Theoretical investigation of the influence of a quasi‐2‐day wave on nonlinear photochemical oscillations in the mesopause region

Куликов, Михаил

doi:10.1029/2005jd006845

Cited by 19 publications

(14 citation statements)

References 26 publications

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“…Traces of QTDWs can also be found in atmospheric H 2 O, carbon monoxide, OH emission, and height of the F2 layer (Wu et al, 1993;Randel, 1994;Forbes and Zhang, 1997;Limpasuvan and Wu, 2003;Limpasuvan et al, 2005;Tunbridge et al, 2011;Pedatella and Forbes, 2012). Moreover, QTDWs are found to be important in photochemical processes in the mesopause region (Kulikov, 2007). Many studies have suggested that QTDWs can frequently interact with solar tides (Palo et al, 1999;Salby and Callaghan, 2008;McCormack et al, 2010;Babu et al, 2011;Forbes and Moudden, 2012), other PWs (Babu et al, 2011) and gravity waves (GWs) (Palo et al, 1999).…”

Section: Introductionmentioning

confidence: 99%

Global climatological variability of quasi-two-day waves revealed by TIMED/SABER observations

et al. 2013

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This paper presents characteristics of quasi-two-day waves (QTDWs) in the mesosphere and lower thermosphere (MLT) between 52° S and 52° N from 2002 to 2011 using TIMED/SABER temperature data. Spectral analysis suggests that dominant QTDW components at mid-high latitudes of the Southern Hemisphere (SH) and the Northern Hemisphere (NH) are (2.13, W3) and (2.04, W4), respectively. The most remarkable QTDW is (2.13, W3), which happened in the southern summer of 2002–2003 at 32° S from 60 to 90 km in altitude. Its downward phase propagation indicates upward propagation of the wave energy and a potential source region below 60 km. Analysis of horizontal wind fields in the same period shows the westward and southward propagation of (2.13, W3) and a possible reflection region above 90 km. Fundamental parameters of QTDWs present significant interhemispheric differences and interannual variations in statistical analysis. Amplitudes in the SH are twice larger than that in the NH, and vertical wavelengths are a little longer in the SH. QTDWs may endure stronger dissipation in southern summer because of shorter durations of their attenuation stages. Impact of the equatorial quasi-biennial-oscillation (QBO) on QTDWs can extend to mid-high latitudes of both hemispheres. It seems easier for QTDWs to propagate upward in the equatorial QBO's westerly phase in the lower stratosphere and easterly phase in the middle stratosphere. Interannual variations of QTDW strength may be influenced by solar activity as well. Strengths of QTDWs appear to be stronger (weaker) in the solar maximum (minimum)

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Section: Introductionmentioning

confidence: 99%

Global climatological variability of quasi-two-day waves revealed by TIMED/SABER observations

et al. 2013

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“…In the MLT they can reach large amplitudes and are important because they can modulate the amplitude of atmospheric tides (e.g., Teitelbaum and Vial, 1991;Mitchell et al, 1996;Palo et al, 1999;Pancheva et al, 2004), influence the transport and photochemistry of minor species (e.g., Kulikov, 2007), modulate the fluxes of gravitywave momentum that drives the planetary-scale circulation of the upper middle atmosphere (e.g., Forbes et al, 1991;Miyahara and Forbes, 1991;Thayaparan et al, 1995;Nakamura et al, 1997;Manson et al, 2003) and cause perturbations in temperatures that can modulate the occurrence of Polar Mesospheric Clouds (e.g., Espy and Witt, 1996;Merkel et al, 2003Merkel et al, , 2008Nielsen et al, 2010) and Polar Mesospheric Summer Echoes (e.g., Morris et al, 2009). A major component of the planetary-wave field in the MLT is the so-called normal modes that manifest as the 2-, 5-, 10-and 16-day planetary waves (e.g., Salby, 1981a,b).…”

Section: K a Day Et Al: Mean Winds Temperatures And The 16-and 5-dmentioning

confidence: 99%

Mean winds, temperatures and the 16- and 5-day planetary waves in the mesosphere and lower thermosphere over Bear Lake Observatory (42° N, 111° W)

