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Home / Agro-Meterology (page 2)

Agro-Meterology

EVS basics -1

EVS

Ozone layer is mainly found in the lower stratospheric layer, more appropriately 25 km height from the ground Troposphere and stratosphere contain 99 % of the total mass of the atmosphere World agriculture started about – 10,000 years back Indian agriculture started about – 6000 years back First biosphere reserve …

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The depletion of the Ozone layer

Ozone layer

The ozone is a thin layer of atmosphere that protects us from the sun. It wraps all the way around the Earth, about 10 to 30 miles straight up. From the beginning of time, the ozone has blocked the sun’s most dangerous ultraviolet rays from reaching us. It continues to …

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Causes of Climatic Variability

climate

Causes of Climatic Variability External cause Solar output: An increase in solar output by 0.3% when compared to 1650–1700 A.D. data. • Orbital variation: 1. Earth orbit varies form almost a complete circle to marked ellipse (Eccentricity). 2. Wobble of earth’s axis (Precession of equinox) 3. Tilt of the earth’s …

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Evaporation

Evaporation

The change of state of water from solid and liquid to the vapour and its diffusion into the atmosphere is referred to as evaporation. In agricultural meteorology, evaporation is defined as the maximum possible loss of moisture form a wet, horizontal, flat surface exposed to weather parameters, which exist in …

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Cloud Formation

Cloud Formation

Formation of clouds can be understand by the concept:- Air contains moisture and this is extremely important to the formation of clouds. Cloud is formed around microscopic particles such as dust, smoke, salt crystals and other materials that are present in the atmosphere. These materials are called “Cloud Condensation Nucleus” …

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structure of atmosphere-modern view

In modern view regarding the structure of atmosphere, the atmosphere is divided into two broad spheres on the basis of composition. I. Homospheres Homosphere means zone of homogenous composition height-up to 88 km. The proportions of the component gases of the sphere are uniform at different levels. It is sub-divided …

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