OH(6-2) spectra and rotational temperature measurements at Davis, Antarctica
International audience The OH(6-2) band was monitored during 1990 at Davis, Antarctica (68.6 ° S, 78.0 ° E) using a Czerny-Turner scanning spectrometer. Spectra obtained with a 0.15-nm bandwidth and wavelength steps of 0.005 nm have been recorded in an attempt to isolate auroral features. This has e...
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ftccsdartic:oai:HAL:hal-00316347v1 2023-05-15T13:38:05+02:00 OH(6-2) spectra and rotational temperature measurements at Davis, Antarctica Greet, P. A. French, W. J. R. Burns, G. B. Williams, P. F. B. Lowe, R. P. Finlayson, K. Australian Antarctic Division (AAD) Australian Government, Department of the Environment and Energy Institute of Antarctic and Southern Ocean Studies (IASOS) University of Tasmania Hobart, Australia (UTAS) Institute for Space and Terrestrial Science University of Western Ontario (UWO) 1998 https://hal.archives-ouvertes.fr/hal-00316347 https://hal.archives-ouvertes.fr/hal-00316347/document https://hal.archives-ouvertes.fr/hal-00316347/file/angeo-16-77-1998.pdf en eng HAL CCSD European Geosciences Union hal-00316347 https://hal.archives-ouvertes.fr/hal-00316347 https://hal.archives-ouvertes.fr/hal-00316347/document https://hal.archives-ouvertes.fr/hal-00316347/file/angeo-16-77-1998.pdf info:eu-repo/semantics/OpenAccess ISSN: 0992-7689 EISSN: 1432-0576 Annales Geophysicae https://hal.archives-ouvertes.fr/hal-00316347 Annales Geophysicae, European Geosciences Union, 1998, 16 (1), pp.77-89 [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU]Sciences of the Universe [physics]/Earth Sciences info:eu-repo/semantics/article Journal articles 1998 ftccsdartic 2021-06-06T00:39:48Z International audience The OH(6-2) band was monitored during 1990 at Davis, Antarctica (68.6 ° S, 78.0 ° E) using a Czerny-Turner scanning spectrometer. Spectra obtained with a 0.15-nm bandwidth and wavelength steps of 0.005 nm have been recorded in an attempt to isolate auroral features. This has enabled detailed study of weak features in the region ? 837.5?855.5 nm. These weak features can contribute to the apparent intensity of P-branch lines and to the background. Their presence is allowed for in our calculation of rotational temperature, but the P 1 (3) line is excluded because of significant contamination. An average temperature of 221±2 K is obtained from a selected data set of 104 spectra. The mid-winter average temperature, for the months of May, June and July, is 224±2 K, which is consistent with the 1986 CIRA model values for mid-winter at this height and latitude, but this result is dependent on the choice of transition probabilities. Preliminary assessments of seasonal and diurnal variations in rotational temperature and intensity are presented. Article in Journal/Newspaper Antarc* Antarctica Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
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 [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
spellingShingle |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU]Sciences of the Universe [physics]/Earth Sciences Greet, P. A. French, W. J. R. Burns, G. B. Williams, P. F. B. Lowe, R. P. Finlayson, K. OH(6-2) spectra and rotational temperature measurements at Davis, Antarctica |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
description |
International audience The OH(6-2) band was monitored during 1990 at Davis, Antarctica (68.6 ° S, 78.0 ° E) using a Czerny-Turner scanning spectrometer. Spectra obtained with a 0.15-nm bandwidth and wavelength steps of 0.005 nm have been recorded in an attempt to isolate auroral features. This has enabled detailed study of weak features in the region ? 837.5?855.5 nm. These weak features can contribute to the apparent intensity of P-branch lines and to the background. Their presence is allowed for in our calculation of rotational temperature, but the P 1 (3) line is excluded because of significant contamination. An average temperature of 221±2 K is obtained from a selected data set of 104 spectra. The mid-winter average temperature, for the months of May, June and July, is 224±2 K, which is consistent with the 1986 CIRA model values for mid-winter at this height and latitude, but this result is dependent on the choice of transition probabilities. Preliminary assessments of seasonal and diurnal variations in rotational temperature and intensity are presented. |
author2 |
Australian Antarctic Division (AAD) Australian Government, Department of the Environment and Energy Institute of Antarctic and Southern Ocean Studies (IASOS) University of Tasmania Hobart, Australia (UTAS) Institute for Space and Terrestrial Science University of Western Ontario (UWO) |
format |
Article in Journal/Newspaper |
author |
Greet, P. A. French, W. J. R. Burns, G. B. Williams, P. F. B. Lowe, R. P. Finlayson, K. |
author_facet |
Greet, P. A. French, W. J. R. Burns, G. B. Williams, P. F. B. Lowe, R. P. Finlayson, K. |
author_sort |
Greet, P. A. |
title |
OH(6-2) spectra and rotational temperature measurements at Davis, Antarctica |
title_short |
OH(6-2) spectra and rotational temperature measurements at Davis, Antarctica |
title_full |
OH(6-2) spectra and rotational temperature measurements at Davis, Antarctica |
title_fullStr |
OH(6-2) spectra and rotational temperature measurements at Davis, Antarctica |
title_full_unstemmed |
OH(6-2) spectra and rotational temperature measurements at Davis, Antarctica |
title_sort |
oh(6-2) spectra and rotational temperature measurements at davis, antarctica |
publisher |
HAL CCSD |
publishDate |
1998 |
url |
https://hal.archives-ouvertes.fr/hal-00316347 https://hal.archives-ouvertes.fr/hal-00316347/document https://hal.archives-ouvertes.fr/hal-00316347/file/angeo-16-77-1998.pdf |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
ISSN: 0992-7689 EISSN: 1432-0576 Annales Geophysicae https://hal.archives-ouvertes.fr/hal-00316347 Annales Geophysicae, European Geosciences Union, 1998, 16 (1), pp.77-89 |
op_relation |
hal-00316347 https://hal.archives-ouvertes.fr/hal-00316347 https://hal.archives-ouvertes.fr/hal-00316347/document https://hal.archives-ouvertes.fr/hal-00316347/file/angeo-16-77-1998.pdf |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1766101344725237760 |