1. Based on the accompanying figure, what is the total solar flux intercepted by

Question

1. Based on the accompanying figure, what is the total solar flux intercepted by the Earth (Watts per square meter)?

A. 107 W.m^-2

B.235

C.342

D 390

E.684

2.

Just insert a number into the box for each answer.

Of the 342 Watts per square meter of solar radiation incident on Earth, ________Watts per square meter are absorbed by the surface.________Watts per square meter are absorbed by the atmosphere, and

________Watts per square meter are reflected by clouds, aerosols, and atmospheric gases.________ Watts per square meter are reflected by the surface.

3.

Enter only a number in the blanks.Based on the accompanying figure, complete the following paragraph.

The Earth's surface emits a total of________Watts per square meter of longwave radiation upward. Of this amount, ________Watts per square meter escape directly to space through the atmospheric 'window.' Clouds and greenhouse gases absorb the rest of this surface emission, or 350 Watts per square meter. The atmosphere emits________Watts per square meter of longwave radiation back to the surface ("back radiation"). The total of________Watts per square meter of longwave radiation eventually escapes back to space, balancing the net of 342-107 Watts per square meter of solar radiation that is absorbed by the Earth.

Outgoing Longwave Radiation 235 Wm2 235 Reflected Solar 107 Wm2 Reflected by Clouds, / Incoming Solar Radiation 342 Wm2 107Radiation 342 Aerosol and Atmospheric Gases Emitted by Atmosphere 165 40 Atmospheric 30 Window Emitted by Clouds Absorbed by 67 Atmosphere Greenhouse Gases Latent 24 78 Heat 40 Reflected by Surface 30 324 Back Radiation 350 390 Surface 24 78 Absorbed by Thermals Evapo- Radiation 168 324 Absorbed by Surface Surface transpiration

Explanation / Answer

Ans 1) C- 342 Wm^-2

Explanation- Interception here refers to the amount of radiation received by the Earth.

Ans 2) Of the 342 watts per square meter of solar radiation incident on Earth, 168 watts per square meter are absorbed by the surface. 67 watts per square meter are absorbed by the atmosphere and 77 watts per square meter are reflected by the cloud aerosol and atmospheric gases. 30 watts per square meter are reflected by the surface.

Ans 3) The Earths surface emits a total of 390 watts per square meter of longwave radiation upwards. Of these 40 watts per square meter escape directly to the space through the atmospheric window. Clouds and greenhouse gases absorb the rest of this surface emission or 350 watts per square meter. The emits 324 watts per square meter of longwave radiations back to the surface. The total of 235 watts per square meter of longwave radiation eventually escapes back to space balancing the net of 342-107 watts per square meter of solar radiation that is absorbed by the Earth.

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