Generation of sporadic sodium layers via turbulent heating of the atmosphere?

Qihou Zhou, John David Mathews

    Research output: Contribution to journalArticle

    27 Citations (Scopus)

    Abstract

    When a gravity wave breaks down, its energy is dumped in a narrow altitude range initiating an increase in temperature, which may consequently generate sporadic sodium layers (SSL) through temperature sensitive chemistries. In order to estimate the temperature change resulted from gravity wave breakdown, the energy dissipation through viscous process is discussed. We show that SSLs can be successfully siimulated by solving the continuity equation with a temperature dependent production function. The generation of the largest SSL observed at Arecibo is shown to be associated with gravity waves exhibiting very short vertical wavelength. Simultaneous sodium and temperature measurements suggest that the heating mechanism proposed here as a possible explanation to the occurrence of SSLs, if viable, is more applicable to low and middle latitudes than high latitudes.

    Original languageEnglish (US)
    JournalJournal of Atmospheric and Terrestrial Physics
    Volume57
    Issue number11
    DOIs
    StatePublished - Jan 1 1995

    Fingerprint

    gravity waves
    sodium
    heating
    atmospheres
    atmosphere
    gravity wave
    breakdown
    temperature
    continuity equation
    tropical regions
    polar regions
    temperature measurement
    energy dissipation
    occurrences
    chemistry
    wavelength
    estimates
    wavelengths
    energy

    All Science Journal Classification (ASJC) codes

    • Environmental Science(all)
    • Engineering(all)
    • Geophysics
    • Atmospheric Science
    • Earth and Planetary Sciences(all)

    Cite this

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    title = "Generation of sporadic sodium layers via turbulent heating of the atmosphere?",
    abstract = "When a gravity wave breaks down, its energy is dumped in a narrow altitude range initiating an increase in temperature, which may consequently generate sporadic sodium layers (SSL) through temperature sensitive chemistries. In order to estimate the temperature change resulted from gravity wave breakdown, the energy dissipation through viscous process is discussed. We show that SSLs can be successfully siimulated by solving the continuity equation with a temperature dependent production function. The generation of the largest SSL observed at Arecibo is shown to be associated with gravity waves exhibiting very short vertical wavelength. Simultaneous sodium and temperature measurements suggest that the heating mechanism proposed here as a possible explanation to the occurrence of SSLs, if viable, is more applicable to low and middle latitudes than high latitudes.",
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    Generation of sporadic sodium layers via turbulent heating of the atmosphere? / Zhou, Qihou; Mathews, John David.

    In: Journal of Atmospheric and Terrestrial Physics, Vol. 57, No. 11, 01.01.1995.

    Research output: Contribution to journalArticle

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    T1 - Generation of sporadic sodium layers via turbulent heating of the atmosphere?

    AU - Zhou, Qihou

    AU - Mathews, John David

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    AB - When a gravity wave breaks down, its energy is dumped in a narrow altitude range initiating an increase in temperature, which may consequently generate sporadic sodium layers (SSL) through temperature sensitive chemistries. In order to estimate the temperature change resulted from gravity wave breakdown, the energy dissipation through viscous process is discussed. We show that SSLs can be successfully siimulated by solving the continuity equation with a temperature dependent production function. The generation of the largest SSL observed at Arecibo is shown to be associated with gravity waves exhibiting very short vertical wavelength. Simultaneous sodium and temperature measurements suggest that the heating mechanism proposed here as a possible explanation to the occurrence of SSLs, if viable, is more applicable to low and middle latitudes than high latitudes.

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