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Relationship between all-India summer monsoon rainfall and southern oscillation/eastern equatorial Pacific sea surface temperature

  • D. A. Mooley
  • B. Parthasarathy
  • N. A. Sontakke
Article
  • 46 Downloads

Abstract

The interannual variability of all-India summer monsoon (June to September) rainfall and its teleconnections with the southern oscillation index (SOI) and sea surface temperature (SST) anomaly of the eastern equatorial Pacific ocean have been examined for the period 1871–1978 for different seasons (i.e., winter, spring, summer and autumn). The relationship (correlation coefficient) between all-India summer monsoon rainfall andSOI for different seasons is positive and highly significant. Further examination of 10-, 20- and 30-year sliding window lengths’ correlations, brings out the highly consistent and significant character of the relationships. The relationship between all-India monsoon rainfall andSST for different seasons is negative and is significant at 1 % level or above. Drought years are characterised by negative anomalies ofSOI and positive anomalies ofSST and vice versa with flood years. The relationship betweenSOI andSST is negative and significant at 0.1 % level.

The relationships between all-India summer monsoon rainfall,SOI and sst are expected to improve our understanding of the interannual variability of the summer monsoon.

Keywords

All-India rainfall southern oscillation Pacific sea surface temperature sliding correlation 

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References

  1. Angell J K 1981Mon. Weather Rev. 109 230CrossRefGoogle Scholar
  2. Anjaneyulu T S S 1981Mausam 31 551Google Scholar
  3. Bell G J 1977Weather 32 26Google Scholar
  4. Bjerknes J 1969Mon. Weather Rev. 97 163CrossRefGoogle Scholar
  5. Fleer H 1981Bonn. Meteorol. Abh. 26 114Google Scholar
  6. Joseph P V 1981Mausam 32 237Google Scholar
  7. Julian P R and Chervin R M 1978Mon. Weather Rev.,106 1433CrossRefGoogle Scholar
  8. Keshavamurthy R N 1982J. Atmos. Sci. 39 1241CrossRefGoogle Scholar
  9. Khandekar M L 1979Arch. Meteorol. Geophys. Bioklimatol. A28 159CrossRefGoogle Scholar
  10. Mooley D A, Parthasarathy B, Sontakke N A and Munot A A 1981J. Climatol. 1 167CrossRefGoogle Scholar
  11. Mooley D A and Parthasarathy B 1983aVariations of the global water budget. (eds.) A S Perrot, M Baran and R Ratchiffe (Dordrecht: D Riedel) 239–252Google Scholar
  12. Mooley D A and Parthasarathy B 1983bMon. Weather Rev. 11 967–978CrossRefGoogle Scholar
  13. Mooley D A and Parthasarathy B 1984Climatic Change 6 287CrossRefGoogle Scholar
  14. Newell R E, Selkirk R and Ebisuzaki W 1982J. Climatol. 2 357CrossRefGoogle Scholar
  15. Pant G B and Parthasarathy B 1981Arch. Meteorol. Geophys. Bioklimatol. B29 245CrossRefGoogle Scholar
  16. Parthasarathy B 1984Proc. Indian Acad. Sci. (Earth Planet. Sci.) 93 371Google Scholar
  17. Parthasarathy B and Pant G B 1984Tellus A36 269Google Scholar
  18. Parthasarathy B and Pant G B 1985J. Climatol. 5 (in press)Google Scholar
  19. Pisharoty P R 1981Monsoon dynamics (eds.) J Lighthills and R P Pearce (London: Cambridge University Press) pp. 238–251Google Scholar
  20. Quenouille M H 1952Associated measurements (London: Butterworths) p. 242Google Scholar
  21. Ramesh Babu V, Rao L V G and Varadachari V V R 1981Monsoon dynamics (eds.) J Lighthills and R P Pearce (London: Cambridge University Press) p. 481Google Scholar
  22. Rasmusson E M and Carpenter T H 1982Mon. Weather Rev. 110 354CrossRefGoogle Scholar
  23. Rowntree P R 1972Q. J. R. Meteorol. Soc. 98 290CrossRefGoogle Scholar
  24. Scirremammano F Jr 1979J. Phys. Oceanogr. 9 1273CrossRefGoogle Scholar
  25. Shukla J 1975J. Atmos. Sci. 32 503CrossRefGoogle Scholar
  26. Sikka D R 1980Proc. Indian Acad. Sci. (Earth Planet. Sci.) 89 639Google Scholar
  27. Troup A J 1965Q. J. R. Meteorol. Soc. 91 490CrossRefGoogle Scholar
  28. Walker G T 1923Mem. India Meteorol. Dept. 24 75Google Scholar
  29. Walker G T 1924Mem. India Meteorol Dept. 24 275Google Scholar
  30. Walker G T and Bliss E W 1932Mem. R. Meteorol. Soc. 4 53Google Scholar
  31. Walker G T and Bliss E W 1937Mem. R. Meteorol. Soc. 4 119Google Scholar
  32. Weare B C 1979J. Atmos. Sci. 36 2279CrossRefGoogle Scholar
  33. Webster P J 1981J. Atmos. Sci. 38 554CrossRefGoogle Scholar
  34. Wright P B 1975 An index of the Southern Oscillation, Climatic Research Unit, University of East Anglia, Norwich, England, Report No.CRU RP4, 20 pp.Google Scholar

Copyright information

© Indian Academy of Sciences 1985

Authors and Affiliations

  • D. A. Mooley
    • 1
  • B. Parthasarathy
    • 1
  • N. A. Sontakke
    • 1
  1. 1.Indian Institute of Tropical MeteorologyPuneIndia

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