Planetary Wave Spectrum in the Stratosphere-Mesosphere during Sudden Stratospheric Warming 2018

The planetary wave activity in the stratosphere–mesosphere during the Arctic major Sudden Stratospheric Warming (SSW) in February 2018 is discussed on the basis of microwave radiometer (MWR) measurements of carbon monoxide (CO) above Kharkiv, Ukraine (50.0° N, 36.3° E) and the Aura Microwave Limb Sounder (MLS) measurements of CO, temperature and geopotential heights. From the MLS data, eastward and westward migrations of wave 1/wave 2 spectral components were differentiated, to which less attention was paid in previous studies. Abrupt changes in zonal wave spectra occurred with the zonal wind reversal near 10 February 2018. Eastward wave 1 and wave 2 were observed before the SSW onset and disappeared during the SSW event, when westward wave 1 became dominant. Wavelet power spectra of mesospheric CO variations showed statistically significant periods of 20–30 days using both MWR and MLS data. Although westward wave 1 in the mesosphere dominated with the onset of the SSW 2018, it developed independently of stratospheric dynamics. Since the propagation of upward planetary waves was limited in the easterly zonal flow in the stratosphere during SSW, forced planetary waves in the mid-latitude mesosphere may exist due to the instability of the zonal flow.

[1]  Yuke Wang,et al.  Comparison of Major Sudden Stratospheric Warming Impacts on the Mid-Latitude Mesosphere Based on Local Microwave Radiometer CO Observations in 2018 and 2019 , 2020, Remote. Sens..

[2]  P. K. Rajesh,et al.  Local‐Time and Vertical Characteristics of Quasi‐6‐Day Oscillation in the Ionosphere During the 2019 Antarctic Sudden Stratospheric Warming , 2020, Geophysical Research Letters.

[3]  J. Knight,et al.  Forecasting extreme stratospheric polar vortex events , 2020, Nature Communications.

[4]  Zheng Ma,et al.  Comparison of stratospheric evolution during the major sudden stratospheric warming events in 2018 and 2019 , 2020 .

[5]  Craig S. Long,et al.  Differences between the 2018 and 2019 stratospheric polar vortex split events , 2020, Quarterly Journal of the Royal Meteorological Society.

[6]  M. Hegglin,et al.  Sudden Stratospheric Warmings , 2020, Reviews of Geophysics.

[7]  G. Milinevsky,et al.  Early indications of anomalous behaviour in the 2019 spring ozone hole over Antarctica , 2019, International Journal of Remote Sensing.

[8]  Siyu Li,et al.  Statistical Characteristics of Major Sudden Stratospheric Warming Events in CESM1-WACCM: A Comparison with the JRA55 and NCEP/NCAR Reanalyses , 2019, Atmosphere.

[9]  G. Milinevsky,et al.  Winter 2018 major sudden stratospheric warming impact on midlatitude mesosphere from microwave radiometer measurements , 2019, Atmospheric Chemistry and Physics.

[10]  Haishan Chen,et al.  The Stratospheric Sudden Warming Event in February 2018 and its Prediction by a Climate System Model , 2018, Journal of Geophysical Research: Atmospheres.

[11]  Alexander Ruzmaikin,et al.  Solar cycle variations in mesospheric carbon monoxide , 2018 .

[12]  O. Martius,et al.  Rossby Wave Propagation into the Northern Hemisphere Stratosphere: The Role of Zonal Phase Speed , 2018 .

[13]  Amy H. Butler,et al.  Optimizing the Definition of a Sudden Stratospheric Warming , 2018 .

[14]  Amy H. Butler,et al.  A sudden stratospheric warming compendium , 2016 .

[15]  Rolando R. Garcia,et al.  On the composite response of the MLT to major sudden stratospheric warming events with elevated stratopause , 2016 .

[16]  P. Espy,et al.  Observations of planetary waves in the mesosphere-lower thermosphere during stratospheric warming events , 2015, 1611.09068.

[17]  Amy H. Butler,et al.  Defining Sudden Stratospheric Warmings , 2015 .

[18]  M. Kozubek,et al.  Northern Hemisphere stratospheric winds in higher midlatitudes: longitudinal distribution and long-term trends , 2015 .

[19]  Jinggao Hu,et al.  Occurrence of Winter Stratospheric Sudden Warming Events and the Seasonal Timing of Spring Stratospheric Final Warming , 2014 .

[20]  L. Chang,et al.  Secondary planetary waves in the middle and upper atmosphere following the stratospheric sudden warming event of January 2012 , 2013 .

[21]  R. A. Plumb.  Planetary Waves and the Extratropical Winter Stratosphere , 2013 .

[22]  L. Polvani,et al.  Stratospheric Polar Vortices , 2013 .

[23]  Axel Murk,et al.  First middle-atmospheric zonal wind profile measurements with a new ground-based microwave Doppler-spectro-radiometer , 2012 .

[24]  G. Nikulin,et al.  A comparative study of the major sudden stratospheric warmings in the Arctic winters 2003/2004–2009/2010 , 2012 .

[25]  B. Thurairajah,et al.  Wind and temperature response of midlatitude mesopause region to the 2009 Sudden Stratospheric Warming , 2012 .

[26]  G. Beig.  Long-term trends in the temperature of the mesosphere/lower thermosphere region: 2. Solar response , 2011 .

[27]  James R. Drummond,et al.  Vertical and interhemispheric links in the stratosphere-mesosphere as revealed by the day-to-day variability of Aura-MLS temperature data , 2009 .

[28]  Michael J. Schwartz,et al.  Aura Microwave Limb Sounder observations of dynamics and transport during the record‐breaking 2009 Arctic stratospheric major warming , 2009 .

[29]  Dong L. Wu,et al.  Title : Validation of the Aura Microwave Limb Sounder Temperature and Geopotential Height Measurements , 2007 .

[30]  S. Kawamura,et al.  Latitudinal wave coupling of the stratosphere and mesosphere during the major stratospheric warming in 2003/2004 , 2008 .

[31]  R. K. Scott,et al.  The Antarctic stratospheric sudden warming of 2002: A self‐tuned resonance? , 2006 .

[32]  James M. Russell,et al.  Large-Scale Waves in the Mesosphere and Lower Thermosphere Observed by SABER , 2005 .

[33]  H. Nakamura,et al.  Tropospheric influence on the diminished Antarctic ozone hole in September 2002 , 2004 .

[34]  Costas Varotsos,et al.  The extraordinary events of the major, sudden stratospheric warming, the diminutive antarctic ozone hole, and its split in 2002 , 2004, Environmental science and pollution research international.

[35]  Anne K. Smith,et al.  The Origin of Stationary Planetary Waves in the Upper Mesosphere , 2003 .

[36]  C. Torrence,et al.  A Practical Guide to Wavelet Analysis. , 1998 .

[37]  J. Barnett,et al.  Zonal mean temperature, pressure, zonal wind and geopotential height as functions of latitude , 1990 .

[38]  M. Schoeberl.  Stratospheric Warmings: Observations and Theory , 1978 .

[39]  T. Matsuno,et al.  A Dynamical Model of the Stratospheric Sudden Warming , 1971 .

[40]  T. Matsuno.  Vertical Propagation of Stationary Planetary Waves in the Winter Northern Hemisphere , 1970 .

[41]  R. Dickinson.  Planetary Rossby Waves Propagating Vertically Through Weak Westerly Wind Wave Guides , 1968 .

[42]  J. G. Charney,et al.  Propagation of planetary‐scale disturbances from the lower into the upper atmosphere , 1961 .