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Characterizing the onset and demise of the Indian summer monsoon

Title: Characterizing the onset and demise of the Indian summer monsoon.
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Name(s): Noska, Ryne, author
Misra, Vasubandhu, author
Type of Resource: text
Genre: Text
Date Issued: 2016-05-16
Physical Form: computer
online resource
Extent: 1 online resource
Language(s): English
Abstract/Description: An objective index of the onset and demise of the Indian summer monsoon (ISM) is introduced. This index has the advantage of simplicity by using only one variable, which is the spatially averaged all-India rainfall, a reliably observed quantity for more than a century. The proposed onset index is shown to be insensitive to all historic false onsets. By definition, now the seasonal mean rainfall anomalies become a function of variations in onset and demise dates, rendering their monitoring to be very meaningful. This new index provides a comprehensive representation of the seasonal evolution of the ISM by capturing the corresponding changes in large-scale dynamic and thermodynamic variables. We also show that the interannual variability of the onset date of the ISM is associated with El Nino-Southern Oscillation (ENSO) with early (late) onsets preceded by cold (warm) ENSO.
Identifier: FSU_libsubv1_wos_000378339200057 (IID), 10.1002/2016GL068409 (DOI)
Keywords: definition, Dynamics, Evolution, interannual variability, ocean, plateau, rainfall, season, sensitivity, south asian monsoon
Publication Note: The publisher’s version of record is available at http://www.dx.doi.org/10.1002/2016GL068409
Persistent Link to This Record: http://purl.flvc.org/fsu/fd/FSU_libsubv1_wos_000378339200057
Owner Institution: FSU
Is Part Of: Geophysical Research Letters.
0094-8276
Issue: iss. 9, vol. 43

Choose the citation style.
Noska, R., & Misra, V. (2016). Characterizing the onset and demise of the Indian summer monsoon. Geophysical Research Letters. Retrieved from http://purl.flvc.org/fsu/fd/FSU_libsubv1_wos_000378339200057