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Showing posts with the label Aerosols

Review and Microphysics of the Maximum Electricity Atmospheric Activity in the World: the Catatumbo Lightning (Venezuela)

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Review and Microphysics of the Maximum Electricity Atmospheric Activity in the World: the Catatumbo Lightning (Venezuela) DOI:  https://doi.org/10.30564/jasr.v4i2.2740 Abstract A review of the state of knowledge and phenomenology on the site of the greatest atmospheric electrical activity in the world, known as the Catatumbo Lightning, located southeast of Lake Maracaibo (Venezuela), is presented. A microphysical model is presented to explain the charging process through electrical displacement within the cells of the cloud, incorporating the role of the self-polarization of ice and methane molecules as pyroelectric aerosol, which accounts for the phenomenology and is consistent with electrification in thunderstorm. It is concluded that the pyroelectric model allows to explain the phenomenology of the rapid discharges of the flashes in the Catatumbo lightning and could be applied in outer planetary lightning. Keywords:  Catatumbo lightning, Atmospheric electricity, Microphysic...

On the Impact of Bell Sound on Ambient Particulates

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On the Impact of Bell Sound on Ambient Particulates DOI:  https://doi.org/10.30564/jasr.v5i4.5121 Abstract Here the authors examine whether bell sounds can have an impact on ambient aerosol levels and size distribution under atmospheric conditions. The authors present calculation results for acoustic the coagulation by church bell sounds for a range of ambient aerosol types. The results show that for orthokinetic sonic agglomeration, while the frequency spectrum of church bells is ideal for causing coagulation of ambient aerosols, the sound pressure level (SPL) becomes too low for an effect. However, in very polluted conditions, at extremely short distances from the bell dust aerosols can readily undergo sonic coagulation. Keywords:  Sound, Aerosols, particulate matter, Sound pressure level

Review and Microphysics of the Maximum Electricity Atmospheric Activity in the World: the Catatumbo Lightning (Venezuela)

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Review and Microphysics of the Maximum Electricity Atmospheric Activity in the World: the Catatumbo Lightning (Venezuela) DOI:  https://doi.org/10.30564/jasr.v4i2.2740 Abstract A review of the state of knowledge and phenomenology on the site of the greatest atmospheric electrical activity in the world, known as the Catatumbo Lightning, located southeast of Lake Maracaibo (Venezuela), is presented. A microphysical model is presented to explain the charging process through electrical displacement within the cells of the cloud, incorporating the role of the self-polarization of ice and methane molecules as pyroelectric aerosol, which accounts for the phenomenology and is consistent with electrification in thunderstorm. It is concluded that the pyroelectric model allows to explain the phenomenology of the rapid discharges of the flashes in the Catatumbo lightning and could be applied in outer planetary lightning. Keywords Catatumbo lightning; Atmospheric electricity; Microphysical of c...