1Relating to mountains, especially with regard to their position and form.
- The 925-mb pressure level surface at about 750 m a.s.l. would be closer to frequent bird migration altitudes but is more exposed to orographic distortions and often not available.
- It's an elongated depression between orographic protuberances.
1.1(Of clouds or rainfall) resulting from the effects of mountains in forcing moist air to rise.
- When there is an isolated peak, a banner cloud can form, which is a type of orographic cloud.
- Hilly areas can get extra rainfall from what is known as the orographic effect which occurs where air is forced to rise over high ground, causing clouds followed by rain.
- Maximum precipitation values in Antarctica are found a short way inland at an altitude of about 1600 m, where orographic precipitation is greatest.
- Example sentences
- Meteorological and geo-orographical relationships with lightning activity in Castilla-Leon (Spain).
- The following table has been compiled from planimetric measurements made at the School of Geography, Oxford, on the orographical map of England and Wales
Definition of orographic in:
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