Articles | Volume 38, issue 6
https://doi.org/10.5194/angeo-38-1247-2020
© Author(s) 2020. 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-38-1247-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Regular paper
| 
17 Dec 2020
Regular paper |
| 17 Dec 2020
| 17 Dec 2020
Diurnal mesospheric tidal winds observed simultaneously by meteor radars in Costa Rica (10° N, 86° W) and Brazil (7° S, 37° W)
Unidade Acadêmica de Física, Universidade Federal de Campina
Grande, C. Grande, 58429-900, Brazil
Wayne Hocking
Department of Physics and Astronomy, University of Western Ontario,
London, N6A3K7, Canada
Paulo P. Batista
Heliophysics, Planetary Sciences and Aeronomy Division, National Institute for Space Research, S. J. dos Campos, 12227-101, Brazil
Igo Paulino
Unidade Acadêmica de Física, Universidade Federal de Campina
Grande, C. Grande, 58429-900, Brazil
Ana R. Paulino
Departamento de Física, Universidade Estadual da Paraíba, C.
Grande, 58429-500, Brazil
Marcial Garbanzo-Salas
Departament of Atmospheric, Oceanic and Planetary Physics, Universidad
of Costa Rica, San Jose, 11501-2060, Costa Rica
Barclay Clemesha
Heliophysics, Planetary Sciences and Aeronomy Division, National Institute for Space Research, S. J. dos Campos, 12227-101, Brazil
deceased
Amauri F. Medeiros
Unidade Acadêmica de Física, Universidade Federal de Campina
Grande, C. Grande, 58429-900, Brazil
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On 15th January 2022, the Hunga Tonga-Hunga Ha‘apai volcano exploded in a vigorous eruption causing many atmospheric phenomena reaching from the surface up to space. In this study, we investigate how the mesospheric winds were affected by the volcanic-caused gravity waves and estimated their propagation direction and speed. The interplay between model and observations permits us to gain new insights into the vertical coupling through atmospheric gravity waves.
Ana Roberta Paulino, Delis Otildes Rodrigues, Igo Paulino, Lourivaldo Mota Lima, Ricardo Arlen Buriti, Paulo Prado Batista, Aaron Ridley, and Chen Wu
Ann. Geophys. Discuss., https://doi.org/10.5194/angeo-2023-23, https://doi.org/10.5194/angeo-2023-23, 2023
Revised manuscript under review for ANGEO
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Comparisons of wind measurements using two different techniques (ground based radar and satellite) in Brasil during 2006 were made in order to point out the advantage of each instrument for studies in the mesosphere and upper thermosphere. (i) For short period variations, the measurements of the satellite was more advantageous. (ii) The month climatology using the radar were more appropriate. (iii) If the long period (longer than few months), both instruments responded satisfactorily.
Igo Paulino, Ana Roberta Paulino, Amauri F. Medeiros, Cristiano M. Wrasse, Ricardo Arlen Buriti, and Hisao Takahashi
Ann. Geophys., 39, 1005–1012, https://doi.org/10.5194/angeo-39-1005-2021, https://doi.org/10.5194/angeo-39-1005-2021, 2021
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In the present work, the lunar semidiurnal tide (M2) was investigated in the equatorial plasma bubble (EPB) zonal drifts over Brazil from 2000 to 2007. On average, the M2 contributes 5.6 % to the variability of the EPB zonal drifts. A strong seasonal and solar cycle dependency was also observed, the amplitudes of the M2 being stronger during the summer and high solar activity periods.
Oluwakemi Dare-Idowu, Igo Paulino, Cosme A. O. B. Figueiredo, Amauri F. Medeiros, Ricardo A. Buriti, Ana Roberta Paulino, and Cristiano M. Wrasse
Ann. Geophys., 38, 507–516, https://doi.org/10.5194/angeo-38-507-2020, https://doi.org/10.5194/angeo-38-507-2020, 2020
Short summary
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Some strong gravity wave activity occurred and was observed on 8 April 2005. This work reports the spectral characteristics of these waves using OH airglow images captured by the all-sky imager installed at São João do Cariri (7.4° S, 36.5° W). A preferential propagation direction was observed due to the positioning of the source and also due to the wind filtering effect. Furthermore, the source of these waves was identified by performing reverse-ray tracing analysis.
