Presentation is loading. Please wait.

Presentation is loading. Please wait.

Joint observation of large-scale travelling ionospheric disturbances using SuperDARN Hokkaido radar and Eastern Siberia chirp sounders network Alexey Oinats.

Published byJody Sanders Modified over 8 years ago

Similar presentations

Presentation on theme: "Joint observation of large-scale travelling ionospheric disturbances using SuperDARN Hokkaido radar and Eastern Siberia chirp sounders network Alexey Oinats."— Presentation transcript:

1 Joint observation of large-scale travelling ionospheric disturbances using SuperDARN Hokkaido radar and Eastern Siberia chirp sounders network Alexey Oinats 1, Konstantin Kutelev 1, Vladimir Kurkin 1, Nozomu Nishitani 2 1 Institute of Solar-Terrestrial Physics, Russia, 664033, Irkutsk, P.O. Box 291, E-mail: oinats@iszf.irk.ru 2 Solar-Terrestrial Environment Laboratory, Nagoya University, Nagoya, Japan, E-mail: nisitani@stelab.nagoya-u.ac.jp European Geosciences Union General Assembly 2011 Vienna | Austria | 03 – 08 April 2011

2 EGU GA, Vienna, April 2011 Scheme of the instruments location

3 Chirp oblique incidence sounder dataDPS-4 vertical sounder data MOF Maximal Observable Frequency Time resolution - 5 minTime resolution – 15 min foF2 Critical Frequency of F2 layer hmF2 Peak Height of F2 layer EGU GA, Vienna, April 2011 [B.W. Reinisch, D.M. Haines, K. Bibl et al. 1997] [V.A. Ivanov, V.I. Kurkin, V.E. Nosov et al., 2003]

4 EGU GA, Vienna, April 2011 Scheme of the instruments location

5 SuperDARN HF radar data Time resolution for the beam ~ 1 min EGU GA, Vienna, April 2011

6 Chirp oblique incidence soundingand vertical sounding Ground backscatter sounding at fixed frequency (SuperDARN) RTI plot for beam 0 (Hok)MOF for Magadan - Irkutsk EGU GA, Vienna, April 2011 MOF, MHz UT P, km UT Simulation for undisturbed conditions (IRI 2007)

7 Chirp oblique incidence soundingand vertical sounding Ground backscatter sounding at fixed frequency (SuperDARN) RTI plot for beam 0 (Hok)MOF for Magadan - Irkutsk Simulation for southward LSTID (160 o, 1500km, 2.5 h, 10%) EGU GA, Vienna, April 2011 MOF, MHz UT P, km UT

8 P min ground backscatter leading edge (minimal group path) SuperDARN HF radar data EGU GA, Vienna, April 2011 [T.J.T. Karhunen, T.R. Robinson, N.F. Arnold, M. Lester, 2006]

9 Observational data during March 17, 2007 EGU GA, Vienna, April 2011

10 Correlation between variations of obtained parameters during March 17, 2007 EGU GA, Vienna, April 2011

11 The absolute deviations of the minimal group path for all 16 beams of the SuperDARN Hokkaido radar on March 17, 2007 EGU GA, Vienna, April 2011 Phase difference between two detectors: Time moment for j-th detector: Discrepancy between theoretical and measured time moments Let assume Determination of the TID parameters using the SuperDARN ground scatter

12 TID (0.7UT ) EGU GA, Vienna, April 2011 InstrumentRCSNSuperDARN Time, UT23UT2UT23UT (N1)0.7UT (N2) Azimuth, deg. 240220160153 Velocity, m/s 190152190189

