First year of Rayleigh lidar measurements of middle atmosphere temperatures above Davis, Antarctica
We report,the first high spatial resolution measurements of the annual variation of temperatures in the stratosphere and lower mesosphere obtained using lidar from a site near the Antarctic Circle. The observations were made using a zenith-oriented Rayleigh backscatter lidar on 77 days between Febru...
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ftunivadelaidedl:oai:digital.library.adelaide.edu.au:2440/18084 2023-05-15T13:34:44+02:00 First year of Rayleigh lidar measurements of middle atmosphere temperatures above Davis, Antarctica Klekociuk, A. Lambert, M. Vincent, R. Dowdy, A. Clemesha, B. Swenson, G. 2003 http://hdl.handle.net/2440/18084 https://doi.org/10.1016/S0273-1177(03)00421-6 en eng Elsevier Science Bv Advances in Space Research, 2003; 32(5):771-776 0273-1177 http://hdl.handle.net/2440/18084 doi:10.1016/S0273-1177(03)00421-6 Klekociuk, A. [0000-0003-3335-0034] Vincent, R. [0000-0001-6559-6544] Journal article 2003 ftunivadelaidedl https://doi.org/10.1016/S0273-1177(03)00421-6 2023-02-06T06:58:54Z We report,the first high spatial resolution measurements of the annual variation of temperatures in the stratosphere and lower mesosphere obtained using lidar from a site near the Antarctic Circle. The observations were made using a zenith-oriented Rayleigh backscatter lidar on 77 days between February 2001 and March 2002 at Davis, Antarctica (68.6°S, 78.0°E). Daily average temperature profiles with 1km vertical resolution were retrieved using the standard Rayleigh inversion method. The lidar temperatures were validated through comparison with a variety of observational and model data which included radiosonde measurements, satellite profiles, and meterorological analyses at various altitudes between approximately 30km (the top of the stratospheric aerosol layer) and 60km. Comparison of the lidar temperatures with the MSISE-90 model revealed some significant differences. Between the stratopause and the upper limit of the measurements (65km), monthly average temperatures from March to June and during September were warmer than MSISE-90 by up to 20K. Comparison with previous lidar measurements at South Pole (Pan et al., 2002) and McMurdo (Di Donfrancesco et al., 1996) suggests that stratopause region temperatures near midwinter over Antarctica may be more uniform than predicted by the MSIS model. Between 30km altitude and the stratopause, average temperatures from December to March and during July were cooler than the model (by an average of 5K). The October and November averages were warmer than the model (by up to 15K) below approximately 40km, and cooler than the model (by up to 10K) towards the stratopause. Temperature fluctuations associated with planetary wave activity were observed during late autumn (10K amplitude) and spring (up to 25K amplitude). The spring anomaly coincided with the development of a dominant zonal wavenumber 1 disturbance in the mid-stratosphere temperature field that was quasi-stationary in longitude near Davis. This feature appeared to have a vertical wavelength on the order of ... Article in Journal/Newspaper Antarc* Antarctic Antarctica South pole South pole The University of Adelaide: Digital Library Antarctic Midwinter ENVELOPE(139.931,139.931,-66.690,-66.690) South Pole The Antarctic Advances in Space Research 32 5 771 776 |
institution |
Open Polar |
collection |
The University of Adelaide: Digital Library |
op_collection_id |
ftunivadelaidedl |
language |
English |
description |
We report,the first high spatial resolution measurements of the annual variation of temperatures in the stratosphere and lower mesosphere obtained using lidar from a site near the Antarctic Circle. The observations were made using a zenith-oriented Rayleigh backscatter lidar on 77 days between February 2001 and March 2002 at Davis, Antarctica (68.6°S, 78.0°E). Daily average temperature profiles with 1km vertical resolution were retrieved using the standard Rayleigh inversion method. The lidar temperatures were validated through comparison with a variety of observational and model data which included radiosonde measurements, satellite profiles, and meterorological analyses at various altitudes between approximately 30km (the top of the stratospheric aerosol layer) and 60km. Comparison of the lidar temperatures with the MSISE-90 model revealed some significant differences. Between the stratopause and the upper limit of the measurements (65km), monthly average temperatures from March to June and during September were warmer than MSISE-90 by up to 20K. Comparison with previous lidar measurements at South Pole (Pan et al., 2002) and McMurdo (Di Donfrancesco et al., 1996) suggests that stratopause region temperatures near midwinter over Antarctica may be more uniform than predicted by the MSIS model. Between 30km altitude and the stratopause, average temperatures from December to March and during July were cooler than the model (by an average of 5K). The October and November averages were warmer than the model (by up to 15K) below approximately 40km, and cooler than the model (by up to 10K) towards the stratopause. Temperature fluctuations associated with planetary wave activity were observed during late autumn (10K amplitude) and spring (up to 25K amplitude). The spring anomaly coincided with the development of a dominant zonal wavenumber 1 disturbance in the mid-stratosphere temperature field that was quasi-stationary in longitude near Davis. This feature appeared to have a vertical wavelength on the order of ... |
author2 |
Clemesha, B. Swenson, G. |
format |
Article in Journal/Newspaper |
author |
Klekociuk, A. Lambert, M. Vincent, R. Dowdy, A. |
spellingShingle |
Klekociuk, A. Lambert, M. Vincent, R. Dowdy, A. First year of Rayleigh lidar measurements of middle atmosphere temperatures above Davis, Antarctica |
author_facet |
Klekociuk, A. Lambert, M. Vincent, R. Dowdy, A. |
author_sort |
Klekociuk, A. |
title |
First year of Rayleigh lidar measurements of middle atmosphere temperatures above Davis, Antarctica |
title_short |
First year of Rayleigh lidar measurements of middle atmosphere temperatures above Davis, Antarctica |
title_full |
First year of Rayleigh lidar measurements of middle atmosphere temperatures above Davis, Antarctica |
title_fullStr |
First year of Rayleigh lidar measurements of middle atmosphere temperatures above Davis, Antarctica |
title_full_unstemmed |
First year of Rayleigh lidar measurements of middle atmosphere temperatures above Davis, Antarctica |
title_sort |
first year of rayleigh lidar measurements of middle atmosphere temperatures above davis, antarctica |
publisher |
Elsevier Science Bv |
publishDate |
2003 |
url |
http://hdl.handle.net/2440/18084 https://doi.org/10.1016/S0273-1177(03)00421-6 |
long_lat |
ENVELOPE(139.931,139.931,-66.690,-66.690) |
geographic |
Antarctic Midwinter South Pole The Antarctic |
geographic_facet |
Antarctic Midwinter South Pole The Antarctic |
genre |
Antarc* Antarctic Antarctica South pole South pole |
genre_facet |
Antarc* Antarctic Antarctica South pole South pole |
op_relation |
Advances in Space Research, 2003; 32(5):771-776 0273-1177 http://hdl.handle.net/2440/18084 doi:10.1016/S0273-1177(03)00421-6 Klekociuk, A. [0000-0003-3335-0034] Vincent, R. [0000-0001-6559-6544] |
op_doi |
https://doi.org/10.1016/S0273-1177(03)00421-6 |
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Advances in Space Research |
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32 |
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5 |
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771 |
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776 |
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1766056684123324416 |