Igo Paulino, Ana Roberta Paulino, Ricardo Y. C. Cueva, Ebenezer Agyei-Yeboah, Ricardo Arlen Buriti, Hisao Takahashi, Cristiano Max Wrasse, Ângela M. Santos, Amauri Fragoso de Medeiros, and Inez S. Batista
Ann. Geophys., 38, 437–443, https://doi.org/10.5194/angeo-38-437-2020, https://doi.org/10.5194/angeo-38-437-2020, 2020
Short summary
Short summary
In this paper, an extensive study has been done in order to investigate periodic oscillations in the start times of equatorial plasma bubbles observed over Brazil. Using OI6300 airglow images and ionograms, it was possible to detect semimonthly oscillations in the start times of equatorial plasma bubbles (EPBs) and equatorial Spread-F. This semimonthly oscillation is likely related to the lunar tide, which represents an important mechanism acting in the day-to-day variability of EPBs.
Patrick Essien, Igo Paulino, Cristiano Max Wrasse, Jose Andre V. Campos, Ana Roberta Paulino, Amauri F. Medeiros, Ricardo Arlen Buriti, Hisao Takahashi, Ebenezer Agyei-Yeboah, and Aline N. Lins
Ann. Geophys., 36, 899–914, https://doi.org/10.5194/angeo-36-899-2018, https://doi.org/10.5194/angeo-36-899-2018, 2018
Short summary
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Present work reports seasonal characteristics of small- and medium-scale gravity waves in the mesosphere and lower thermosphere region. All-sky images of the hydroxyl airglow emission layer over São João do Cariri (7.4° S, 36.5° W) were observed from September 2000 to December 2010, during a total of 1496 nights and obtained 2343 SSGW and 537 MSGW events. The horizontal propagation directions of SSGWs and MSGWs showed clear seasonal variations based on the influence of the wind filtering process.
Prosper K. Nyassor, Ricardo Arlen Buriti, Igo Paulino, Amauri F. Medeiros, Hisao Takahashi, Cristiano M. Wrasse, and Delano Gobbi
Ann. Geophys., 36, 705–715, https://doi.org/10.5194/angeo-36-705-2018, https://doi.org/10.5194/angeo-36-705-2018, 2018
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
Short summary
Short summary
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.
Igo Paulino, Joyrles F. Moraes, Gleuson L. Maranhão, Cristiano M. Wrasse, Ricardo Arlen Buriti, Amauri F. Medeiros, Ana Roberta Paulino, Hisao Takahashi, Jonathan J. Makela, John W. Meriwether, and José André V. Campos
Ann. Geophys., 36, 265–273, https://doi.org/10.5194/angeo-36-265-2018, https://doi.org/10.5194/angeo-36-265-2018, 2018
Short summary
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This article presents characteristics of periodic waves observed in the thermosphere from airglow images collected in the Northeast of Brazil. Using simultaneous measurements of the background wind in the airglow emission altitudes, it was possible to estimate the intrinsic parameters and the role of the wind in the propagation of the waves into the thermosphere. An anisotropy in the propagation direction of the waves was observed and it could be explained by the wind filtering process.
Cosme Alexandre O. B. Figueiredo, Ricardo A. Buriti, Igo Paulino, John W. Meriwether, Jonathan J. Makela, Inez S. Batista, Diego Barros, and Amauri F. Medeiros
Ann. Geophys., 35, 953–963, https://doi.org/10.5194/angeo-35-953-2017, https://doi.org/10.5194/angeo-35-953-2017, 2017
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. F. Medeiros, I. Paulino, M. J. Taylor, J. Fechine, H. Takahashi, R. A. Buriti, L. M. Lima, and C. M. Wrasse
Ann. Geophys., 34, 91–96, https://doi.org/10.5194/angeo-34-91-2016, https://doi.org/10.5194/angeo-34-91-2016, 2016
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This paper reports two consecutive mesospheric bores observed in the airglow emissions (OH and OI5577). Both bores propagated to the east and showed similar spectral characteristics. However, the first one exhibited a dark leading front with several trailing waves behind and progressed into a brighter airglow region. However, the second bore, observed in the OH layer, was comprised of several bright waves propagating into a darker airglow region.
