Conservation of vorticity

From Glossary of Meteorology

conservation of vorticity

  1. The statement that in the horizontal flow of an inviscid barotropic fluid, the vertical component of absolute vorticity of each individual fluid particle remains constant.

    The principle was first applied to the atmosphere by Rossby and is the dynamical principle underlying the nondivergent barotropic model of the atmosphere.
    See constant absolute vorticity trajectory.

  2. The hypothesis that the vorticity of individual eddies is conserved during the turbulent mixing of a fluid.

Copyright 2022 American Meteorological Society (AMS). For permission to reuse any portion of this work, please contact Any use of material in this work that is determined to be “fair use” under Section 107 of the U.S. Copyright Act (17 U.S. Code § 107) or that satisfies the conditions specified in Section 108 of the U.S.Copyright Act (17 USC § 108) does not require AMS’s permission. Republication, systematic reproduction, posting in electronic form, such as on a website or in a searchable database, or other uses of this material, except as exempted by the above statement, require written permission or a license from AMS. Additional details are provided in the AMS Copyright Policy statement.