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In-situ measurement of smoke particles in the wintertime polar mesosphere between 80 and 85km altitude

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Title: In-situ measurement of smoke particles in the wintertime polar mesosphere between 80 and 85km altitude
Authors: Amyx, K.1, Sternovsky, Z.1 Zoltan.Sternovsky@colorado.edu, Knappmiller, S.2, Robertson, S.2, Horanyi, M.1,2, Gumbel, J.3
Source: Journal of Atmospheric & Solar-Terrestrial Physics. Jan2008, Vol. 70 Issue 1, p61-70. 10p.
Subjects: Mesosphere, Atmosphere, Altitudes, Geospatial data
Abstract: Abstract: The MAGIC sounding rocket, launched in January 2005 into the polar mesosphere, carried two detectors for charged aerosol particles. The detectors are graphite patch collectors mounted flush with the skin of the payload and are connected to sensitive electrometers. The measured signal is the net current deposited on the detectors by heavy aerosol particles. The collection of electrons and ions is prevented by magnetic shielding and a small positive bias, respectively. Both instruments detected a layer of heavy aerosol particles between 80 and 85km with a number density approximately 103 cm−3. Aerodynamic flow simulations imply that the collected particles are larger than ∼1nm in radius. The particles are detected as a net positive charge deposited on the graphite collectors. It is suggested that the measured positive polarity is due to the electrification of the smoke particles upon impact on the graphite collectors. [Copyright &y& Elsevier]
Copyright of Journal of Atmospheric & Solar-Terrestrial Physics is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 28079348
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Data: In-situ measurement of smoke particles in the wintertime polar mesosphere between 80 and 85km altitude
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  Data: <searchLink fieldCode="AR" term="%22Amyx%2C+K%2E%22">Amyx, K.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Sternovsky%2C+Z%2E%22">Sternovsky, Z.</searchLink><relatesTo>1</relatesTo><i> Zoltan.Sternovsky@colorado.edu</i><br /><searchLink fieldCode="AR" term="%22Knappmiller%2C+S%2E%22">Knappmiller, S.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Robertson%2C+S%2E%22">Robertson, S.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Horanyi%2C+M%2E%22">Horanyi, M.</searchLink><relatesTo>1,2</relatesTo><br /><searchLink fieldCode="AR" term="%22Gumbel%2C+J%2E%22">Gumbel, J.</searchLink><relatesTo>3</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Atmospheric+%26+Solar-Terrestrial+Physics%22">Journal of Atmospheric & Solar-Terrestrial Physics</searchLink>. Jan2008, Vol. 70 Issue 1, p61-70. 10p.
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  Data: <searchLink fieldCode="DE" term="%22Mesosphere%22">Mesosphere</searchLink><br /><searchLink fieldCode="DE" term="%22Atmosphere%22">Atmosphere</searchLink><br /><searchLink fieldCode="DE" term="%22Altitudes%22">Altitudes</searchLink><br /><searchLink fieldCode="DE" term="%22Geospatial+data%22">Geospatial data</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Abstract: The MAGIC sounding rocket, launched in January 2005 into the polar mesosphere, carried two detectors for charged aerosol particles. The detectors are graphite patch collectors mounted flush with the skin of the payload and are connected to sensitive electrometers. The measured signal is the net current deposited on the detectors by heavy aerosol particles. The collection of electrons and ions is prevented by magnetic shielding and a small positive bias, respectively. Both instruments detected a layer of heavy aerosol particles between 80 and 85km with a number density approximately 103 cm−3. Aerodynamic flow simulations imply that the collected particles are larger than ∼1nm in radius. The particles are detected as a net positive charge deposited on the graphite collectors. It is suggested that the measured positive polarity is due to the electrification of the smoke particles upon impact on the graphite collectors. [Copyright &y& Elsevier]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Atmospheric & Solar-Terrestrial Physics is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=28079348
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        Value: 10.1016/j.jastp.2007.09.013
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      – Code: eng
        Text: English
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      Pagination:
        PageCount: 10
        StartPage: 61
    Subjects:
      – SubjectFull: Mesosphere
        Type: general
      – SubjectFull: Atmosphere
        Type: general
      – SubjectFull: Altitudes
        Type: general
      – SubjectFull: Geospatial data
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    Titles:
      – TitleFull: In-situ measurement of smoke particles in the wintertime polar mesosphere between 80 and 85km altitude
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            NameFull: Sternovsky, Z.
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            NameFull: Knappmiller, S.
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            NameFull: Robertson, S.
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            NameFull: Horanyi, M.
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              Text: Jan2008
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              Y: 2008
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