Abrupt Enhancement of Convective Activity and Low-Level Westerly Burst during the Onset Phase of the 1986-87 El Niño

摘要

This note demonstrates the observational evidence of abrupt enhancement of convective activities and simultaneous low-level westerly bursts which occurred in the equatorial western Pacific in November of 1986. These abrupt changes were followed by the eastward movement of the convective systems and low-level westerlies to the east of the dateline resulting in the development of the 1986-87 El Niño.