Academic literature on the topic 'Quasi-biennial Oscillation'

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Journal articles on the topic "Quasi-biennial Oscillation"

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Baldwin, M. P., L. J. Gray, T. J. Dunkerton, et al. "The quasi-biennial oscillation." Reviews of Geophysics 39, no. 2 (2001): 179–229. http://dx.doi.org/10.1029/1999rg000073.

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Semin, Benoît, and François Pétrelis. "Quasi-biennial oscillation: laboratory experiments." Comptes Rendus. Physique 25, S3 (2024): 1–25. http://dx.doi.org/10.5802/crphys.195.

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Baldwin, Mark P., and Timothy J. Dunkerton. "Quasi-Biennial Oscillation above 10 MB." Geophysical Research Letters 18, no. 7 (1991): 1205–8. http://dx.doi.org/10.1029/91gl01333.

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Jain, Kiran, Partha Chowdhury, and Sushanta C. Tripathy. "Helioseismic Investigation of Quasi-biennial Oscillation Source Regions." Astrophysical Journal 959, no. 1 (2023): 16. http://dx.doi.org/10.3847/1538-4357/ad045c.

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Abstract We studied the temporal evolution of quasi-biennial oscillations (QBOs) using acoustic mode oscillation frequencies from the Global Oscillation Network Group. The data used here span more than 25 yr, covering solar cycles 23 and 24 and the ascending phase of cycle 25. The analysis reveals that QBO-like signals are present in both the cycles, but with different periods. The dominant QBO period in cycle 23 is found to be about 2 yr, while it is about 3 yr in cycle 24. Furthermore, the quasi-biennial oscillatory signals are present only during the ascending and high-activity phases of cy
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Kwan, Kok Foo, and Azizan Abu Samah. "A conceptual model relating the quasi-biennial oscillation and the tropospheric biennial oscillation." International Journal of Climatology 23, no. 3 (2003): 347–62. http://dx.doi.org/10.1002/joc.876.

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Anstey, James A., John F. Scinocca, and Martin Keller. "Simulating the QBO in an Atmospheric General Circulation Model: Sensitivity to Resolved and Parameterized Forcing." Journal of the Atmospheric Sciences 73, no. 4 (2016): 1649–65. http://dx.doi.org/10.1175/jas-d-15-0099.1.

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Abstract The quasi-biennial oscillation (QBO) of tropical stratospheric zonal winds is simulated in an atmospheric general circulation model and its sensitivity to model parameters is explored. Vertical resolution in the lower tropical stratosphere finer than ≈1 km and sufficiently strong forcing by parameterized nonorographic gravity wave drag are both required for the model to exhibit a QBO-like oscillation. Coarser vertical resolution yields oscillations that are seasonally synchronized and driven mainly by gravity wave drag. As vertical resolution increases, wave forcing in the tropical lo
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Gray, Lesley J., James A. Anstey, Yoshio Kawatani, Hua Lu, Scott Osprey, and Verena Schenzinger. "Surface impacts of the Quasi Biennial Oscillation." Atmospheric Chemistry and Physics 18, no. 11 (2018): 8227–47. http://dx.doi.org/10.5194/acp-18-8227-2018.

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Abstract. Teleconnections between the Quasi Biennial Oscillation (QBO) and the Northern Hemisphere zonally averaged zonal winds, mean sea level pressure (mslp) and tropical precipitation are explored. The standard approach that defines the QBO using the equatorial zonal winds at a single pressure level is compared with the empirical orthogonal function approach that characterizes the vertical profile of the equatorial winds. Results are interpreted in terms of three potential routes of influence, referred to as the tropical, subtropical and polar routes. A novel technique is introduced to sepa
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Lu, Bei-Wei, Lionel Pandolfo, and Kevin Hamilton. "Nonlinear Representation of the Quasi-Biennial Oscillation." Journal of the Atmospheric Sciences 66, no. 7 (2009): 1886–904. http://dx.doi.org/10.1175/2008jas2967.1.

