Characterization of the cloud microphysical and optical properties and aerosol-cloud interaction in Arctic from in situ ground-based measurements during the CLIMSLIP-NyA campaign, Svalbard
The arctic region is especially sensitive to climate change. At high latitudes, arctic clouds have an important effect on the surface radiative budget. The first part of this work consists in a ground based cloud instrumentation intercomparison in the PUY station in May 2013. The measurements showed...
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ftccsdartic:oai:HAL:tel-01420119v1 2023-05-15T14:55:21+02:00 Characterization of the cloud microphysical and optical properties and aerosol-cloud interaction in Arctic from in situ ground-based measurements during the CLIMSLIP-NyA campaign, Svalbard Caractérisation des propriétés microphysiques des nuages et de l'interaction aérosol-nuage en Arctique à partir de mesures in-situ au sol pendant la campagne CLIMSLIP-NyA, Svalbard Guyot, Gwennolé Laboratoire de météorologie physique (LaMP) Centre National de la Recherche Scientifique (CNRS)-Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Institut national des sciences de l'Univers (INSU - CNRS) Université Blaise Pascal - Clermont-Ferrand II Valery Shcherbakov 2016-06-01 https://tel.archives-ouvertes.fr/tel-01420119 https://tel.archives-ouvertes.fr/tel-01420119/document https://tel.archives-ouvertes.fr/tel-01420119/file/GUYOT_2016CLF22699.pdf fr fre HAL CCSD NNT: 2016CLF22699 tel-01420119 https://tel.archives-ouvertes.fr/tel-01420119 https://tel.archives-ouvertes.fr/tel-01420119/document https://tel.archives-ouvertes.fr/tel-01420119/file/GUYOT_2016CLF22699.pdf info:eu-repo/semantics/OpenAccess https://tel.archives-ouvertes.fr/tel-01420119 Sciences de la Terre. Université Blaise Pascal - Clermont-Ferrand II, 2016. Français. ⟨NNT : 2016CLF22699⟩ Cloud instrumentation Aerosol-cloud interaction Clouds Arctic Arctique Nuages Interaction aérosol-nuage Instrumentation nuage [SDU.STU]Sciences of the Universe [physics]/Earth Sciences info:eu-repo/semantics/doctoralThesis Theses 2016 ftccsdartic 2021-11-07T04:07:35Z The arctic region is especially sensitive to climate change. At high latitudes, arctic clouds have an important effect on the surface radiative budget. The first part of this work consists in a ground based cloud instrumentation intercomparison in the PUY station in May 2013. The measurements showed a good correlation between the effective diameters and the droplet size distributions obtained by the instruments, but with a systematical bias on the concentrations. These biases have been relied to the assessment of the sampling volume and we thus proposed a methodology to standardize the data according to an ensemble of particles probe. Moreover, the FSSP and the FM have been the subject of experiments to assess the influence of the deflection angle according to exterior wind and the wind speed. The second part of this work is about the measurement campaign at the Mount-Zeppelin station, Ny-Alesund, Svalbard, from March to May 2012 in the frame of the CLIMSLIP project. A comparison has been performed between a « polluted » case, with air masses coming from East Asia and Europe, and a « clean » case, where the aerosol sources are predominantly local and do not exceed the northern Europe. The results showed that the polluted case possessed higher concentrations in BC, aerosols and drops, an accumulation mode more important, weaker droplet diameters and higher activation fraction. Finally, the first and second aerosol indirect effects have been quantified. La région arctique est particulièrement sensible au changement climatique. Aux latitudes polaires, les nuages arctiques ont un effet important sur le bilan radiatif à la surface. La première partie de ce travail est constitué de l’intercomparaison instrumentale au sol à la station PUY en Mai 2013. Les mesures ont montré une bonne corrélation entre les diamètres effectifs et les distributions en taille des gouttelettes d’eau obtenus par les instruments, mais avec des biais systématiques sur les concentrations. Ces biais ont été reliés à l’estimation du volume ... Doctoral or Postdoctoral Thesis Arctic Arctique* Climate change Svalbard Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Arctic Mount Zeppelin ENVELOPE(-61.480,-61.480,-64.444,-64.444) Svalbard |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
French |
topic |
Cloud instrumentation Aerosol-cloud interaction Clouds Arctic Arctique Nuages Interaction aérosol-nuage Instrumentation nuage [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
spellingShingle |
Cloud instrumentation Aerosol-cloud interaction Clouds Arctic Arctique Nuages Interaction aérosol-nuage Instrumentation nuage [SDU.STU]Sciences of the Universe [physics]/Earth Sciences Guyot, Gwennolé Characterization of the cloud microphysical and optical properties and aerosol-cloud interaction in Arctic from in situ ground-based measurements during the CLIMSLIP-NyA campaign, Svalbard |
