Mass analysis of charged aerosol particles in NLC and PMSE during the ECOMA/MASS campaign
MASS (Mesospheric Aerosol Sampling Spectrometer) is a multichannel mass spectrometer for charged aerosol particles, which was flown from the Andøya Rocket Range, Norway, through NLC and PMSE on 3 August 2007 and through PMSE on 6 August 2007. The eight-channel analyzers provided for the first time s...
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München : European Geopyhsical Union
2009
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ftdatacite:10.34657/1574 2023-05-15T13:25:45+02:00 Mass analysis of charged aerosol particles in NLC and PMSE during the ECOMA/MASS campaign Robertson, S. Horányi, M. Knappmiller, S. Sternovsky, Z. Holzworth, R. Shimogawa, M. Friedrich, M. Torkar, K. Gumbel, J. Megner, L. Baumgarten, G. Latteck, R. Rapp, M. Hoppe, U.-P. Hervig, M.E. 2009 application/pdf https://dx.doi.org/10.34657/1574 https://oa.tib.eu/renate/handle/123456789/4042 en eng München : European Geopyhsical Union Creative Commons Attribution 3.0 Unported CC BY 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY Aerosols and particles Atmospheric composition and structure Cloud physics and chemistry Ionosphere Polar ionosphere aerosol atmospheric chemistry atmospheric structure cloud condensation nucleus electron density in situ measurement ionosphere nucleation particle size 530 CreativeWork article 2009 ftdatacite https://doi.org/10.34657/1574 2022-03-10T12:43:22Z MASS (Mesospheric Aerosol Sampling Spectrometer) is a multichannel mass spectrometer for charged aerosol particles, which was flown from the Andøya Rocket Range, Norway, through NLC and PMSE on 3 August 2007 and through PMSE on 6 August 2007. The eight-channel analyzers provided for the first time simultaneous measurements of the charge density residing on aerosol particles in four mass ranges, corresponding to ice particles with radii <0.5 nm (including ions), 0.5–1 nm, 1–2 nm, and >3 nm (approximately). Positive and negative particles were recorded on separate channels. Faraday rotation measurements provided electron density and a means of checking charge density measurements made by the spectrometer. Additional complementary measurements were made by rocket-borne dust impact detectors, electric field booms, a photometer and ground-based radar and lidar. The MASS data from the first flight showed negative charge number densities of 1500–3000 cm−3 for particles with radii >3 nm from 83–88 km approximately coincident with PMSE observed by the ALWIN radar and NLC observed by the ALOMAR lidar. For particles in the 1–2 nm range, number densities of positive and negative charge were similar in magnitude (~2000 cm−3) and for smaller particles, 0.5–1 nm in radius, positive charge was dominant. The occurrence of positive charge on the aerosol particles of the smallest size and predominately negative charge on the particles of largest size suggests that nucleation occurs on positive condensation nuclei and is followed by collection of negative charge during subsequent growth to larger size. Faraday rotation measurements show a bite-out in electron density that increases the time for positive aerosol particles to be neutralized and charged negatively. The larger particles (>3 nm) are observed throughout the NLC region, 83–88 km, and the smaller particles are observed primarily at the high end of the range, 86–88 km. The second flight into PMSE alone at 84–88 km, found only small number densities (~500 cm−3) of particles >3 nm in a narrow altitude range, 86.5–87.5 km. Both positive (~2000 cm−3) and negative (~4500 cm−3) particles with radii 1–2 nm were detected from 85–87.5 km. Article in Journal/Newspaper Andøya DataCite Metadata Store (German National Library of Science and Technology) Alomar ENVELOPE(-67.083,-67.083,-68.133,-68.133) Andøya ENVELOPE(13.982,13.982,68.185,68.185) Faraday ENVELOPE(-64.256,-64.256,-65.246,-65.246) Norway |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Aerosols and particles Atmospheric composition and structure Cloud physics and chemistry Ionosphere Polar ionosphere aerosol atmospheric chemistry atmospheric structure cloud condensation nucleus electron density in situ measurement ionosphere nucleation particle size 530 |
spellingShingle |