Gunter Stober, Sharon L. Vadas, Erich Becker, Alan Liu, Alexander Kozlovsky, Diego Janches, Zishun Qiao, Witali Krochin, Guochun Shi, Wen Yi, Jie Zeng, Peter Brown, Denis Vida, Neil Hindley, Christoph Jacobi, Damian Murphy, Ricardo Buriti, Vania Andrioli, Paulo Batista, John Marino, Scott Palo, Denise Thorsen, Masaki Tsutsumi, Njål Gulbrandsen, Satonori Nozawa, Mark Lester, Kathrin Baumgarten, Johan Kero, Evgenia Belova, Nicholas Mitchell, and Na Li
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On 15th January 2022, the Hunga Tonga-Hunga Ha‘apai volcano exploded in a vigorous eruption causing many atmospheric phenomena reaching from the surface up to space. In this study, we investigate how the mesospheric winds were affected by the volcanic-caused gravity waves and estimated their propagation direction and speed. The interplay between model and observations permits us to gain new insights into the vertical coupling through atmospheric gravity waves.
Ana Roberta Paulino, Delis Otildes Rodrigues, Igo Paulino, Lourivaldo Mota Lima, Ricardo Arlen Buriti, Paulo Prado Batista, Aaron Ridley, and Chen Wu
Ann. Geophys. Discuss., https://doi.org/10.5194/angeo-2023-23, https://doi.org/10.5194/angeo-2023-23, 2023
Revised manuscript under review for ANGEO
Short summary
Short summary
Comparisons of wind measurements using two different techniques (ground based radar and satellite) in Brasil during 2006 were made in order to point out the advantage of each instrument for studies in the mesosphere and upper thermosphere. (i) For short period variations, the measurements of the satellite was more advantageous. (ii) The month climatology using the radar were more appropriate. (iii) If the long period (longer than few months), both instruments responded satisfactorily.
Pedro Alves Fontes, Marcio Tadeu de Assis Honorato Muella, Laysa Cristina Araújo Resende, Vânia Fátima Andrioli, Paulo Roberto Fagundes, Valdir Gil Pillat, Paulo Prado Batista, and Alexander Jose Carrasco
Ann. Geophys., 41, 209–224, https://doi.org/10.5194/angeo-41-209-2023, https://doi.org/10.5194/angeo-41-209-2023, 2023
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In the terrestrial ionosphere, sporadic (metallic) layers are formed. The formation of these layers are related to the action of atmospheric waves. These waves, also named tides, are due to the absorption of solar radiation in the atmosphere. We investigated the role of the tides with 8 h period in the formation of the sporadic layers. The study was conducted using ionosonde and meteor radar data, as well as computing simulations. The 8 h tides intensified the density of the sporadic layers.
Hisao Takahashi, Cosme A. O. B. Figueiredo, Patrick Essien, Cristiano M. Wrasse, Diego Barros, Prosper K. Nyassor, Igo Paulino, Fabio Egito, Geangelo M. Rosa, and Antonio H. R. Sampaio
Ann. Geophys., 40, 665–672, https://doi.org/10.5194/angeo-40-665-2022, https://doi.org/10.5194/angeo-40-665-2022, 2022
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We observed two different wave propagations in the earth’s upper atmosphere: a gravity wave in the mesosphere and the ionospheric disturbances. We investigated the wave propagations by using airglow imaging techniques. It is found that there was a gravity wave generation from the tropospheric convection spot, and it propagated upward in the ionosphere. This reports observational evidence of gravity wave propagation from the troposphere to ionosphere.
Prosper K. Nyassor, Cristiano M. Wrasse, Igo Paulino, Eliah F. M. T. São Sabbas, José V. Bageston, Kleber P. Naccarato, Delano Gobbi, Cosme A. O. B. Figueiredo, Toyese T. Ayorinde, Hisao Takahashi, and Diego Barros
Atmos. Chem. Phys., 22, 15153–15177, https://doi.org/10.5194/acp-22-15153-2022, https://doi.org/10.5194/acp-22-15153-2022, 2022
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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.
Igo Paulino, Ana Roberta Paulino, Amauri F. Medeiros, Cristiano M. Wrasse, Ricardo Arlen Buriti, and Hisao Takahashi
Ann. Geophys., 39, 1005–1012, https://doi.org/10.5194/angeo-39-1005-2021, https://doi.org/10.5194/angeo-39-1005-2021, 2021
Short summary
Short summary
In the present work, the lunar semidiurnal tide (M2) was investigated in the equatorial plasma bubble (EPB) zonal drifts over Brazil from 2000 to 2007. On average, the M2 contributes 5.6 % to the variability of the EPB zonal drifts. A strong seasonal and solar cycle dependency was also observed, the amplitudes of the M2 being stronger during the summer and high solar activity periods.
