Medium‐scale traveling ionospheric disturbances detected with dense and wide TEC maps over North America

T. Tsugawa; Y. Otsuka; A. J. Coster; A. Saito

doi:10.1029/2007gl031663

journal article Nov 01, 2007

Medium‐scale traveling ionospheric disturbances detected with dense and wide TEC maps over North America

T. Tsugawa Y. Otsuka A. J. Coster A. Saito

Geophysical Research Letters Vol. 34 No. 22 · American Geophysical Union (AGU)

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Abstract

Nighttime and daytime medium‐scale traveling ionospheric disturbances (MSTIDs) are detected with dense and wide detrended total electron content (TEC) maps over North America using multiple GPS receiver networks. The TEC maps cover a wide region of 60–130°W and 24–54°N (30–65°N in geomagnetic latitude), and have a spatial resolution of 1.05° × 1.05° in latitude and longitude (0.15° × 0.15° with 7 × 7 pixel smoothing) and a temporal resolution of 30 seconds. The TEC maps reveal, for the first time, that the nighttime MSTIDs propagate southwestward with 200–500 km wavelengths over North America and have wavefronts longer than ∼2,000 km. We also observe that daytime MSTIDs with 300–1,000 km wavelengths propagate southeastward until mid‐afternoon and southwestward in the late afternoon. In the mid‐to‐late afternoon, these MSTIDs propagating in the different directions are superimposed. The TEC maps can be a new powerful tool to investigate the MSTIDs.

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References

24

[1]

10.1029/1998rs900004

[2]

10.1016/s1364-6826(00)00011-0

[3]

10.1029/1999ja000305

[4]

10.1029/2005ja011474

[5]

10.1139/p60-150

[6]

Hocke K. "A review of atmospheric gravity waves and traveling ionospheric disturbances: 1982–1995" Ann. Geophys. (1996)

[7]

10.1029/2000gl012777

[8]

10.1186/bf03352681

[9]

Mannucci A. J. (1999)

[10]

10.1029/2004gl020262

[11]

10.1029/ja078i001p00218

[12]

10.1029/98gl52361

[13]

10.1029/2000gl011884

[14]

10.1186/bf03352419

[15]

10.1186/bf03352421

[16]

10.1029/2002ja009491

[17]

10.1029/2002ja009639

[18]

10.1029/2004ja010845

[19]

10.2514/5.9781600866388.0029.0055

[20]

10.1029/2002ja009433

[21]

10.1029/2003ja010302

[22]

10.1007/s10291‐006‐0045‐5

[23]

10.1029/2005ja011300

[24]

10.1016/0021-9169(86)90099-1

Metrics

217

Citations

24

References

Details

Published: Nov 01, 2007
Vol/Issue: 34(22)
License: View

Authors

T

T. Tsugawa

Solar‐Terrestrial Environment Laboratory Nagoya University Nagoya Japan

Y

Y. Otsuka

Solar‐Terrestrial Environment Laboratory Nagoya University Nagoya Japan

A

A. J. Coster

Haystack Observatory Massachusetts Institute of Technology Westford Massachusetts USA

A

A. Saito

Department of Geophysics, Graduate School of Science Kyoto University Kyoto Japan

Cite This Article

T. Tsugawa, Y. Otsuka, A. J. Coster, et al. (2007). Medium‐scale traveling ionospheric disturbances detected with dense and wide TEC maps over North America. Geophysical Research Letters, 34(22). https://doi.org/10.1029/2007gl031663

Medium‐scale traveling ionospheric disturbances detected with dense and wide TEC maps over North America

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