Nighttime-like Quasi Periodic echoes induced by a partial solar eclipse

Smitha V. Thamyi; M. Yamamoto; H. Liu; S. Saito; Y. Otsuka; A. K. Paira

doi:doi:10.1029/2010GL042855

Nighttime-like Quasi Periodic echoes induced by a partial solar eclipse

Smitha V. Thamyi, M. Yamamoto, H. Liu, S. Saito, Y. Otsuka, A. K. Paira

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

The observations of mid-latitude quasi-periodic (QP) echoes during the partial solar eclipse on 22 July, 2009, using the MU radar at Shigaraki (34.85°N, 136.1°E) are presented. The rapid reduction in the E-region density, caused by the eclipse exposes the long-lived metallic ions within the Sporadic E-layers making it conducive for the gradient drift instability. These echoes resemble the normal post-sunset QP echoes observed over mid-latitudes. The present observations confirm that the mid latitude Es plasma process is mainly controlled by density gradients. This example also reveals a hitherto unobserved aspect of mid-latitude ionospheric responses to eclipses.

Original language	English
Title of host publication	Geophysical Research Lett.
Volume	37
DOIs	https://doi.org/doi:10.1029/2010GL042855
Publication status	Published - 2010
Externally published	Yes

All Science Journal Classification (ASJC) codes

Computer Networks and Communications
Electrical and Electronic Engineering

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@inproceedings{b0199bbea20a4dbc806a9df03db2474f,

title = "Nighttime-like Quasi Periodic echoes induced by a partial solar eclipse",

abstract = "The observations of mid-latitude quasi-periodic (QP) echoes during the partial solar eclipse on 22 July, 2009, using the MU radar at Shigaraki (34.85°N, 136.1°E) are presented. The rapid reduction in the E-region density, caused by the eclipse exposes the long-lived metallic ions within the Sporadic E-layers making it conducive for the gradient drift instability. These echoes resemble the normal post-sunset QP echoes observed over mid-latitudes. The present observations confirm that the mid latitude Es plasma process is mainly controlled by density gradients. This example also reveals a hitherto unobserved aspect of mid-latitude ionospheric responses to eclipses.",

author = "Thamyi, {Smitha V.} and M. Yamamoto and H. Liu and S. Saito and Y. Otsuka and Paira, {A. K.}",

year = "2010",

doi = "doi:10.1029/2010GL042855",

language = "English",

volume = "37",

booktitle = "Geophysical Research Lett.",

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TY - GEN

T1 - Nighttime-like Quasi Periodic echoes induced by a partial solar eclipse

AU - Thamyi, Smitha V.

AU - Yamamoto, M.

AU - Liu, H.

AU - Saito, S.

AU - Otsuka, Y.

AU - Paira, A. K.

PY - 2010

Y1 - 2010

N2 - The observations of mid-latitude quasi-periodic (QP) echoes during the partial solar eclipse on 22 July, 2009, using the MU radar at Shigaraki (34.85°N, 136.1°E) are presented. The rapid reduction in the E-region density, caused by the eclipse exposes the long-lived metallic ions within the Sporadic E-layers making it conducive for the gradient drift instability. These echoes resemble the normal post-sunset QP echoes observed over mid-latitudes. The present observations confirm that the mid latitude Es plasma process is mainly controlled by density gradients. This example also reveals a hitherto unobserved aspect of mid-latitude ionospheric responses to eclipses.

AB - The observations of mid-latitude quasi-periodic (QP) echoes during the partial solar eclipse on 22 July, 2009, using the MU radar at Shigaraki (34.85°N, 136.1°E) are presented. The rapid reduction in the E-region density, caused by the eclipse exposes the long-lived metallic ions within the Sporadic E-layers making it conducive for the gradient drift instability. These echoes resemble the normal post-sunset QP echoes observed over mid-latitudes. The present observations confirm that the mid latitude Es plasma process is mainly controlled by density gradients. This example also reveals a hitherto unobserved aspect of mid-latitude ionospheric responses to eclipses.

UR - http://www.scopus.com/inward/record.url?scp=81255203517&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=81255203517&partnerID=8YFLogxK

U2 - doi:10.1029/2010GL042855

DO - doi:10.1029/2010GL042855

M3 - Conference contribution

VL - 37

BT - Geophysical Research Lett.

ER -

Nighttime-like Quasi Periodic echoes induced by a partial solar eclipse

Abstract

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