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Teleconnections between tropical pacific sea surface temperature anomalies and North Carolina precipitation anomalies during El Niño events
Author(s) -
Roswintiarti Orbita,
Niyogi Devdutta S.,
Raman Sethu
Publication year - 1998
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/1998gl900121
Subject(s) - teleconnection , climatology , anomaly (physics) , empirical orthogonal functions , precipitation , sea surface temperature , geology , environmental science , geography , meteorology , el niño southern oscillation , physics , condensed matter physics
Linear teleconnections of El Niño events and precipitation over a regional coastal land mass were analyzed. Two statistical techniques were used. First, the Empirical Orthogonal Function extracted major variances of the monthly tropical Pacific sea surface temperature anomalies and coastal North Carolina precipitation anomalies. Second, the Canonical Correlation Analysis calculated the linear combinations of the anomaly data sets that were highly correlated. The results show that El Niño‐related precipitation anomalies along the North Carolina coast were positive from November to May and negative between June and October consistent with large‐scale studies. Results indicate simple, linear statistical techniques can be effectively adopted to determine teleconnections on a local scale.