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Abstract A nonlinear principal component analysis (NLPCA) is applied to monthly mean zonal wind observations from January 1956 through December 2007 taken at seven pressure levels between 10 and 70 hPa in the stratosphere near the equator to represent the well-known quasi-biennial oscillation (QBO) and investigate its variability and structure. The NLPCA is conducted using a simplified two–hidden layer feed-forward neural network that alleviates the problems of nonuniqueness of solutions and data overfitting that plague nonlinear techniques of principal component analysis. The QBO is used as a
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Rangarajan, G. K. "Quasi-biennial oscillation in geomagnetic disturbance field." Journal of Earth System Science 94, no. 1 (1985): 29–34. http://dx.doi.org/10.1007/bf02863406.

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Fernández, Laura I., Amalia M. Meza, and Ana G. Elías. "Quasi-biennial oscillation in GPS VTEC measurements." Advances in Space Research 54, no. 2 (2014): 161–67. http://dx.doi.org/10.1016/j.asr.2014.03.027.

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Dissertations / Theses on the topic "Quasi-biennial Oscillation"

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Ruth, Sarah L. "The quasi-biennial oscillation in the middle atmosphere." Thesis, University of Oxford, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.303598.

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Oliver, Nordvall. "Quasi-Biennial Oscillation och dess påverkan på klimatet i troposfären." Thesis, Uppsala universitet, Luft-, vatten och landskapslära, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-353228.

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The Quasi-Biennial Oscillation (QBO) is the strongest phenomena influencing the stratopheric (~15-50 km height) circulation over the equator. QBO has two phases of downward propagating easterly and westerly winds, which has a total period of approximately 28 months and the phase is defined by the wind direction between the airpressure 25-50 hPa, which is roughly at a height of 30 km. QBO is induced by atmospheric gravity waves originating from the troposphere (~0-15 km height) and are generated by a plethora of sources, such as tropical convection and wind shear. The winds propagate downward a
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Phelps, Jason A. "Spring Precipitation in Intermountain West Influenced by Quasi-Biennial Oscillation." DigitalCommons@USU, 2019. https://digitalcommons.usu.edu/etd/7475.

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Unusually wet spring seasons in the Intermountain West (IW) have been linked to a wind fluctuation in higher levels of the atmosphere near the equator. Strong westerly winds during October-January often result in unusually wet conditions in the following spring. Average winds near the equator at 75,000 feet above the earth’s surface can be split into different categories according to wind direction: westerly (positive), easterly (negative), and transitional. Composites of winter and spring precipitation anomalies based on these different categories show that strong westerly winds occur in Octo
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Bao, Xiaoping. "Variation of the stratospheric ozone layer height and the quasi-biennial oscillation." Diss., Georgia Institute of Technology, 1996. http://hdl.handle.net/1853/27999.

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Watson, Peter Alan Gazzi. "The influence of the quasi-biennial oscillation on the stratospheric polar vortices." Thesis, University of Oxford, 2013. http://ora.ox.ac.uk/objects/uuid:e35d4833-8368-4101-b1fb-17b68c716ae0.

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The mean strengths of the wintertime stratospheric polar vortices are known to be related to the phase of the quasi-biennial oscillation (QBO) in the tropical stratosphere from circulation statistics - the "Holton-Tan relationship". The principal topic of this thesis is improving understanding of the mechanism behind the QBO's influence. Following the example of previous studies, the QBO influence on the Northern Hemisphere (NH) extratropics on monthly time scales in an observational reanalysis is examined, and is shown to closely resemble the stratospheric Northern annular mode (NAM). It is a
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Soukharev, Boris E., and Lon L. Hood. "Possible solar modulation of the equatorial quasi-biennial oscillation: Additional statistical evidence." AMER GEOPHYSICAL UNION, 2001. http://hdl.handle.net/10150/624003.

