Spectroscopic evidence for ?-NAT, STS, and ice in MIPAS infrared limb emission measurements of polar stratospheric clouds
International audience We have analyzed mid-infrared limb-emission measurements of polar stratospheric clouds (PSCs) by the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) during the Antarctic winter 2003 with respect to PSC composition. Coincident lidar observations from McMurdo w...
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ftinsu:oai:HAL:hal-00301878v1 2024-02-11T09:58:26+01:00 Spectroscopic evidence for ?-NAT, STS, and ice in MIPAS infrared limb emission measurements of polar stratospheric clouds Höpfner, M. Luo, B. P. Massoli, P. Cairo, F. Spang, R. Snels, M. Di Donfrancesco, G. Stiller, G. von Clarmann, T. Fischer, H. Biermann, U. Forschungszentrum Karlsruhe Institut für Atmosphäre und Klima Zürich Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology Zürich (ETH Zürich) National Research Council of Italy Forschungszentrum Jülich GmbH Helmholtz-Gemeinschaft = Helmholtz Association Ente per le Nuove tecnologie Max-Planck-Institut für Chemie (MPIC) Max-Planck-Gesellschaft 2005-10-26 https://hal.science/hal-00301878 https://hal.science/hal-00301878/document https://hal.science/hal-00301878/file/acpd-5-10685-2005.pdf en eng HAL CCSD European Geosciences Union hal-00301878 https://hal.science/hal-00301878 https://hal.science/hal-00301878/document https://hal.science/hal-00301878/file/acpd-5-10685-2005.pdf info:eu-repo/semantics/OpenAccess ISSN: 1680-7367 EISSN: 1680-7375 Atmospheric Chemistry and Physics Discussions https://hal.science/hal-00301878 Atmospheric Chemistry and Physics Discussions, 2005, 5 (5), pp.10685-10721 [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere info:eu-repo/semantics/article Journal articles 2005 ftinsu 2024-01-17T17:27:15Z International audience We have analyzed mid-infrared limb-emission measurements of polar stratospheric clouds (PSCs) by the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) during the Antarctic winter 2003 with respect to PSC composition. Coincident lidar observations from McMurdo were used for comparison with PSC types 1a, 1b and 2. By application of new refractive index data we could prove that a spectral signature at 820 cm ?1 as observed by MIPAS near to the observation of a type 1a PSC is due to a composition of ?-NAT. MIPAS infrared spectra collocated with Lidar observations of Type 1b and Type 2 PSCs could only be reproduced by assuming a composition of supercooled ternary H 2 SO 4 /HNO 3 /H 2 O solution (STS) and of ice, respectively. Particle radius and number density profiles derived from MIPAS were generally consistent with the lidar observations. Only in the case of ice clouds, PSC volumes are underestimated due to large cloud optical thickness in the limb-direction. A comparison of MIPAS cloud composition and lidar PSC-type determination based on all available MIPAS-lidar coincident measurements revealed good agreement between PSC-types 1a, 1b and 2, and NAT, STS and ice, respectively. We could not find any spectroscopic evidence for the presence of nitric acid dihydrate (NAD) from any MIPAS observation of PSCs over Antarctica in 2003. Article in Journal/Newspaper Antarc* Antarctic Antarctica Institut national des sciences de l'Univers: HAL-INSU Antarctic The Antarctic |
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 Höpfner, M. Luo, B. P. Massoli, P. Cairo, F. Spang, R. Snels, M. Di Donfrancesco, G. Stiller, G. von Clarmann, T. Fischer, H. Biermann, U. Spectroscopic evidence for ?-NAT, STS, and ice in MIPAS infrared limb emission measurements of polar stratospheric clouds |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
description |
International audience We have analyzed mid-infrared limb-emission measurements of polar stratospheric clouds (PSCs) by the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) during the Antarctic winter 2003 with respect to PSC composition. Coincident lidar observations from McMurdo were used for comparison with PSC types 1a, 1b and 2. By application of new refractive index data we could prove that a spectral signature at 820 cm ?1 as observed by MIPAS near to the observation of a type 1a PSC is due to a composition of ?-NAT. MIPAS infrared spectra collocated with Lidar observations of Type 1b and Type 2 PSCs could only be reproduced by assuming a composition of supercooled ternary H 2 SO 4 /HNO 3 /H 2 O solution (STS) and of ice, respectively. Particle radius and number density profiles derived from MIPAS were generally consistent with the lidar observations. Only in the case of ice clouds, PSC volumes are underestimated due to large cloud optical thickness in the limb-direction. A comparison of MIPAS cloud composition and lidar PSC-type determination based on all available MIPAS-lidar coincident measurements revealed good agreement between PSC-types 1a, 1b and 2, and NAT, STS and ice, respectively. We could not find any spectroscopic evidence for the presence of nitric acid dihydrate (NAD) from any MIPAS observation of PSCs over Antarctica in 2003. |
author2 |
Forschungszentrum Karlsruhe Institut für Atmosphäre und Klima Zürich Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology Zürich (ETH Zürich) National Research Council of Italy Forschungszentrum Jülich GmbH Helmholtz-Gemeinschaft = Helmholtz Association Ente per le Nuove tecnologie Max-Planck-Institut für Chemie (MPIC) Max-Planck-Gesellschaft |
format |
Article in Journal/Newspaper |
author |
Höpfner, M. Luo, B. P. Massoli, P. Cairo, F. Spang, R. Snels, M. Di Donfrancesco, G. Stiller, G. von Clarmann, T. Fischer, H. Biermann, U. |
author_facet |
Höpfner, M. Luo, B. P. Massoli, P. Cairo, F. Spang, R. Snels, M. Di Donfrancesco, G. Stiller, G. von Clarmann, T. Fischer, H. Biermann, U. |
author_sort |
Höpfner, M. |
title |
Spectroscopic evidence for ?-NAT, STS, and ice in MIPAS infrared limb emission measurements of polar stratospheric clouds |
title_short |
Spectroscopic evidence for ?-NAT, STS, and ice in MIPAS infrared limb emission measurements of polar stratospheric clouds |
title_full |
Spectroscopic evidence for ?-NAT, STS, and ice in MIPAS infrared limb emission measurements of polar stratospheric clouds |
title_fullStr |
Spectroscopic evidence for ?-NAT, STS, and ice in MIPAS infrared limb emission measurements of polar stratospheric clouds |
title_full_unstemmed |
Spectroscopic evidence for ?-NAT, STS, and ice in MIPAS infrared limb emission measurements of polar stratospheric clouds |
title_sort |
spectroscopic evidence for ?-nat, sts, and ice in mipas infrared limb emission measurements of polar stratospheric clouds |
publisher |
HAL CCSD |
publishDate |
2005 |
url |
https://hal.science/hal-00301878 https://hal.science/hal-00301878/document https://hal.science/hal-00301878/file/acpd-5-10685-2005.pdf |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic Antarctica |
genre_facet |
Antarc* Antarctic Antarctica |
op_source |
ISSN: 1680-7367 EISSN: 1680-7375 Atmospheric Chemistry and Physics Discussions https://hal.science/hal-00301878 Atmospheric Chemistry and Physics Discussions, 2005, 5 (5), pp.10685-10721 |
op_relation |
hal-00301878 https://hal.science/hal-00301878 https://hal.science/hal-00301878/document https://hal.science/hal-00301878/file/acpd-5-10685-2005.pdf |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1790594091133698048 |