Presentation is loading. Please wait.

Presentation is loading. Please wait.

Seasonal dependence of the nighttime traveling ionospheric disturbances in the mid-latitude ionosphere A．Saito1,2, M.C. Kelley1, T. Tsugawa2, J.J. Makela1,

Published byBernadette Mavis Melton Modified over 5 years ago

Similar presentations

Presentation on theme: "Seasonal dependence of the nighttime traveling ionospheric disturbances in the mid-latitude ionosphere A．Saito1,2, M.C. Kelley1, T. Tsugawa2, J.J. Makela1,"— Presentation transcript:

1 Seasonal dependence of the nighttime traveling ionospheric disturbances in the mid-latitude ionosphere A．Saito1,2, M.C. Kelley1, T. Tsugawa2, J.J. Makela1, Y. Otsuka3, and S. Miyazaki4 School of Electrical and Computer Engineering, Cornell University Department of Geophysics, Graduate School of Science, Kyoto University Solar-Terrestrial Environment Laboratory, Nagoya University Geographical Survey Institute A GPS network in Japan has detected TEC wave fronts that travel to the southwest in the nighttime. Medium-scale traveling ionosphere disturbances (MSTIDs) Local time, seasonal, latitudinal and solar cycle dependencies of these MSTIDs

2

3 Standard deviation of TEC over the MU radar: amplitude of MSTIDs May 16-24, Geomagnetic Activity: SKp SKp:19 17+ 17 11- 18 22 14- 20- 21

4 Summer Equinox Winter

5

6 Standard deviation of TEC
Ratio to the background TEC

7 Standard deviation of TEC Tsukuba January 1994 – August 2000
Ratio to the background TEC Tsukuba January 1994 – August 2000

8 CGM-Lat: 38.6 (Receiver 0001) CGM-Lat: 33.3 (Receiver 0183) CGM-Lat: 27.4 (Receiver 0428) CGM-Lat: 21.5 (Receiver 0494)

9

10 West Pacific Sector (South): Alice Springs
European Sector: Noto Long: 15.0, Lat: 36.9, CGM-Lat: 29.1 West Pacific Sector (South): Alice Springs Long: 133.9, Lat: -23.7, CGM-Lat: -34.2 American Sector (South): Isabella Long: 292.9, Lat: 18.5, CGM-Lat: 28.9 American Sector (South): La Plata Long: 302.1, Lat: -34.9, CGM-Lat: -23.1

11 Summary Medium-scale traveling ionospheric disturbances in the midlatitude ionosphere detected with total electron content observation by GPS receivers. Propagation velocity:100m/s, wavelength: 300km Nighttime: Southwestward propagation, Summer and Winter Daytime: Southward (south-southeastward) propagation, Winter Daytime peak is common at any longitudes. Nighttime peaks show longitudinal differences. Day-to-day variation: No geomagnetic activity dependency Low amplitude in the high solar activity period Amplitude of nighttime TID is large at lower latitudes. [CGM-Lat: degrees]

Download ppt "Seasonal dependence of the nighttime traveling ionospheric disturbances in the mid-latitude ionosphere A．Saito1,2, M.C. Kelley1, T. Tsugawa2, J.J. Makela1,"

Similar presentations

University of Bath 4D ionisation dynamics during storms of the recent solar maximum Cathryn Mitchell, Ping Yin, Paul Spencer and Dmitriy Pokhotelov, University.

University of Bath 4D ionisation dynamics during storms of the recent solar maximum Cathryn Mitchell, Ping Yin, Paul Spencer and Dmitriy Pokhotelov, University.
Ionosphere Scintillation and Earthquakes

Ionosphere Scintillation and Earthquakes
Ionosphere Climate Studied by F3 / COSMIC Constellation C. H. Liu Academia Sinica In Collaboration with Tulasi Ram, C.H. Lin and S.Y. Su.

Ionosphere Climate Studied by F3 / COSMIC Constellation C. H. Liu Academia Sinica In Collaboration with Tulasi Ram, C.H. Lin and S.Y. Su.
CISM All-hands Meeting Boulder, CO 15-17 Sept. 2008 CMIT Simulations of the Initial Phase of Geomagnetic Storms Wenbin Wang, Jiuhou Lei, Alan Burns, Stan.

CISM All-hands Meeting Boulder, CO Sept CMIT Simulations of the Initial Phase of Geomagnetic Storms Wenbin Wang, Jiuhou Lei, Alan Burns, Stan.
WANG Jianjun 1, YANG Dongmei 2 ， ZHANG Suqing 2 ， ZHU Rong 2 1 Earthquake Administration of Gansu Province, China, 2 Institute of Geophysics,

WANG Jianjun 1, YANG Dongmei 2 ， ZHANG Suqing 2 ， ZHU Rong 2 1 Earthquake Administration of Gansu Province, China, 2 Institute of Geophysics,
“EQUATORIAL TEC OVER SOUTH AMERICAN SECTOR WITH DIFFERENT MAGNETIC DECLINATION ANGLES” P. A. B. Nogueira *1, M. A. Abdu 1, J. R. Souza 1, I. S. Batista.

