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→Later Development
In the Roman Period, at around 25-50 CE, Pomponius Mela, who was a geographer, formulates a more comprehensive understanding of climatic zones. This includes zones that are comparable to our division of regions into temperate, arctic, desert, and tropical zones. His writings also suggest that these zones were related to the latitude in which someone was in, as more northerly zones generally were colder and more southerly zones had tropical zones. However, within the northern and southern zones, comparable climatic zones could be found and these affect the weather noticeable in those regions.<ref>For more on Pomponius Mala, see: Mela, P. & Romer, F.E. (1998) <i>Pomponius Mela’s description of the world</i>. Ann Arbor, University of Michigan Press.</ref>
Other Late Antiquity and early Medieval developments also occurred in India, a region that had developed a strong meteorological tradition already by around 3000 BCE. Varahamihira wrote at around 500 CE about the importance of early rains and it is clear, similar to Chinese knowledge, that rain did not just come from the sky but related to the sun and evaporation. There were also attempts to correlate revenue, or the wider economy, with rainfall, as the timing of the rains was seen as being critical to affecting the wider economy. The types of clouds were seen as being a strong indication of the types of rains one could expect.<ref>For more on Varahamihra, see: Anon (2014) <i>Challenges and opportunities in agrometeorology</i>. Springer.</ref>
==Modern Technologies==
