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Earth System Dynamics An interactive open-access journal of the European Geosciences Union

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© Author(s) 2013. This work is distributed under
the Creative Commons Attribution 3.0 License.
Research article
18 Apr 2013
Review status
This discussion paper is a preprint. It has been under review for the journal Earth System Dynamics (ESD). A final paper in ESD is not foreseen.
Trend of standardized precipitation index during Indian summer monsoon season in agroclimatic zones of India
S. Jha1, V. K. Sehgal2, R. Raghava1, and M. Sinha3 1Centre for Atmospheric Sciences, Indian Institute of Technology, Delhi, New Delhi, 110016, India
2Division of Agricultural Physics, Indian Agricultural Research Institute, New Delhi, 110012, India
3Department of Pure and Applied Sciences, NIIT University, Neemrana, Alwar, 301705, India
Abstract. Standardized precipitation index (SPI) was computed with CRU TS3.0 gridded 0.5 × 0.5° monthly precipitation dataset for each of the 14 mainland agroclimatic zones (ACZs) of India for individual months (June, July, August and September) and season (JJAS) of summer monsoon for 56 yr (1951–2006). Mann Kendall Trend Test with the representative SPI of the ACZs shows that only six out of 14 mainland ACZs have a significant trend during summer monsoon. Trans-Gangetic plain significantly gains wetness during the month of June. West coast plain and hill has a typical feature of significant increasing trend of wetness during June and increasing dryness during July. In general Upper Gangetic plain, Middle Gangetic plain, Central plateau and hill and Eastern plateau and hill have a significantly increasing drying trend during the whole duration of summer monsoon season.

Citation: Jha, S., Sehgal, V. K., Raghava, R., and Sinha, M.: Trend of standardized precipitation index during Indian summer monsoon season in agroclimatic zones of India, Earth Syst. Dynam. Discuss.,, 2013.
S. Jha et al.
Interactive discussionStatus: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version      Supplement - Supplement
RC C275: 'Review of the paper on climatic trend of precipitation over INdian region', Anonymous Referee #1, 18 Jun 2013 Printer-friendly Version 
RC C351: 'general and specific comments', Anonymous Referee #2, 11 Jul 2013 Printer-friendly Version 
S. Jha et al.
S. Jha et al.


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