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Permafrost
Terrain
Basic data
Movement 3 Move
Effects
  • +50% time to build improvement.
  • +1 Trade if adjacent to river.

Permafrost is a type of terrain.

Description Edit

In geology, permafrost (also known as cryotic soil or permafrost soil) is a soil at or below the freezing point of water for two or more years. Ice is not always present, as may be in the case of nonporous bedrock, but it frequently occurs and it may be in amounts exceeding the potential hydraulic saturation of the ground material.

Most permafrost is located in high latitudes (i.e. land close to the North and South poles), but alpine permafrost may exist at high altitudes in much lower latitudes. Permafrost accounts for 0.022% of total water and exists in 24% of exposed land in the Northern Hemisphere.

Terrains
Earth Barren · Coast · Desert · Dunes · Grassland · Ice · Lush · Marsh · Muddy · Ocean · Permafrost · Plains · Polar coast · Polar ocean · Rocky · Salt flats · Scrub · Tropical coast · Tropical ocean · Tundra
Space Deep space · Space · Void
Moon Lunar barren · Lunar basalt · Lunar desert · Lunar plains · Lunar rocky
Mars Martian barren · Martian desert · Martian dunes · Martian ice · Martian permafrost · Martian plains · Martian rocky