There are research papers which mention that panchangs are more accurate than IMD in terms of climate prediction. Moreover, I read that there are multiple predictions possible, over and above rainfall prediction. Can I know if there is any document/book which discusses how this is calculated? I would like to know how it is calculated, and not the links where predictions are available.

  • In any Panjika, we find such information for the farmers-like when to sow the seeds and etc. But I don't know how these are calculated.. It is not mentioned in the Panjika itself. – Rickross Mar 14 '20 at 6:31
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    Sharing one of the researches regarding the panchang being more accurate : researchgate.net/publication/…a_case_study_over_Tirupati_region-_a_semi-arid_tropical_site_in_India?enrichId=rgreq-b3c52ff57bbae368cbad0f9d636da526-XXX&enrichSource=Y292ZXJQYWdlOzIyOTQ0OTM2NDtBUzoxMDEwODQ1ODQ0ODA3NjlAMTQwMTExMTg1MTE3Mw%3D%3D&el=1_x_3&_esc=publicationCoverPdf – Kanchan Mar 17 '20 at 5:46
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    There are more such resources, so hoping to understand how the agriculture/climate related predictions are done. Any views? – Kanchan Mar 17 '20 at 5:46

It comes under mundane Astrology. Sometimes a horoscope is delineated considering location such as Sumeru or Vindhyā at other times, specific verses from Brihat Samhitā, etc. are interpreted. You can look at this research paper to know how it is carried out in the later case.

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