Xiao Liu, Jiyao Xu, Jia Yue, You Yu, Paulo P. Batista, Vania F. Andrioli, Zhengkuan Liu, Tao Yuan, Chi Wang, Ziming Zou, Guozhu Li, and James M. Russell III
Earth Syst. Sci. Data, 13, 5643–5661, https://doi.org/10.5194/essd-13-5643-2021, https://doi.org/10.5194/essd-13-5643-2021, 2021
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Based on the gradient balance wind theory and the SABER observations, a dataset of monthly mean zonal wind has been developed at heights of 18–100 km and latitudes of 50° Sndash;50° N from 2002 to 2019. The dataset agrees with the zonal wind from models (MERRA2, UARP, HWM14) and observations by meteor radar and lidar at seven stations. The dataset can be used to study seasonal and interannual variations and can serve as a background for wave studies of tides and planetary waves.
Ana Roberta Paulino, Fabiano da Silva Araújo, Igo Paulino, Cristiano Max Wrasse, Lourivaldo Mota Lima, Paulo Prado Batista, and Inez Staciarini Batista
Ann. Geophys., 39, 151–164, https://doi.org/10.5194/angeo-39-151-2021, https://doi.org/10.5194/angeo-39-151-2021, 2021
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Long- and short-period oscillations in the lunar semidiurnal tidal amplitudes in the ionosphere derived from the total electron content were investigated over Brazil from 2011 to 2014. The results showed annual, semiannual and triannual oscillations as the dominant components. Additionally, the most pronounced short-period oscillations were observed between 7 and 11 d, which suggest a possible coupling of the lunar tide and planetary waves.
Jianyuan Wang, Wen Yi, Jianfei Wu, Tingdi Chen, Xianghui Xue, Robert A. Vincent, Iain M. Reid, Paulo P. Batista, Ricardo A. Buriti, Toshitaka Tsuda, and Xiankang Dou
Atmos. Chem. Phys. Discuss., https://doi.org/10.5194/acp-2021-33, https://doi.org/10.5194/acp-2021-33, 2021
Revised manuscript not accepted
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In this study, we report the climatology of migrating and non-migrating tides in mesopause winds estimated using multiyear observations from three meteor radars in the southern equatorial region. The results reveal that the climatological patterns of tidal amplitudes by meteor radars is similar to the Climatological Tidal Model of the Thermosphere (CTMT) results and the differences are mainly due to the effect of the stratospheric sudden warming (SSW) event.
Joyrles Fernandes de Moraes, Igo Paulino, Lívia R. Alves, and Clezio Marcos Denardini
Ann. Geophys., 38, 881–888, https://doi.org/10.5194/angeo-38-881-2020, https://doi.org/10.5194/angeo-38-881-2020, 2020
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Effects of space weather events in technological systems were studied in the tropical region of Brazil by investigating the Bolivia–Brazil pipeline during space weather events with different intensities. The results presented significant corrosion levels during the 17 March 2015 geomagnetic storm and showed that the effects of space weather must be accounted for, even in low latitudes, since the lifetime of the pipelines can be reduced.
Oluwakemi Dare-Idowu, Igo Paulino, Cosme A. O. B. Figueiredo, Amauri F. Medeiros, Ricardo A. Buriti, Ana Roberta Paulino, and Cristiano M. Wrasse
Ann. Geophys., 38, 507–516, https://doi.org/10.5194/angeo-38-507-2020, https://doi.org/10.5194/angeo-38-507-2020, 2020
Short summary
Short summary
Some strong gravity wave activity occurred and was observed on 8 April 2005. This work reports the spectral characteristics of these waves using OH airglow images captured by the all-sky imager installed at São João do Cariri (7.4° S, 36.5° W). A preferential propagation direction was observed due to the positioning of the source and also due to the wind filtering effect. Furthermore, the source of these waves was identified by performing reverse-ray tracing analysis.
Igo Paulino, Ana Roberta Paulino, Ricardo Y. C. Cueva, Ebenezer Agyei-Yeboah, Ricardo Arlen Buriti, Hisao Takahashi, Cristiano Max Wrasse, Ângela M. Santos, Amauri Fragoso de Medeiros, and Inez S. Batista
Ann. Geophys., 38, 437–443, https://doi.org/10.5194/angeo-38-437-2020, https://doi.org/10.5194/angeo-38-437-2020, 2020
Short summary
Short summary
In this paper, an extensive study has been done in order to investigate periodic oscillations in the start times of equatorial plasma bubbles observed over Brazil. Using OI6300 airglow images and ionograms, it was possible to detect semimonthly oscillations in the start times of equatorial plasma bubbles (EPBs) and equatorial Spread-F. This semimonthly oscillation is likely related to the lunar tide, which represents an important mechanism acting in the day-to-day variability of EPBs.
