Articles | Volume 37, issue 6
https://doi.org/10.5194/angeo-37-1049-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/angeo-37-1049-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Regular paper
| 
21 Nov 2019
Regular paper |
| 21 Nov 2019
| 21 Nov 2019
Investigation of the behavior of the atmospheric dynamics during occurrences of the ozone hole's secondary effect in southern Brazil
Gabriela Dornelles Bittencourt
CORRESPONDING AUTHOR
Federal University of Santa Maria, Santa Maria – RS,
Brazil
Damaris Kirsch Pinheiro
Federal University of Santa Maria, Santa Maria – RS,
Brazil
José Valentin Bageston
National Institute for Space Research, Southern Regional
Space Research Center, Santa Maria – RS, Brazil
Hassan Bencherif
University of Reunion Island, LACy, UMR 8105, Reunion, France
School of Chemistry and Physics, University of KwaZulu-Natal,
Westville, Durban, South Africa
Luis Angelo Steffenel
Centre de Recherche en STIC, Université de Reims
Champagne-Ardenne, Reims, France
Lucas Vaz Peres
Federal University of Western Pará, Santarém – PA, Brazil
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Bibiana Lopes, Damaris Kirsch Pinheiro, Hassan Bencherif, Gabriela Dornelles Bittencourt, Lucas Vaz Peres, Jean-Maurice Cadet, Thierry Portafaix, and Nathalie Tissot Boiaski
EGUsphere, https://doi.org/10.5194/egusphere-2023-1474, https://doi.org/10.5194/egusphere-2023-1474, 2023
Preprint archived
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This is a study of the climatology and behavior of UV radiation on the surface during events of secondary effects of the Antarctic ozone hole over south of Brazil. Considering all implications of excess exposure to UV radiation on the surface on human health it is important to know how much radiation the population is being exposed to during those events. Results showed that for each 1 % decrease in the ozone total column, the UV index tends to increase by 4 % in the region of study.
Gabriela Dornelles Bittencourt, Damaris Kirsch Pinheiro, Hassan Bencherif, Lucas Vaz Peres, Nelson Begue, José Valentin Bageston, Douglas Lima de Bem, Vagner Anabor, and Luiz Angelo Steffenel
EGUsphere, https://doi.org/10.5194/egusphere-2023-1471, https://doi.org/10.5194/egusphere-2023-1471, 2023
Preprint archived
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The study examines ozone depletions at mid-latitudes in Brazil during austral spring Antarctic Ozone Hole influence events. The methodology applied used data from the total column ozone, vertical profile of the atmosphere, and reanalysis data to analyze the atmospheric dynamics. The main motivation of this work is to show how this important trace gas dynamically behaves in the atmosphere in the active period of the Antarctic Ozone Hole in regions of medium latitudes.
Gabriela Dornelles Bittencourt, Damaris Kirsch Pinheiro, Hassan Bencherif, Nelson Begue, Lucas Vaz Peres, José Valentin Bageston, Francisco Reimundo da Silva, and Douglas Lima de Bem
EGUsphere, https://doi.org/10.5194/egusphere-2023-1664, https://doi.org/10.5194/egusphere-2023-1664, 2023
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The study examines the behavior of ozone at equatorial and subtropical latitudes in South America, in a multi-instrumental analysis. The methodology applied used ozonesondes (SHADOZ/NASA) and satellite data (TIMED/SABER), in addition analysis with ground-based and satellites instruments, allowing a more in-depth study at both latitudes. The main motivation is to understand how latitudinal differences in the observation of ozone content can interfere with the behavior of this trace gas.
Gabriela Dornelles Bittencourt, Caroline Bresciani, Damaris Kirsch Pinheiro, José Valentin Bageston, Nelson Jorge Schuch, Hassan Bencherif, Neusa Paes Leme, and Lucas Vaz Peres
Ann. Geophys., 36, 415–424, https://doi.org/10.5194/angeo-36-415-2018, https://doi.org/10.5194/angeo-36-415-2018, 2018
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Ozone-poor air mass can be released and leave through the Antarctic ozone hole, thus reaching midlatitude regions. The objective of this study is to show how tropospheric and stratospheric dynamics behaved during the event. The ozone-poor air mass began to operate in the region on 20 October 2016. A reduction of ozone content of approximately 23 % was observed in relation to the climatology average. The advance of the ozone-poor air mass caused intense reductions in total ozone content.
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Ann. Geophys., 36, 405–413, https://doi.org/10.5194/angeo-36-405-2018, https://doi.org/10.5194/angeo-36-405-2018, 2018
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This paper investigates the passage of the ozone secondary effect (OSE) over southern Brazil and Uruguay in October 2016 by using multi-instrumental data, i.e. ozonesonde, satellites and ground-based instruments, and the large OSE influence on the ozone concentration and on the temperature was shown.
Gabriel Augusto Giongo, José Valentin Bageston, Paulo Prado Batista, Cristiano Max Wrasse, Gabriela Dornelles Bittencourt, Igo Paulino, Neusa Maria Paes Leme, David C. Fritts, Diego Janches, Wayne Hocking, and Nelson Jorge Schuch
Ann. Geophys., 36, 253–264, https://doi.org/10.5194/angeo-36-253-2018, https://doi.org/10.5194/angeo-36-253-2018, 2018
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This work presents four events of mesosphere fronts observed on King George Island, Antarctic Peninsula, in the year 2011. The atmospheric background environment was analyzed to investigate the propagation conditions for all cases. To investigate the sources for such cases, satellite images were used. In two cases, we found that strong tropospheric instabilities were potential sources, and in the other two cases, it was not possible to associate them with tropospheric sources.
