Insolation and Heat Balance

Options:

1. The direct shortwave radiation from the sun
2. The diffuse radiation scattered by the atmosphere
3. The direct shortwave radiation from the sun, plus the diffuse radiation scattered by the atmosphere
4. None of the above

Correct Answer

Options:

1. 1/2 billionth part of the total energy radiated from the outer surface of the sun
2. 1/20 billionth part of the total energy radiated from the outer surface of the sun
3. 1/200 billionth part of the total energy radiated from the outer surface of the sun
4. 1/2000 billionth part of the total energy radiated from the outer surface of the sun

Correct Answer

1. There is large energy surplus area between the zones of 20°n and 20°s
2. Net radiation rapidly decreases from the energy surplus areas of low latitudes towards mid-latitudes
3. Net radiation becomes practically zero near 70° latitude in the northern and southern hemispheres
4. The polar areas are the zones of perennial energy deficit

Options:

1. 1, 2 and 3
2. 2, 3 and 4
3. 1, 2 and 4
4. All of the above

Correct Answer