Patrick Essien, Igo Paulino, Cristiano Max Wrasse, Jose Andre V. Campos, Ana Roberta Paulino, Amauri F. Medeiros, Ricardo Arlen Buriti, Hisao Takahashi, Ebenezer Agyei-Yeboah, and Aline N. Lins
Ann. Geophys., 36, 899–914, https://doi.org/10.5194/angeo-36-899-2018, https://doi.org/10.5194/angeo-36-899-2018, 2018
Short summary
Short summary
Present work reports seasonal characteristics of small- and medium-scale gravity waves in the mesosphere and lower thermosphere region. All-sky images of the hydroxyl airglow emission layer over São João do Cariri (7.4° S, 36.5° W) were observed from September 2000 to December 2010, during a total of 1496 nights and obtained 2343 SSGW and 537 MSGW events. The horizontal propagation directions of SSGWs and MSGWs showed clear seasonal variations based on the influence of the wind filtering process.
Prosper K. Nyassor, Ricardo Arlen Buriti, Igo Paulino, Amauri F. Medeiros, Hisao Takahashi, Cristiano M. Wrasse, and Delano Gobbi
Ann. Geophys., 36, 705–715, https://doi.org/10.5194/angeo-36-705-2018, https://doi.org/10.5194/angeo-36-705-2018, 2018
Amelia Naomi Onohara, Inez Staciarini Batista, and Paulo Prado Batista
Ann. Geophys., 36, 459–471, https://doi.org/10.5194/angeo-36-459-2018, https://doi.org/10.5194/angeo-36-459-2018, 2018
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Global coverage measurements made by satellites have provided observational studies which have shown the presence of four peaks in global longitudinal structures from global local time observations of equatorial ionization anomalies. The structures seen in the ionosphere are related to the diurnal non-migrating wave that comes from the troposphere and can be noticed in periods of low and high solar activity in the low-latitude ionosphere regions, mainly at altitudes from ~ 250 km up to ~ 800 km.
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
Short summary
Short summary
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.
Igo Paulino, Joyrles F. Moraes, Gleuson L. Maranhão, Cristiano M. Wrasse, Ricardo Arlen Buriti, Amauri F. Medeiros, Ana Roberta Paulino, Hisao Takahashi, Jonathan J. Makela, John W. Meriwether, and José André V. Campos
Ann. Geophys., 36, 265–273, https://doi.org/10.5194/angeo-36-265-2018, https://doi.org/10.5194/angeo-36-265-2018, 2018
Short summary
Short summary
This article presents characteristics of periodic waves observed in the thermosphere from airglow images collected in the Northeast of Brazil. Using simultaneous measurements of the background wind in the airglow emission altitudes, it was possible to estimate the intrinsic parameters and the role of the wind in the propagation of the waves into the thermosphere. An anisotropy in the propagation direction of the waves was observed and it could be explained by the wind filtering process.
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.
Fabio Egito, Ricardo Arlen Buriti, Amauri Fragoso Medeiros, and Hisao Takahashi
Ann. Geophys., 36, 231–241, https://doi.org/10.5194/angeo-36-231-2018, https://doi.org/10.5194/angeo-36-231-2018, 2018
Cosme Alexandre O. B. Figueiredo, Ricardo A. Buriti, Igo Paulino, John W. Meriwether, Jonathan J. Makela, Inez S. Batista, Diego Barros, and Amauri F. Medeiros
Ann. Geophys., 35, 953–963, https://doi.org/10.5194/angeo-35-953-2017, https://doi.org/10.5194/angeo-35-953-2017, 2017
Wayne K. Hocking, Reynold E. Silber, John M. C. Plane, Wuhu Feng, and Marcial Garbanzo-Salas
Ann. Geophys., 34, 1119–1144, https://doi.org/10.5194/angeo-34-1119-2016, https://doi.org/10.5194/angeo-34-1119-2016, 2016
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Meteoroids entering the atmosphere produce trails of ionized particles which can be detected with radar. The weakest ones are called underdense (the most common), the strongest are called overdense, and intermediate ones are transitional. Meteor radar signatures are used to determine atmospheric parameters like temperature and winds. We present new results which show the effect of ozone on the transitional trail lifetimes, which may eventually allow radar to measure mesospheric ozone.
