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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ftccsdartic:oai:HAL:hal-00295880v1 2023-05-15T13:32:14+02:00 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) Consiglio Nazionale delle Ricerche Roma (CNR) Forschungszentrum Jülich GmbH Helmholtz-Gemeinschaft = Helmholtz Association Ente per le Nuove tecnologie Max-Planck-Institut für Chemie (MPIC) Max-Planck-Gesellschaft 2006-04-20 https://hal.archives-ouvertes.fr/hal-00295880 https://hal.archives-ouvertes.fr/hal-00295880/document https://hal.archives-ouvertes.fr/hal-00295880/file/acp-6-1201-2006.pdf en eng HAL CCSD European Geosciences Union hal-00295880 https://hal.archives-ouvertes.fr/hal-00295880 https://hal.archives-ouvertes.fr/hal-00295880/document https://hal.archives-ouvertes.fr/hal-00295880/file/acp-6-1201-2006.pdf info:eu-repo/semantics/OpenAccess ISSN: 1680-7316 EISSN: 1680-7324 Atmospheric Chemistry and Physics https://hal.archives-ouvertes.fr/hal-00295880 Atmospheric Chemistry and Physics, European Geosciences Union, 2006, 6 (5), pp.1201-1219 [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere info:eu-repo/semantics/article Journal articles 2006 ftccsdartic 2021-12-19T04:11:16Z 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. Application of new refractive index data of ?-NAT have allowed to accurately simulate the prominent spectral band at 820 cm -1 observed by MIPAS at the location where the Lidar instrument observed type 1a PSCs. Broadband spectral fits covering the range from 780 to 960 cm -1 and from 1220 to 1490 cm -1 showed best agreement with the MIPAS measurements when spectroscopic data of NAT were used to simulate the MIPAS spectra. MIPAS measurements 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 partly underestimated by MIPAS 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 spectroscopic evidence for the presence of nitric acid dihydrate (NAD) from MIPAS observations of PSCs over Antarctica in 2003. Article in Journal/Newspaper Antarc* Antarctic Antarctica Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Antarctic The Antarctic |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
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. Application of new refractive index data of ?-NAT have allowed to accurately simulate the prominent spectral band at 820 cm -1 observed by MIPAS at the location where the Lidar instrument observed type 1a PSCs. Broadband spectral fits covering the range from 780 to 960 cm -1 and from 1220 to 1490 cm -1 showed best agreement with the MIPAS measurements when spectroscopic data of NAT were used to simulate the MIPAS spectra. MIPAS measurements 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 partly underestimated by MIPAS 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 spectroscopic evidence for the presence of nitric acid dihydrate (NAD) from MIPAS observations 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) Consiglio Nazionale delle Ricerche Roma (CNR) 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 |
2006 |
url |
https://hal.archives-ouvertes.fr/hal-00295880 https://hal.archives-ouvertes.fr/hal-00295880/document https://hal.archives-ouvertes.fr/hal-00295880/file/acp-6-1201-2006.pdf |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic Antarctica |
genre_facet |
Antarc* Antarctic Antarctica |
op_source |
ISSN: 1680-7316 EISSN: 1680-7324 Atmospheric Chemistry and Physics https://hal.archives-ouvertes.fr/hal-00295880 Atmospheric Chemistry and Physics, European Geosciences Union, 2006, 6 (5), pp.1201-1219 |
op_relation |
hal-00295880 https://hal.archives-ouvertes.fr/hal-00295880 https://hal.archives-ouvertes.fr/hal-00295880/document https://hal.archives-ouvertes.fr/hal-00295880/file/acp-6-1201-2006.pdf |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1766025233781751808 |