Aerosols and particles Atmospheric composition and structure Cloud physics and chemistry Ionosphere Polar ionosphere aerosol atmospheric chemistry atmospheric structure cloud condensation nucleus electron density in situ measurement ionosphere nucleation particle size 530 Robertson, S. Horányi, M. Knappmiller, S. Sternovsky, Z. Holzworth, R. Shimogawa, M. Friedrich, M. Torkar, K. Gumbel, J. Megner, L. Baumgarten, G. Latteck, R. Rapp, M. Hoppe, U.-P. Hervig, M.E. Mass analysis of charged aerosol particles in NLC and PMSE during the ECOMA/MASS campaign |
topic_facet |
Aerosols and particles Atmospheric composition and structure Cloud physics and chemistry Ionosphere Polar ionosphere aerosol atmospheric chemistry atmospheric structure cloud condensation nucleus electron density in situ measurement ionosphere nucleation particle size 530 |
description |
MASS (Mesospheric Aerosol Sampling Spectrometer) is a multichannel mass spectrometer for charged aerosol particles, which was flown from the Andøya Rocket Range, Norway, through NLC and PMSE on 3 August 2007 and through PMSE on 6 August 2007. The eight-channel analyzers provided for the first time simultaneous measurements of the charge density residing on aerosol particles in four mass ranges, corresponding to ice particles with radii <0.5 nm (including ions), 0.5–1 nm, 1–2 nm, and >3 nm (approximately). Positive and negative particles were recorded on separate channels. Faraday rotation measurements provided electron density and a means of checking charge density measurements made by the spectrometer. Additional complementary measurements were made by rocket-borne dust impact detectors, electric field booms, a photometer and ground-based radar and lidar. The MASS data from the first flight showed negative charge number densities of 1500–3000 cm−3 for particles with radii >3 nm from 83–88 km approximately coincident with PMSE observed by the ALWIN radar and NLC observed by the ALOMAR lidar. For particles in the 1–2 nm range, number densities of positive and negative charge were similar in magnitude (~2000 cm−3) and for smaller particles, 0.5–1 nm in radius, positive charge was dominant. The occurrence of positive charge on the aerosol particles of the smallest size and predominately negative charge on the particles of largest size suggests that nucleation occurs on positive condensation nuclei and is followed by collection of negative charge during subsequent growth to larger size. Faraday rotation measurements show a bite-out in electron density that increases the time for positive aerosol particles to be neutralized and charged negatively. The larger particles (>3 nm) are observed throughout the NLC region, 83–88 km, and the smaller particles are observed primarily at the high end of the range, 86–88 km. The second flight into PMSE alone at 84–88 km, found only small number densities (~500 cm−3) of particles >3 nm in a narrow altitude range, 86.5–87.5 km. Both positive (~2000 cm−3) and negative (~4500 cm−3) particles with radii 1–2 nm were detected from 85–87.5 km. |
format |
Article in Journal/Newspaper |
author |
Robertson, S. Horányi, M. Knappmiller, S. Sternovsky, Z. Holzworth, R. Shimogawa, M. Friedrich, M. Torkar, K. Gumbel, J. Megner, L. Baumgarten, G. Latteck, R. Rapp, M. Hoppe, U.-P. Hervig, M.E. |
author_facet |
Robertson, S. Horányi, M. Knappmiller, S. Sternovsky, Z. Holzworth, R. Shimogawa, M. Friedrich, M. Torkar, K. Gumbel, J. Megner, L. Baumgarten, G. Latteck, R. Rapp, M. Hoppe, U.-P. Hervig, M.E. |
author_sort |
Robertson, S. |
title |
Mass analysis of charged aerosol particles in NLC and PMSE during the ECOMA/MASS campaign |
title_short |
Mass analysis of charged aerosol particles in NLC and PMSE during the ECOMA/MASS campaign |
title_full |
Mass analysis of charged aerosol particles in NLC and PMSE during the ECOMA/MASS campaign |
title_fullStr |
Mass analysis of charged aerosol particles in NLC and PMSE during the ECOMA/MASS campaign |
title_full_unstemmed |
Mass analysis of charged aerosol particles in NLC and PMSE during the ECOMA/MASS campaign |
title_sort |
mass analysis of charged aerosol particles in nlc and pmse during the ecoma/mass campaign |
publisher |
München : European Geopyhsical Union |
publishDate |
2009 |
url |
https://dx.doi.org/10.34657/1574 https://oa.tib.eu/renate/handle/123456789/4042 |
long_lat |
ENVELOPE(-67.083,-67.083,-68.133,-68.133) ENVELOPE(13.982,13.982,68.185,68.185) ENVELOPE(-64.256,-64.256,-65.246,-65.246) |
geographic |
Alomar Andøya Faraday Norway |
geographic_facet |
Alomar Andøya Faraday Norway |
genre |
Andøya |
genre_facet |
Andøya |
op_rights |
Creative Commons Attribution 3.0 Unported CC BY 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.34657/1574 |
_version_ |
1766387809945387008 |