Spatial and Temporal Evolution of Different-Scale Ionospheric Irregularities in Central and East Siberia During the 27–28 May 2017 Geomagnetic Storm

V. B. Ovodenko; M. V. Klimenko; I. E. Zakharenkova; A. V. Oinats; D. S. Kotova; A. V. Nikolaev; I. V. Tyutin; D. D. Rogov; K. G. Ratovsky; D. V. Chugunin; P. A. Budnikov; J. C. Coxon; B. J. Anderson; A. A. Chernyshov

doi:10.1029/2019SW002378

Spatial and Temporal Evolution of Different-Scale Ionospheric Irregularities in Central and East Siberia During the 27–28 May 2017 Geomagnetic Storm

V. B. Ovodenko, M. V. Klimenko^*, I. E. Zakharenkova, A. V. Oinats, D. S. Kotova, A. V. Nikolaev, I. V. Tyutin, D. D. Rogov, K. G. Ratovsky, D. V. Chugunin, P. A. Budnikov, J. C. Coxon, B. J. Anderson, A. A. Chernyshov

^*Corresponding author for this work

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

6 Citations (Scopus)

14 Downloads (Pure)

Abstract

We present a multi-instrumental study of ionospheric irregularities of different scales (from tens of centimeters to few kilometers) observed over the Central and East Siberia, Russia, during a moderate-to-strong geomagnetic storm on 27–28 May 2017. From high-frequency (HF) and ultrahigh-frequency (UHF) radar data, we observed an intense auroral backscatter developed right after the initial phase of the geomagnetic storm. Additionally, we examined variations of Global Positioning System (GPS)-based ROT (rate of TEC changes, where TEC is total electron content) for available GPS receivers in the region. Ionosondes, HF, and UHF radar data exhibited a presence of intense multi-scale ionospheric irregularities. We revealed a correlation between different-scale Auroral/Farley-Buneman ionospheric irregularities of the E layer during the geomagnetic storm. The combined analysis showed that an area of intense irregularities is well connected and located slightly equatorward to field-aligned currents (FACs) and auroral oval at different stages of the geomagnetic storm. An increase and equatorward displacement of Region 1 (R1)/Region 2 (R2) FACs leads to appearance and equatorward expansion of ionospheric irregularities. During downward (upward) R1 FAC and upward (downward) R2 FAC, the eastward and upward (westward and downward) E × B drift of ionospheric irregularities occurred. Simultaneous disappearance of UHF/HF auroral backscatter and GPS ROT decrease occurred during a prolonged near noon reversal of R1 and R2 FAC directions that accompanied by R1/R2 FAC degradation and disappearance of high-energy auroral precipitation.

Original language	English
Article number	e2019SW002378
Number of pages	19
Journal	Space Weather
Volume	18
Issue number	6
Early online date	13 Jun 2020
DOIs	https://doi.org/10.1029/2019SW002378
Publication status	Published - Jun 2020
Externally published	Yes

Keywords

E layer
field-aligned currents
field-aligned irregularities
HF absorption
radar auroral backscatter
rate of TEC change

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1029/2019SW002378Licence: CC BY

Space Weather - 2020 - Ovodenko - Spatial and Temporal Evolution of Different‐Scale Ionospheric Irregularities in CentralFinal published version, 6.61 MBLicence: CC BY

Cite this

Ovodenko, V. B., Klimenko, M. V., Zakharenkova, I. E., Oinats, A. V., Kotova, D. S., Nikolaev, A. V., Tyutin, I. V., Rogov, D. D., Ratovsky, K. G., Chugunin, D. V., Budnikov, P. A., Coxon, J. C., Anderson, B. J., & Chernyshov, A. A. (2020). Spatial and Temporal Evolution of Different-Scale Ionospheric Irregularities in Central and East Siberia During the 27–28 May 2017 Geomagnetic Storm. Space Weather, 18(6), Article e2019SW002378. https://doi.org/10.1029/2019SW002378

