Abstract
Abstract Variations in the mid-troposphere circulation associated with the Southern Oscillation (SO) are investigated and documented using mean monthly 700 mb height data for the period 1951–79. The SO was defined by a Southern Oscillation Index (SOI) consisting of the difference in normalized mean monthly sea-level pressures at Tahiti and Darwin. Results for all four seasons are presented in the form of lagged, as well as contemporaneous, correlations and composites of height anomalies obtained separately for high and low SOI values. Different SO teleconnection patterns are observed for each season. Strongest SO signals appear in the winter with SOI leading the height field by one to two seasons. The time lead may he useful in prognostic applications. The correlation in the summer is negligible. The winter teleconnection pattern over the North Pacific-North America-North Atlantic sector is similar to that shown by Bjerknes and others. Patterns for other seasons are also presented. The statistical signifi...
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.