Amitava Guharay, Paulo Prado Batista, Barclay Robert Clemesha, Ricardo Arlen Buriti, and Nelson Jorge Schuch
Ann. Geophys., 34, 411–419, https://doi.org/10.5194/angeo-34-411-2016, https://doi.org/10.5194/angeo-34-411-2016, 2016
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A comparative study of the quasi-16-day wave in the middle from three Brazilian stations, indicates multiple modes of the concerned wave component. The wave amplitude shows maxima in summer and winter. A potential coupling of the concerned wave with other short period planetary waves is found. The dominant wave components vary from the westward to eastward from the tropical to mid-latitude in the stratosphere. The prevailing westerly wind may favor the wave filtering of westward waves.
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
Short summary
Short summary
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. F. Medeiros, I. Paulino, M. J. Taylor, J. Fechine, H. Takahashi, R. A. Buriti, L. M. Lima, and C. M. Wrasse
Ann. Geophys., 34, 91–96, https://doi.org/10.5194/angeo-34-91-2016, https://doi.org/10.5194/angeo-34-91-2016, 2016
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This paper reports two consecutive mesospheric bores observed in the airglow emissions (OH and OI5577). Both bores propagated to the east and showed similar spectral characteristics. However, the first one exhibited a dark leading front with several trailing waves behind and progressed into a brighter airglow region. However, the second bore, observed in the OH layer, was comprised of several bright waves propagating into a darker airglow region.
M. Sivakandan, I. Paulino, A. Taori, and K. Niranjan
Atmos. Meas. Tech., 9, 93–102, https://doi.org/10.5194/amt-9-93-2016, https://doi.org/10.5194/amt-9-93-2016, 2016
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The small-scale gravity waves are the least understood processes in the middle-atmospheric variability. Using airglow imaging, we provide new measurements of gravity wave propagation over equatorial latitudes in India. We find that propagation of waves is often in the opposite direction to the tropospheric convective regions. These waves are found to have horizontal wavelengths ranging from 12 to 42 km, with the phase velocities in the 20 to 90 km range.
V. F. Andrioli, P. P. Batista, B. R. Clemesha, N. J. Schuch, and R. A. Buriti
Ann. Geophys., 33, 1183–1193, https://doi.org/10.5194/angeo-33-1183-2015, https://doi.org/10.5194/angeo-33-1183-2015, 2015
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Multi-year observations of gravity wave momentum fluxes have been analyzed at three different sites using meteor radar data. This is a first, as no such experimental results on the latitudinal dependence of these parameters at low latitudes had been derived with ground-based instruments in the MLT region before. Until now similar studies had been carried out with satellites and circulation models. Therefore this thematic can be lead to a valuable scientific contribution.
L. R. Araújo, L. M. Lima, P. P. Batista, B. R. Clemesha, and H. Takahashi
Ann. Geophys., 32, 519–531, https://doi.org/10.5194/angeo-32-519-2014, https://doi.org/10.5194/angeo-32-519-2014, 2014
V. F. Andrioli, D. C. Fritts, P. P. Batista, B. R. Clemesha, and D. Janches
Ann. Geophys., 31, 2123–2135, https://doi.org/10.5194/angeo-31-2123-2013, https://doi.org/10.5194/angeo-31-2123-2013, 2013
V. F. Andrioli, D. C. Fritts, P. P. Batista, and B. R. Clemesha
Ann. Geophys., 31, 889–908, https://doi.org/10.5194/angeo-31-889-2013, https://doi.org/10.5194/angeo-31-889-2013, 2013
Related subject area
Subject: Earth's ionosphere & aeronomy | Keywords: Waves and tides
High-time-resolution analysis of meridional tides in the upper mesosphere and lower thermosphere at mid-latitudes measured by the Falkland Islands SuperDARN radar
Identifying gravity waves launched by the Hunga Tonga–Hunga Ha′apai volcanic eruption in mesosphere/lower-thermosphere winds derived from CONDOR and the Nordic Meteor Radar Cluster
A case study of a ducted gravity wave event over northern Germany using simultaneous airglow imaging and wind-field observations
Seasonal evolution of winds, atmospheric tides, and Reynolds stress components in the Southern Hemisphere mesosphere–lower thermosphere in 2019
Migrating tide climatologies measured by a high-latitude array of SuperDARN HF radars
Forcing mechanisms of the migrating quarterdiurnal tide
Investigation of sources of gravity waves observed in the Brazilian equatorial region on 8 April 2005
Characterization of gravity waves in the lower ionosphere using very low frequency observations at Comandante Ferraz Brazilian Antarctic Station
Impact of gravity wave drag on the thermospheric circulation: implementation of a nonlinear gravity wave parameterization in a whole-atmosphere model
Nonlinear forcing mechanisms of the migrating terdiurnal solar tide and their impact on the zonal mean circulation
Climatologies and long-term changes in mesospheric wind and wave measurements based on radar observations at high and mid latitudes
Comparison of gravity wave propagation directions observed by mesospheric airglow imaging at three different latitudes using the M-transform
Seasonal variability of atmospheric tides in the mesosphere and lower thermosphere: meteor radar data and simulations
Gareth Chisham, Andrew J. Kavanagh, Neil Cobbett, Paul Breen, and Tim Barnes
Ann. Geophys., 42, 1–15, https://doi.org/10.5194/angeo-42-1-2024, https://doi.org/10.5194/angeo-42-1-2024, 2024
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Solar tides in the atmosphere are driven by solar heating on the dayside of the Earth. They result in large-scale periodic motion of the upper atmosphere. This motion can be measured by ground-based radars. This paper shows that making measurements at a higher time resolution than the standard operation provides a better description of higher-frequency tidal variations. This will improve the inputs to empirical atmospheric models and the benefits of data assimilation.