@article{aa710b14820a416aa0d3977c018db74c,

title = "Spatial and Temporal Evolution of Different-Scale Ionospheric Irregularities in Central and East Siberia During the 27–28 May 2017 Geomagnetic Storm",

abstract = "We present a multi-instrumental study of ionospheric irregularities of different scales (from tens of centimeters to few kilometers) observed over the Central and East Siberia, Russia, during a moderate-to-strong geomagnetic storm on 27–28 May 2017. From high-frequency (HF) and ultrahigh-frequency (UHF) radar data, we observed an intense auroral backscatter developed right after the initial phase of the geomagnetic storm. Additionally, we examined variations of Global Positioning System (GPS)-based ROT (rate of TEC changes, where TEC is total electron content) for available GPS receivers in the region. Ionosondes, HF, and UHF radar data exhibited a presence of intense multi-scale ionospheric irregularities. We revealed a correlation between different-scale Auroral/Farley-Buneman ionospheric irregularities of the E layer during the geomagnetic storm. The combined analysis showed that an area of intense irregularities is well connected and located slightly equatorward to field-aligned currents (FACs) and auroral oval at different stages of the geomagnetic storm. An increase and equatorward displacement of Region 1 (R1)/Region 2 (R2) FACs leads to appearance and equatorward expansion of ionospheric irregularities. During downward (upward) R1 FAC and upward (downward) R2 FAC, the eastward and upward (westward and downward) E × B drift of ionospheric irregularities occurred. Simultaneous disappearance of UHF/HF auroral backscatter and GPS ROT decrease occurred during a prolonged near noon reversal of R1 and R2 FAC directions that accompanied by R1/R2 FAC degradation and disappearance of high-energy auroral precipitation.",

keywords = "E layer, field-aligned currents, field-aligned irregularities, HF absorption, radar auroral backscatter, rate of TEC change",

author = "Ovodenko, {V. B.} and Klimenko, {M. V.} and Zakharenkova, {I. E.} and Oinats, {A. V.} and Kotova, {D. S.} and Nikolaev, {A. V.} and Tyutin, {I. V.} and Rogov, {D. D.} and Ratovsky, {K. G.} and Chugunin, {D. V.} and Budnikov, {P. A.} and Coxon, {J. C.} and Anderson, {B. J.} and Chernyshov, {A. A.}",

note = "Funding information: Research Council of Norway. Grant Number: 267408 RFBR. Grant Number: 18-05-80004 Russian Science Foundation. Grant Number: 17-77-20009",

year = "2020",

month = jun,

doi = "10.1029/2019SW002378",

language = "English",

volume = "18",

journal = "Space Weather",

issn = "1542-7390",

publisher = "American Geophysical Union",

number = "6",

}

Ovodenko, VB, Klimenko, MV, Zakharenkova, IE, Oinats, AV, Kotova, DS, Nikolaev, AV, Tyutin, IV, Rogov, DD, Ratovsky, KG, Chugunin, DV, Budnikov, PA, Coxon, JC, Anderson, BJ & Chernyshov, AA 2020, 'Spatial and Temporal Evolution of Different-Scale Ionospheric Irregularities in Central and East Siberia During the 27–28 May 2017 Geomagnetic Storm', Space Weather, vol. 18, no. 6, e2019SW002378. https://doi.org/10.1029/2019SW002378

TY - JOUR

T1 - Spatial and Temporal Evolution of Different-Scale Ionospheric Irregularities in Central and East Siberia During the 27–28 May 2017 Geomagnetic Storm

AU - Ovodenko, V. B.

AU - Klimenko, M. V.

AU - Zakharenkova, I. E.

AU - Oinats, A. V.

AU - Kotova, D. S.

AU - Nikolaev, A. V.

AU - Tyutin, I. V.

AU - Rogov, D. D.

AU - Ratovsky, K. G.

AU - Chugunin, D. V.

AU - Budnikov, P. A.

AU - Coxon, J. C.

AU - Anderson, B. J.

AU - Chernyshov, A. A.

