Observations of meteoritic material and implications for aerosol nucleation in the winter Arctic lower stratosphere derived from in situ particle measurements
Number concentrations of total and non-volatile aerosol particles with size diameters > 0.01 mu m as well as particle size distributions (0.4 - 23 mu m diameter) were measured in situ in the Arctic lower stratosphere ( 10 - 20.5 km altitude). The measurements were obtained during the campaigns Eu...
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ftfzjuelichnvdb:oai:juser.fz-juelich.de:48483 2023-05-15T14:56:41+02:00 Observations of meteoritic material and implications for aerosol nucleation in the winter Arctic lower stratosphere derived from in situ particle measurements Curtius, J. Weigel, R. Schlager, H. Dreiling, V. Borrmann, S. Vössing, H.-J. Wernli, H. Werner, A. Volk, C.-M. Konopka, Paul Krebsbach, M. Schiller, C. Roiger, A. DE 2005 https://juser.fz-juelich.de/record/48483 https://juser.fz-juelich.de/search?p=id:%22PreJuSER-48483%22 eng eng EGU info:eu-repo/semantics/altIdentifier/hdl/2128/749 info:eu-repo/semantics/altIdentifier/issn/1680-7316 info:eu-repo/semantics/altIdentifier/wos/WOS:000233317600002 https://juser.fz-juelich.de/record/48483 https://juser.fz-juelich.de/search?p=id:%22PreJuSER-48483%22 info:eu-repo/semantics/openAccess Atmospheric chemistry and physics 5, 3053 - 3069 (2005). info:eu-repo/classification/ddc/550 J info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2005 ftfzjuelichnvdb 2022-07-14T10:54:25Z Number concentrations of total and non-volatile aerosol particles with size diameters > 0.01 mu m as well as particle size distributions (0.4 - 23 mu m diameter) were measured in situ in the Arctic lower stratosphere ( 10 - 20.5 km altitude). The measurements were obtained during the campaigns European Polar Stratospheric Cloud and Lee Wave Experiment (EUPLEX) and Envisat-Arctic-Validation (EAV). The campaigns were based in Kiruna, Sweden, and took place from January to March 2003. Measurements were conducted onboard the Russian high-altitude research aircraft Geophysica using the low-pressure Condensation Nucleus Counter COPAS (COndensation PArticle Counter System) and a modified FSSP 300 ( Forward Scattering Spectrometer Probe). Around 18 - 20 km altitude typical total particle number concentrations n(t) range at 10 - 20 cm(-3) ( ambient conditions). Correlations with the trace gases nitrous oxide (N2O) and trichlorofluoromethane (CFC-11) are discussed. Inside the polar vortex the total number of particles > 0.01 mu m increases with potential temperature while N2O is decreasing which indicates a source of particles in the above polar stratosphere or mesosphere. A separate channel of the COPAS instrument measures the fraction of aerosol particles non-volatile at 250 degrees C. Inside the polar vortex a much higher fraction of particles contained non-volatile residues than outside the vortex ( similar to 67% inside vortex, similar to 24% outside vortex). This is most likely due to a strongly increased fraction of meteoric material in the particles which is transported downward from the mesosphere inside the polar vortex. The high fraction of non-volatile residual particles gives therefore experimental evidence for downward transport of mesospheric air inside the polar vortex. It is also shown that the fraction of non-volatile residual particles serves directly as a suitable experimental vortex tracer. Nanometer-sized meteoric smoke particles may also serve as nuclei for the condensation of gaseous sulfuric ... Article in Journal/Newspaper Arctic Kiruna Forschungszentrum Jülich: JuSER (Juelich Shared Electronic Resources) Arctic Kiruna |
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Open Polar |
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Forschungszentrum Jülich: JuSER (Juelich Shared Electronic Resources) |
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ftfzjuelichnvdb |
language |
English |
topic |
info:eu-repo/classification/ddc/550 J |
spellingShingle |
info:eu-repo/classification/ddc/550 J Curtius, J. Weigel, R. Schlager, H. Dreiling, V. Borrmann, S. Vössing, H.-J. Wernli, H. Werner, A. Volk, C.-M. Konopka, Paul Krebsbach, M. Schiller, C. Roiger, A. Observations of meteoritic material and implications for aerosol nucleation in the winter Arctic lower stratosphere derived from in situ particle measurements |
