Fil:Frozenground.gif

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Frozenground.gif‎ (350 × 352 pikslar, filstorleik: 33 KB, MIME-type: image/gif)

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[edit] Summary

English: Distributions of permafrost in the Northern Hemisphere.

purple region : permafrost
blue regions : seasonally frozen ground (the soil is frozen for 15 days or more per year )
pink regions : intermittently frozen ground ( the soil is frozen for fewer than 15 days per year )
solid line : the average maximum extent of the seasonal snow cover

Русский: Районы вечной мерзлоты северного полушария.

Фиолетовый: регионы вечной мерзлоты;
Синий: регионы, где почва замерзает более, чем на 15 суток в году;
Розовый: регионы, где почва замерзает менее, чем на 15 суток в году;
Сплошная линия: граница области, где зимой выпадает снег.

日本語: 北半球での凍土の分布。

紫：永久凍土
青：季節的凍土（土壌の凍結が年間15日以上の地域）
ピンク：季節的凍土（土壌の凍結が年間15日以下の地域）
黒線：積雪地域南限（平均）

[edit] Licensing

The original public domain NASA picture modified by me (-map legend, black background > white, smaller size).

This file is in the public domain because it was created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (NASA copyright policy page or JPL Image Use Policy).

Warnings:

Use of NASA logos, insignia and emblems are restricted per US law 14 CFR 1221.
The NASA website hosts a large number of images from the Soviet/Russian space agency, and other non-American space agencies. These are not in the public domain.
Materials from the Hubble Space Telescope may be copyrighted if they do not explicitly come from the STScI. [1]
All materials created by the SOHO probe are copyrighted and require permission for commercial non-educational use. [2]
Images featured on the Astronomy Picture of the Day (APOD) web site may be copyrighted. [3]

Filhistorikk

Klikk på dato/klokkeslett for å sjå fila slik ho var på det tidspunktet.

	Dato/klokkeslett	Brukar	Oppløysing	Filstorleik	Kommentar
noverande	19:10, 3 juli 2005	Adam	350×352	33 KB	(Distributions of permafrost in the Northern Hemispher. purple region : permafrost blue regions : seasonally frozen ground (the soil is frozen for 15 days or more per year ) *pink regions : intermittently frozen ground ( the soil is frozen for fewer t)
	02:00, 18 april 2005	Ktz	350×372	33 KB	(Distributions of permafrost in the Nortern Hemispher. {{PD-USGov-NASA}} http://earthobservatory.nasa.gov/Study/FrozenSoils/)

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Permafrost