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Although the quasi-biennial oscillation (QBO) in the equatorial zonal wind is dominantly driven by wave forcing originating in the troposphere, a recent study suggests that certain properties of the QBO may vary slightly on the 11-year solar cycle timescale [Salby and Callaghan, 2000]. Here we report further statistical investigation using both equatorial wind data for levels from 50 to 1 hPa and longterm proxy solar ultraviolet flux time series (10.7-cm solar radio flux and sunspot numbers). Spectral analysis of the solar time series yields evidence for a significant spectral peak at periods
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Jacobi, Christoph. "The quasi 16-day wave in the summer midlatitude mesopause region and its dependence on the equatorial quasi-biennial oscillation." Universitätsbibliothek Leipzig, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-213442.

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Aus täglichen Analysen des sommerlichen zonalen Grundwindes im Mesopausenbereich, der am Observatorium Collm der Universität Leipzig gemessen wurde, werden niederfrequente Variationen im Zeitbereich planetarer Wellen (10 - 20 Tage) bestimmt. Obwohl die direkte Ausbreitung derartiger Wellen durch die stratosphärischen und mesosphärischen Ostwinde verhindert wird, werden in manchen Jahren trotzdem Oszillationen gemessen, die mit planetaren Wellen im Zusammenhang stehen können. Dies unterstützt die Theorie, daß sich planetare Wellen von der Winterhalbkugel entlang der Zonen schwachen Windes bis i
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Jacobi, Christoph. "The quasi 16-day wave in the summer midlatitude mesopause region and its dependence on the equatorial quasi-biennial oscillation." Wissenschaftliche Mitteilungen des Leipziger Instituts für Meteorologie ; 9 = Meteorologische Arbeiten aus Leipzig ; 3 (1998), S. 117-129, 1998. https://ul.qucosa.de/id/qucosa%3A15084.

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Aus täglichen Analysen des sommerlichen zonalen Grundwindes im Mesopausenbereich, der am Observatorium Collm der Universität Leipzig gemessen wurde, werden niederfrequente Variationen im Zeitbereich planetarer Wellen (10 - 20 Tage) bestimmt. Obwohl die direkte Ausbreitung derartiger Wellen durch die stratosphärischen und mesosphärischen Ostwinde verhindert wird, werden in manchen Jahren trotzdem Oszillationen gemessen, die mit planetaren Wellen im Zusammenhang stehen können. Dies unterstützt die Theorie, daß sich planetare Wellen von der Winterhalbkugel entlang der Zonen schwachen Windes bis i
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Hood, Lon L. "QBO/solar modulation of the boreal winter Madden-Julian oscillation: A prediction for the coming solar minimum." AMER GEOPHYSICAL UNION, 2017. http://hdl.handle.net/10150/624342.

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The Madden-Julian oscillation (MJO), also known as the 30-60day oscillation, is the strongest of the intraseasonal climate oscillations in the tropics and has significant derivative effects on extratropical circulation and intraseasonal climate. It has recently been shown that the stratospheric quasi-biennial oscillation (QBO) modulates the amplitude of the boreal winter MJO such that MJO amplitudes are larger on average during the easterly phase (QBOE) than during the westerly phase (QBOW). A major possible mechanism is the decrease in static stability in the lowermost stratosphere under QBOE
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Piani, Claudio. "A numerical study of three dimensional gravity waves triggered by deep tropical convection and their role in the quasi biennial oscillation /." Thesis, Connect to this title online; UW restricted, 2000. http://hdl.handle.net/1773/10070.

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Books on the topic "Quasi-biennial Oscillation"

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Martin, Zane Karas. The Interaction of the Madden-Julian Oscillation and the Quasi-Biennial Oscillation in Observations and a Hierarchy of Models. [publisher not identified], 2020.

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Book chapters on the topic "Quasi-biennial Oscillation"

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Labitzke, Karin G., and Harry van Loon. "The Quasi-Biennial Oscillation (QBO)." In The Stratosphere. Springer Berlin Heidelberg, 1999. http://dx.doi.org/10.1007/978-3-642-58541-8_4.