topic_facet |
Cloud instrumentation Aerosol-cloud interaction Clouds Arctic Arctique Nuages Interaction aérosol-nuage Instrumentation nuage [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
description |
The arctic region is especially sensitive to climate change. At high latitudes, arctic clouds have an important effect on the surface radiative budget. The first part of this work consists in a ground based cloud instrumentation intercomparison in the PUY station in May 2013. The measurements showed a good correlation between the effective diameters and the droplet size distributions obtained by the instruments, but with a systematical bias on the concentrations. These biases have been relied to the assessment of the sampling volume and we thus proposed a methodology to standardize the data according to an ensemble of particles probe. Moreover, the FSSP and the FM have been the subject of experiments to assess the influence of the deflection angle according to exterior wind and the wind speed. The second part of this work is about the measurement campaign at the Mount-Zeppelin station, Ny-Alesund, Svalbard, from March to May 2012 in the frame of the CLIMSLIP project. A comparison has been performed between a « polluted » case, with air masses coming from East Asia and Europe, and a « clean » case, where the aerosol sources are predominantly local and do not exceed the northern Europe. The results showed that the polluted case possessed higher concentrations in BC, aerosols and drops, an accumulation mode more important, weaker droplet diameters and higher activation fraction. Finally, the first and second aerosol indirect effects have been quantified. La région arctique est particulièrement sensible au changement climatique. Aux latitudes polaires, les nuages arctiques ont un effet important sur le bilan radiatif à la surface. La première partie de ce travail est constitué de l’intercomparaison instrumentale au sol à la station PUY en Mai 2013. Les mesures ont montré une bonne corrélation entre les diamètres effectifs et les distributions en taille des gouttelettes d’eau obtenus par les instruments, mais avec des biais systématiques sur les concentrations. Ces biais ont été reliés à l’estimation du volume ... |
author2 |
Laboratoire de météorologie physique (LaMP) Centre National de la Recherche Scientifique (CNRS)-Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Institut national des sciences de l'Univers (INSU - CNRS) Université Blaise Pascal - Clermont-Ferrand II Valery Shcherbakov |
format |
Doctoral or Postdoctoral Thesis |
author |
Guyot, Gwennolé |
author_facet |
Guyot, Gwennolé |
author_sort |
Guyot, Gwennolé |
title |
Characterization of the cloud microphysical and optical properties and aerosol-cloud interaction in Arctic from in situ ground-based measurements during the CLIMSLIP-NyA campaign, Svalbard |
title_short |
Characterization of the cloud microphysical and optical properties and aerosol-cloud interaction in Arctic from in situ ground-based measurements during the CLIMSLIP-NyA campaign, Svalbard |
title_full |
Characterization of the cloud microphysical and optical properties and aerosol-cloud interaction in Arctic from in situ ground-based measurements during the CLIMSLIP-NyA campaign, Svalbard |
title_fullStr |
Characterization of the cloud microphysical and optical properties and aerosol-cloud interaction in Arctic from in situ ground-based measurements during the CLIMSLIP-NyA campaign, Svalbard |
title_full_unstemmed |
Characterization of the cloud microphysical and optical properties and aerosol-cloud interaction in Arctic from in situ ground-based measurements during the CLIMSLIP-NyA campaign, Svalbard |
title_sort |
characterization of the cloud microphysical and optical properties and aerosol-cloud interaction in arctic from in situ ground-based measurements during the climslip-nya campaign, svalbard |
publisher |
HAL CCSD |
publishDate |
2016 |
url |
https://tel.archives-ouvertes.fr/tel-01420119 https://tel.archives-ouvertes.fr/tel-01420119/document https://tel.archives-ouvertes.fr/tel-01420119/file/GUYOT_2016CLF22699.pdf |
long_lat |
ENVELOPE(-61.480,-61.480,-64.444,-64.444) |
geographic |
Arctic Mount Zeppelin Svalbard |
geographic_facet |
Arctic Mount Zeppelin Svalbard |
genre |
Arctic Arctique* Climate change Svalbard |
genre_facet |
Arctic Arctique* Climate change Svalbard |
op_source |
https://tel.archives-ouvertes.fr/tel-01420119 Sciences de la Terre. Université Blaise Pascal - Clermont-Ferrand II, 2016. Français. ⟨NNT : 2016CLF22699⟩ |
op_relation |
NNT: 2016CLF22699 tel-01420119 https://tel.archives-ouvertes.fr/tel-01420119 https://tel.archives-ouvertes.fr/tel-01420119/document https://tel.archives-ouvertes.fr/tel-01420119/file/GUYOT_2016CLF22699.pdf |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1766327150808399872 |