11 Years of Rayleigh Lidar Observations of Gravity Wave Activity Above the Southern Tip of South America
Gravity wave (GW) activity is analyzed using temperature (T) data retrieved from a Rayleigh light detection and ranging (lidar) at Río Gallegos, Argentina (51.6°S, 69.3°W). GW characteristics are derived from 302 nights of observations providing more than 1,018 hr of high-resolution lidar data betwe...
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ftconicet:oai:ri.conicet.gov.ar:11336/117991 2023-10-09T21:47:15+02:00 11 Years of Rayleigh Lidar Observations of Gravity Wave Activity Above the Southern Tip of South America Llamedo Soria, Pablo Martin Salvador, Jacobo Omar de la Torre, Alejandro Quiroga, Jonathan Javier Alexander, Pedro Manfredo Hierro, Rodrigo Federico Schmidt, T. Pazmiño, A. Quel, Eduardo Jaime application/pdf http://hdl.handle.net/11336/117991 eng eng American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1029/2018JD028673 info:eu-repo/semantics/altIdentifier/url/https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2018JD028673 http://hdl.handle.net/11336/117991 Llamedo Soria, Pablo Martin; Salvador, Jacobo Omar; de la Torre, Alejandro; Quiroga, Jonathan Javier; Alexander, Pedro Manfredo; et al.; 11 Years of Rayleigh Lidar Observations of Gravity Wave Activity Above the Southern Tip of South America; American Geophysical Union; Journal of Geophysical Research: Atmospheres; 124; 2; 1-2019; 451-467 2169-897X 2169-8996 CONICET Digital CONICET info:eu-repo/semantics/restrictedAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ GPS RO SABER GRAVITY WAVES ACTIVITY LIDAR POLAR VORTEX SOUTHEN SOUTH AMERICA STRATOSPHERE https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion ftconicet https://doi.org/10.1029/2018JD028673 2023-09-24T20:24:56Z Gravity wave (GW) activity is analyzed using temperature (T) data retrieved from a Rayleigh light detection and ranging (lidar) at Río Gallegos, Argentina (51.6°S, 69.3°W). GW characteristics are derived from 302 nights of observations providing more than 1,018 hr of high-resolution lidar data between 20- and 56-km height from August 2005 to December 2015. T measurements are performed by a Differential Absorption Lidar instrument. This lidar was the southernmost outside Antarctica until the end of 2017. Río Gallegos is an exceptional place to observe large amplitude GW. Every lidar measurement is classified according to its relative position to the polar vortex. The lidar measurements are compared with collocated Sounding of the Atmosphere using Broadband Emission Radiometry and Global Positioning System-Radio Occultation data. The different instruments show different windows of the GW spectrum, providing complementary observations. In general, the geometric mean of the specific GW potential energy (PE) is larger during winter and spring than during summer and autumn. The largest geometric mean of PE is found inside the vortex and decreases monotonically at its edge, outside it and when there is no vortex. The same behavior is observed with satellite data. On average, it can be seen that lidar observations provide larger PE values than limb sounding measurements. From a Morlet continuous wavelet transform analysis, three distinct modes are captured from Sounding of the Atmosphere using Broadband Emission Radiometry and from Global Positioning System-Radio Occultation data at the upper and lower stratosphere, respectively. In particular, a systematic 3.5- to 4-year oscillation, possibly related to El Niño–Southern Oscillation is observed. Fil: Llamedo Soria, Pablo Martin. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Austral. Facultad de Ingeniería. Laboratorio de Investigación Desarrollo y Transferencia - Comisión de Investigaciones Científicas de la Provincia de Buenos ... Article in Journal/Newspaper Antarc* Antarctica CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Austral Argentina Pablo ENVELOPE(-63.717,-63.717,-64.283,-64.283) Gallegos ENVELOPE(-67.150,-67.150,-68.133,-68.133) Journal of Geophysical Research: Atmospheres 124 2 451 467 |
institution |
Open Polar |
collection |
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
op_collection_id |
ftconicet |
language |
English |
topic |
GPS RO SABER GRAVITY WAVES ACTIVITY LIDAR POLAR VORTEX SOUTHEN SOUTH AMERICA STRATOSPHERE https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
spellingShingle |
GPS RO SABER GRAVITY WAVES ACTIVITY LIDAR POLAR VORTEX SOUTHEN SOUTH AMERICA STRATOSPHERE https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 Llamedo Soria, Pablo Martin Salvador, Jacobo Omar de la Torre, Alejandro Quiroga, Jonathan Javier Alexander, Pedro Manfredo Hierro, Rodrigo Federico Schmidt, T. Pazmiño, A. Quel, Eduardo Jaime 11 Years of Rayleigh Lidar Observations of Gravity Wave Activity Above the Southern Tip of South America |
