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    Eternal Astro Physics, Sanatana Jyotis Shaastra,  has many branches. One of them is Astro Meteorology, which  is an integration of Meteorology, an atmospheric science and Astrology, the Wisdom of the Nine Revolving Heavens. The Solar transits of the constellations are studied  and each solar transit was found to have some characteristics. The Kerala mathematicians, after years of Experimentation, Observation and Hypothesis,  came up with the Kerala Njauttuvela Calendar. Intuitive Sciences involve the sixth element  of Intuition also.                                                        


    Annual Rainfall, monthly rainfall, rainfall map, tropical rainforest rainfall, rainfall intensity,  rainfall cycles are all measured by     Sanatana Jyotis Kalavasttha Saastra or Astro Meteorology.  

    World class astronomers ( Madhava, Paramesvara et al ) observed the Heavens. They indulged in Observation, Experimentation, Hypothesis, Generalisation and Classification, which is the Fivefold Scientific Method and they devised the Vedic Calendar accurately.

     

    According to Physics, the land gets heated faster than the Sea and cool winds from the Bengal of Bengal pick up moisture and pour over India, during Thula Varsha. The reverse happens during Edava Pathi  ( Half sidereal Taurus, that is when Sun enters the 15th degree of Edava or Taurus ) cool winds from the Indian Ocean pick up moisture and precipitate  over India ! 

     

    This astronomical phenemenon was known to the Indian mathematicians who accurately devised the Calendar and the two Monsoons, Kala Varsha and Thula Varsha ! 

    Let us see what the Sun creates during his journey through the 360 degrees Circle of Light, the Jyotis Chakra !

     

        Degrees        Event

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    0     		Vishu
    10 Patham Udayam
    45 Kala Varsha
    90 Dakshinayana
    120 Mal  Era Start
    180 Thula Varsha
    210 Mandala Kala
    270 Uttarayana

     

    Kala Varsha -   From May 29 to Sep 16

    Thula Varsha - From Sep 17 to Dec 26

     

    In Kerala, only three major seasons are experienced. They are more or less related to the revolution of the Earth or the Sun's longitude.

    Shaithya, Winter -When Solar Longitude is in between 240 and 300. ( Dhanus, Makara )

    Ushna, Summer - When Sun's longitude is in between 300 and 45 ( Kumbha, Meena, Mesha and 1/2 Vrishabha )

    Varsha, Rainy Season - When Sun's long is 45 - 240 degrees,.( Half Vrishabha to Vrischika )

    The best books on Astro Meteorology 

    Mysterium Cosmographicum - By Kepler 

    The Krishi Geetha  -  by  Parasurama.

    The Farmer's Almanac 

     

    Here are some articles which integrate Meteorology and Astrology 

     
    Astro Meteorology Solar Transit of Gemini
    Astro-Meteorology II Vishu, the planting season of Kerala
    Thula Varsha Astro Meteorology and Economics
    Edava Pathi Global Warming
    Rainy Solar Transit of Lamda Orionis ( Makiryam Njattuvela ) strikes Kerala Global Warming causeth Climate Change
    Rains galore as Sun transits Alpha Orionis ! Rainy Solar Transits or Njattuvelas 
    The Vedic Astro Calendar Destructive Njattuvelas 
    Rainfall Cycles
    		Climate Change good for Kerala 

    Astro Meteorology V 

 

 
 
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