Following are the major favorable conditions for evaporation:
This happens when,
Cloud Group (Based on Height) |
Subdivision |
size and extent |
Colour |
Normal (Height in Meters) |
high clouds | 1. Partisanship | horizontal extension | white | 6000 to 12,000 |
2. Partisan level | like a thin sheet, horizontal expansion | white and transparent white | 6 to 10,000 | |
3. sided cotton | like parallel ridges of sand, horizontal expansion | white | 7 to 10,000 | |
medium cloud | 1. Intermediate | like a continuous uniform sheet, extended horizontally | brown, blue | 2 to 5,000 |
2. Middle cotton | Spherical and partially fibrous with thick folds, horizontal extension | white and brown | 3 to 8,000 | |
clouds of low vertical expansion | 1. Layered Cotton | continuous thin even-folded, horizontally expanded, spherical or cylindrical | brown | 1600 to 3000 |
2. Level | horizontally and vertically extended cloud | The upper part is bright and the lower part is dark brown or black | below 3000 | |
3. Cotton | Cabbage flower-like vertical cloud | The upper part is bright and the lower part is dark brown or black | 300 to 1600 | |
4. Cotton year or thunder cloud | Huge size like mountains, vertical extension | The upper part is bright and the lower part is dark brown or black | Base 300 to 1500 and Head 14 to 1500 in the tropics |
forms of precipitation |
||
precipitation |
Precipitation details |
precipitation clouds |
Rain | When 0.5 mm from the clouds If the big drops more than the diameter fall on the ground, then it is named rain. | Na, As, Sc, Ac Castellanus, Cu congestus |
snow | The rain of white-colored crystalline snowflakes is called snowfall. The diameter of the snowflakes in the snow is 4 or 5 mm. and the nature of the snowflakes is like stars. | St, Sc |
Spray | It is a rain of fine droplets. In this, the diameter of the water droplets is 0.5 mm. is less than. It usually falls in a calm or very slow wind current. | St, Sc |
hail | When big balls of ice from the clouds, whose diameter is from 5 to 50 mm. or sometimes 4 cm. 5 cm from If it falls, then this form of precipitation is called hail. | Cb |
drizzle | Under this, small balls of ice or frozen water droplets and unfrozen water droplets fall on the ground. In the freezing rain, very cold water droplets fall on the ground, due to which it is called Sahim i.e. rain with snow. | |
You | It is a combination of snow and mist. Snow in it is opaque. It is formed by the sudden freezing of very cold water droplets. | |
freezing rain | It is that form of rain in which the rain reaches the land in the form of water, but after reaching the land, it freezes. | St, Sc |
snow bullet | It is the precipitation of white-colored opaque ice spherical grains. The diameter of the snow grains is 2 to 5 mm. of can be. Generally, while falling on the ground, these snow grains break and become disintegrated by hitting the ground. | |
Ice pill and ice list | These are also ice balls whose diameter is less than 5 mm. These are transparent and round-shaped or irregular-shaped tablets. Sometimes some ravines of snow fall 2 mm. become elongated. Which have been named ice charts. | Cb |
On the basis of uneven distribution of rainfall, the world can be divided into four rain regions-
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