Articles | Volume 20, issue 14
https://doi.org/10.5194/acp-20-9115-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-20-9115-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
31 Jul 2020
Research article |
| 31 Jul 2020
| 31 Jul 2020
Representation of the equatorial stratopause semiannual oscillation in global atmospheric reanalyses
Yoshio Kawatani
CORRESPONDING AUTHOR
Japan Agency for Marine-Earth Science and Technology, Yokohama, 236-0001, Japan
Toshihiko Hirooka
Faculty of Science, Kyushu University, Fukuoka, 819-0395, Japan
Kevin Hamilton
International Pacific Research Center, University of Hawaii, Honolulu, HI 96822, USA
Department of Atmospheric Sciences, University of Hawaii, Honolulu, HI 96822, USA
Anne K. Smith
National Center for Atmospheric Research, Boulder, CO 80307, USA
Masatomo Fujiwara
Faculty of Environmental Earth Science, Hokkaido University, Sapporo, 060-0810, Japan
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18 citations as recorded by crossref.
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- Assessment of ERA-5 Temperature Variability in the Middle Atmosphere Using Rayleigh LiDAR Measurements between 2005 and 2020 A. Mariaccia et al. 10.3390/atmos13020242
- Intercomparison of middle atmospheric meteorological analyses for the Northern Hemisphere winter 2009–2010 J. McCormack et al. 10.5194/acp-21-17577-2021
- The added value and potential of long-term radio occultation data for climatological wind field monitoring I. Nimac et al. 10.5194/amt-18-265-2025
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- Global balanced wind derived from SABER temperature and pressure observations and its validations X. Liu et al. 10.5194/essd-13-5643-2021
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- Analysis of Temperature Semi-Annual Oscillations (SAO) in the Middle Atmosphere M. Shangguan & W. Wang 10.3390/rs15030857
- On the Semiannual Formation of Large Scale Three‐Dimensional Vortices at the Stratopause T. O'Kane et al. 10.1029/2020GL090072
- A tropical stratopause precursor for sudden stratospheric warmings N. Koushik et al. 10.1038/s41598-022-06864-7
- Toward Standard Radiosonde Observations of Waves and the Mean State in the 30–40-km Altitude Range Using 3-kg Balloons T. Kinoshita et al. 10.1175/JTECH-D-21-0011.1
- Seasonal Cycle of Gravity Wave Potential Energy Densities from Lidar and Satellite Observations at 54° and 69°N I. Strelnikova et al. 10.1175/JAS-D-20-0247.1
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- The stratosphere: a review of the dynamics and variability N. Butchart 10.5194/wcd-3-1237-2022
- Studies of the Effect of Seasonal Cycle on the Equatorial Quasi-Biennial Oscillation with a Chemistry-Climate Model K. Shibata 10.3390/cli10070099
- The JAGUAR-DAS whole neutral atmosphere reanalysis: JAWARA D. Koshin et al. 10.1186/s40645-024-00674-3
17 citations as recorded by crossref.
- Structure, Trend and Variability of the Semiannual Oscillation in the Equatorial Middle Atmosphere in JRA-3Q and in Satellite Observations K. SHIBATA & H. NAOE 10.2151/jmsj.2025-017
- Infrasound Thunder Detections across 15 Years over Ivory Coast: Localization, Propagation, and Link with the Stratospheric Semi-Annual Oscillation T. Farges et al. 10.3390/atmos12091188
- Assessment of ERA-5 Temperature Variability in the Middle Atmosphere Using Rayleigh LiDAR Measurements between 2005 and 2020 A. Mariaccia et al. 10.3390/atmos13020242
- Intercomparison of middle atmospheric meteorological analyses for the Northern Hemisphere winter 2009–2010 J. McCormack et al. 10.5194/acp-21-17577-2021
- The added value and potential of long-term radio occultation data for climatological wind field monitoring I. Nimac et al. 10.5194/amt-18-265-2025
- Does the coupling of the semiannual oscillation with the quasi-biennial oscillation provide predictability of Antarctic sudden stratospheric warmings? V. Nordström & A. Seppälä 10.5194/acp-21-12835-2021
- Global balanced wind derived from SABER temperature and pressure observations and its validations X. Liu et al. 10.5194/essd-13-5643-2021
- Opposite Contributions of Stationary and Traveling Planetary Waves in the Northern Hemisphere Winter Middle Atmosphere K. Iwao & T. Hirooka 10.1029/2020JD034195
- Analysis of Temperature Semi-Annual Oscillations (SAO) in the Middle Atmosphere M. Shangguan & W. Wang 10.3390/rs15030857
- On the Semiannual Formation of Large Scale Three‐Dimensional Vortices at the Stratopause T. O'Kane et al. 10.1029/2020GL090072
- A tropical stratopause precursor for sudden stratospheric warmings N. Koushik et al. 10.1038/s41598-022-06864-7
- Toward Standard Radiosonde Observations of Waves and the Mean State in the 30–40-km Altitude Range Using 3-kg Balloons T. Kinoshita et al. 10.1175/JTECH-D-21-0011.1
- Seasonal Cycle of Gravity Wave Potential Energy Densities from Lidar and Satellite Observations at 54° and 69°N I. Strelnikova et al. 10.1175/JAS-D-20-0247.1
- On the Temperature-Depleted Layer at 30-36 km Altitude Observed by High-Altitude Radiosonde Observations in Okinawa in September 2022 T. Kinoshita et al. 10.2151/sola.2024-021
- The semiannual oscillation (SAO) in the tropical middle atmosphere and its gravity wave driving in reanalyses and satellite observations M. Ern et al. 10.5194/acp-21-13763-2021
- The stratosphere: a review of the dynamics and variability N. Butchart 10.5194/wcd-3-1237-2022
- Studies of the Effect of Seasonal Cycle on the Equatorial Quasi-Biennial Oscillation with a Chemistry-Climate Model K. Shibata 10.3390/cli10070099
1 citations as recorded by crossref.
Latest update: 19 Oct 2025
Short summary
This paper reports on a project to compare the representation of the semiannual oscillation (SAO) among six major global atmospheric reanalyses and with recent satellite observations. The differences among the zonal mean zonal wind as represented by the various reanalyses display a prominent equatorial maximum that increases with height. It is shown that assimilation of satellite temperature measurements is crucial for the realistic representation of the tropical upper stratospheric circulation.
This paper reports on a project to compare the representation of the semiannual oscillation...
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