Abstract
Rainfall over south peninsular India during the northeast (NE) monsoon season (Oct–Dec) shows significant interannual variation. In the present study, we relate the northeast monsoon rainfall (NEMR) over south peninsular India with the major oscillations like El Niño Southern Oscillation (ENSO), Indian Ocean Dipole (IOD), and Equatorial Indian Ocean Oscillation (EQUINOO) in the Indian and Pacific Oceans. For establishing the teleconnections, sea surface temperature, outgoing long wave radiation, and circulation data have been used. The present study reveals that the positive phase of ENSO, IOD, and EQUINOO favor the NEMR to be normal or above normal over southern peninsular India. The study reveals that the variability of NEMR over south peninsula can be well explained by its relationship with positive phase of ENSO, IOD, and EQUINOO.
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Authors are thankful to joint CSIR-NAL NMITLI project, CSIR, New Delhi for financial support. Authors also thank the authorities of S.V. University for their support and IMD, New Delhi for their data.
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Sreekala, P.P., Rao, S.V.B. & Rajeevan, M. Northeast monsoon rainfall variability over south peninsular India and its teleconnections. Theor Appl Climatol 108, 73–83 (2012). https://doi.org/10.1007/s00704-011-0513-x
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DOI: https://doi.org/10.1007/s00704-011-0513-x