scholarly journals New method of estimating temperatures near the mesopause region using meteor radar observations

2016 ◽  
Vol 43 (20) ◽  
pp. 10,580-10,585 ◽  
Author(s):  
Changsup Lee ◽  
Jeong-Han Kim ◽  
Geonhwa Jee ◽  
Wonseok Lee ◽  
In-Sun Song ◽  
...  
Keyword(s):  
New Method ◽  
Meteor Radar ◽  
Mesopause Region ◽  
Radar Observations

scholarly journals Meteor radar observations of mesopause region long-period temperature oscillations

2016 ◽  
Vol 14 ◽  
pp. 169-174
Author(s):  
Ch. Jacobi ◽  
N. Samtleben ◽  
G. Stober
Keyword(s):  
Time Scales ◽  
Lower Thermosphere ◽  
Planetary Waves ◽  
Meteor Radar ◽  
Mesopause Region ◽  
Radar Observations ◽  
Long Period ◽  
Temperature Oscillations ◽  
Wind Measurements

Abstract. Meteor radar observations of mesosphere/lower thermosphere (MLT) daily temperatures have been performed at Collm, Germany since August 2004. The data have been analyzed with respect to long-period oscillations at time scales of 2–30 days. The results reveal that oscillations with periods of up to 6 days are more frequently observed during summer, while those with longer periods have larger amplitudes during winter. The oscillations may be considered as the signature of planetary waves. The results are compared with analyses from radar wind measurements. Moreover, the temperature oscillations show considerable year-to-year variability. In particular, amplitudes of the quasi 5-day oscillation have increased during the last decade, and the quasi 10-day oscillations are larger if the equatorial stratospheric winds are eastward.

scholarly journals Interhemispheric differences of mesosphere/lower thermosphere winds and tides investigated from three whole atmosphere models and meteor radar observations

2021 ◽  
Author(s):  
Gunter Stober ◽  
Ales Kuchar ◽  
Dimitry Pokhotelov ◽  
Huixin Liu ◽  
Han-Li Liu ◽  
...  
Keyword(s):  
General Circulation ◽  
Climate Models ◽  
Climate Model ◽  
Lower Thermosphere ◽  
Winter Season ◽  
General Circulation Models ◽  
Meteor Radar ◽  
Radar Observations ◽  
Seasonal Characteristics

Abstract. Long-term and continuous observations of mesospheric/lower thermospheric winds are rare, but they are important to investigate climatological changes at these altitudes on time scales of several years, covering a solar cycle and longer. Such long time series are a natural heritage of the mesosphere/lower thermosphere climate, and they are valuable to compare climate models or long term runs of general circulation models (GCMs). Here we present a climatological comparison of wind observations from six meteor radars at two conjugate latitudes to validate the corresponding mean winds and atmospheric diurnal and semidiurnal tides from three GCMs, namely Ground-to-Topside Model of Atmosphere and Ionosphere for Aeronomy (GAIA), Whole Atmosphere Community Climate Model Extension (Specified Dynamics) (WACCM-X(SD)) and Upper Atmosphere ICOsahedral Non-hydrostatic (UA-ICON) model. Our results indicate that there are interhemispheric differences in the seasonal characteristics of the diurnal and semidiurnal tide. There also are some differences in the mean wind climatologies of the models and the observations. Our results indicate that GAIA shows a reasonable agreement with the meteor radar observations during the winter season, whereas WACCM-X(SD) shows a better agreement with the radars for the hemispheric zonal summer wind reversal, which is more consistent with the meteor radar observations. The free running UA-ICON tends to show similar winds and tides compared to WACCM-X(SD).

Advanced meteor radar observations of mesospheric dynamics during 2017 minor SSW over the tropical region

2019 ◽  
Vol 64 (10) ◽  
pp. 1940-1947 ◽  
Author(s):  
S. Eswaraiah ◽  
M. Venkat Ratnam ◽  
Yong Ha Kim ◽  
Kondapalli Niranjan Kumar ◽  
G. Venkata Chalapathi ◽  
...  
Keyword(s):  
Tropical Region ◽  
Meteor Radar ◽  
Radar Observations

Mesopause-region tidal variability observed by meteor radar

1997 ◽  
Vol 20 (6) ◽  
pp. 1237-1240 ◽  
Author(s):  
A.G. Beard ◽  
N.J. Mitchell ◽  
P.J.S. Williams ◽  
W. Jones ◽  
H.G. Muller
Keyword(s):  
Meteor Radar ◽  
Mesopause Region ◽  
Tidal Variability

Supplementary material to "Retrieving horizontally resolved wind fields using multi-static meteor radar observations"

2018 ◽  
Author(s):  
Gunter Stober ◽  
Jorge L. Chau ◽  
Juha Vierinen ◽  
Christoph Jacobi ◽  
Sven Wilhelm
Keyword(s):  
Meteor Radar ◽  
Wind Fields ◽  
Radar Observations ◽  
Supplementary Material
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