Rain lands in the mountains and runs into streams and rivers. If the river is dammed, then the water is collected behind the dam. It can be used for irrigation, to supply drinking water to communities, and to generate electricity through hydro-electric power.
It is also collected from rooftops into rainwater tanks, which can store water for garden or personal use.
A Rain Gage
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Lakes, rivers, cisterns, reservoirs.
On one square meter of earth, the height of the rain collected is one cm and therefore the amount of water collected turns about 10 liter.
Catchment area. All the land where rain falls and runs into rivers and dams.
Humidity and the amount of rainfall collected can be used to gauge the moist damp atmospheric conditions.
0.09992 X 280 = 27.98 m3
The only civilization that I can think of is the Mayans, they built large reservoirs that collected their very frequent rainfall.
Because of the harsh weather in rajasthan thick walls prevent the house from being too heated during summer and also keep the house warm during cold winters. Houses have flat roofs because Rajasthan receives very less rainfall so there no use in having slanting roofs and also they help to retain water to keep the house cool...!!
there are 3 types of rainfall which are still exsisting: relief rainfall convectional rainfall Frontal rainfall
relief rainfall convectional rainfall Frontal rainfall
Average Annual Rainfall is 43.1 inches. January Rainfall: 3.57 February Rainfall: 2.84 March Rainfall: 3.92 April Rainfall: 3.26 May Rainfall: 4.29 June Rainfall: 3.63 July Rainfall: 4.21 August Rainfall: 3.9 September Rainfall: 4.08 October Rainfall: 3.43 November Rainfall: 3.32 December Rainfall: 3.25