High- and Middle-Latitude Neutral Mesospheric Density Response to Geomagnetic Storms

Wen Yi; Iain M. Reid; Xianghui Xue; Damian J. Murphy; Chris M. Hall; Masaki Tsutsumi; Baiqi Ning; Guozhu Li; Joel P. Younger; Tingdi Chen; Xiankang Dou

doi:10.1002/2017GL076282

High- and Middle-Latitude Neutral Mesospheric Density Response to Geomagnetic Storms

Wen Yi, Iain M. Reid, Xianghui Xue, Damian J. Murphy, Chris M. Hall, Masaki Tsutsumi, Baiqi Ning, Guozhu Li, Joel P. Younger, Tingdi Chen, Xiankang Dou

Research output: Contribution to journal › Article › peer-review

29 Citations (Scopus)

Abstract

We report the first observations of a high- and middle-latitude neutral mesospheric density response to geomagnetic storms. Interhemisphere mesospheric densities are estimated using data from meteor radars at Davis Station (68.6°S, 77.9°E), Svalbard (78.3°N, 16°E) and Tromsø (69.6°N, 19.2°E), which are located under the auroral zone; the Mohe (53.5°N, 122.3°E), and Beijing (40.3°N, 116.2°E) meteor radars, located in northern midlatitudes, and the Microwave Limb Sounder (MLS) on the Aura satellite. Both case studies and a superposed epoch analysis indicate that geomagnetic storms can significantly influence mesospheric density, causing a greater than ~10% decrease in the auroral zones and a ~5% decrease at higher midlatitudes. With such large changes, it is reasonable to suspect that geomagnetic storms influence the dynamics of the high and middle latitudes mesosphere.

Original language	English
Pages (from-to)	436-444
Number of pages	9
Journal	Geophysical Research Letters
Volume	45
Issue number	1
DOIs	https://doi.org/10.1002/2017GL076282
Publication status	Published - 16 Jan 2018
Externally published	Yes

Keywords

auroral zone
energetic proton precipitation
geomagnetic storm
mesospheric density
meteor radar
solar proton events

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title = "High- and Middle-Latitude Neutral Mesospheric Density Response to Geomagnetic Storms",

abstract = "We report the first observations of a high- and middle-latitude neutral mesospheric density response to geomagnetic storms. Interhemisphere mesospheric densities are estimated using data from meteor radars at Davis Station (68.6°S, 77.9°E), Svalbard (78.3°N, 16°E) and Troms{\o} (69.6°N, 19.2°E), which are located under the auroral zone; the Mohe (53.5°N, 122.3°E), and Beijing (40.3°N, 116.2°E) meteor radars, located in northern midlatitudes, and the Microwave Limb Sounder (MLS) on the Aura satellite. Both case studies and a superposed epoch analysis indicate that geomagnetic storms can significantly influence mesospheric density, causing a greater than ~10% decrease in the auroral zones and a ~5% decrease at higher midlatitudes. With such large changes, it is reasonable to suspect that geomagnetic storms influence the dynamics of the high and middle latitudes mesosphere.",

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author = "Wen Yi and Reid, {Iain M.} and Xianghui Xue and Murphy, {Damian J.} and Hall, {Chris M.} and Masaki Tsutsumi and Baiqi Ning and Guozhu Li and Younger, {Joel P.} and Tingdi Chen and Xiankang Dou",

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doi = "10.1002/2017GL076282",

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AU - Yi, Wen

AU - Reid, Iain M.

AU - Xue, Xianghui

AU - Murphy, Damian J.

AU - Hall, Chris M.

AU - Tsutsumi, Masaki

AU - Ning, Baiqi

AU - Li, Guozhu

AU - Younger, Joel P.

AU - Chen, Tingdi

AU - Dou, Xiankang

PY - 2018/1/16

Y1 - 2018/1/16

N2 - We report the first observations of a high- and middle-latitude neutral mesospheric density response to geomagnetic storms. Interhemisphere mesospheric densities are estimated using data from meteor radars at Davis Station (68.6°S, 77.9°E), Svalbard (78.3°N, 16°E) and Tromsø (69.6°N, 19.2°E), which are located under the auroral zone; the Mohe (53.5°N, 122.3°E), and Beijing (40.3°N, 116.2°E) meteor radars, located in northern midlatitudes, and the Microwave Limb Sounder (MLS) on the Aura satellite. Both case studies and a superposed epoch analysis indicate that geomagnetic storms can significantly influence mesospheric density, causing a greater than ~10% decrease in the auroral zones and a ~5% decrease at higher midlatitudes. With such large changes, it is reasonable to suspect that geomagnetic storms influence the dynamics of the high and middle latitudes mesosphere.

AB - We report the first observations of a high- and middle-latitude neutral mesospheric density response to geomagnetic storms. Interhemisphere mesospheric densities are estimated using data from meteor radars at Davis Station (68.6°S, 77.9°E), Svalbard (78.3°N, 16°E) and Tromsø (69.6°N, 19.2°E), which are located under the auroral zone; the Mohe (53.5°N, 122.3°E), and Beijing (40.3°N, 116.2°E) meteor radars, located in northern midlatitudes, and the Microwave Limb Sounder (MLS) on the Aura satellite. Both case studies and a superposed epoch analysis indicate that geomagnetic storms can significantly influence mesospheric density, causing a greater than ~10% decrease in the auroral zones and a ~5% decrease at higher midlatitudes. With such large changes, it is reasonable to suspect that geomagnetic storms influence the dynamics of the high and middle latitudes mesosphere.

KW - auroral zone

KW - energetic proton precipitation

KW - geomagnetic storm

KW - mesospheric density

KW - meteor radar

KW - solar proton events

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DO - 10.1002/2017GL076282

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VL - 45

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EP - 444

JO - Geophysical Research Letters

JF - Geophysical Research Letters

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ER -

High- and Middle-Latitude Neutral Mesospheric Density Response to Geomagnetic Storms

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Keywords

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