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The eruption of the Hunga Tonga volcano in January 2022 released substantial amounts of aerosols, sulfur dioxide, and water vapor into the stratosphere. Satellite and ground instruments followed the displacement of the volcanic aerosol plume and its impact on ozone levels over the Indian Ocean. Ozone data reveal the presence of a persistent ozone mini-hole structure from 17 January to 22 January, with most ozone depletion occurring within the ozone layer at the location of the aerosol plume.
Nelson Bègue, Alexandre Baron, Gisèle Krysztofiak, Gwenaël Berthet, Hassan Bencherif, Corinna Kloss, Fabrice Jégou, Sergey Khaykin, Marion Ranaivombola, Tristan Millet, Thierry Portafaix, Valentin Duflot, Philippe Keckhut, Hélène Vérèmes, Guillaume Payen, Masha Kumar Sha, Pierre-François Coheur, Cathy Clerbaux, Michaël Sicard, Tetsu Sakai, Richard Querel, Ben Liley, Dan Smale, Isamu Morino, Osamu Ochino, Tomohiro Nagai, Penny Smale, and John Robinson
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This study treats on the transport of the biomass burning (BB) products, induced during the 2019–20 extreme extreme Australian bushfire events, over the Southwest Indian Ocean. The BB activity in eastern Africa, weak during the wet season, contributed to modulate the atmospheric composition over this region. The simultaneous presence of African and Australian BB products has been recorded at Reunion. This reveals the complex variability of the atmospheric compostion over the SWIO basin.
Bibiana Lopes, Damaris Kirsch Pinheiro, Hassan Bencherif, Gabriela Dornelles Bittencourt, Lucas Vaz Peres, Jean-Maurice Cadet, Thierry Portafaix, and Nathalie Tissot Boiaski
EGUsphere, https://doi.org/10.5194/egusphere-2023-1474, https://doi.org/10.5194/egusphere-2023-1474, 2023
Preprint archived
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This is a study of the climatology and behavior of UV radiation on the surface during events of secondary effects of the Antarctic ozone hole over south of Brazil. Considering all implications of excess exposure to UV radiation on the surface on human health it is important to know how much radiation the population is being exposed to during those events. Results showed that for each 1 % decrease in the ozone total column, the UV index tends to increase by 4 % in the region of study.
Gabriela Dornelles Bittencourt, Damaris Kirsch Pinheiro, Hassan Bencherif, Lucas Vaz Peres, Nelson Begue, José Valentin Bageston, Douglas Lima de Bem, Vagner Anabor, and Luiz Angelo Steffenel
EGUsphere, https://doi.org/10.5194/egusphere-2023-1471, https://doi.org/10.5194/egusphere-2023-1471, 2023
Preprint archived
Short summary
Short summary
The study examines ozone depletions at mid-latitudes in Brazil during austral spring Antarctic Ozone Hole influence events. The methodology applied used data from the total column ozone, vertical profile of the atmosphere, and reanalysis data to analyze the atmospheric dynamics. The main motivation of this work is to show how this important trace gas dynamically behaves in the atmosphere in the active period of the Antarctic Ozone Hole in regions of medium latitudes.
Gabriela Dornelles Bittencourt, Damaris Kirsch Pinheiro, Hassan Bencherif, Nelson Begue, Lucas Vaz Peres, José Valentin Bageston, Francisco Reimundo da Silva, and Douglas Lima de Bem
EGUsphere, https://doi.org/10.5194/egusphere-2023-1664, https://doi.org/10.5194/egusphere-2023-1664, 2023
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The study examines the behavior of ozone at equatorial and subtropical latitudes in South America, in a multi-instrumental analysis. The methodology applied used ozonesondes (SHADOZ/NASA) and satellite data (TIMED/SABER), in addition analysis with ground-based and satellites instruments, allowing a more in-depth study at both latitudes. The main motivation is to understand how latitudinal differences in the observation of ozone content can interfere with the behavior of this trace gas.
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This work investigates the sources of concentric gravity waves (CGWs) excited by a moving system of clouds with several overshooting regions on 1–2 October 2019 at São Martinho da Serra. The parameters of these waves were estimated using 2D spectral analysis and their source locations identified using backward ray tracing. Furthermore, the sources of these waves were properly identified by tracking the individual overshooting regions in space and time since the system of clouds was moving.
Olivier Delage, Thierry Portafaix, Hassan Bencherif, Alain Bourdier, and Emma Lagracie
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The complexity of geophysics systems results in time series with fluctuations at all timescales. The analysis of their variability then consists in decomposing them into a set of basis signals. We developed here a new adaptive filtering method called empirical adaptive wavelet decomposition that optimizes the empirical-mode decomposition existing technique, overcoming its drawbacks using the rigour of wavelets as defined in the recently published empirical wavelet transform method.