topic_facet |
GPS RO SABER GRAVITY WAVES ACTIVITY LIDAR POLAR VORTEX SOUTHEN SOUTH AMERICA STRATOSPHERE https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
description |
Gravity wave (GW) activity is analyzed using temperature (T) data retrieved from a Rayleigh light detection and ranging (lidar) at Río Gallegos, Argentina (51.6°S, 69.3°W). GW characteristics are derived from 302 nights of observations providing more than 1,018 hr of high-resolution lidar data between 20- and 56-km height from August 2005 to December 2015. T measurements are performed by a Differential Absorption Lidar instrument. This lidar was the southernmost outside Antarctica until the end of 2017. Río Gallegos is an exceptional place to observe large amplitude GW. Every lidar measurement is classified according to its relative position to the polar vortex. The lidar measurements are compared with collocated Sounding of the Atmosphere using Broadband Emission Radiometry and Global Positioning System-Radio Occultation data. The different instruments show different windows of the GW spectrum, providing complementary observations. In general, the geometric mean of the specific GW potential energy (PE) is larger during winter and spring than during summer and autumn. The largest geometric mean of PE is found inside the vortex and decreases monotonically at its edge, outside it and when there is no vortex. The same behavior is observed with satellite data. On average, it can be seen that lidar observations provide larger PE values than limb sounding measurements. From a Morlet continuous wavelet transform analysis, three distinct modes are captured from Sounding of the Atmosphere using Broadband Emission Radiometry and from Global Positioning System-Radio Occultation data at the upper and lower stratosphere, respectively. In particular, a systematic 3.5- to 4-year oscillation, possibly related to El Niño–Southern Oscillation is observed. Fil: Llamedo Soria, Pablo Martin. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Austral. Facultad de Ingeniería. Laboratorio de Investigación Desarrollo y Transferencia - Comisión de Investigaciones Científicas de la Provincia de Buenos ... |
format |
Article in Journal/Newspaper |
author |
Llamedo Soria, Pablo Martin Salvador, Jacobo Omar de la Torre, Alejandro Quiroga, Jonathan Javier Alexander, Pedro Manfredo Hierro, Rodrigo Federico Schmidt, T. Pazmiño, A. Quel, Eduardo Jaime |
author_facet |
Llamedo Soria, Pablo Martin Salvador, Jacobo Omar de la Torre, Alejandro Quiroga, Jonathan Javier Alexander, Pedro Manfredo Hierro, Rodrigo Federico Schmidt, T. Pazmiño, A. Quel, Eduardo Jaime |
author_sort |
Llamedo Soria, Pablo Martin |
title |
11 Years of Rayleigh Lidar Observations of Gravity Wave Activity Above the Southern Tip of South America |
title_short |
11 Years of Rayleigh Lidar Observations of Gravity Wave Activity Above the Southern Tip of South America |
title_full |
11 Years of Rayleigh Lidar Observations of Gravity Wave Activity Above the Southern Tip of South America |
title_fullStr |
11 Years of Rayleigh Lidar Observations of Gravity Wave Activity Above the Southern Tip of South America |
title_full_unstemmed |
11 Years of Rayleigh Lidar Observations of Gravity Wave Activity Above the Southern Tip of South America |
title_sort |
11 years of rayleigh lidar observations of gravity wave activity above the southern tip of south america |
publisher |
American Geophysical Union |
url |
http://hdl.handle.net/11336/117991 |
long_lat |
ENVELOPE(-63.717,-63.717,-64.283,-64.283) ENVELOPE(-67.150,-67.150,-68.133,-68.133) |
geographic |
Austral Argentina Pablo Gallegos |
geographic_facet |
Austral Argentina Pablo Gallegos |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2018JD028673 info:eu-repo/semantics/altIdentifier/url/https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2018JD028673 http://hdl.handle.net/11336/117991 Llamedo Soria, Pablo Martin; Salvador, Jacobo Omar; de la Torre, Alejandro; Quiroga, Jonathan Javier; Alexander, Pedro Manfredo; et al.; 11 Years of Rayleigh Lidar Observations of Gravity Wave Activity Above the Southern Tip of South America; American Geophysical Union; Journal of Geophysical Research: Atmospheres; 124; 2; 1-2019; 451-467 2169-897X 2169-8996 CONICET Digital CONICET |
op_rights |
info:eu-repo/semantics/restrictedAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
op_doi |
https://doi.org/10.1029/2018JD028673 |
container_title |
Journal of Geophysical Research: Atmospheres |
container_volume |
124 |
container_issue |
2 |
container_start_page |
451 |
op_container_end_page |
467 |
_version_ |
1779310233590431744 |