Lidar observations of polar mesospheric clouds at South Pole: Seasonal variations

Polar mesospheric clouds (PMCs) were observed above the geographic South Pole by an Fe Boltzmann temperature lidar from 11 Dec 99 to 24 Feb 00. During this 76-day period 297 h of observations were made on 33 different days and PMCs were detected 66.5% of the time. The mean PMC peak backscatter ratio...

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Bibliographic Details
Published in:Geophysical Research Letters
Main Authors: Chu, Xinzhao, Gardner, Chester S., Papen, George
Format: Article in Journal/Newspaper
Language:English
Published: American Geophysical Union 2001
Subjects:
Lidar
South Pole
North Pole
South pole
Online Access:http://hdl.handle.net/2142/73142
https://doi.org/10.1029/2000GL012524
id ftunivillidea:oai:www.ideals.illinois.edu:2142/73142
record_format openpolar
spelling ftunivillidea:oai:www.ideals.illinois.edu:2142/73142 2024-10-13T14:09:37+00:00 Lidar observations of polar mesospheric clouds at South Pole: Seasonal variations Chu, Xinzhao Gardner, Chester S. Papen, George South Pole 2001-04-01 http://hdl.handle.net/2142/73142 https://doi.org/10.1029/2000GL012524 en eng American Geophysical Union https://doi.org/10.1029/2000GL012524 http://hdl.handle.net/2142/73142 Copyright 2001 American Geophysical Union Lidar South Pole Article text 2001 ftunivillidea https://doi.org/10.1029/2000GL012524 2024-10-01T12:57:49Z Polar mesospheric clouds (PMCs) were observed above the geographic South Pole by an Fe Boltzmann temperature lidar from 11 Dec 99 to 24 Feb 00. During this 76-day period 297 h of observations were made on 33 different days and PMCs were detected 66.5% of the time. The mean PMC peak backscatter ratio, peak volume backscatter coefficient, total backscatter coefficient, layer centroid altitude, and layer rms width are 50.59 q- 2.33, 2.70 q- 0.12x10 -9 m-•sr -•, 3.61 q- 0.22x10 -6 sr -•, 85.49 q- 0.09 km, and 0.71 q- 0.03 km, respectively. The PMCs are highest near summer solstice when upwelling over the pole is strongest. The altitudes are 2-4 km higher than that typically observed elsewhere, including the North Pole. After solstice the mean altitudes decreases by about 64 m/day as the upwelling weakens. Submitted by Sarah Shreeves (sshreeve@illinois.edu) on 2015-01-30T15:46:20Z No. of bitstreams: 1 Chu2001.pdf: 523142 bytes, checksum: 20b489a251fd84dfb572fb0fd66b4b2e (MD5) Made available in DSpace on 2015-01-30T15:46:20Z (GMT). No. of bitstreams: 1 Chu2001.pdf: 523142 bytes, checksum: 20b489a251fd84dfb572fb0fd66b4b2e (MD5) Previous issue date: 2001-04-01 Open Article in Journal/Newspaper North Pole South pole University of Illinois at Urbana-Champaign: IDEALS (Illinois Digital Environment for Access to Learning and Scholarship) South Pole North Pole Geophysical Research Letters 28 7 1203 1206
institution Open Polar
collection University of Illinois at Urbana-Champaign: IDEALS (Illinois Digital Environment for Access to Learning and Scholarship)
op_collection_id ftunivillidea
language English
topic Lidar
South Pole
spellingShingle Lidar
South Pole
Chu, Xinzhao
Gardner, Chester S.
Papen, George
Lidar observations of polar mesospheric clouds at South Pole: Seasonal variations
topic_facet Lidar
South Pole
description Polar mesospheric clouds (PMCs) were observed above the geographic South Pole by an Fe Boltzmann temperature lidar from 11 Dec 99 to 24 Feb 00. During this 76-day period 297 h of observations were made on 33 different days and PMCs were detected 66.5% of the time. The mean PMC peak backscatter ratio, peak volume backscatter coefficient, total backscatter coefficient, layer centroid altitude, and layer rms width are 50.59 q- 2.33, 2.70 q- 0.12x10 -9 m-•sr -•, 3.61 q- 0.22x10 -6 sr -•, 85.49 q- 0.09 km, and 0.71 q- 0.03 km, respectively. The PMCs are highest near summer solstice when upwelling over the pole is strongest. The altitudes are 2-4 km higher than that typically observed elsewhere, including the North Pole. After solstice the mean altitudes decreases by about 64 m/day as the upwelling weakens. Submitted by Sarah Shreeves (sshreeve@illinois.edu) on 2015-01-30T15:46:20Z No. of bitstreams: 1 Chu2001.pdf: 523142 bytes, checksum: 20b489a251fd84dfb572fb0fd66b4b2e (MD5) Made available in DSpace on 2015-01-30T15:46:20Z (GMT). No. of bitstreams: 1 Chu2001.pdf: 523142 bytes, checksum: 20b489a251fd84dfb572fb0fd66b4b2e (MD5) Previous issue date: 2001-04-01 Open
format Article in Journal/Newspaper
author Chu, Xinzhao
Gardner, Chester S.
Papen, George
author_facet Chu, Xinzhao
Gardner, Chester S.
Papen, George
author_sort Chu, Xinzhao
title Lidar observations of polar mesospheric clouds at South Pole: Seasonal variations
title_short Lidar observations of polar mesospheric clouds at South Pole: Seasonal variations
title_full Lidar observations of polar mesospheric clouds at South Pole: Seasonal variations
title_fullStr Lidar observations of polar mesospheric clouds at South Pole: Seasonal variations
title_full_unstemmed Lidar observations of polar mesospheric clouds at South Pole: Seasonal variations
title_sort lidar observations of polar mesospheric clouds at south pole: seasonal variations
publisher American Geophysical Union
publishDate 2001
url http://hdl.handle.net/2142/73142
https://doi.org/10.1029/2000GL012524
op_coverage South Pole
geographic South Pole
North Pole
geographic_facet South Pole
North Pole
genre North Pole
South pole
genre_facet North Pole
South pole
op_relation https://doi.org/10.1029/2000GL012524
http://hdl.handle.net/2142/73142
op_rights Copyright 2001 American Geophysical Union
op_doi https://doi.org/10.1029/2000GL012524
container_title Geophysical Research Letters
container_volume 28
container_issue 7
container_start_page 1203
op_container_end_page 1206
_version_ 1812816654627766272

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