2012

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Abstract. Atmospheric temperatures and winds in the mesosphere and lower thermosphere have been measured simultaneously using the Aura satellite and a meteor radar at Bear Lake Observatory (42 • N, 111 • W), respectively. The data presented in this study is from the interval March 2008 to July 2011.The mean winds observed in the summer-time over Bear Lake Observatory show the meridional winds to be equatorward at meteor heights during April-August and to reach monthly-mean velocities of −12 m s −1 . The mean winds are closely related to temperatures in this region of the atmosphere and in the summer the coldest mesospheric temperatures occur about the same time as the strongest equatorward meridional winds. The zonal winds are eastward through most of the year and in the summer strong eastward zonal wind shears of up to ∼4.5 m s −1 km −1 are present. However, westward winds are observed at the upper heights in winter and sometimes during the equinoxes. Considerable inter-annual variability is observed in the mean winds and temperatures.Comparisons of the observed winds with URAP and HWM-07 reveal some large differences. Our radar zonal wind observations are generally more eastward than predicted by the URAP model zonal winds. Considering the radar meridional winds, in comparison to HWM-07 our observations reveal equatorward flow at all meteor heights in the summer whereas HWM-07 suggests that only weakly equatorward, or even poleward flows occur at the lower heights. However, the zonal winds observed by the radar and modelled by HWM-07 are generally similar in structure and strength.Signatures of the 16-and 5-day planetary waves are clearly evident in both the radar-wind data and Aura-temperature data. Short-lived wave events can reach large amplitudes of up to ∼15 m s −1 and 8 K and 20 m s −1 and 10 K for the 16-and 5-day waves, respectively. A clear seasonal and shortterm variability are observed in the 16-and 5-day planetary wave amplitudes. The 16-day wave reaches largest amplitude in winter and is also present in summer, but with smaller amplitudes. The 5-day wave reaches largest amplitude in winter and in late summer. An inter-annual variability in the amplitude of the planetary waves is evident in the four years of observations. Some 41 episodes of large-amplitude wave occurrence are identified. Temperature and wind amplitudes for these episodes, A T and A W , that passed the Student T-test were found to be related by, A T = 0.34 A W and A T = 0.62 A W for the 16-and 5-day wave, respectively.

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“…The most prominent planetary wave component in the mesosphere is the quasi-2-day wave (Q2DW) with amplitudes larger than 10 K in temperature and wind amplitudes of several tens of m s −1 in the mid-to low-latitude summer mesosphere (Tunbridge et al, 2011;Wu et al, 1993). The QT2W can interact with atmospheric tides and influence the variability of polar mesospheric clouds (Merkel et al, 2009;Kulikov, 2007). Most observational studies of the Q2DW focus on the summertime Q2DW with the largest amplitudes coming from westward propagating zonal wave numbers W2, W3 and W4 (e.g.…”

Section: Introductionmentioning

confidence: 99%

Signatures of the 2-day wave and sudden stratospheric warmings in Arctic water vapour observed by ground-based microwave radiometry

Tschanz

Kämpfer

2015

Atmos. Chem. Phys.

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Abstract. The ground-based microwave radiometer MIAWARA-C recorded the upper stratospheric and lower mesospheric water vapour distribution continuously from June 2011 to March 2013 above the Arctic station of Sodankylä, Finland (67.4 • N, 26.6 • E) without major interruptions and offers water vapour profiles with temporal resolution of 1 h for average conditions. The water vapour time series of MIAWARA-C shows strong periodic variations in both summer and winter related to the quasi-2-day wave. Above 0.1 hPa the amplitudes are strongest in summer. The stratospheric wintertime 2-day wave is pronounced for both winters on altitudes below 0.1 hPa and reaches a maximum amplitude of 0.8 ppmv in November 2011. Over the measurement period, the instrument monitored the changes in water vapour linked to two sudden stratospheric warmings in early 2012 and 2013. Based on the water vapour measurements, the descent rate in the vortex after the warmings is 364 m d −1 for 2012 and 315 m d −1 for 2013.

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Theoretical investigation of the influence of a quasi‐2‐day wave on nonlinear photochemical oscillations in the mesopause region

Cited by 19 publications

References 26 publications

Global climatological variability of quasi-two-day waves revealed by TIMED/SABER observations

Global climatological variability of quasi-two-day waves revealed by TIMED/SABER observations

Mean winds, temperatures and the 16- and 5-day planetary waves in the mesosphere and lower thermosphere over Bear Lake Observatory (42° N, 111° W)

Signatures of the 2-day wave and sudden stratospheric warmings in Arctic water vapour observed by ground-based microwave radiometry

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