Nelson Bègue, Lerato Shikwambana, Hassan Bencherif, Juan Pallotta, Venkataraman Sivakumar, Elian Wolfram, Nkanyiso Mbatha, Facundo Orte, David Jean Du Preez, Marion Ranaivombola, Stuart Piketh, and Paola Formenti
Ann. Geophys., 38, 395–420, https://doi.org/10.5194/angeo-38-395-2020, https://doi.org/10.5194/angeo-38-395-2020, 2020
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This study investigates the influence of the 2015 Calbuco eruption (41.2°S, 72.4°W; Chile) on the total columnar aerosol optical properties in the Southern Hemisphere. The well-known technique of sun photometry was applied to the investigation of the transport and the spatio-temporal evolution of the optical properties of the volcanic plume. The CIMEL sun photometer measurements performed over six South American and three African sites were statistically analyzed.
Emilia Correia, Luis Tiago Medeiros Raunheitte, José Valentin Bageston, and Dino Enrico D'Amico
Ann. Geophys., 38, 385–394, https://doi.org/10.5194/angeo-38-385-2020, https://doi.org/10.5194/angeo-38-385-2020, 2020
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Here the investigation of gravity wave (GW) properties in the low ionosphere using very low frequency (VLF) radio signals is presented. The VLF technique is a powerful tool to obtain the wave period and duration of GW events in the low ionosphere. It can be used independent of sky conditions, during daytime and year-round, which is an advantage in comparison with airglow all-sky imagers.
Kévin Lamy, Thierry Portafaix, Béatrice Josse, Colette Brogniez, Sophie Godin-Beekmann, Hassan Bencherif, Laura Revell, Hideharu Akiyoshi, Slimane Bekki, Michaela I. Hegglin, Patrick Jöckel, Oliver Kirner, Ben Liley, Virginie Marecal, Olaf Morgenstern, Andrea Stenke, Guang Zeng, N. Luke Abraham, Alexander T. Archibald, Neil Butchart, Martyn P. Chipperfield, Glauco Di Genova, Makoto Deushi, Sandip S. Dhomse, Rong-Ming Hu, Douglas Kinnison, Michael Kotkamp, Richard McKenzie, Martine Michou, Fiona M. O'Connor, Luke D. Oman, Giovanni Pitari, David A. Plummer, John A. Pyle, Eugene Rozanov, David Saint-Martin, Kengo Sudo, Taichu Y. Tanaka, Daniele Visioni, and Kohei Yoshida
Atmos. Chem. Phys., 19, 10087–10110, https://doi.org/10.5194/acp-19-10087-2019, https://doi.org/10.5194/acp-19-10087-2019, 2019
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In this study, we simulate the ultraviolet radiation evolution during the 21st century on Earth's surface using the output from several numerical models which participated in the Chemistry-Climate Model Initiative. We present four possible futures which depend on greenhouse gases emissions. The role of ozone-depleting substances, greenhouse gases and aerosols are investigated. Our results emphasize the important role of aerosols for future ultraviolet radiation in the Northern Hemisphere.
Pablo Facundo Orte, Elian Wolfram, Jacobo Salvador, Akira Mizuno, Nelson Bègue, Hassan Bencherif, Juan Lucas Bali, Raúl D'Elia, Andrea Pazmiño, Sophie Godin-Beekmann, Hirofumi Ohyama, and Jonathan Quiroga
Ann. Geophys., 37, 613–629, https://doi.org/10.5194/angeo-37-613-2019, https://doi.org/10.5194/angeo-37-613-2019, 2019
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We analysed an event of short-term ozone variability due to the passage of the polar vortex over Río Gallegos (southern Argentina) with the aim of highlighting the capability of a millimetre-wave radiometer to observe ozone in the stratosphere and the low mesosphere with a high temporal resolution. It is particularly important in this subpolar region due to the high variation that this gas can suffer as a consequence of the passage of the polar vortex and the ozone hole during spring.
David J. du Preez, Jelena V. Ajtić, Hassan Bencherif, Nelson Bègue, Jean-Maurice Cadet, and Caradee Y. Wright
Ann. Geophys., 37, 129–141, https://doi.org/10.5194/angeo-37-129-2019, https://doi.org/10.5194/angeo-37-129-2019, 2019
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Reduced atmospheric ozone results in increased solar ultraviolet radiation (UVR) at the surface which may potentially negative impact public health. We aimed to assess whether or not the break-up of the Antarctic ozone hole had an impact on ozone and UVR at Cape Point (South Africa). We found a moderate inverse relationship between ozone and UVR at midday on clear-sky days. The Antarctic ozone hole had a limited effect on ozone levels while tropical air masses more frequently affected the site.
Abdoulwahab Mohamed Toihir, Thierry Portafaix, Venkataraman Sivakumar, Hassan Bencherif, Andréa Pazmiño, and Nelson Bègue
Ann. Geophys., 36, 381–404, https://doi.org/10.5194/angeo-36-381-2018, https://doi.org/10.5194/angeo-36-381-2018, 2018
Gabriela Dornelles Bittencourt, Caroline Bresciani, Damaris Kirsch Pinheiro, José Valentin Bageston, Nelson Jorge Schuch, Hassan Bencherif, Neusa Paes Leme, and Lucas Vaz Peres
Ann. Geophys., 36, 415–424, https://doi.org/10.5194/angeo-36-415-2018, https://doi.org/10.5194/angeo-36-415-2018, 2018
Short summary
Short summary
Ozone-poor air mass can be released and leave through the Antarctic ozone hole, thus reaching midlatitude regions. The objective of this study is to show how tropospheric and stratospheric dynamics behaved during the event. The ozone-poor air mass began to operate in the region on 20 October 2016. A reduction of ozone content of approximately 23 % was observed in relation to the climatology average. The advance of the ozone-poor air mass caused intense reductions in total ozone content.
