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Objective criteria for discrimination of irrotational and rotational motions in the atmosphere

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Summary

Objective criteria are obtained for irrotational frictionless flow in the case of pure geostrophic, isallobaric and thermal wind flow. For rotational flow, a criterion is obtained in the case of non-permanent barotropic conditions, by introducing the concept ofabsolute potential vorticity. These criteria permit practical discrimination of conditions related to rotational or irrotational motion in the atmosphere, in an objective way.

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References

  1. F. Di Benedetto,Su alcune proprietà notevoli del rotore del vento di gradiente, Ann. Geofis.VI, 4 (1953).

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  2. F. Di Benedetto,Analysis of the vorticity and divergence of thermal wind in pure geostrophic flow, Arch. Met. Geoph. Bioklim.10, 1 (1957).

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  3. F. Di Benedetto,Sul rotore del vento isallobarico, XV Convegno dell'AGI, Roma, 16–17 June, 1966.

  4. C. G. Rossby, Quart. J. Roy. Met. Soc.66, Suppl. 68 (1940).

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Author notes

  1. F. Di Benedetto (Professor of Aerology)

    Present address: European Space Research Organization (ESRO), 34, Rue La Pérouse, Paris 16e, France

Authors and Affiliations

  1. Institute of Physics, University of Aquila, Aquila, Italy

    F. Di Benedetto (Professor of Aerology)

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  1. F. Di Benedetto
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Di Benedetto, F. Objective criteria for discrimination of irrotational and rotational motions in the atmosphere. PAGEOPH 67, 193–196 (1967). https://doi.org/10.1007/BF00880578

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  • DOI: https://doi.org/10.1007/BF00880578

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