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They have been called generally hemerologies, from the Greek word hēmerologion, "calendar" (from hēmera, meaning "day"). [9] Among them is the so-called Babylonian Almanac, which lists favorable and unfavorable days with advice on what to do on each of them. Successive variants and versions aimed at different readership have been found. [10]
Traditionally, night and day were each allocated four pahars, or "watches." The first pahar of the day (or din pahar) was timed to begin at sunrise, and the first pahar of the night (raat pahar) was timed to begin at sunset. [2] This meant that in the winter the daytime pahars were shorter than the nighttime pahars, and the opposite was true in ...
Weather is the state of the atmosphere, describing for example the degree to which it is hot or cold, wet or dry, calm or stormy, clear or cloudy. [1] On Earth, most weather phenomena occur in the lowest layer of the planet's atmosphere, the troposphere, [2] [3] just below the stratosphere.
Ancient weather forecasting methods usually relied on observed patterns of events, also termed pattern recognition. For example, it was observed that if the sunset was particularly red, the following day often brought fair weather. This experience accumulated over the generations to produce weather lore.
IMD undertakes observations, communications, forecasting and weather services. In collaboration with the Indian Space Research Organisation, the IMD also uses the IRS series and the Indian National Satellite System (INSAT) for weather monitoring of the Indian subcontinent. IMD was first weather bureau of a developing country to develop and ...
2006 – Weather radar improved by adding common precipitation to it such as freezing rain, rain and snow mixed, and snow for the first time. 2007 – The Fujita scale is replaced with the Enhanced Fujita scale for National Weather Service tornado assessments. [83] 2010s – Weather radar dramatically advances with more detailed options. [specify]
The day temperatures are lowered to around 35 °C (95 °F) but humidity is very high and nights are around 27 °C (81 °F). Most of the rainfall occurs in this season, and the rain can cause severe Floods. The sun is often occluded during the monsoon season.
During the Triassic period of 251–199.6 Ma, the Indian subcontinent was the part of a vast supercontinent known as Pangaea.Despite its position within a high-latitude belt at 55–75° S—latitudes now occupied by parts of the Antarctic Peninsula, as opposed to India's current position between 8 and 37° N—India likely experienced a humid temperate climate with warm and frost-free weather ...