Caroline Bresciani, Gabriela Dornelles Bittencourt, José Valentin Bageston, Damaris Kirsch Pinheiro, Nelson Jorge Schuch, Hassan Bencherif, Neusa Paes Leme, and Lucas Vaz Peres
Ann. Geophys., 36, 405–413, https://doi.org/10.5194/angeo-36-405-2018, https://doi.org/10.5194/angeo-36-405-2018, 2018
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This paper investigates the passage of the ozone secondary effect (OSE) over southern Brazil and Uruguay in October 2016 by using multi-instrumental data, i.e. ozonesonde, satellites and ground-based instruments, and the large OSE influence on the ozone concentration and on the temperature was shown.
Amauri Fragoso Medeiros, Igo Paulino, Cristiano Max Wrasse, Joaquim Fechine, Hisao Takahashi, José Valentin Bageston, Ana Roberta Paulino, and Ricardo Arlen Buriti
Ann. Geophys., 36, 311–319, https://doi.org/10.5194/angeo-36-311-2018, https://doi.org/10.5194/angeo-36-311-2018, 2018
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On 3 October 2005, a mesospheric front was observed over São João do Cariri (7.4° S, 36.5° W) propagating to the northeast in the OH airglow images. One and a half hours later, it disappeared completely and ripples were observed in the eastern part of the images. After studying the background atmosphere, the main conclusion of this work was that the instability in the airglow layer did not allow the propagation of the front to the other side of the local zenith.
Mateus S. Venturini, José V. Bageston, Nattan R. Caetano, Lucas V. Peres, Hassan Bencherif, and Nelson J. Schuch
Ann. Geophys., 36, 301–310, https://doi.org/10.5194/angeo-36-301-2018, https://doi.org/10.5194/angeo-36-301-2018, 2018
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In the past years, the study of the temperature trend and its variability in the upper atmosphere has increased. However, most works were conducted in regions of medium and high latitude. Therefore, we aim to analyze a low-latitude region, the south of Brazil and surrounding areas. Using data from the TIMED/SABER instrument and applying the Trend-Run model for temperature trend analyses, no substantial temperature trend was found in the MLT region (80–100 km) from the years 2003 to 2014.
Gabriel Augusto Giongo, José Valentin Bageston, Paulo Prado Batista, Cristiano Max Wrasse, Gabriela Dornelles Bittencourt, Igo Paulino, Neusa Maria Paes Leme, David C. Fritts, Diego Janches, Wayne Hocking, and Nelson Jorge Schuch
Ann. Geophys., 36, 253–264, https://doi.org/10.5194/angeo-36-253-2018, https://doi.org/10.5194/angeo-36-253-2018, 2018
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This work presents four events of mesosphere fronts observed on King George Island, Antarctic Peninsula, in the year 2011. The atmospheric background environment was analyzed to investigate the propagation conditions for all cases. To investigate the sources for such cases, satellite images were used. In two cases, we found that strong tropospheric instabilities were potential sources, and in the other two cases, it was not possible to associate them with tropospheric sources.
Kévin Lamy, Thierry Portafaix, Colette Brogniez, Sophie Godin-Beekmann, Hassan Bencherif, Béatrice Morel, Andrea Pazmino, Jean Marc Metzger, Frédérique Auriol, Christine Deroo, Valentin Duflot, Philippe Goloub, and Charles N. Long
Atmos. Chem. Phys., 18, 227–246, https://doi.org/10.5194/acp-18-227-2018, https://doi.org/10.5194/acp-18-227-2018, 2018
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This work focuses on solar radiation in the tropics, more specifically on ultraviolet radiation. From ground-based and satellite observations of the chemical state of the atmosphere, we were able to model the ultraviolet measurements measured in the southern tropics with a very small error. This is a first step to modelling and predicting future ultraviolet levels in the tropics from chemistry-climate projections.
Nelson Bègue, Damien Vignelles, Gwenaël Berthet, Thierry Portafaix, Guillaume Payen, Fabrice Jégou, Hassan Benchérif, Julien Jumelet, Jean-Paul Vernier, Thibaut Lurton, Jean-Baptiste Renard, Lieven Clarisse, Vincent Duverger, Françoise Posny, Jean-Marc Metzger, and Sophie Godin-Beekmann
Atmos. Chem. Phys., 17, 15019–15036, https://doi.org/10.5194/acp-17-15019-2017, https://doi.org/10.5194/acp-17-15019-2017, 2017
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The space–time evolutions of the Calbuco plume are investigated by combining satellite, in situ aerosol counting and lidar observations, and a numerical model. All the data at Reunion Island reveal a twofold increase in the amount of aerosol with respect to the values observed before the eruption. The dynamic context has favored the spread of the plume exclusively in the Southern Hemisphere. This study highlights the role played by dynamical barriers in the transport of atmospheric species.
Nelson Bègue, Nkanyiso Mbatha, Hassan Bencherif, René Tato Loua, Venkataraman Sivakumar, and Thierry Leblanc
Ann. Geophys., 35, 1177–1194, https://doi.org/10.5194/angeo-35-1177-2017, https://doi.org/10.5194/angeo-35-1177-2017, 2017
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In this investigation a statistical analysis of the characteristics of mesospheric inversion layers (MILs) over tropical regions is presented. This study involves the analysis of 16 years of lidar observations recorded at Reunion (20.8° S, 55.5° E) and 21 years of lidar observations recorded at Mauna Loa (19.5° N, 155.6° W) together with SABER observations at these two locations. Results presented in this study confirm that SAO contributes to the formation of MILs over the tropical region.
