| Frost Line |
Article Index for Frost |
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Information AboutFrost Line |
| CATEGORIES ABOUT FROST LINE | |
| soil science | |
| glaciology | |
| ground freezing | |
| SHOPPER'S DELIGHT | |
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"FROST LINE" IN GEOLOGY In geology, the frost line is the level down to which the Soil will normally Freeze each Winter in a given area. Building Code s must take this into account, as Foundation s must be dug down to or below this point. Failure to do so will cause Frost Heaving to dislodge the Building at least slightly, causing Damage which may become a serious Threat to the building's Structural Integrity . In Chicago and other locations of similar Climate , the frost line is three feet-six inches, or 1.07 Meters . In near- Arctic and Antarctic locations, the frost line is so deep that it becomes Year -round Permafrost , and there is instead a "thaw line" during the Summer . "FROST LINE" IN ASTROPHYSICS In Astronomy or planetary physics, the frost line refers to a particular distance in the Solar Nebula from the central Protosun where it is cool enough for hydrogen compounds such as Water , Ammonia , and Methane to condense into solid ice grains. Depending on density, that temperature is estimated to be about 150 K . The lower temperature in the nebula beyond the frost line makes many more solid grains available for Accretion into Planetesimals and eventually Planets . The frost line therefore separates terrestrial planets from Jovian planets. SEE ALSO |