“EQUATORIAL TEC OVER SOUTH AMERICAN SECTOR WITH DIFFERENT MAGNETIC DECLINATION ANGLES” P. A. B. Nogueira *1, M. A. Abdu 1, J. R. Souza 1, I. S. Batista.
Observation of Equatorial Electrodynamics in Africa using AMBER Magnetometer Network Endawoke Yizengaw Institute for Scientific Research, Boston College,

Observation of Equatorial Electrodynamics in Africa using AMBER Magnetometer Network Endawoke Yizengaw Institute for Scientific Research, Boston College,
Mars’ North and South Polar Hood Clouds Jennifer L. Benson Jet Propulsion Laboratory, California Institute of Technology July 22, 2010 Copyright 2010 California.

Mars’ North and South Polar Hood Clouds Jennifer L. Benson Jet Propulsion Laboratory, California Institute of Technology July 22, 2010 Copyright 2010 California.
Space weather phenomena in the ionosphere and their effect on GNSS (Presented by Japan) IPXX ICAO ISTF/4 New Delhi, India, 5th to 7th February 2014 SUMMARY.

Space weather phenomena in the ionosphere and their effect on GNSS (Presented by Japan) IPXX ICAO ISTF/4 New Delhi, India, 5th to 7th February 2014 SUMMARY.
Empirical Ionospheric Models from Worldwide Incoherent Scatter Radars Shun-Rong Zhang and John Holt MIT Haystack Observatory, USA Tony van Eyken EISCAT.

Empirical Ionospheric Models from Worldwide Incoherent Scatter Radars Shun-Rong Zhang and John Holt MIT Haystack Observatory, USA Tony van Eyken EISCAT.
PHYSICS AND ENGINEERING PHYSICS Mohsen Ghezelbash, H. Liu, A.V. Koustov and D. André F-region echo occurrence in the polar cap: A comparison of PolarDARN.

PHYSICS AND ENGINEERING PHYSICS Mohsen Ghezelbash, H. Liu, A.V. Koustov and D. André F-region echo occurrence in the polar cap: A comparison of PolarDARN.
Solar Cycle Variations of Topside Electron Density and Temperature: Altitudinal, Latitudinal, and Seasonal Differences. D. Bilitza (1), P. Richards (2),

Solar Cycle Variations of Topside Electron Density and Temperature: Altitudinal, Latitudinal, and Seasonal Differences. D. Bilitza (1), P. Richards (2),
The North East CIDR Array (NECA): A Chain of Ionospheric Tomography Receivers for Studying the Equatorward Edge of the Auroral Oval and the Mid-latitude.

The North East CIDR Array (NECA): A Chain of Ionospheric Tomography Receivers for Studying the Equatorward Edge of the Auroral Oval and the Mid-latitude.
On the Source of Steep TEC Gradients That Impact GPS E.A. Araujo-Pradere 1, T.J. Fuller-Rowell 1, M. Fedrizzi 2, M.V. Codrescu 1 1 CIRES-University of.

On the Source of Steep TEC Gradients That Impact GPS E.A. Araujo-Pradere 1, T.J. Fuller-Rowell 1, M. Fedrizzi 2, M.V. Codrescu 1 1 CIRES-University of.
Space Weather influence on satellite based navigation and precise positioning R. Warnant, S. Lejeune, M. Bavier Royal Observatory of Belgium Avenue Circulaire,

Space Weather influence on satellite based navigation and precise positioning R. Warnant, S. Lejeune, M. Bavier Royal Observatory of Belgium Avenue Circulaire,
N.V. Semenova Polar Geophysical Institute, Apatity, Russia.

N.V. Semenova Polar Geophysical Institute, Apatity, Russia.
Antarctic Peninsula is a very suitable area for experimental investigations of troposphere-to-ionosphere energy transfer because this place characterized.

Antarctic Peninsula is a very suitable area for experimental investigations of troposphere-to-ionosphere energy transfer because this place characterized.
Y. Bouderba, S. Naitamor, O. Boumia Research Center on Astronomy, Astrophysics and Geophysics. CRAAG (Algeria). 1 International School of Space Science,

Y. Bouderba, S. Naitamor, O. Boumia Research Center on Astronomy, Astrophysics and Geophysics. CRAAG (Algeria). 1 International School of Space Science,
Effects of ionospheric small- scale structures on GNSS G. WAUTELET Royal Meteorological Institute of Belgium Ionospheric Radio Systems & Techniques (IRST)

Effects of ionospheric small- scale structures on GNSS G. WAUTELET Royal Meteorological Institute of Belgium Ionospheric Radio Systems & Techniques (IRST)
New Results on the Midnight Temperature Maximum for mid-latitudes R. Mesquita (1), J. Meriwether (1), S. Sanders (1), J. Makela (2), D. Fisher (2). SITELatitude.

New Results on the Midnight Temperature Maximum for mid-latitudes R. Mesquita (1), J. Meriwether (1), S. Sanders (1), J. Makela (2), D. Fisher (2). SITELatitude.

Similar presentations

Ads by Google