Lucas Vaz Peres, Hassan Bencherif, Nkanyiso Mbatha, André Passaglia Schuch, Abdoulwahab Mohamed Toihir, Nelson Bègue, Thierry Portafaix, Vagner Anabor, Damaris Kirsch Pinheiro, Neusa Maria Paes Leme, José Valentin Bageston, and Nelson Jorge Schuch
Ann. Geophys., 35, 25–37, https://doi.org/10.5194/angeo-35-25-2017, https://doi.org/10.5194/angeo-35-25-2017, 2017
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In this paper, we analyze the total ozone column over the Southern Space Observatory, Brazil, between 1992 and 2014 by Brewer spectrometer and TOMS and OMI satellite instruments, finding good agreement between the two. In addition, the seasonal TOC variation is dominated by an annual cycle, and the Quasi-Biennial Oscillation modulation was the main mode of interannual variability and in opposite phase to the total ozone column anomaly time series.
I. Paulino, A. F. Medeiros, S. L. Vadas, C. M. Wrasse, H. Takahashi, R. A. Buriti, D. Leite, S. Filgueira, J. V. Bageston, J. H. A. Sobral, and D. Gobbi
Ann. Geophys., 34, 293–301, https://doi.org/10.5194/angeo-34-293-2016, https://doi.org/10.5194/angeo-34-293-2016, 2016
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Periodic waves have been observed over São João do Cariri during almost one solar cycle. Similarities between the characteristics of these events with observations at other places around the world were noted, primarily the spectral parameters. Most observed waves have appeared during magnetically quiet nights, and the occurrence of those waves followed the solar activity. Due to their characteristics, most of them must have had different generation mechanisms from the Perkins instability.
A. M. Toihir, H. Bencherif, V. Sivakumar, L. El Amraoui, T. Portafaix, and N. Mbatha
Ann. Geophys., 33, 1135–1146, https://doi.org/10.5194/angeo-33-1135-2015, https://doi.org/10.5194/angeo-33-1135-2015, 2015
N. Mbatha, V. Sivakumar, H. Bencherif, and S. Malinga
Ann. Geophys., 31, 1709–1719, https://doi.org/10.5194/angeo-31-1709-2013, https://doi.org/10.5194/angeo-31-1709-2013, 2013
Related subject area
Subject: Terrestrial atmosphere and its relation to the sun | Keywords: Atmospheric ozone
Analysis of a southern sub-polar short-term ozone variation event using a millimetre-wave radiometer
Spring and summer time ozone and solar ultraviolet radiation variations over Cape Point, South Africa
Case study of ozone anomalies over northern Russia in the 2015/2016 winter: measurements and numerical modelling
Strong downdrafts preceding rapid tropopause ascent and their potential to identify cross-tropopause stratospheric intrusions
Pablo Facundo Orte, Elian Wolfram, Jacobo Salvador, Akira Mizuno, Nelson Bègue, Hassan Bencherif, Juan Lucas Bali, Raúl D'Elia, Andrea Pazmiño, Sophie Godin-Beekmann, Hirofumi Ohyama, and Jonathan Quiroga
Ann. Geophys., 37, 613–629, https://doi.org/10.5194/angeo-37-613-2019, https://doi.org/10.5194/angeo-37-613-2019, 2019
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We analysed an event of short-term ozone variability due to the passage of the polar vortex over Río Gallegos (southern Argentina) with the aim of highlighting the capability of a millimetre-wave radiometer to observe ozone in the stratosphere and the low mesosphere with a high temporal resolution. It is particularly important in this subpolar region due to the high variation that this gas can suffer as a consequence of the passage of the polar vortex and the ozone hole during spring.
David J. du Preez, Jelena V. Ajtić, Hassan Bencherif, Nelson Bègue, Jean-Maurice Cadet, and Caradee Y. Wright
Ann. Geophys., 37, 129–141, https://doi.org/10.5194/angeo-37-129-2019, https://doi.org/10.5194/angeo-37-129-2019, 2019
Short summary
Short summary
Reduced atmospheric ozone results in increased solar ultraviolet radiation (UVR) at the surface which may potentially negative impact public health. We aimed to assess whether or not the break-up of the Antarctic ozone hole had an impact on ozone and UVR at Cape Point (South Africa). We found a moderate inverse relationship between ozone and UVR at midday on clear-sky days. The Antarctic ozone hole had a limited effect on ozone levels while tropical air masses more frequently affected the site.
Yury M. Timofeyev, Sergei P. Smyshlyaev, Yana A. Virolainen, Alexander S. Garkusha, Alexander V. Polyakov, Maxim A. Motsakov, and Ole Kirner
Ann. Geophys., 36, 1495–1505, https://doi.org/10.5194/angeo-36-1495-2018, https://doi.org/10.5194/angeo-36-1495-2018, 2018
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Atmospheric ozone plays a vital role, absorbing the ultraviolet solar radiation and heating the air, thus forming the stratosphere itself. If not absorbed, UV radiation would reach Earth's surface in amounts that are harmful to a variety of lifeforms. Climate change may lead to increasing ozone depletion, especially in the Arctic. Observation and prediction of the ozone variability are crucial for the investigation of its nature and the prediction of potential increase in surface UV radiation.