N1 - Funding information: Research Council of Norway. Grant Number: 267408 RFBR. Grant Number: 18-05-80004 Russian Science Foundation. Grant Number: 17-77-20009

PY - 2020/6

Y1 - 2020/6

N2 - We present a multi-instrumental study of ionospheric irregularities of different scales (from tens of centimeters to few kilometers) observed over the Central and East Siberia, Russia, during a moderate-to-strong geomagnetic storm on 27–28 May 2017. From high-frequency (HF) and ultrahigh-frequency (UHF) radar data, we observed an intense auroral backscatter developed right after the initial phase of the geomagnetic storm. Additionally, we examined variations of Global Positioning System (GPS)-based ROT (rate of TEC changes, where TEC is total electron content) for available GPS receivers in the region. Ionosondes, HF, and UHF radar data exhibited a presence of intense multi-scale ionospheric irregularities. We revealed a correlation between different-scale Auroral/Farley-Buneman ionospheric irregularities of the E layer during the geomagnetic storm. The combined analysis showed that an area of intense irregularities is well connected and located slightly equatorward to field-aligned currents (FACs) and auroral oval at different stages of the geomagnetic storm. An increase and equatorward displacement of Region 1 (R1)/Region 2 (R2) FACs leads to appearance and equatorward expansion of ionospheric irregularities. During downward (upward) R1 FAC and upward (downward) R2 FAC, the eastward and upward (westward and downward) E × B drift of ionospheric irregularities occurred. Simultaneous disappearance of UHF/HF auroral backscatter and GPS ROT decrease occurred during a prolonged near noon reversal of R1 and R2 FAC directions that accompanied by R1/R2 FAC degradation and disappearance of high-energy auroral precipitation.

AB - We present a multi-instrumental study of ionospheric irregularities of different scales (from tens of centimeters to few kilometers) observed over the Central and East Siberia, Russia, during a moderate-to-strong geomagnetic storm on 27–28 May 2017. From high-frequency (HF) and ultrahigh-frequency (UHF) radar data, we observed an intense auroral backscatter developed right after the initial phase of the geomagnetic storm. Additionally, we examined variations of Global Positioning System (GPS)-based ROT (rate of TEC changes, where TEC is total electron content) for available GPS receivers in the region. Ionosondes, HF, and UHF radar data exhibited a presence of intense multi-scale ionospheric irregularities. We revealed a correlation between different-scale Auroral/Farley-Buneman ionospheric irregularities of the E layer during the geomagnetic storm. The combined analysis showed that an area of intense irregularities is well connected and located slightly equatorward to field-aligned currents (FACs) and auroral oval at different stages of the geomagnetic storm. An increase and equatorward displacement of Region 1 (R1)/Region 2 (R2) FACs leads to appearance and equatorward expansion of ionospheric irregularities. During downward (upward) R1 FAC and upward (downward) R2 FAC, the eastward and upward (westward and downward) E × B drift of ionospheric irregularities occurred. Simultaneous disappearance of UHF/HF auroral backscatter and GPS ROT decrease occurred during a prolonged near noon reversal of R1 and R2 FAC directions that accompanied by R1/R2 FAC degradation and disappearance of high-energy auroral precipitation.

KW - E layer

KW - field-aligned currents

KW - field-aligned irregularities

KW - HF absorption

KW - radar auroral backscatter

KW - rate of TEC change

UR - http://www.scopus.com/inward/record.url?scp=85087067276&partnerID=8YFLogxK

U2 - 10.1029/2019SW002378

DO - 10.1029/2019SW002378

M3 - Article

AN - SCOPUS:85087067276

SN - 1542-7390

VL - 18

JO - Space Weather

JF - Space Weather

IS - 6

M1 - e2019SW002378

ER -

Spatial and Temporal Evolution of Different-Scale Ionospheric Irregularities in Central and East Siberia During the 27–28 May 2017 Geomagnetic Storm

Abstract

Keywords

UN SDGs

Access to Document

Other files and links

Fingerprint

Cite this