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Tropical‐extratropical cloudband climatology based on satellite data
Author(s) -
Kuhnel Ivan
Publication year - 1989
Publication title -
international journal of climatology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.58
H-Index - 166
eISSN - 1097-0088
pISSN - 0899-8418
DOI - 10.1002/joc.3370090502
Subject(s) - extratropical cyclone , climatology , anomaly (physics) , northern hemisphere , sea surface temperature , forcing (mathematics) , environmental science , satellite , geology , physics , aerospace engineering , engineering , condensed matter physics
A global tropical‐extratropical cloudband (TECB) climatology, using a clear definition of TECBs, and based on NOAA IR satellite imagery for the period 1979–1983, is presented. It is shown that on a global scale we can distinguish between 14 different TECBs, seven of them in each hemisphere. The cross‐correlations of the TECB frequency anomalies with tropical pressure and sea‐surface temperature anomalies indicate that the activity of these phenomena can respond strongly to tropical forcing from different parts of the world. Whereas only 10 TECBs show a significant response in their activity to the Southern Oscillation, the frequency anomalies of all 14 TECBs correlate significantly with other pressure anomaly indices.