Feilong Chen, Gang Chen, Chunhua Shi, Yufang Tian, Shaodong Zhang, and Kaiming Huang
Ann. Geophys., 36, 1403–1417, https://doi.org/10.5194/angeo-36-1403-2018, https://doi.org/10.5194/angeo-36-1403-2018, 2018
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Downward stratospheric intrusions are well known as an important source of tropospheric ozone. In the light of the present understanding, several unanswered questions remain regarding the use of VHF radars to identify stratospheric intrusions. Our study found that the radar-observed strong downdrafts preceding the rapid tropopause ascent are a strong diagnostic for possible intrusions. This will have important implications for air-quality monitoring and long-term estimation of troposphere ozone.
Cited articles
Antón, M., López, M., Vilaplana, J. M., Kroon, M., Mcpeters, R.,
Bañón, M., and Serrano, A.: Validation of OMI-TOMS and OMI-DOAS
total ozone column using five Brewer spectroradiometers at the Iberian
Peninsula, J. Geophys. Res.-Atmos., 114, D14307, https://doi.org/10.1029/2009JD012003,
2009.
Bencherif, H., Portafaix, T., Baray, J. L., Morel, B., Baldy, S., Leveau, J.,
Hauchecorne, A., Keckhut, P., Moorgawa, A., Michaelis, M. M., and Diab, R.: LIDAR observations of lower stratospheric aerosols over South Africa linked to large scale transport across the southern subtropical barrier, J. Atmos. Sol.-Terr. Phy., 65, 707–715, https://doi.org/10.1016/S1364-6826(03)00006-3, 2003.
Bencherif, H., El Amraoui, L., Semane, N., Massart, S., Charyulu, D. V.,
Hauchecorne, A., and Peuch, V. H.: Examination of the 2002 major warming in the
southern hemisphere using ground-based and Odin/SMR assimilated data:
stratospheric ozone distributions and tropic/mid-latitude exchange, Can. J.
Phys., 85, 1287–1300, 2007.
Bittencourt, G. D., Bresciani, C., Kirsch Pinheiro, D., Bageston, J. V., Schuch, N. J., Bencherif, H., Leme, N. P., and Vaz Peres, L.: A major event of Antarctic ozone hole influence in southern Brazil in October 2016: an analysis of tropospheric and stratospheric dynamics, Ann. Geophys., 36, 415–424, https://doi.org/10.5194/angeo-36-415-2018, 2018.
Bresciani, C., Bittencourt, G. D., Bageston, J. V., Pinheiro, D. K., Schuch, N. J., Bencherif, H., Leme, N. P., and Peres, L. V.: Report of a large depletion in the ozone layer over southern Brazil and Uruguay by using multi-instrumental data, Ann. Geophys., 36, 405–413, https://doi.org/10.5194/angeo-36-405-2018, 2018.
Brewer, A. W.: Evidence for a world circulation provided by the measurements
of helium and water vapor distribution in the stratosphere, Q. J. Roy.
Meteor. Soc., 75, 351–363, 1949.
Brewer Manual: available at: http://kippzonen-brewer.com/wp-content/uploads/2014/10/KippZonen_Operators_Manual_Brewer_MKIII_V1206-1.pdf, last access: 22 September 2019.
Brewer Models: available at: http://kippzonen-brewer.com/about-brewer/history-brewer/, last access: 22 September 2019.
Brewer Website: available at: https://www.esrl.noaa.gov/gmd/grad/neubrew/MkIV.jsp, last access: 22 September 2019.
Bukin, O. A., Suan, A. N., Pavlov, A. N., Stolyarchuk, S. Y., and Shmirko, K. A.: Effect that Jet Streams Have on the Vertical Ozone Distribution and
Characteristics of Tropopause Inversion Layer, Izv. Atmos. Ocean. Phy.,
47, 610–618, 2011.
Casiccia, C., Zamorano, F., and Hernandez, A.: Erythemal irradiance at the
Magellan's region and Antarctic ozone hole 1999–2005, Atmosphere, 21, 1–12, 2008.
Chubachi, S.: Preliminary result of ozone observations at Syowa Station from
February, 1982 to January, 1983, Mem. Natl. Inst. Polar Res. Jpn. Spec.,
34, 13–20, 1984.
Dee, D. P., Uppala, S. M., Simmons, A. J., Berrisford, P., Poli, P.,
Kobayashi, S., Andrae, U., Balmaseda, M. A., Balsamo, G., Bauer, P.,
Bechtold, P., Van De Berg, L., Bidlot, J., Bormann, N., Delsol, C., Dragani, R., and
Fuentes, M.: The ERA-Interim reanalysis: configuration and performance of the
data assimilation system, Q. J. Roy. Meteor. Soc., 137, 553–597,
https://doi.org/10.1002/qj.828, 2011.
Dobson, G. M. B.: Forty years research on atmospheric ozone at Oxford: A
history, Appl. Optics, 7, 387–405, 1968.
ECMWF/Era-Interim:
available at: http://apps.ecmwf.int/datasets/data/interim-full-daily/levtype=sfc (last access: 24 November 2018), 2017.
