Consider the following statements with refrence to the Insolation 1 The energy radiated from sun is ...........

Geography Atmosphere

Consider the following statements with refrence to the Insolation:

1. The energy radiated from sun is known as short-wave solar radiation whereas the energy radiated from Earth is known as long-wave radiation.

2. The long wave radiation is absorbed by the atmospheric gases particularly by carbon dioxide and the other green house gases.

Which of the statements given above is/are correct?

1 only

2 only

Both 1 and 2

Neither 1 Nor 2

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Explanation:

Both the statement 1 and 3 are correct

Insolation is the incident solar radiation onto some object. Specifically, it is a measure of the solar energy that is incident on a specified area over a set period of time. Not all of the solar energy that reaches the Earth actually reaches the surface of the Earth. Although 1367 W/m2 of sunlight strikes the outer atmosphere, about 30% of it is reflected back into space. After this reflection, a certain spot on the Earth might see almost all or almost none of this sunlight. There are many factors that help determine how much sunlight actually reaches a given area, but some of them include sun angle, air mass, day length, cloud coverage, and pollution levels.