The dynamics of ion layer generation in the 80-150 km altitude region at low and mid-latitudes

John David Mathews

    Research output: Contribution to journalArticle

    7 Citations (Scopus)

    Abstract

    The association of sporadic ion and sporadic sodium layers in the low-latitude, 90-100 km altitude region suggests that we must look beyond the windshear theory for details of the formation mechanism of sporadic layers in the 80-150 km altitude region. We present evidence, including specific 85-105 km results from the AIDA-89 and the ALOHA-90 campaigns, that 80-150 km altitude sporadic layers - including sporadic sodium layers - are generated in a complex interplay of tidal and acoustic-gravity wave (AGW) dynamics with temperature-dependent chemistry where wave-produced temperature variations are both adiabatic and dissipative or turbulent (non-reversible) in origin. We suggest that layering processes are best studied with an instrument cluster that includes sodium and iron lidars, MST radar (turbulence), incoherent scatter radar (electron concentration and winds), meteor radar techniques (winds), passive optical/IR imaging techniques, and appropriate rocket payloads to study a significant volume of the 80-150 km altitude region. We introduce the concept of volumetric radar and lidar techniques.

    Original languageEnglish (US)
    Pages (from-to)673-682
    Number of pages10
    JournalJournal of Atmospheric and Terrestrial Physics
    Volume58
    Issue number6
    DOIs
    StatePublished - Jan 1 1996

    Fingerprint

    Radar
    radar
    ion
    Sodium
    sodium
    Ions
    ions
    incoherent scatter radar
    Gravity waves
    meteoroids
    Infrared imaging
    Optical radar
    meteor
    acoustic wave
    formation mechanism
    gravity waves
    Rockets
    rockets
    tropical regions
    payloads

    All Science Journal Classification (ASJC) codes

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

    Cite this

    @article{5613c394b8134cb49737be8216aa83aa,
    title = "The dynamics of ion layer generation in the 80-150 km altitude region at low and mid-latitudes",
    abstract = "The association of sporadic ion and sporadic sodium layers in the low-latitude, 90-100 km altitude region suggests that we must look beyond the windshear theory for details of the formation mechanism of sporadic layers in the 80-150 km altitude region. We present evidence, including specific 85-105 km results from the AIDA-89 and the ALOHA-90 campaigns, that 80-150 km altitude sporadic layers - including sporadic sodium layers - are generated in a complex interplay of tidal and acoustic-gravity wave (AGW) dynamics with temperature-dependent chemistry where wave-produced temperature variations are both adiabatic and dissipative or turbulent (non-reversible) in origin. We suggest that layering processes are best studied with an instrument cluster that includes sodium and iron lidars, MST radar (turbulence), incoherent scatter radar (electron concentration and winds), meteor radar techniques (winds), passive optical/IR imaging techniques, and appropriate rocket payloads to study a significant volume of the 80-150 km altitude region. We introduce the concept of volumetric radar and lidar techniques.",
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    doi = "10.1016/0021-9169(95)00066-6",
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    The dynamics of ion layer generation in the 80-150 km altitude region at low and mid-latitudes. / Mathews, John David.

    In: Journal of Atmospheric and Terrestrial Physics, Vol. 58, No. 6, 01.01.1996, p. 673-682.

    Research output: Contribution to journalArticle

    TY - JOUR

    T1 - The dynamics of ion layer generation in the 80-150 km altitude region at low and mid-latitudes

    AU - Mathews, John David

    PY - 1996/1/1

    Y1 - 1996/1/1

    N2 - The association of sporadic ion and sporadic sodium layers in the low-latitude, 90-100 km altitude region suggests that we must look beyond the windshear theory for details of the formation mechanism of sporadic layers in the 80-150 km altitude region. We present evidence, including specific 85-105 km results from the AIDA-89 and the ALOHA-90 campaigns, that 80-150 km altitude sporadic layers - including sporadic sodium layers - are generated in a complex interplay of tidal and acoustic-gravity wave (AGW) dynamics with temperature-dependent chemistry where wave-produced temperature variations are both adiabatic and dissipative or turbulent (non-reversible) in origin. We suggest that layering processes are best studied with an instrument cluster that includes sodium and iron lidars, MST radar (turbulence), incoherent scatter radar (electron concentration and winds), meteor radar techniques (winds), passive optical/IR imaging techniques, and appropriate rocket payloads to study a significant volume of the 80-150 km altitude region. We introduce the concept of volumetric radar and lidar techniques.

    AB - The association of sporadic ion and sporadic sodium layers in the low-latitude, 90-100 km altitude region suggests that we must look beyond the windshear theory for details of the formation mechanism of sporadic layers in the 80-150 km altitude region. We present evidence, including specific 85-105 km results from the AIDA-89 and the ALOHA-90 campaigns, that 80-150 km altitude sporadic layers - including sporadic sodium layers - are generated in a complex interplay of tidal and acoustic-gravity wave (AGW) dynamics with temperature-dependent chemistry where wave-produced temperature variations are both adiabatic and dissipative or turbulent (non-reversible) in origin. We suggest that layering processes are best studied with an instrument cluster that includes sodium and iron lidars, MST radar (turbulence), incoherent scatter radar (electron concentration and winds), meteor radar techniques (winds), passive optical/IR imaging techniques, and appropriate rocket payloads to study a significant volume of the 80-150 km altitude region. We introduce the concept of volumetric radar and lidar techniques.

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