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Some aspects of an association between the southern oscillation and indian summer monsoon

Einige Gesichtspunkte über eine Verbindung zwischen der südlichen Oszillation und dem indischen Sommermonsun

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Summary

A significant correlation between the seasonal rainfall over India and the southern oscillation index (SOI) illustrated by Walker is examined on the basis of a long series of 100 year data. The relationship is discussed in the light of recent applications of global interactions in the regional climatic change models through feedback processes. The years of large scale deficient/excess rainfall over India during June–August season are examined in relation to the concurrent SOI regimes. This aspect may be of importance in examining the large scale circulation features in association with severe droughts/floods over India.

Zusammenfassung

Eine signifikante Korrelation zwischen dem jahreszeitlichen Regen in Indien und dem Index der südlichen Oszillation (SOI) nach Walker wird aufgrund einer hundertjährigen Reihe von Beobachtungsdaten untersucht. Die Beziehung wird im Hinblick auf neue Anwendungen globaler Wechselwirkungen durch Rückkoppelungsprozesse in regionalen Klimaschwankungsmodellen besprochen. Die Jahre mit großräumigem Mangel oder Überschuß an Regen in Indien in der Zeit von Juni bis August wird in Beziehung zum gleichzeitigen SOI-Verlauf untersucht. Diese Gesichtspunkte können bei der Untersuchung großräumiger Zirkulationsmerkmale in Verbindung mit starken Trockenheiten oder Überschwemmungen in Indien von Bedeutung sein.

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Authors and Affiliations

  1. Indian Institute of Tropical Meteorology, 411005, Poona, India

    G. B. Pant & Shri B. Parthasarathy

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  1. G. B. Pant
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  2. Shri B. Parthasarathy
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Pant, G.B., Parthasarathy, S.B. Some aspects of an association between the southern oscillation and indian summer monsoon. Arch. Met. Geoph. Biocl., Ser. B 29, 245–252 (1981). https://doi.org/10.1007/BF02263246

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