Gunter Stober, Alan Liu, Alexander Kozlovsky, Zishun Qiao, Witali Krochin, Guochun Shi, Johan Kero, Masaki Tsutsumi, Njål Gulbrandsen, Satonori Nozawa, Mark Lester, Kathrin Baumgarten, Evgenia Belova, and Nicholas Mitchell
Ann. Geophys., 41, 197–208, https://doi.org/10.5194/angeo-41-197-2023, https://doi.org/10.5194/angeo-41-197-2023, 2023
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The Hunga Tonga–Hunga Ha‘apai volcanic eruption was one of the most vigorous volcanic explosions in the last centuries. The eruption launched many atmospheric waves traveling around the Earth. In this study, we identify these volcanic waves at the edge of space in the mesosphere/lower-thermosphere, leveraging wind observations conducted with multi-static meteor radars in northern Europe and with the Chilean Observation Network De Meteor Radars (CONDOR).
Sumanta Sarkhel, Gunter Stober, Jorge L. Chau, Steven M. Smith, Christoph Jacobi, Subarna Mondal, Martin G. Mlynczak, and James M. Russell III
Ann. Geophys., 40, 179–190, https://doi.org/10.5194/angeo-40-179-2022, https://doi.org/10.5194/angeo-40-179-2022, 2022
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A rare gravity wave event was observed on the night of 25 April 2017 over northern Germany. An all-sky airglow imager recorded an upward-propagating wave at different altitudes in mesosphere with a prominent wave front above 91 km and faintly observed below. Based on wind and satellite-borne temperature profiles close to the event location, we have found the presence of a leaky thermal duct layer in 85–91 km. The appearance of this duct layer caused the wave amplitudes to diminish below 91 km.
Gunter Stober, Diego Janches, Vivien Matthias, Dave Fritts, John Marino, Tracy Moffat-Griffin, Kathrin Baumgarten, Wonseok Lee, Damian Murphy, Yong Ha Kim, Nicholas Mitchell, and Scott Palo
Ann. Geophys., 39, 1–29, https://doi.org/10.5194/angeo-39-1-2021, https://doi.org/10.5194/angeo-39-1-2021, 2021
Willem E. van Caspel, Patrick J. Espy, Robert E. Hibbins, and John P. McCormack
Ann. Geophys., 38, 1257–1265, https://doi.org/10.5194/angeo-38-1257-2020, https://doi.org/10.5194/angeo-38-1257-2020, 2020
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Global-scale wind measurements from the upper regions of the atmosphere are used to isolate those atmospheric waves that follow the apparent motion of the sun over the course of a day. We present 16 years of near-continuous measurements, demonstrating the unique capabilities of the array of high-latitude SuperDARN radars. The validation steps outlined in our work also provide a methodology for future studies using wind measurements from the (expanding) network of SuperDARN radars.
Christoph Geißler, Christoph Jacobi, and Friederike Lilienthal
Ann. Geophys., 38, 527–544, https://doi.org/10.5194/angeo-38-527-2020, https://doi.org/10.5194/angeo-38-527-2020, 2020
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This is an extensive model study to analyze the migrating quarterdiurnal solar tide (QDT) and its forcing mechanisms in the middle atmosphere. We first show a climatology of the QDT amplitudes and examine the contribution of the different forcing mechanisms, including direct solar, nonlinear and gravity wave forcing, on the QDT amplitude. We then investigate the destructive interference between the individual forcing mechanisms.
