Effects of nonmigrating diurnal tides on the Na layer in the mesosphere and lower thermosphere

被引：0

作者：

Wu, Jianfei ^{[1
,3
]}

Feng, Wuhu ^{[4
,5
]}

Xue, Xianghui ^{[1
,2
,3
,6
]}

Marsh, Daniel Robert ^{[4
]}

Plane, John Maurice Campbell ^{[4
]}

机构：

[1] Univ Sci & Technol China, Sch Earth & Space Sci, CAS Key Lab Geospace Environm, Hefei 230026, Peoples R China

[2] Univ Sci & Technol China, Sch Earth & Space Sci, Mengcheng Natl Geophys Observ, Hefei 230026, Peoples R China

[3] Chinese Acad Sci, Ctr Excellence Comparat Planetol, Hefei 230026, Peoples R China

[4] Univ Leeds, Sch Chem, Leeds LS2 9JT, England

[5] Univ Leeds, Natl Ctr Atmospher Sci, Leeds LS2 9JT, England

[6] Collaborat Innovat Ctr Astronaut Sci & Technol, Hefei 230026, Peoples R China

来源：

ATMOSPHERIC CHEMISTRY AND PHYSICS | 2024年 / 24卷 / 21期

关键词：

LIDAR OBSERVATION; CYCLE RESPONSE; 40-DEGREES-N;

D O I：

10.5194/acp-24-12133-2024

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The influence of nonmigrating diurnal tides on Na layer variability in the mesosphere and lower thermosphere regions is investigated for the first time using data from the Optical Spectrograph and InfraRed Imaging System (OSIRIS) on the Odin satellite and Specified Dynamics Whole Atmosphere Community Climate Model (SD-WACCM) with metal chemistry. The Na density from OSIRIS exhibits a clear longitudinal variation indicative of the presence of tidal components. Similar variability is seen in the SD-WACCM result. Analysis shows a significant relationship between the nonmigrating diurnal tides in Na density and the corresponding temperature tidal signal. Below 90 km, the three nonmigrating diurnal tidal components in Na density show a significant positive correlation with the temperature tides. Conversely, the phase mainly indicates a negative correlation above 95 km. Around the metal layer peak, the response of the Na density to a 1 K change in tidal temperature is estimated to be 120 cm-3.

引用

页码：12133 / 12141

页数：9