Tropical cyclone activity in the northwest Pacific in relation to the El Nino/Southern Oscillation phenomenon.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

409 Scopus Citations
View graph of relations

Author(s)

  • J. C L Chan

Detail(s)

Original languageEnglish
Pages (from-to)599-606
Journal / PublicationMonthly Weather Review
Volume113
Issue number4
Publication statusPublished - 1985
Externally publishedYes

Abstract

The interannual variations in tropical cyclone activity in the northwest Pacific (NWPAC) and their relationships with the El Nino/Southern Oscillation (ENSO) phenomenon were studied using the method of spectral analyses. It appears that fluctuations of cyclone activity at the dominant Southern Oscillation frequency may be explained in terms of the change in the horizontal and vertical circulations in the atmosphere during periods of low SOI. The establishment of an anomalous Walker Circulation shifts areas of enhanced or suppressed convection, leading to the observed variations in cyclone activity. -from Author