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Electron loss and meteoric dust in the mesosphere

Friedrich, M. and Rapp, M. and Blix, T. and Hoppe, U.-P. and Torkar, K. and Robertson, S. and Dickson, S. and Lynch, K. (2012) Electron loss and meteoric dust in the mesosphere. Annales Geophysicae, 30, pp. 1495-1501. Copernicus Publications.

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Official URL: http://www.ann-geophys.net/30/1495/2012/angeo-30-1495-2012.html

Abstract

The ionosphere is always assumed to contain equal numbers of positive and negative charges in a given volume (quasineutrality). Hence fewer electrons than positive charges are an indication of negative charges other than electrons. Theories predict and in-situ mass spectrometer measurements confirmed that these negative charges are negative ions, but recent experimental results suggest that other scavengers of free electrons can also be active in the mesosphere. Outside the polar summer mesosphere this additional removal of electrons is today believed to be due to meteoric dust, which maximises in the mesosphere. Data predominantly from the recent ECOMA flights are used to test this presumption. Six sounding rockets carried different dust detectors, as well as probes for electrons and ions. With such an instrumental ensemble one can assess whether indeed the existence of meteoric dust removes more electrons than would be expected from gas phase ion chemistry alone. Other factors potentially impacting on electron removal are also discussed in the paper.

Item URL in elib:https://elib.dlr.de/79369/
Document Type:Article
Title:Electron loss and meteoric dust in the mesosphere
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Friedrich, M.UNSPECIFIEDUNSPECIFIED
Rapp, M.UNSPECIFIEDUNSPECIFIED
Blix, T.UNSPECIFIEDUNSPECIFIED
Hoppe, U.-P.UNSPECIFIEDUNSPECIFIED
Torkar, K.UNSPECIFIEDUNSPECIFIED
Robertson, S.UNSPECIFIEDUNSPECIFIED
Dickson, S.UNSPECIFIEDUNSPECIFIED
Lynch, K.UNSPECIFIEDUNSPECIFIED
Date:2012
Journal or Publication Title:Annales Geophysicae
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:30
Page Range:pp. 1495-1501
Publisher:Copernicus Publications
Status:Published
Keywords:Atmospheric composition and structure, aerosols and particles
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Vorhaben Atmosphären- und Klimaforschung
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics
Deposited By: Freund, Jana
Deposited On:03 Dec 2012 13:29
Last Modified:08 Mar 2018 18:47

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