Statistical properties of nonlinear wave signatures in OH and O2 airglow brightness data observed at lower midlatitudes

Among 2187 nights of airglow observations of the OH(6-2) and O2b(0-1) bands from Argentina (mainly from El Leoncito, 32°S 69°W), 132 show airglow brightness jumps (ABJs) of short duration (16min median). ABJs are supposed to be related to mesospheric bores or similar nonlinear waves. Several occurre...

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Detalles Bibliográficos
Publicado: 2010
Materias:
Ducting conditions
Mesopause region airglow
Mesospheric bores
Solitary waves
Argentina
Ducting
Mesopause region
Midlatitudes
Nonlinear waves
Occurrence pattern
Seasonal distributions
Short durations
Solitary wave
Statistical properties
Waves
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_13646826_v72_n7-8_p588_Scheer
http://hdl.handle.net/20.500.12110/paper_13646826_v72_n7-8_p588_Scheer
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_13646826_v72_n7-8_p588_Scheer
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spelling paper:paper_13646826_v72_n7-8_p588_Scheer2023-06-08T16:11:57Z Statistical properties of nonlinear wave signatures in OH and O2 airglow brightness data observed at lower midlatitudes Ducting conditions Mesopause region airglow Mesospheric bores Solitary waves Argentina Ducting Mesopause region Midlatitudes Nonlinear waves Occurrence pattern Seasonal distributions Short durations Solitary wave Statistical properties Waves Among 2187 nights of airglow observations of the OH(6-2) and O2b(0-1) bands from Argentina (mainly from El Leoncito, 32°S 69°W), 132 show airglow brightness jumps (ABJs) of short duration (16min median). ABJs are supposed to be related to mesospheric bores or similar nonlinear waves. Several occurrence patterns were identified, which a successful explanation must take into account. ABJs occur preferably in the OH layer at 87km, and are less likely in the O2 layer at 95km, maybe because ducts prefer lower altitudes. The seasonal distribution of nights when ABJs are observed only in the OH layer clearly shows a winter maximum centered around solstice, and equinox minima. In contrast, the seasonal distribution of ABJ nights in O2 is flat. Most ABJs simultaneously present in OH and O2 show anticorrelated variation between both layers. ABJ nights tend to occur in clusters lasting several days, which probably reflects duct lifetime. © 2010 Elsevier Ltd. 2010 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_13646826_v72_n7-8_p588_Scheer http://hdl.handle.net/20.500.12110/paper_13646826_v72_n7-8_p588_Scheer
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Ducting conditions
Mesopause region airglow
Mesospheric bores
Solitary waves
Argentina
Ducting
Mesopause region
Midlatitudes
Nonlinear waves
Occurrence pattern
Seasonal distributions
Short durations
Solitary wave
Statistical properties
Waves
spellingShingle Ducting conditions
Mesopause region airglow
Mesospheric bores
Solitary waves
Argentina
Ducting
Mesopause region
Midlatitudes
Nonlinear waves
Occurrence pattern
Seasonal distributions
Short durations
Solitary wave
Statistical properties
Waves
Statistical properties of nonlinear wave signatures in OH and O2 airglow brightness data observed at lower midlatitudes
topic_facet Ducting conditions
Mesopause region airglow
Mesospheric bores
Solitary waves
Argentina
Ducting
Mesopause region
Midlatitudes
Nonlinear waves
Occurrence pattern
Seasonal distributions
Short durations
Solitary wave
Statistical properties
Waves
description Among 2187 nights of airglow observations of the OH(6-2) and O2b(0-1) bands from Argentina (mainly from El Leoncito, 32°S 69°W), 132 show airglow brightness jumps (ABJs) of short duration (16min median). ABJs are supposed to be related to mesospheric bores or similar nonlinear waves. Several occurrence patterns were identified, which a successful explanation must take into account. ABJs occur preferably in the OH layer at 87km, and are less likely in the O2 layer at 95km, maybe because ducts prefer lower altitudes. The seasonal distribution of nights when ABJs are observed only in the OH layer clearly shows a winter maximum centered around solstice, and equinox minima. In contrast, the seasonal distribution of ABJ nights in O2 is flat. Most ABJs simultaneously present in OH and O2 show anticorrelated variation between both layers. ABJ nights tend to occur in clusters lasting several days, which probably reflects duct lifetime. © 2010 Elsevier Ltd.
title Statistical properties of nonlinear wave signatures in OH and O2 airglow brightness data observed at lower midlatitudes
title_short Statistical properties of nonlinear wave signatures in OH and O2 airglow brightness data observed at lower midlatitudes
title_full Statistical properties of nonlinear wave signatures in OH and O2 airglow brightness data observed at lower midlatitudes
title_fullStr Statistical properties of nonlinear wave signatures in OH and O2 airglow brightness data observed at lower midlatitudes
title_full_unstemmed Statistical properties of nonlinear wave signatures in OH and O2 airglow brightness data observed at lower midlatitudes
title_sort statistical properties of nonlinear wave signatures in oh and o2 airglow brightness data observed at lower midlatitudes
publishDate 2010
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_13646826_v72_n7-8_p588_Scheer
http://hdl.handle.net/20.500.12110/paper_13646826_v72_n7-8_p588_Scheer
_version_ 1768546600324431872

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