13 Possible source of the TID EGU GA, Vienna, April 2011 Kp=4 16.03.200717.03.200718.03.2007

14 Conclusion  Large-scale travelling ionospheric disturbance was observed at the same time by SuperDARN Hokkiado radar and by East-Siberian chirp sounders network on March 17, 2007.  TID mostly propagates in southward direction that is typical for midlatitudes (T~2.5-3 h, ~1700-2000 km,  ~190 m/s). The comparison between the two instruments shows a good agreement in estimated TID`s parameters. The possible source of the TID is an area at the boundary of the auroral oval.  The joint use of the SuperDARN Hokkaido HF radar and Russian chirp sounders network data allows to take more information about large-scale TID`s propagating in the Asia north-east. Future expansion of chirp sounders network and also installation of Russian segment SuperDARN radars will allow more possibilities in diagnostics of TIDs and identification their sources. EGU GA, Vienna, April 2011

15 Nearest future: Chirp sounders network expansion EGU GA, Vienna, April 2011

16 Nearest future: Russian segment of SuperDARN EGU GA, Vienna, April 2011

17 Thank you for attention! Institute of Solar-Terrestrial Physics, Russia Solar-Terrestrial Environment Laboratory, Nagoya University, Nagoya, Japan

Download ppt "Joint observation of large-scale travelling ionospheric disturbances using SuperDARN Hokkaido radar and Eastern Siberia chirp sounders network Alexey Oinats."

Similar presentations

THE AURORAL EMISSIONS AND THE ELECTRON PRECIPITATION UNDER DIFFERENT GEOMAGNETIC CONDITIONS DURING RECURRENT SOLAR WIND STREAM Guineva V. 1, Despirak I.

THE AURORAL EMISSIONS AND THE ELECTRON PRECIPITATION UNDER DIFFERENT GEOMAGNETIC CONDITIONS DURING RECURRENT SOLAR WIND STREAM Guineva V. 1, Despirak I.
HF management communication system and link optimization Bruno Zolesi. Istituto Nazionale di Geofisica e Vulcanologia.

HF management communication system and link optimization Bruno Zolesi. Istituto Nazionale di Geofisica e Vulcanologia.
B. Nava, S.M. Radicella, R. Leitinger and P.Coïsson The Abdus Salam ICTP, Trieste, Italy IGAM, Graz, Austria XXVIII General Assembly of International Union.

B. Nava, S.M. Radicella, R. Leitinger and P.Coïsson The Abdus Salam ICTP, Trieste, Italy IGAM, Graz, Austria XXVIII General Assembly of International Union.
Using a DPS as a Coherent Scatter HF Radar Lindsay Magnus Lee-Anne McKinnell Hermanus Magnetic Observatory Hermanus, South Africa.

Using a DPS as a Coherent Scatter HF Radar Lindsay Magnus Lee-Anne McKinnell Hermanus Magnetic Observatory Hermanus, South Africa.
Extended observations of decameter scatter associated with the mid-latitude ionospheric trough E. R. Talaat 1, E. S. Miller 1, R. J. Barnes 1, J. M. Ruohoniemi.

Extended observations of decameter scatter associated with the mid-latitude ionospheric trough E. R. Talaat 1, E. S. Miller 1, R. J. Barnes 1, J. M. Ruohoniemi.
Ionospheric responses to the particular solar events Zbyšek Mošna 1,2, Petra Šauli 1, K. Georgieva 3 1- Institute of Atmospheric Physics ASCR, Prague,

Ionospheric responses to the particular solar events Zbyšek Mošna 1,2, Petra Šauli 1, K. Georgieva 3 1- Institute of Atmospheric Physics ASCR, Prague,
Which describes a variation of wave frequency ω(t) in a geometric-optic approximation [4]. Here n(ω) is the refractive index of the medium, is the vector.

Which describes a variation of wave frequency ω(t) in a geometric-optic approximation [4]. Here n(ω) is the refractive index of the medium, is the vector.
A fast and slow chromospheric response of H-alpha and H-beta lines to effects of accelerated particles in the 26th April 2003 solar flare Kashapova L.K.

A fast and slow chromospheric response of H-alpha and H-beta lines to effects of accelerated particles in the 26th April 2003 solar flare Kashapova L.K.
AJ Ribeiro Irregs.Short Meeting Title, Date A survey of plasma irregularities seen by the mid-latitude Blackstone SuperDARN radar.

