Mean winds and tidal variability from troposphere to the thermosphere retrieved from combined ground based and space borne measurements

被引：0
|
作者：
Teja, A. Kalyan [1 ,2 ]
Ratnam, M. Venkat [1 ]
Rao, S. Vijaya Bhaskara [2 ]
机构：
[1] Natl Atmospher Res Lab NARL, Gadanki 517112, India
[2] Sri Venkateswara Univ, Tirupati 517502, India
来源：
JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS | 2024年 / 265卷
关键词：
MLT winds; Tides; ICON-MIGHTI; Meteor radar; LONG-TERM VARIABILITY; SEMIANNUAL OSCILLATION; MIDDLE ATMOSPHERE; TIDES; INTERFEROMETER; MESOSPHERE; RADAR; SOLAR; LUNAR;
D O I：
10.1016/j.jastp.2024.106389
中图分类号：
P3 [地球物理学]; P59 [地球化学];
学科分类号：
0708 ; 070902 ;
摘要：
An attempt has been made to obtain mean winds covering the complete middle and upper atmosphere over a tropical region, Tirupati(13.5 degrees N, 79.2 degrees E) using a combined dataset of ERA5 reanalysis, SVU-meteor radar, and ICON/MIGHTI after comprehensive validation. Regardless of the season, thermospheric(200-300 km) and mesospheric(80-100 km) winds exhibit significant diurnal variability. Mean winds exhibit two distinct semiannual oscillations at the stratopause and in the mesosphere. Tidal amplitudes are larger in meridional winds compared to that of zonal winds in the MLT region. This work has the potential in the field of numerical modeling of atmospheric circulation, especially to verify numerical simulations.
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页数：10
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