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Tung, Ka Kit, and Hu Yang. "On Global Quasi-Biennial Oscillation in Column Ozone." In Coupling Processes in the Lower and Middle Atmosphere. Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-011-1594-0_1.

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Labitzke, Karin. "Die ungefähr zweijährige Schwingung Quasi-Biennial Oscillation (QBO)." In Die Stratosphäre. Springer Berlin Heidelberg, 1999. http://dx.doi.org/10.1007/978-3-642-59989-7_4.

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Holton, James R. "The Role of the Quasi-Biennial Oscillation in Stratospheric Dehydration." In A Half Century of Progress in Meteorology: A Tribute to Richard Reed. American Meteorological Society, 2003. http://dx.doi.org/10.1007/978-1-878220-69-1_5.

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Ling, Xiude, and Julius London. "A Theoretical Study of the Quasi-Biennial Oscillation in the Tropical Stratosphere." In Atmospheric Ozone. Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-009-5313-0_11.

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Daultrey, S. "The Influences of the North Atlantic Oscillation, the EL Niño/Southern Oscillation and the Quasi-Biennial Oscillation on Winter Precipitation in Ireland." In The GeoJournal Library. Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-011-5676-9_12.

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Holton, James R. "The Quasi-Biennial Oscillation in the Earth’s Atmosphere and its Links to Longer Period Variability." In The Solar Engine and Its Influence on Terrestrial Atmosphere and Climate. Springer Berlin Heidelberg, 1994. http://dx.doi.org/10.1007/978-3-642-79257-1_16.

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Bazilevskaya, G., A. M. Broomhall, Y. Elsworth, and V. M. Nakariakov. "A Combined Analysis of the Observational Aspects of the Quasi-biennial Oscillation in Solar Magnetic Activity." In Space Sciences Series of ISSI. Springer New York, 2015. http://dx.doi.org/10.1007/978-1-4939-2584-1_12.

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Teitelbaum, H. "The Quasi-Biennial Oscillation Observed in the Semidiurnal Ground Pressure Data and in the Ionospheric F Layer." In The Solar Engine and Its Influence on Terrestrial Atmosphere and Climate. Springer Berlin Heidelberg, 1994. http://dx.doi.org/10.1007/978-3-642-79257-1_17.

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Brinkhoff, Lena A., Alexei Rozanov, René Hommel, et al. "Ten-Year SCIAMACHY Stratospheric Aerosol Data Record: Signature of the Secondary Meridional Circulation Associated with the Quasi-Biennial Oscillation." In Towards an Interdisciplinary Approach in Earth System Science. Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-13865-7_6.

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Conference papers on the topic "Quasi-biennial Oscillation"

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Sargsyan, Khachik, Bert Debusschere, and Michael Eldred. "Surrogate-based calibration for the quasi-biennial oscillation." In SIAM Conference on Uncertainty Quantification - Trieste, , Italy - February - 2024. US DOE, 2024. https://doi.org/10.2172/2540427.

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Sargsyan, Khachik, Bert Debusschere, and Michael Eldred. "Surrogate-Accelerated Parameter Optimization for the Quasi-Biennial Oscillation." In SIAM Conference on Uncertainty Quantification - Trieste, , Italy - February - 2024. US DOE, 2024. https://doi.org/10.2172/2540415.

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Izzaty Ismail, Wan Nur, Nurul Shazana Abdul Hamid, and Mardina Abdullah. "Impact of the Quasi Biennial Oscillation on the EEJ Intensity." In 2021 7th International Conference on Space Science and Communication (IconSpace). IEEE, 2021. http://dx.doi.org/10.1109/iconspace53224.2021.9768721.

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Shibaev, I. G. "PARAMETRIZATION OF THE ASCENDING BRANCH OF SOLAR CYCLES WITHOUT «QUASI-BIENNIAL OSCILLATION»." In All-Russia Conference on Solar and Solar-Terrestrial Physics. The Central Astronomical Observatory of the Russian Academy of Sciences at Pulkovo, 2022. http://dx.doi.org/10.31725/0552-5829-2022-311-314.

