Kazue Takahashi Print


  240-228-5782

  Kazue.Takahashi@jhuapl.edu

: SES

:   None

:  Heliophysics

  Parker Solar Probe, Van Allen Probes

 
Degree Field of Study Year Attained Institution Name
Ph.D. Geophysics and Space Physics 1983 UCLA
M.Sci. Geophysics 1978 Tohoku University
B.Sci. Geophysics 1976 Tohoku University

Dr. Takahashi has extensive research experience in the field of magnetospheric ULF waves. He has published numerous papers on ULF waves observed by satellites including ATS, ISEE, AMPTE/CCE, CRRES, SCATHA, GOES, Geotail, THEMIS, and  Van Allen Probes.  Results reported in these papers include: multiharmonic toroidal waves; field line mode structure of compressional Pc5 waves and giant pulsations; cavity mode Pi2 waves; solar cycle variation of plasma mass density; and energy and pitch angle dependence of ion flux oscillations induced by standing Alfvén waves. Dr. Takahashi has contributed to the magnetospheric physics community as a convener of meetings and sessions; as a IAGA reporter on ULF waves; by serving on review panels; as a Co-chair of the new NSF GEM Focus Group on ULF waves; and as a member of the Van Allen Probes Project Science Team with special attention to coordination with the upcoming Japanese ERG mission.

 
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Start Year End Year Description
2003 Current Principal Professional Staff, APL
1998 2003 Senior Professional Staff, APL
1992 1998 Associate Professor, Nagoya University
1990 1992 Senior Professional Staff, APL
1986 1990 Postdoctoral Research Associate, APL
1983 1986 Postdoctoral Fellow, Los Alamos National Laboratory
1983 1983 Postdoctoral Research Geophysicist, UCLA
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Year Description
2015 Editor's Citation for Excellence in Refereeing Journal of Geophysical Research -Space Physics, American Geophysical Union
1996 Tanakadate Award, Society of Geomagnetism and Earth, Planetary and Space Sciences, Japan
1990 NASA Group Achievement Award on AMPTE Mission Operation
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The following publication information was downloaded from http://www.researcherId.com/rid/H-3060-2016.
Le, G., Chi, P. J., Strangeway, R. J., Russell, C. T., Slavin, J. A., Takahashi, K., Singer, H. J., Anderson, B. J., Bromund, K., Fischer, D., Kepko, E. L., Magnes, W., Nakamura, R., Plaschke, F., Torbert, R. B., (2017), Global observations of magnetospheric high-m poloidal waves during the 22 June 2015 magnetic storm, Geophysical Research Letters, 44, 3456-3464

Min, Kyungguk, Takahashi, Kazue, Ukhorskiy, Aleksandr Y., Manweiler, JerryW., Spence, Harlan E., Singer, Howard J., Claudepierre, Seth G., Larsen, Brian A., Soto-Chavez, A. Rualdo, Cohen, Ross J., (2017), Second harmonic poloidal waves observed by Van Allen Probes in the dusk-midnight sector, Journal of Geophysical Research-Space Physics, 122, 3013-3039

Denton, R. E., Takahashi, Kazue, Amoh, Justice, Jr., Singer, H. J., (2016), Mass density at geostationary orbit and apparent mass refilling, Journal of Geophysical Research-Space Physics, 121, 2962-2975

Nakayama, Y., Ebihara, Y., Ohtani, S., Gkioulidou, M., Takahashi, K., Kistler, L. M., Tanaka, T., (2016), Void structure of O+ ions in the inner magnetosphere observed by the Van Allen Probes, Journal of Geophysical Research-Space Physics, 121, 11698-11713

Takahashi, Kazue, Hartinger, Michael D., Malaspina, David M., Smith, Charles W., Koga, Kiyokazu, Singer, Howard J., Fruehauff, Dennis, Baishev, Dmitry G., Moiseev, Alexey V., Yoshikawa, Akimasa, (2016), Propagation of ULF waves from the upstream region to the midnight sector of the inner magnetosphere, Journal of Geophysical Research-Space Physics, 121, 8428-8447

Takahashi, Kazue, Lee, Dong-Hun, Merkin, Viacheslav G., Lyon, John G., Hartinger, Michael D., (2016), On the origin of the dawn-dusk asymmetry of toroidal Pc5 waves, Journal of Geophysical Research-Space Physics, 121, 9632-9650

