Lag influences of winter circulation conditions in the tropical western Pacific on South Asian summer monsoon

摘要

By means of monthly mean NCEP/NCAR data analyses, this note investigates the lag influences of winter circulation conditions in the tropical western Pacific on South Asian summer monsoon through the methods of com - Posite, correlation and statistical confident test. The results Indicate clearly that winter climate variations in the equator - Rial western Pacific would produce significant influences on The following South Asian summer monsoon, and with the Lapse of time the lag influences show clearly moving north - Ward and extending westward features.