AJ Ribeiro Irregs.Short Meeting Title, Date A survey of plasma irregularities seen by the mid-latitude Blackstone SuperDARN radar.
Adrian Grocott *, Steve Milan, Mark Lester, Tim Yeoman University of Leicester, U.K. *currently visiting NIPR, Japan Mervyn Freeman British Antarctic Survey,

Adrian Grocott *, Steve Milan, Mark Lester, Tim Yeoman University of Leicester, U.K. *currently visiting NIPR, Japan Mervyn Freeman British Antarctic Survey,
Phase Coherence on Open Field Lines Associated with FLRs Abiyu Nedie, Frances Fenrich & Robert Rankin University of Alberta Edmonton, Alberta, Canada 2011.

Phase Coherence on Open Field Lines Associated with FLRs Abiyu Nedie, Frances Fenrich & Robert Rankin University of Alberta Edmonton, Alberta, Canada 2011.
The Temporal Morphology of Infrasound Propagation Douglas P. Drob 1, Milton Garces 2, Michael Hedlin 3, and Nicolas Brachet 4 1)Space Science Division,

The Temporal Morphology of Infrasound Propagation Douglas P. Drob 1, Milton Garces 2, Michael Hedlin 3, and Nicolas Brachet 4 1)Space Science Division,
1 Sferics and Tweeks Prepared by Ryan Said and Morris Cohen Stanford University, Stanford, CA IHY Workshop on Advancing VLF through the Global AWESOME.

1 Sferics and Tweeks Prepared by Ryan Said and Morris Cohen Stanford University, Stanford, CA IHY Workshop on Advancing VLF through the Global AWESOME.
SuperDARN real time products for Space Weather Ermanno Amata INAF Istituto di Fisica dello Spazio Interplanetario Roma ESWW5, Bruxelles, 20 November 2008.

SuperDARN real time products for Space Weather Ermanno Amata INAF Istituto di Fisica dello Spazio Interplanetario Roma ESWW5, Bruxelles, 20 November 2008.
Profilers. Wind profilers are phased array radars that measure the wind as a function of height above a fixed location. Characteristics: Wavelength: 33.

Profilers. Wind profilers are phased array radars that measure the wind as a function of height above a fixed location. Characteristics: Wavelength: 33.
1 UNCLASSIFIED – FOUO – Not for Public Release Operational Space Environment Network Display (OpSEND) & the Scintillation Network Decision Aid Dr. Keith.

1 UNCLASSIFIED – FOUO – Not for Public Release Operational Space Environment Network Display (OpSEND) & the Scintillation Network Decision Aid Dr. Keith.
ElectroScience Lab IGARSS 2011 Vancouver Jul 26th, 2011 Chun-Sik Chae and Joel T. Johnson ElectroScience Laboratory Department of Electrical and Computer.

ElectroScience Lab IGARSS 2011 Vancouver Jul 26th, 2011 Chun-Sik Chae and Joel T. Johnson ElectroScience Laboratory Department of Electrical and Computer.
Solar wind-magnetosphere- atmosphere coupling: effects of magnetic storms and substorms in atmospheric electric field variations Kleimenova N., Kozyreva.

Solar wind-magnetosphere- atmosphere coupling: effects of magnetic storms and substorms in atmospheric electric field variations Kleimenova N., Kozyreva.
The TIDDBIT HF Doppler Radar G. Crowley and F. Rodrigues

The TIDDBIT HF Doppler Radar G. Crowley and F. Rodrigues
Efficient design of a C-band aperture-coupled stacked microstrip array using Nexxim and Designer Alberto Di Maria German Aerospace Centre (DLR) – Microwaves.

Efficient design of a C-band aperture-coupled stacked microstrip array using Nexxim and Designer Alberto Di Maria German Aerospace Centre (DLR) – Microwaves.

Similar presentations

Ads by Google