First aerosol optical thickness measurements at Dome C (East Antarctica), summer season 2003–2004
International audience In the framework of a calibration project concerning satellite sensors over a remote site of inland Antarctica, the temporal variations of atmospheric aerosol properties have been investigated in relation to their strong influence on the transfer of visible radiation. For this...
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ftinsu:oai:HAL:insu-00374934v1 2024-04-28T08:01:04+00:00 First aerosol optical thickness measurements at Dome C (East Antarctica), summer season 2003–2004 Six, Delphine Fily, Michel Blarel, Luc Goloub, Philippe Laboratoire de glaciologie et géophysique de l'environnement (LGGE) Observatoire des Sciences de l'Univers de Grenoble (OSUG) Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) Laboratoire d’Optique Atmosphérique - UMR 8518 (LOA) Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lille-Centre National de la Recherche Scientifique (CNRS) 2005 https://insu.hal.science/insu-00374934 https://doi.org/10.1016/j.atmosenv.2005.05.010 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.atmosenv.2005.05.010 insu-00374934 https://insu.hal.science/insu-00374934 doi:10.1016/j.atmosenv.2005.05.010 ISSN: 0004-6981 Atmospheric environment https://insu.hal.science/insu-00374934 Atmospheric environment, 2005, 39 (28), pp.5041 à 5050. ⟨10.1016/j.atmosenv.2005.05.010⟩ [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere info:eu-repo/semantics/article Journal articles 2005 ftinsu https://doi.org/10.1016/j.atmosenv.2005.05.010 2024-04-05T00:31:43Z International audience In the framework of a calibration project concerning satellite sensors over a remote site of inland Antarctica, the temporal variations of atmospheric aerosol properties have been investigated in relation to their strong influence on the transfer of visible radiation. For this, a sunphotometer was installed at Concordia station (75°S, 123°E, 3200 m a.s.l.) on the Antarctic plateau during summer season 2003–2004. Meteorological parameters were recorded for the same period. Very low aerosol optical thickness values were observed with a mean AOT of 0.02 at 440 nm and 0.007 at 870 nm for clear sky conditions, and a small standard deviation. Angstrom coefficients were high with an average of 1.65 at 440 nm. These values reflect the high purity of the atmosphere and the small size of particles, mainly sulfate aerosols. Higher AOT values are observed under diamond dust conditions (0.025 at 440 nm and 0.013 at 870 nm). Temporal variations are also observed at the daily and seasonal levels. Dome C, therefore, appears to be an excellent site for satellite sensor calibration as well as investigations concerning the background atmospheric composition and global atmosphere changes caused by human activities. Article in Journal/Newspaper Antarc* Antarctic Antarctica East Antarctica Institut national des sciences de l'Univers: HAL-INSU Atmospheric Environment 39 28 5041 5050 |
institution |
Open Polar |
collection |
Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
spellingShingle |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere Six, Delphine Fily, Michel Blarel, Luc Goloub, Philippe First aerosol optical thickness measurements at Dome C (East Antarctica), summer season 2003–2004 |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
description |
International audience In the framework of a calibration project concerning satellite sensors over a remote site of inland Antarctica, the temporal variations of atmospheric aerosol properties have been investigated in relation to their strong influence on the transfer of visible radiation. For this, a sunphotometer was installed at Concordia station (75°S, 123°E, 3200 m a.s.l.) on the Antarctic plateau during summer season 2003–2004. Meteorological parameters were recorded for the same period. Very low aerosol optical thickness values were observed with a mean AOT of 0.02 at 440 nm and 0.007 at 870 nm for clear sky conditions, and a small standard deviation. Angstrom coefficients were high with an average of 1.65 at 440 nm. These values reflect the high purity of the atmosphere and the small size of particles, mainly sulfate aerosols. Higher AOT values are observed under diamond dust conditions (0.025 at 440 nm and 0.013 at 870 nm). Temporal variations are also observed at the daily and seasonal levels. Dome C, therefore, appears to be an excellent site for satellite sensor calibration as well as investigations concerning the background atmospheric composition and global atmosphere changes caused by human activities. |
author2 |
Laboratoire de glaciologie et géophysique de l'environnement (LGGE) Observatoire des Sciences de l'Univers de Grenoble (OSUG) Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) Laboratoire d’Optique Atmosphérique - UMR 8518 (LOA) Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lille-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Six, Delphine Fily, Michel Blarel, Luc Goloub, Philippe |
author_facet |
Six, Delphine Fily, Michel Blarel, Luc Goloub, Philippe |
author_sort |
Six, Delphine |
title |
First aerosol optical thickness measurements at Dome C (East Antarctica), summer season 2003–2004 |
title_short |
First aerosol optical thickness measurements at Dome C (East Antarctica), summer season 2003–2004 |
title_full |
First aerosol optical thickness measurements at Dome C (East Antarctica), summer season 2003–2004 |
title_fullStr |
First aerosol optical thickness measurements at Dome C (East Antarctica), summer season 2003–2004 |
title_full_unstemmed |
First aerosol optical thickness measurements at Dome C (East Antarctica), summer season 2003–2004 |
title_sort |
first aerosol optical thickness measurements at dome c (east antarctica), summer season 2003–2004 |
publisher |
HAL CCSD |
publishDate |
2005 |
url |
https://insu.hal.science/insu-00374934 https://doi.org/10.1016/j.atmosenv.2005.05.010 |
genre |
Antarc* Antarctic Antarctica East Antarctica |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica |
op_source |
ISSN: 0004-6981 Atmospheric environment https://insu.hal.science/insu-00374934 Atmospheric environment, 2005, 39 (28), pp.5041 à 5050. ⟨10.1016/j.atmosenv.2005.05.010⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.atmosenv.2005.05.010 insu-00374934 https://insu.hal.science/insu-00374934 doi:10.1016/j.atmosenv.2005.05.010 |
op_doi |
https://doi.org/10.1016/j.atmosenv.2005.05.010 |
container_title |
Atmospheric Environment |
container_volume |
39 |
container_issue |
28 |
container_start_page |
5041 |
op_container_end_page |
5050 |
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1797572988204220416 |