topic_facet |
info:eu-repo/classification/ddc/550 J |
description |
Number concentrations of total and non-volatile aerosol particles with size diameters > 0.01 mu m as well as particle size distributions (0.4 - 23 mu m diameter) were measured in situ in the Arctic lower stratosphere ( 10 - 20.5 km altitude). The measurements were obtained during the campaigns European Polar Stratospheric Cloud and Lee Wave Experiment (EUPLEX) and Envisat-Arctic-Validation (EAV). The campaigns were based in Kiruna, Sweden, and took place from January to March 2003. Measurements were conducted onboard the Russian high-altitude research aircraft Geophysica using the low-pressure Condensation Nucleus Counter COPAS (COndensation PArticle Counter System) and a modified FSSP 300 ( Forward Scattering Spectrometer Probe). Around 18 - 20 km altitude typical total particle number concentrations n(t) range at 10 - 20 cm(-3) ( ambient conditions). Correlations with the trace gases nitrous oxide (N2O) and trichlorofluoromethane (CFC-11) are discussed. Inside the polar vortex the total number of particles > 0.01 mu m increases with potential temperature while N2O is decreasing which indicates a source of particles in the above polar stratosphere or mesosphere. A separate channel of the COPAS instrument measures the fraction of aerosol particles non-volatile at 250 degrees C. Inside the polar vortex a much higher fraction of particles contained non-volatile residues than outside the vortex ( similar to 67% inside vortex, similar to 24% outside vortex). This is most likely due to a strongly increased fraction of meteoric material in the particles which is transported downward from the mesosphere inside the polar vortex. The high fraction of non-volatile residual particles gives therefore experimental evidence for downward transport of mesospheric air inside the polar vortex. It is also shown that the fraction of non-volatile residual particles serves directly as a suitable experimental vortex tracer. Nanometer-sized meteoric smoke particles may also serve as nuclei for the condensation of gaseous sulfuric ... |
format |
Article in Journal/Newspaper |
author |
Curtius, J. Weigel, R. Schlager, H. Dreiling, V. Borrmann, S. Vössing, H.-J. Wernli, H. Werner, A. Volk, C.-M. Konopka, Paul Krebsbach, M. Schiller, C. Roiger, A. |
author_facet |
Curtius, J. Weigel, R. Schlager, H. Dreiling, V. Borrmann, S. Vössing, H.-J. Wernli, H. Werner, A. Volk, C.-M. Konopka, Paul Krebsbach, M. Schiller, C. Roiger, A. |
author_sort |
Curtius, J. |
title |
Observations of meteoritic material and implications for aerosol nucleation in the winter Arctic lower stratosphere derived from in situ particle measurements |
title_short |
Observations of meteoritic material and implications for aerosol nucleation in the winter Arctic lower stratosphere derived from in situ particle measurements |
title_full |
Observations of meteoritic material and implications for aerosol nucleation in the winter Arctic lower stratosphere derived from in situ particle measurements |
title_fullStr |
Observations of meteoritic material and implications for aerosol nucleation in the winter Arctic lower stratosphere derived from in situ particle measurements |
title_full_unstemmed |
Observations of meteoritic material and implications for aerosol nucleation in the winter Arctic lower stratosphere derived from in situ particle measurements |
title_sort |
observations of meteoritic material and implications for aerosol nucleation in the winter arctic lower stratosphere derived from in situ particle measurements |
publisher |
EGU |
publishDate |
2005 |
url |
https://juser.fz-juelich.de/record/48483 https://juser.fz-juelich.de/search?p=id:%22PreJuSER-48483%22 |
op_coverage |
DE |
geographic |
Arctic Kiruna |
geographic_facet |
Arctic Kiruna |
genre |
Arctic Kiruna |
genre_facet |
Arctic Kiruna |
op_source |
Atmospheric chemistry and physics 5, 3053 - 3069 (2005). |
op_relation |
info:eu-repo/semantics/altIdentifier/hdl/2128/749 info:eu-repo/semantics/altIdentifier/issn/1680-7316 info:eu-repo/semantics/altIdentifier/wos/WOS:000233317600002 https://juser.fz-juelich.de/record/48483 https://juser.fz-juelich.de/search?p=id:%22PreJuSER-48483%22 |
op_rights |
info:eu-repo/semantics/openAccess |
_version_ |
1766328765630119936 |