A three dimensional study of E region irregularity patches in the equatorial anomaly region using the Chung‐Li VHF radar

C. J. Pan; C. H. Liu; J. Röttger; S. Y. Su

doi:10.1029/94GL01195

A three dimensional study of E region irregularity patches in the equatorial anomaly region using the Chung‐Li VHF radar

C. J. Pan, C. H. Liu, J. Röttger, S. Y. Su

Department of Space Science and Engineering

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

29 Scopus citations

Abstract

Combining the Spatial and Frequency Domain Interferometry techniques, the three dimensional behavior of the E region Field Aligned Irregularity (FAI) patches are studied via Chung‐Li VHF radar. The echo patches are found to be localized within the radar beam. They are of pancake shape with dimensions in the plane containing the field line but transverse to the radar beam at least one order of magnitude greater than the dimension along the radar beam. A zonal westward drift velocity of the patches is found to be about 90 m/s at 107 km altitude in the night time. Mean Doppler (radial) velocity is about 50 m/s with a broad spectral width of 25 to 35 m/s.

Original language	English
Pages (from-to)	1763-1766
Number of pages	4
Journal	Geophysical Research Letters
Volume	21
Issue number	17
DOIs	https://doi.org/10.1029/94GL01195
State	Published - 15 Aug 1994

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title = "A three dimensional study of E region irregularity patches in the equatorial anomaly region using the Chung‐Li VHF radar",

abstract = "Combining the Spatial and Frequency Domain Interferometry techniques, the three dimensional behavior of the E region Field Aligned Irregularity (FAI) patches are studied via Chung‐Li VHF radar. The echo patches are found to be localized within the radar beam. They are of pancake shape with dimensions in the plane containing the field line but transverse to the radar beam at least one order of magnitude greater than the dimension along the radar beam. A zonal westward drift velocity of the patches is found to be about 90 m/s at 107 km altitude in the night time. Mean Doppler (radial) velocity is about 50 m/s with a broad spectral width of 25 to 35 m/s.",

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AU - Pan, C. J.

AU - Liu, C. H.

AU - Röttger, J.

AU - Su, S. Y.

PY - 1994/8/15

Y1 - 1994/8/15

N2 - Combining the Spatial and Frequency Domain Interferometry techniques, the three dimensional behavior of the E region Field Aligned Irregularity (FAI) patches are studied via Chung‐Li VHF radar. The echo patches are found to be localized within the radar beam. They are of pancake shape with dimensions in the plane containing the field line but transverse to the radar beam at least one order of magnitude greater than the dimension along the radar beam. A zonal westward drift velocity of the patches is found to be about 90 m/s at 107 km altitude in the night time. Mean Doppler (radial) velocity is about 50 m/s with a broad spectral width of 25 to 35 m/s.

AB - Combining the Spatial and Frequency Domain Interferometry techniques, the three dimensional behavior of the E region Field Aligned Irregularity (FAI) patches are studied via Chung‐Li VHF radar. The echo patches are found to be localized within the radar beam. They are of pancake shape with dimensions in the plane containing the field line but transverse to the radar beam at least one order of magnitude greater than the dimension along the radar beam. A zonal westward drift velocity of the patches is found to be about 90 m/s at 107 km altitude in the night time. Mean Doppler (radial) velocity is about 50 m/s with a broad spectral width of 25 to 35 m/s.

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ER -

A three dimensional study of E region irregularity patches in the equatorial anomaly region using the Chung‐Li VHF radar

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