Dai, Lei, Takahashi, Kazue, Lysak, Robert, Wang, Chi, Wygant, John R., Kletzing, Craig, Bonnell, John, Cattell, Cynthia A., Smith, Charles W., MacDowall, Robert J., Thaller, Scott, Breneman, Aaron, Tang, Xiangwei, Tao, Xin, Chen, Lunjin, (2015), Storm time occurrence and spatial distribution of Pc4 poloidal ULF waves in the inner magnetosphere: A Van Allen Probes statistical study, Journal of Geophysical Research-Space Physics, 120, 4748-4762

Denton, R. E., Takahashi, Kazue, Lee, Jimyoung, Zeitler, C. K., Wimer, N. T., Litscher, L. E., Singer, H. J., Min, Kyungguk, (2015), Field line distribution of mass density at geostationary orbit, Journal of Geophysical Research-Space Physics, 120, 4409-4422

Jaynes, A. N., Lessard, M. R., Takahashi, K., Ali, A. F., Malaspina, D. M., Michell, R. G., Spanswick, E. L., Baker, D. N., Blake, J. B., Cully, C., Donovan, E. F., Kletzing, C. A., Reeves, G. D., Samara, M., Spence, H. E., Wygant, J. R., (2015), Correlated Pc4-5 ULF waves, whistler-mode chorus, and pulsating aurora observed by the Van Allen Probes and ground-based systems, Journal of Geophysical Research-Space Physics, 120, 8749-8761

Malaspina, David M., Claudepierre, Seth G., Takahashi, Kazue, Jaynes, Allison N., Elkington, Scot R., Ergun, Robert E., Wygant, John R., Reeves, Geoff D., Kletzing, Craig A., (2015), Kinetic Alfven waves and particle response associated with a shock-induced, global ULF perturbation of the terrestrial magnetosphere, Geophysical Research Letters, 42, 9203-9212

Motoba, T., Takahashi, K., Ukhorskiy, A., Gkioulidou, M., Mitchell, D. G., Lanzerotti, L. J., Korotova, G. I., Donovan, E. F., Wygant, J. R., Kletzing, C. A., Kurth, W. S., Blake, J. B., (2015), Link between premidnight second harmonic poloidal waves and auroral undulations: Conjugate observations with a Van Allen Probe spacecraft and a THEMIS all-sky imager, Journal of Geophysical Research-Space Physics, 120, 1814-1831

Motoba, Tetsuo, Takahashi, Kazue, Rodriguez, Juan V., Russell, Christopher T., (2015), Giant pulsations on the afternoonside: Geostationary satellite and ground observations, Journal of Geophysical Research-Space Physics, 120, 8350-8367

Takahashi, Kazue, Denton, Richard E., Kurth, William, Kletzing, Craig, Wygant, John, Bonnell, John, Dai, Lei, Min, Kyungguk, Smith, Charles W., MacDowall, Robert, (2015), Externally driven plasmaspheric ULF waves observed by the Van Allen Probes, Journal of Geophysical Research-Space Physics, 120, 526-552

Takahashi, Kazue, Hartinger, Michael D., Angelopoulos, Vassilis, Glassmeier, Karl-Heinz, (2015), A statistical study of fundamental toroidal mode standing Alfven waves using THEMIS ion bulk velocity data, Journal of Geophysical Research-Space Physics, 120, 6474-6495

Takahashi, Kazue, Waters, Colin, Glassmeier, Karl-Heinz, Kletzing, Craig A., Kurth, William S., Smith, Charles W., (2015), Multifrequency compressional magnetic field oscillations and their relation to multiharmonic toroidal mode standing Alfven waves, Journal of Geophysical Research-Space Physics, 120, 10384-10403

Turner, D. L., Claudepierre, S. G., Fennell, J. F., O'Brien, T. P., Blake, J. B., Lemon, C., Gkioulidou, M., Takahashi, K., Reeves, G. D., Thaller, S., Breneman, A., Wygant, J. R., Li, W., Runov, A., Angelopoulos, V., (2015), Energetic electron injections deep into the inner magnetosphere associated with substorm activity, Geophysical Research Letters, 42, 2079-2087

Denton, R. E., Takahashi, K., Thomsen, M. F., Borovsky, J. E., Singer, H. J., Wang, Y., Goldstein, J., Brandt, P. C., Reinisch, B. W., (2014), Evolution of mass density and O plus concentration at geostationary orbit during storm and quiet events, Journal of Geophysical Research-Space Physics, 119

Nose, M., Takahashi, K., Keika, K., Kistler, L. M., Koga, K., Koshiishi, H., Matsumoto, H., Shoji, M., Miyashita, Y., Nomura, R., (2014), Magnetic fluctuations embedded in dipolarization inside geosynchronous orbit and their associated selective acceleration of O+ ions, Journal of Geophysical Research-Space Physics, 119, 4639-4655

