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Spatial scale is a specific application of the term scale for describing or categorizing (e.g. into orders of magnitude) the size of a space (hence spatial), or the extent of it at which a phenomenon or process occurs.cite-ref-pennu-1-0[1]cite-ref-2[2]

For instance, in physics an object or phenomenon can be called microscopic if too small to be visible. In climatology, a micro-climate is a climate which might occur in a mountain, valley or near a lake shore. In statistics, a megatrend is a political, social, economical, environmental or technological trend which involves the whole planet or is supposed to last a very large amount of time. The concept is also used in geography, astronomy, and meteorology.cite-ref-3[3]

These divisions are somewhat arbitrary; where, on this table, mega- is assigned global scope, it may only apply continentally or even regionally in other contexts. The interpretations of meso- and macro- must then be adjusted accordingly.

| Scale | Length | Area | Description |

|---|---|---|---|

| Micro | 1 m – 1 km | 1 m 2 – 1 km 2 | local |

| Meso | 1 km - 100 km | 1 km 2 - 10,000 km 2 | regional |

| Macro | 100 km - 10,000 km | 10,000 km 2 - 100,000,000 km 2 | continental |

| Mega | 10,000 km - 1,000,000 km | 100,000,000 - 10,000,000,000 km 2 | global |

| Giga | >1,000,000 km | >10,000,000,000 km 2 | superglobal |

• See also

• References

• Astronomical units of length

• Cosmic distance ladder

• List of examples of lengths

• Location of Earth

• Meteorological subdivisions:

• Microscale meteorology

• Misoscale meteorology

• Mesoscale meteorology

• Synoptic scale meteorology

• Orders of magnitude (length)

• Scale (analytical tool)

• Scale (geography)

• Scale (map)

• Scale (ratio)

cite-note-pennu-11. ↑ "Scale". The Pennsylvania State University. 2020. Retrieved 21 December 2020.

cite-note-22. ↑ "Spatial Scale - an overview | ScienceDirect Topics". www.sciencedirect.com. Retrieved 2024-02-08.

cite-note-33. ↑ "spatial scale". United Nations Economic and Social Commission for Western Asia. 2015-10-06. Retrieved 2024-02-08.

cite-note-41. "The Science and Art of Meteorology". education.nationalgeographic.org. Retrieved 2024-02-08.