File:The green house effect.svg
Summary
This diagram shows how the <a href="https://en.wikipedia.org/wiki/greenhouse_effect" class="extiw" title="en:greenhouse effect">greenhouse effect</a> works. Incoming solar radiation to the Earth equals 341 <a href="https://en.wikipedia.org/wiki/watt" class="extiw" title="en:watt">watts</a> per square meter (Trenberth et al., 2009). Some of the solar radiation is reflected back from the <a href="https://en.wikipedia.org/wiki/Earth" class="extiw" title="en:Earth">Earth</a> by clouds, the atmosphere, and the <a href="https://en.wikipedia.org/wiki/Earth%27s_surface" class="extiw" title="en:Earth's surface">Earth's surface</a> (102 watts per square meter). Some of the solar radiation passes through the atmosphere. About half of the solar radiation is absorbed by the Earth's surface (161 watts per square meter). Solar radiation is converted to heat energy, causing the emission of longwave (infrared) radiation back to the atmosphere (396 watts per square meter). Some of the infrared radiation is absorbed and re-emitted by heat-trapping <a href="https://en.wikipedia.org/wiki/greenhouse_gas" class="extiw" title="en:greenhouse gas">"greenhouse" gases</a> in the atmosphere. Outgoing infrared radiation from the Earth equals 239 watts per square meter.
References:
- Trenberth, K. E., J. T. Fasullo, and J. Kiehl, 2009: <a rel="nofollow" class="external text" href="http://www.cgd.ucar.edu/cas/Trenberth/trenberth.papers/TFK_bams09.pdf">Earth's global energy budget (PDF).</a> Bull. Amer. Meteor. Soc., 90, No. 3, 311-324, doi: 10.1175/2008BAMS2634.1.
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| Date/Time | Dimensions | User | Comment | |
|---|---|---|---|---|
| current | 17:22, 6 January 2017 | (2 KB) | 127.0.0.1 (talk) | This diagram shows how the <a href="https://en.wikipedia.org/wiki/greenhouse_effect" class="extiw" title="en:greenhouse effect">greenhouse effect</a> works. Incoming solar radiation to the Earth equals 341 <a href="https://en.wikipedia.org/wiki/watt" class="extiw" title="en:watt">watts</a> per square meter (Trenberth <i>et al.</i>, 2009). Some of the solar radiation is reflected back from the <a href="https://en.wikipedia.org/wiki/Earth" class="extiw" title="en:Earth">Earth</a> by clouds, the atmosphere, and the <a href="https://en.wikipedia.org/wiki/Earth%27s_surface" class="extiw" title="en:Earth's surface">Earth's surface</a> (102 watts per square meter). Some of the solar radiation passes through the atmosphere. About half of the solar radiation is absorbed by the Earth's surface (161 watts per square meter). Solar radiation is converted to heat energy, causing the emission of longwave (infrared) radiation back to the atmosphere (396 watts per square meter). Some of the infrared radiation is absorbed and re-emitted by heat-trapping <a href="https://en.wikipedia.org/wiki/greenhouse_gas" class="extiw" title="en:greenhouse gas">"greenhouse" gases</a> in the atmosphere. Outgoing infrared radiation from the Earth equals 239 watts per square meter.<br><br><i>References</i>: <ul><li>Trenberth, K. E., J. T. Fasullo, and J. Kiehl, 2009: <a rel="nofollow" class="external text" href="http://www.cgd.ucar.edu/cas/Trenberth/trenberth.papers/TFK_bams09.pdf">Earth's global energy budget (PDF).</a> <i>Bull. Amer. Meteor. Soc.,</i> <b>90,</b> No. 3, 311-324, doi: 10.1175/2008BAMS2634.1.</li></ul> |
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