Farman, J. C., Gardiner, B. G., and Shanklin, J. D.: Large losses of total ozone
in Antarctica reveal seasonal ClOx∕NOx interaction, Nature, 315, 207–210,
1985.
Fioletov, V. E., Kerr, J. B., Mcelroy, C. T., Wardle, D. I., Savastiouk, V.,
and Grajnar, T. S.: The Brewer reference triad, Geophys. Res. Lett., 32,
L20805, https://doi.org/10.1029/2005GL024244, 2005.
Gettelman, A., Hoor, P., Pan, L. L., Randel, W. J., Hegglin, M. I., and Birner,
T.: The Extratropical Upper Troposphere and Lower Stratosphere, Rev.
Geophys., 49, RG3003, https://doi.org/10.1029/2011RG000355, 2011.
Guarnieri, R. A., Padilha, L. F., Guarnieri, F. L., Echer, E., Makita, K., Pine, D. K., Schuch, A. M., Boeira, L. S., and Schuch, N. J.: A Study Of The Anticorrelations Between Ozone And UV-B Radiation Using Linear And Exponential Fits In Southern Brazil, Adv. Space Res., 34, 764–768, 2004.
Hendrick, F., Pommereau, J.-P., Goutail, F., Evans, R. D., Ionov, D., Pazmino, A., Kyrö, E., Held, G., Eriksen, P., Dorokhov, V., Gil, M., and Van Roozendael, M.: NDACC/SAOZ UV-visible total ozone measurements: improved retrieval and comparison with correlative ground-based and satellite observations, Atmos. Chem. Phys., 11, 5975–5995, https://doi.org/10.5194/acp-11-5975-2011, 2011.
Hofmann, D. J., Oltmans, S. J., Harris, J. M., Johnson, B. J., and Lathrop, J.
A.: Ten years of ozone sonde measurements at the South Pole: Implications
for recovery of springtime Antarctic ozone, J. Geophys. Res.-Atmos.,
102, 8931–8943, 1997.
Hoskins, B. J., Mcintyre, M. E., and Robertson, A. W.: On the use and
significance of isentropic potential vorticity maps, Q. J. Roy. Meteor.
Soc., 111, 877–946, 1985.
HYSPLIT: Hybrid Single Particle Lagrangian Integrated Trajectory,
NOAA, available at: https://ready.arl.noaa.gov/HYSPLIT.php, last access: 15 May 2019.
Keckhut, P., Hauchecorne, A., Blanot, L., Hocke, K., Godin-Beekmann, S., Bertaux, J.-L., Barrot, G., Kyrölä, E., van Gijsel, J. A. E., and Pazmino, A.: Mid-latitude ozone monitoring with the GOMOS-ENVISAT experiment version 5: the noise issue, Atmos. Chem. Phys., 10, 11839–11849, https://doi.org/10.5194/acp-10-11839-2010, 2010.
Kerr, J. B.: New methodology for deriving total ozone and other atmospheric
variables from Brewer spectrometer direct Sun spectra, J. Geophys. Res.,
107, 4731, https://doi.org/10.1029/2001JD001227, 2002.
Kirchhoff, V. W. J. H., Schuch, N. J., Pinheiro, D. K., and Harris, J. M.:
Evidence for an ozone hole perturbation at 30∘ south, Atmos.
Environ., 33, 1481–1488, 1996.
Levelt, P., Oord, G. H. J., Dobber, M., Mälkki, A., Visser,
H., Vries, J., Stammes, P., Lundell, J., and Saari, H.: The
Ozone Monitoring Instrument, IEEE T. Geosci. Remote Sens., 44,
1093–1101, https://doi.org/10.1109/TGRS.2006.872333, 2006.
London, J.: Observed distribution of atmospheric ozone and its variations,
in: Ozone in the free atmosphere, edited by: Whitten, R.
C. and Prasad, S. S., New York, Van Nostrand Reinhold, chap. 1, 11–80, 1985.
Marchand, M., Bekki, S., Pazmino, A., Lefèvre, F., Godin-Beekmann, S.,
and Hauchecorne, A.: Model simulations of the impact of the 2002 Antarctic ozone
hole on mid-latitudes, J. Atmos. Sci., 62, 871–884, 2005.
NASA website: available at: https://www.nasa.gov/centers/goddard/news/topstory/2007/toms_end.html, last access: 5 October 2018.
Ohring, G., Bojkov, R. D., Bolle, H. J., Hudson, R. D., and Volkert, H.:
Radiation and ozone: Catalysts for advancing international atmospheric science programs for over half a century, B. Am. Meteorol. Soc., 90, 1669–1681, https://doi.org/10.1016/j.srt.2010.03.004, 2010.
OMI: OMI-ERS2/NASA – AURA Validation Data Center:
available at: https://avdc.gsfc.nasa.gov/index.php?site=1593048672&id=28 (last access: 8 November 2018.
Peres, L. V., Reis, N. C. S. Dos., Santos, L. O., Bittencourt, G. D.,
Schuch, A. P., Anabor, V., Pinheiro, D. K., Schuch, N. J., and Leme, N. M. P.:
Atmospheric Analysis of the Events of Secondary Effect of the Antarctic
Ozone Hole on Southern Brazil in 2012. Part 2: Synoptic Verification of the
Troposphere during the events, Science and Nature, 36, 423–433, 2014.
Peres, L. V., Pinheiro, D. K., Steffenel, L. A., Mendes, D., Bageston, J.
