Inferring neutral winds in the ionospheric transition region from atmospheric-gravity-wave traveling-ionospheric-disturbance (AGW-TID) observations with the EISCAT VHF radar and the Nordic Meteor Radar Cluster

被引：7

作者：

Guenzkofer, Florian ^{[1
]}

Pokhotelov, Dimitry ^{[2
]}

Stober, Gunter ^{[3
,4
]}

Mann, Ingrid ^{[5
]}

Vadas, Sharon L. ^{[6
]}

Becker, Erich ^{[6
]}

Tjulin, Anders ^{[7
]}

Kozlovsky, Alexander ^{[8
]}

Tsutsumi, Masaki ^{[9
,10
]}

Gulbrandsen, Njal ^{[11
]}

Nozawa, Satonori ^{[12
]}

Lester, Mark ^{[13
]}

Belova, Evgenia ^{[14
]}

Kero, Johan ^{[14
]}

Mitchell, Nicholas J. ^{[15
,16
]}

Borries, Claudia ^{[1
]}

机构：

[1] Inst Solar Terr Phys, German Aerosp Ctr DLR, Neustrelitz, Germany

[2] Univ Greifswald, Inst Phys, Greifswald, Germany

[3] Univ Bern, Inst Appl Phys, CH-3012 Bern, Switzerland

[4] Univ Bern, Oeschger Ctr Climate Change Res, Microwave Phys, Bern, Switzerland

[5] UIT Arctic Univ Norway, Inst Phys & Technol, Tromso, Norway

[6] North West Res Associates NWRA, Boulder, CO USA

[7] EISCAT Sci Assoc, Kiruna, Sweden

[8] Univ Oulu, Sodankyla Geophys Observ, Oulu, Finland

[9] Natl Inst Polar Res, Tachikawa, Japan

[10] Grad Univ Adv Studies SOKENDAI, Tokyo, Japan

[11] UiT Arctic Univ Norway, Tromso Geophys Observ, Tromso, Norway

[12] Nagoya Univ, Inst Space Earth Environm Res, Nagoya, Japan

[13] Univ Leicester, Dept Phys & Astron, Leicester, England

[14] Swedish Inst Space Phys IRF, Kiruna, Sweden

[15] British Antarctic Survey, Cambridge, England

[16] Univ Bath, Dept Elect & Elect Engn, Bath BA2 7AY, Somerset, England

来源：

ANNALES GEOPHYSICAE | 2023年 / 41卷 / 02期

基金：

日本学术振兴会;

关键词：

MESOSPHERIC WINDS; MOMENTUM FLUX; PARAMETERS; SCATTER; TOMOGRAPHY; MESOPAUSE; NETWORK; MIDDLE; EVENT;

D O I：

10.5194/angeo-41-409-2023

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Atmospheric gravity waves and traveling ionospheric disturbances can be observed in the neutral atmosphere and the ionosphere at a wide range of spatial and temporal scales. Especially at medium scales, these oscillations are often not resolved in general circulation models and are parameterized. We show that ionospheric disturbances forced by upward-propagating atmospheric gravity waves can be simultaneously observed with the EISCAT very high frequency incoherent scatter radar and the Nordic Meteor Radar Cluster. From combined multi-static measurements, both vertical and horizontal wave parameters can be determined by applying a specially developed Fourier filter analysis method. This method is demonstrated using the example of a strongly pronounced wave mode that occurred during the EISCAT experiment on 7 July 2020. Leveraging the developed technique, we show that the wave characteristics of traveling ionospheric disturbances are notably impacted by the fall transition of the mesosphere and lower thermosphere. We also demonstrate the application of using the determined wave parameters to infer the thermospheric neutral wind velocities. Applying the dissipative anelastic gravity wave dispersion relation, we obtain vertical wind profiles in the lower thermosphere.

引用

页码：409 / 428

页数：20