Takahashi, Kazue, Denton, Richard E., Hirahara, Masafumi, Min, Kyungguk, Ohtani, Shin-ichi, Sanchez, Ennio, (2014), Solar cycle variation of plasma mass density in the outer magnetosphere: Magnetoseismic analysis of toroidal standing Alfven waves detected by Geotail, Journal of Geophysical Research-Space Physics, 119, 8338-8356

Ukhorskiy, A. Y., Sitnov, M. I., Mitchell, D. G., Takahashi, K., Lanzerotti, L. J., Mauk, B. H., (2014), Rotationally driven 'zebra stripes' in Earth's inner radiation belt, Nature, 507, 338-+

Claudepierre, S. G., Mann, I. R., Takahashi, K., Fennell, J. F., Hudson, M. K., Blake, J. B., Roeder, J. L., Clemmons, J. H., Spence, H. E., Reeves, G. D., Baker, D. N., Funsten, H. O., Friedel, R. H. W., Henderson, M. G., Kletzing, C. A., Kurth, W. S., MacDowall, R. J., Smith, C. W., Wygant, J. R., (2013), Van Allen Probes observation of localized drift resonance between poloidal mode ultra-low frequency waves and 60 keV electrons, Geophysical Research Letters, 40, 4491-4497

Dai, Lei, Takahashi, Kazue, Wygant, John R., Chen, Liu, Bonnell, John, Cattell, Cynthia A., Thaller, Scott, Kletzing, Craig, Smith, Charles W., MacDowall, Robert J., Baker, Daniel N., Blake, J. Bernard, Fennell, Joseph, Claudepierre, Seth, Funsten, Herbert O., Reeves, Geoffrey D., Spence, Harlan E., (2013), Excitation of poloidal standing Alfven waves through drift resonance wave-particle interaction, Geophysical Research Letters, 40, 4127-4132

Hartinger, M. D., Angelopoulos, V., Moldwin, M. B., Takahashi, K., Clausen, L. B. N., (2013), Statistical study of global modes outside the plasmasphere, Journal of Geophysical Research-Space Physics, 118, 804-822

Hartinger, M. D., Moldwin, M. B., Takahashi, K., Bonnell, J. W., Angelopoulos, V., (2013), Survey of the ULF wave Poynting vector near the Earth's magnetic equatorial plane, Journal of Geophysical Research-Space Physics, 118, 6212-6227

Keika, Kunihiro, Takahashi, Kazue, Ukhorskiy, Aleksandir Y., Miyoshi, Yoshizumi, (2013), Global characteristics of electromagnetic ion cyclotron waves: Occurrence rate and its storm dependence, Journal of Geophysical Research-Space Physics, 118, 4135-4150

Kwon, H. -J., Kim, K. -H., Jun, C. -W., Takahashi, K., Lee, D. -H., Lee, E., Jin, H., Seon, J., Park, Y. -D., Hwang, J., (2013), Low-latitude Pi2 pulsations during intervals of quiet geomagnetic conditions (K-p <= 1), Journal of Geophysical Research-Space Physics, 118, 6145-6153

Liou, K., Takahashi, K., (2013), Observations of field line resonance with global auroral images, Journal of Atmospheric and Solar-Terrestrial Physics, 105, 152-159

Liou, K., Takahashi, K., Anderson, B. J., Nose, M., Iyemori, T., (2013), Assessment of the auroral electrojet index performance under various geomagnetic conditions, Journal of Atmospheric and Solar-Terrestrial Physics, 92, 31-36

Liu, W., Cao, J. B., Li, X., Sarris, T. E., Zong, Q. -G., Hartinger, M., Takahashi, K., Zhang, H., Shi, Q. Q., Angelopoulos, V., (2013), Poloidal ULF wave observed in the plasmasphere boundary layer, Journal of Geophysical Research-Space Physics, 118, 4298-4307

Min, Kyungguk, Bortnik, Jacob, Denton, Richard E., Takahashi, Kazue, Lee, Jeongwoo, Singer, Howard J., (2013), Quiet time equatorial mass density distribution derived from AMPTE/CCE and GOES using the magnetoseismology technique, Journal of Geophysical Research-Space Physics, 118, 6090-6105

Motoba, T., Takahashi, K., Gjerloev, J., Ohtani, S., Milling, D. K., (2013), The role of compressional Pc5 pulsations in modulating precipitation of energetic electrons, Journal of Geophysical Research-Space Physics, 118, 7728-7739