V., Bittencourt, G. D., Schuch, A. P., Anabor, V., Leme, N. M. P., Schuch,
N. J., and Bencherif, H.: Long-term Monitoring and Climatology of Stratospheric
Fields when Antarctic Ozone Hole Influence Events Occur in Southern Brazil,
Brazilian Journal of Meteorology, 34, 151–163, 2019.
Peres, V. L.: Monitoring of the total ozone column and the occurrence of
events of influence of the Antarctic Ozone Hole over the South of Brazil,
Doctoral thesis, available at: https://repositorio.ufsm.br/bitstream/handle/1/12621/TES_PPGMETEOROLOGIA_2016_PERES_LUCAS.pdf?sequence=1&isAllowed=y (last access: 18 November 2019), 2016.
Ploeger, F., Konopka, P., Mueller, R., Fueglistaler, S., Schmidt, T.,
Manners, J. C., Grooss, J. U., Guenther, G., Forster, P. M., and Riese, M.:
Horizontal transport affecting trace gas seasonality in the Tropical
Tropopause Layer (TTL), J. Geophys. Res.-Atmos., 117, D09303, https://doi.org/10.1029/2011JD017267, 2012.
Reboita, M. S., Gan, M. A., Rocha, R. P., and Ambrizzi, T.: Regimes of
precipitation in South America: A Bibliographical Review, B. J. Met.,
25, 185–204, 2010.
Rolph, G., Stein, A., and Stunder, B.: Real-time Environmental Applications
and Display sYstem: READY, Environ. Modell. Softw., 95,
210–228, https://doi.org/10.1016/j.envsoft.2017.06.025, 2017.
Salby, M. L.: Fund. Atmos. Phys. International geophysics series, Vol. 61,
Academic Press, 1996.
Santos, L. O.: Stratosphere Exchange – Troposphere and its Influence on
Ozone Content in the Central Region of Rio Grande do Sul, Master's
Dissertation, available at: https://repositorio.ufsm.br/bitstream/handle/1/10289/SANTOS%2C%20LETICIA%20DE%20OLIVEIRA%20DOS.pdf?sequence=1&isAllowed=y (last access: 19 November 2019), 2016.
Schoeberl, M. R.: Reconstruction of the constituent distribution and trends
in the Antarctic polar vortex from ER-2 flight observations, J. Geophys.
Res., 94, 16815–16845, 1989.
Schuch, P. A., Santos, M. B., Lipinski, V. M., Peres, L. V., San-Tos, C. P.,
Cechin, S. Z., Schuch, N. J., Pinheiro, D. K., and Loreto, E. L. S.:
Identification of influential events concerning the Antarctic ozone hole
over southern Brazil and the biological effects induced by UVB and UVA
radiation in an endemic tree frog species, Ecotox. Environ. Safe., 118,
190–198, https://doi.org/10.1016/j.ecoenv.2015.04.029, 2015.
SCI TEC: Brewer ozone spectrophotometer, Acceptance manual, Doc.
AM-BA-C05-Rev C, SCI TEC Instruments, Seoul, 1988.
Seinfeld, J. H. and Pandis, S. N.: From Air Pollution to Climate Change, Atmos.
Chem. Phys., 3rd Edn., John Wiley and Sons, Inc., 2016.
Semane, N., Bencherif, H., Morel, B., Hauchecorne, A., and Diab, R. D.: An unusual stratospheric ozone decrease in the Southern Hemisphere subtropics linked to isentropic air-mass transport as observed over Irene (25.5∘ S, 28.1∘ E) in mid-May 2002, Atmos. Chem. Phys., 6, 1927–1936, https://doi.org/10.5194/acp-6-1927-2006, 2006.
Solomon, S.: Stratospheric ozone depletion: A review of concepts and
history, Rev. Geophys., 37, 275–316, 1999.
Solomon, S., Ivy, D. J., Kinnison, D., Mills, M. J., Neely, R. R., and Schmidt, A.:
Emergence of healing in the Antarctic ozone layer, Science, 353,
269–274, https://doi.org/10.1126/science.aae0061, 2016.
Vanicek, K.: Calibration history of the ozone spectrophotometers operated at
the Solar and Ozone Observatory of CHMI in Hradec Kralove, Czech Republic,
Publication of the Czech Hydrometeorological Institute, ISBN 80-86690-08-3,
Prague, 2003.
Wilks, D. S.: Theoretical probability distributions, in: Statistical methods in the atmospheric sciences, Academic Press, San Diego, 102–104, 2006.
WMO (World Meteorological Organization), Scientific Assessment of Ozone Depletion: 2014, World Meteorological Organization, Global Ozone Research and Monitoring Project-Report No. 55, 416 pp., Geneva, Switzerland, 2014.
WMO (World Meteorological Organization), Scientific Assessment of Ozone Depletion: 2018, Global Ozone Research and Monitoring Project – Report No. 58, 588 pp., Geneva, Switzerland, 2018.
Short summary
The Antarctic ozone hole (AOH) directly influences the Antarctic region, where its levels can reach values below 220 DU. The temporary depletion of ozone in Antarctica generally occurs between the beginning and middle of August, during the austral spring, and extends to November, when a temporary reduction in ozone content is observed in a large region over Antarctica. However, masses of ozone-depleted air can break away from the ozone hole and reach mid-latitude regions.
The Antarctic ozone hole (AOH) directly influences the Antarctic region, where its levels can...
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