Difference between revisions of "Heat Balance"
m (1 revision(s)) |
|
(No difference)
|
Revision as of 19:41, 2 May 2007
This definition page has been automatically generated. You can help ExoDictionary by expanding, updating, or correcting it. |
This autostub has not yet had its initial copyediting proof and may contain significant formatting and even factual errors. You can improve Exodictionary by cleaning up the page markup and verifying that the definition is correct and then removing this tag. |
This autostub has not yet had its initial categorization proof and may be categorized incorrectly. You can improve Exodictionary by removing inappropriate categories and then removing this tag. |
Heat Balance
</dt>
1. The equilibrium which exists on the average between the radiation
received by a planet and its
atmosphere from the sun and that emitted by the planet and atmosphere.
</dd>
That the equilibrium does exist in the mean is demonstrated by the
observed long-term constancy of the earth's surface temperature. On the
average, regions of the earth nearer the equator than about 35 degrees
latitude receive more energy from the sun than they are able to radiate,
whereas latitudes higher than 35 degrees received less. The excess of heat is
carried from low latitudes to higher latitudes by atmospheric and oceanic
circulations and is reradiated there.
</dd>
2. The equilibrium which is known to exist when all sources of heat gain
and loss for a given region or body are accounted for. In general this balance
includes advective, evaporative (etc.) terms as well as a radiation term.
</dd>
References
This article is based on NASA's Dictionary of Technical Terms for Aerospace Use