Science

Math

Humanities

... and beyond

Socratic Meta
Featured Answers

Topics

Energy Input and Output on Earth

Key Questions

What is energy input and output on earth?

These are approximations but from NASA,
340 $W$ $W$ / $m^{2}$ $m^2$ is received by Earth 100 $W$ $W$ / $m^{2}$ $m^2$ is reflected by the clouds and ground collectively so about 240 $W$ $W$ / $m^{2}$ $m^2$ is absorbed into either the ground or the atmosphere.

The Earth emits around 400 $W$ $W$ / $m^{2}$ $m^2$ , to which 340 $W$ $W$ / $m^{2}$ $m^2$ is reflected back through greenhouse gases, the rest escaped through radiation. The clouds emit around 30 $W$ $W$ / $m^{2}$ $m^2$ , the atmosphere emits around 170 $W$ $W$ / $m^{2}$ $m^2$ and there is an atmospheric window which emits 40 $W$ $W$ / $m^{2}$ $m^2$ .

These figures were generated using average over a ten year period.

Hope this is useful.

Foyboy298 · 1 · Oct 13 2015

Questions

Energy in Ecosystems

View all chapters

Prev

Next