trowal

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See also: TROWAL

English

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Etymology

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Short for trough of warm air aloft.

Noun

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trowal (plural trowals)

  1. (meteorology) The projection on the Earth's surface of the trough of warm air aloft formed during the occlusion process of the depression.
    • 2010, William R. Cotton, Storm and Cloud Dynamics, page 564:
      Mid-tropospheric frontogenesis occurred to the northwest of the negative EPV region as the trowal airstream became confluent with the cold air to the north of the cyclone.

Further reading

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