Simulated midlatitude summer nighttime anomaly in realistic geomagnetic fields

Zhipeng Ren; Weixing Wan; Libo Liu; Huijun Le; Maosheng He

doi:10.1029/2011ja017010

journal article Mar 01, 2012

Simulated midlatitude summer nighttime anomaly in realistic geomagnetic fields

Zhipeng Ren

Weixing Wan Libo Liu

Huijun Le Maosheng He

Journal of Geophysical Research: Oceans Vol. 117 No. A3 · American Geophysical Union (AGU)

View at Publisher Save 10.1029/2011ja017010

Abstract

In the present work, using the three‐dimensional theoretical ionospheric model of the Earth in Institute of Geology and Geophysics, Chinese Academy of Sciences (TIME3D‐IGGCAS), we simulate the temporal‐spatial distribution of the midlatitude summer nighttime anomaly (MSNA) and the influences of thermospheric meridional and zonal winds on the formation of MSNA. MSNA mainly appears in three distinct regions, the East Asian region, the northern Atlantic‐Europe region and the South Pacific region. MSNA in the South Pacific region is obviously stronger than that in the other two regions. In these three regions, MSNA not only occurs in local summer, but also often occurs in Equinox. Through lifting up or lowering the F region ionization, thermospheric winds mainly drive the formation of MSNA. In the East Asian region and the northern Atlantic‐Europe region, MSNA are mainly driven by the thermospheric meridional wind, and the influence of the thermospheric zonal wind can be neglected. However, although MSNA in the South Pacific region (or Weddell Sea Anomaly) are mainly driven by the thermospheric meridional wind, the thermospheric zonal wind also plays an important role in the formation of MSNA.

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Metrics

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Citations

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References

Details

Published: Mar 01, 2012
Vol/Issue: 117(A3)
License: View

Authors

Beijing National Observatory of Space Environment Institute of Geology and Geophysics, Chinese Academy of Sciences Beijing China

L

Libo Liu

Department of Business Technology and Entrepreneurship Swinburne University of Technology Melbourne Victoria Australia

Cite This Article

Zhipeng Ren, Weixing Wan, Libo Liu, et al. (2012). Simulated midlatitude summer nighttime anomaly in realistic geomagnetic fields. Journal of Geophysical Research: Oceans, 117(A3). https://doi.org/10.1029/2011ja017010

Simulated midlatitude summer nighttime anomaly in realistic geomagnetic fields

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