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Shi, Chunhua, Bin Zheng, Yuejuan Chen, and Renjun Zhou. "An influence of quasi-biennial oscillation on the water vapor in tropic stratosphere." In Optical Engineering + Applications, edited by Mitchell D. Goldberg, Hal J. Bloom, Philip E. Ardanuy, and Allen H. Huang. SPIE, 2008. http://dx.doi.org/10.1117/12.795918.

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Díaz, Diana, Diana Díaz, Nancy Villegas, and Nancy Villegas. "CANONICAL CORRELATION AMONG LARGE SCALE OSCILLATIONS, TEMPERATURE AND PRECIPITATION IN COASTAL REGIONS OF COLOMBIA." In Managing risks to coastal regions and communities in a changing world. Academus Publishing, 2017. http://dx.doi.org/10.31519/conferencearticle_5b1b93a05a4f25.66586448.

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This study examines relationships between available surface meteorology variables and climatic oscillations by using canonical correlation analysis (CCA). Canonical loadings and cross loadings from CCA are evaluated for meteorological stations located over coastal regions of Colombia. The tests, used for these studies, consider the temperature, the precipitation data, three of the main oscillations – the Ocean Niño Index (ONI), North Atlantic Oscillation (NAO), and the Quasi-biennial oscillation (QBO). The results show the power of the statistical method used to identify associations on the da
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Díaz, Diana, Diana Díaz, Nancy Villegas, and Nancy Villegas. "CANONICAL CORRELATION AMONG LARGE SCALE OSCILLATIONS, TEMPERATURE AND PRECIPITATION IN COASTAL REGIONS OF COLOMBIA." In Managing risks to coastal regions and communities in a changing world. Academus Publishing, 2017. http://dx.doi.org/10.21610/conferencearticle_58b4316f0ce3f.

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This study examines relationships between available surface meteorology variables and climatic oscillations by using canonical correlation analysis (CCA). Canonical loadings and cross loadings from CCA are evaluated for meteorological stations located over coastal regions of Colombia. The tests, used for these studies, consider the temperature, the precipitation data, three of the main oscillations – the Ocean Niño Index (ONI), North Atlantic Oscillation (NAO), and the Quasi-biennial oscillation (QBO). The results show the power of the statistical method used to identify associations on the da
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Burlakov, Vladimir, Oleg Bazhenov, Sergey Dolgii, Andrey Elnikov, Vladimir Zuev, and Aleksey Nevzorov. "Quasi-biennial oscillation in variations of vertical distribution of midlatitude stratospheric ozone and aerosol." In SPIE Proceedings, edited by Gennadii G. Matvienko and Victor A. Banakh. SPIE, 2006. http://dx.doi.org/10.1117/12.723236.

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Yadav, Sneha, C. Vineeth, K. K. Kumar, R. K. Choudhary, Tarun K. Pant, and Surendra Sunda. "Role of the phase of Quasi-Biennial Oscillation in modulating the influence of SSW on Equatorial Ionosphere." In 2019 URSI Asia-Pacific Radio Science Conference (AP-RASC). IEEE, 2019. http://dx.doi.org/10.23919/ursiap-rasc.2019.8738274.

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Zuev, Vladimir V., Andrey V. Elnikov, and Vladimir D. Burlakov. "Manifestation of quasi-biennial oscillation in time behaviors of integrated aerosol backscattering coefficient and total ozone over Tomsk." In SPIE Proceedings, edited by Gennadii G. Matvienko and Vladimir P. Lukin. SPIE, 2004. http://dx.doi.org/10.1117/12.606337.

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Reports on the topic "Quasi-biennial Oscillation"

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Covey, C. The Quasi-Biennial Oscillation in Model-Simulated and Observed Equatorial Temperature of the Lower Stratosphere. Office of Scientific and Technical Information (OSTI), 2018. http://dx.doi.org/10.2172/1490952.

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