English-Finnish translations for airmass

a widespread body of air, the properties of which can be identified as: having been established while that air was situated over a particular region of the Earth's surface and undergoing specific modifications while in transit away from the source region. An air mass is often defined as a widespread body of air that is approximately homogeneous in its horizontal extent, particularly with reference to temperature and moisture distribution; in addition, the vertical temperature and moisture variations are approximately the same over its horizontal extent

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