Oluwakemi Dare-Idowu, Igo Paulino, Cosme A. O. B. Figueiredo, Amauri F. Medeiros, Ricardo A. Buriti, Ana Roberta Paulino, and Cristiano M. Wrasse
Ann. Geophys., 38, 507–516, https://doi.org/10.5194/angeo-38-507-2020, https://doi.org/10.5194/angeo-38-507-2020, 2020
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Some strong gravity wave activity occurred and was observed on 8 April 2005. This work reports the spectral characteristics of these waves using OH airglow images captured by the all-sky imager installed at São João do Cariri (7.4° S, 36.5° W). A preferential propagation direction was observed due to the positioning of the source and also due to the wind filtering effect. Furthermore, the source of these waves was identified by performing reverse-ray tracing analysis.
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.
Yasunobu Miyoshi and Erdal Yiğit
Ann. Geophys., 37, 955–969, https://doi.org/10.5194/angeo-37-955-2019, https://doi.org/10.5194/angeo-37-955-2019, 2019
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Our numerical simulation shows that the drag due to the dissipation and/or breaking of the gravity wave plays an important role in the general circulation in the thermosphere. This means that the parameterization for the gravity wave drag is necessary for numerical simulation in the thermosphere.
Friederike Lilienthal and Christoph Jacobi
Ann. Geophys., 37, 943–953, https://doi.org/10.5194/angeo-37-943-2019, https://doi.org/10.5194/angeo-37-943-2019, 2019
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We analyzed the forcing mechanisms of the migrating terdiurnal solar tide in the middle atmosphere, focusing the impact on the zonal mean circulation. We show that the primary solar forcing is the most dominant one but secondary wave–wave interactions also contribute in the lower thermosphere region. We further demonstrate that small-scale gravity waves can strongly and irregularly influence the amplitude of the terdiurnal tide as well as the background circulation in the thermosphere.
Sven Wilhelm, Gunter Stober, and Peter Brown
Ann. Geophys., 37, 851–875, https://doi.org/10.5194/angeo-37-851-2019, https://doi.org/10.5194/angeo-37-851-2019, 2019
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We report on long-term observations of atmospheric parameters in the mesosphere and lower thermosphere made over the last 2 decades for the northern-latitude locations of Andenes, Juliusruh, and Tavistock. The observations are based on meteor wind measurements and further include the long-term variability of winds, tides, and the kinetic energy of gravity waves and planetary waves. Furthermore, the influence on an 11-year oscillation on the winds and tides is presented.
Septi Perwitasari, Takuji Nakamura, Masaru Kogure, Yoshihiro Tomikawa, Mitsumu K. Ejiri, and Kazuo Shiokawa
Ann. Geophys., 36, 1597–1605, https://doi.org/10.5194/angeo-36-1597-2018, https://doi.org/10.5194/angeo-36-1597-2018, 2018
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We have developed a user-friendly program that can efficiently deal with extensive amounts of airglow data. We have applied this new program to airglow data obtained at different latitudes in polar, midlatitude, and equatorial regions and demonstrated distinct differences in atmospheric gravity wave (AGW) propagation characteristics and energy distribution. We aim to encourage other AGW research groups to use the program and do comparisons to reveal AGW characteristics on a more global scale.
Dimitry Pokhotelov, Erich Becker, Gunter Stober, and Jorge L. Chau
Ann. Geophys., 36, 825–830, https://doi.org/10.5194/angeo-36-825-2018, https://doi.org/10.5194/angeo-36-825-2018, 2018
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Atmospheric tides are produced by solar heating of the lower atmosphere. The tides propagate to the upper atmosphere and ionosphere playing an important role in the vertical coupling. Ground radar measurements of the seasonal variability of tides are compared with global numerical simulations. The agreement with radar data and limitations of the numerical model are discussed. The work represents a first step in modelling the impact of tidal dynamics on the upper atmosphere and ionosphere.
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Short summary
Solar atmospheric tides are natural oscillations of 24, 12, 8... hours that contribute to the circulation of the atmosphere from low to high altitudes. The Sun heats the atmosphere periodically because, mainly, water vapor and ozone absorb solar radiation between the ground and 50 km height during the day. Tides propagate upward and they can be observed in, for example, the wind field. This work presents diurnal tides observed by meteor radars which measure wind between 80 and 100 km height.
Solar atmospheric tides are natural oscillations of 24, 12, 8... hours that contribute to the...
Special issue