly
2.FGGE IB such as u - v components, temperature, moisture, divergence,vorticity and vertical motion etc. ,a detailed analysis on the development and maintainance of a strong monsoon trough-ITCZ in South Asia was made in this paper. The effect of the upper level easterly jet stream on the depression formation and the interaction between the weather systems of two monsoon regimes in South Asia and Southeast Asia were also discussed.
4.The former mainly appears in April accompanied with typical transient circulation pattern from winter to summer, strong subtropical westerly jet streams prevailing in the high level and steady stratified atmosphere while the moisture is mainly originated from the westerly transport over Arabian Sea and the easterly transport at the south side of WPSH;
