RAIN
Rain is the main water source for humanity to live on the earth. It is liquid in form fall under gravity of earth. This is the fresh water for earth to drink, irrigate and more purposes of human beings. The weather formation is main important and the clouds on the sky make heavy rain falls in different places. On the mountain sides make heavy rainfalls as while the desert sides as low of rain falls. Also monsoon is the one of the main part of rainy season. Climate changes because of the global warming and also trees cultivates in many places caused of rain falls. Antartica is the driest continent as well as such of Himalayan hills are coldest place of heavy rain falls. Average of rain fall different between different climate situation. The rain fall is measured using Guages. Rain fall amounts can be estimated by Weather Radar. Water droplets are are the main source of rain. Larger water droplets create heavy rain fall while small droplets make small fall of rain. If clouds below freezing ice crystals gain enough mass begin to fall rain drops from 0.1 to 9 mm diameter in its situation. Smaller drops called cloud droplets and the shape is spherical. The biggest rain drops of earth were recorded over Brazil and the Marshal Islands in 2004. The large drop is as large as 10 mm.
Marshal-Palmer Law is the main law about rain and cloud formation in scientific theory. Rain drops impact at their internal velocity. Also the sound of rain drops caused by bubbles of air oscillating under water. Cyclones formed many of the situations in rainy seasons. Also ice changing intensity pallets falls in many more places. It falls as showers with rapidly changing intensity. Kono Storms affect heavy rains. Tropical cyclones a source of very heavy rain fall consist of large air masses several hundred miles across with low pressure at the center. Although cyclones can take an enormous toll in lives and personal property. Summer rain falls mainly during the late afternoon time of warm season. While wet season is a time when air quality improves, also fresh water quality improves. Eastern portions of North and South America Northern Europe, Northern and Central Asia have been wetter. The Sahel, the Meditternean, South Africa and parts of South Asia have been drier. Rain forests are highest rain fall regions such as Amazon and some where in Africa. Some places in India, Malaysia, Africa, South America and Australia being heavy rain fall between 750 to 1500 mm.
GAUGES
Rain is measured in units of length per unit time typically in millimetres per hour. The length or more accurately, depth being measured is the depth of main water that would accumulate on a flat horizontal surface during a given amount of time typically an hour. One millimetre of rain fall is equivalent to one litre of water per square meter. The standard way of measuring rain fall or snow fall is the standard rain gauge which can be round in 100 mm plastic and 200 mm metal varieties. The inner cylinder is filled by 25 mm of rain water, with overflow flowing into the outer cylinder. Plastic gauges have markings on the inner cylinder down to 0.25 mm resolution while metal gauges require use of a stick designed with the appropriate 0.25 mm in markings. After the inner cylinder is filled, the amount inside it is discarded, then filled with the remaining rain fall in the outer cylinder until all the fluid in the outer cylinder is gone, adding overall total until the outer cylinder is empty. Other types of gauges are also used in many places. One of them is Popular Wedge Gauge which is the cheapest rain gauge and the other one is Tipping Bucket Rain Gauge. A can that is cylindrical with straight sides will act as a rain gauge is also some where. Any of the above kind of rain gauges can be made at home and measured any where.
MONSOON
In India monsoon in rainy seasons of its different times of duration.In Tamilnadu South west monsoon and then North east monsoon of every year of this rainy seasons. South west monsoon in the month of July to September. Also North east monsoon in the month of October and November. South west monsoon begin from Kerala and continued for Tamilnadu. Western districts of Tamilnadu such as Ooty, Coimbatore having heavy rain falls during south west monsoon. Kinathukkadavu Taluk mainly heavy rain fall during this time. Kerala mostly get heavy rain fall. Lands greenery during this season and water level of land marks increased.The another monsoon is North east monsoon for every year during the month of October and November. During this season the rain fall north east side of Tamilnadu. It starts from Pay of Bengal.The capital city of Tamilnadu Chennai affected many times for this rain fall.So monsoons are the gift of Tamilnadu and Kerala for giving more and more water every year.
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