Takahashi, Kazue, Hartinger, Michael D., Angelopoulos, Vassilis, Glassmeier, Karl-Heinz, Singer, Howard J., (2013), Multispacecraft observations of fundamental poloidal waves without ground magnetic signatures, Journal of Geophysical Research-Space Physics, 118, 4319-4334

Kwon, H. -J., Kim, K. -H., Lee, D. -H., Takahashi, K., Angelopoulos, V., Lee, E., Jin, H., Park, Y. -D., Lee, J., Sutcliffe, P. R., Auster, H. U., (2012), Local time-dependent Pi2 frequencies confirmed by simultaneous observations from THEMIS probes in the inner magnetosphere and at low-latitude ground stations, Journal of Geophysical Research-Space Physics, 117

Takahashi, Kazue, Yumoto, Kiyohumi, Claudepierre, Seth G., Sanchez, Ennio R., Troshichev, Oleg A., Janzhura, Alexander S., (2012), Dependence of the amplitude of Pc5-band magnetic field variations on the solar wind and solar activity, Journal of Geophysical Research-Space Physics, 117

Denton, R. E., Thomsen, M. F., Takahashi, K., Anderson, R. R., Singer, H. J., (2011), Solar cycle dependence of bulk ion composition at geosynchronous orbit, Journal of Geophysical Research-Space Physics, 116

Keiling, Andreas, Takahashi, Kazue, (2011), Review of Pi2 Models, Space Science Reviews, 161, 63-148

Nose, M., Takahashi, K., Anderson, R. R., Singer, H. J., (2011), Oxygen torus in the deep inner magnetosphere and its contribution to recurrent process of O+-rich ring current formation, Journal of Geophysical Research-Space Physics, 116

Takahashi, Kazue, Glassmeier, Karl-Heinz, Angelopoulos, Vassilis, Bonnell, John, Nishimura, Yukitoshi, Singer, Howard J., Russell, Christopher T., (2011), Multisatellite observations of a giant pulsation event, Journal of Geophysical Research-Space Physics, 116

Teramoto, M., Takahashi, K., Nose, M., Lee, D. -H., Sutcliffe, P. R., (2011), Pi2 pulsations in the inner magnetosphere simultaneously observed by the Active Magnetospheric Particle Tracer Explorers/Charge Composition Explorer and Dynamics Explorer 1 satellites, Journal of Geophysical Research-Space Physics, 116

Yang, B., Zong, Q. -G., Fu, S. Y., Takahashi, K., Li, X., Wang, Y. F., Pu, Z. Y., Fu, H. S., Reme, H., Yue, C., Zheng, H., Sheng, C., (2011), Pitch angle evolutions of oxygen ions driven by storm time ULF poloidal standing waves, Journal of Geophysical Research-Space Physics, 116

Hartinger, Michael, Moldwin, Mark B., Angelopoulos, Vassilis, Takahashi, Kazue, Singer, Howard J., Anderson, Roger R., Nishimura, Yukitoshi, Wygant, John R., (2010), Pc5 wave power in the quiet-time plasmasphere and trough: CRRES observations, Geophysical Research Letters, 37

Kim, K-H., Takahashi, K., Ohtani, S., Yumoto, K., Lee, D-H., Jin, H., Seon, J., Sung, S-K., (2010), Substorm and pseudo-substorm Pi2 pulsations observed during the interval of quasi-periodic magnetotail flow bursts: A case study, Earth Planets and Space, 62, 413-425

Kim, K. -H., Kwon, H. -J., Lee, D. -H., Jin, H., Takahashi, K., Angelopoulos, V., Bonnell, J. W., Glassmeier, K. H., Park, Y. -D., Sutcliffe, P., (2010), A comparison of THEMIS Pi2 observations near the dawn and dusk sectors in the inner magnetosphere, Journal of Geophysical Research-Space Physics, 115

Takahashi, Kazue, Bonnell, John, Glassmeier, Karl-Heinz, Angelopoulos, Vassilis, Singer, Howard J., Chi, Peter J., Denton, Richard E., Nishimura, Yukitoshi, Lee, Dong-Hun, Nose, Masahito, Liu, Wenlong, (2010), Multipoint observation of fast mode waves trapped in the dayside plasmasphere, Journal of Geophysical Research-Space Physics, 115

Takahashi, Kazue, Denton, Richard E., Singer, Howard J., (2010), Solar cycle variation of geosynchronous plasma mass density derived from the frequency of standing Alfven waves, Journal of Geophysical Research-Space Physics, 115

Ukhorskiy, A. Y., Shprits, Y. Y., Anderson, B. J., Takahashi, K., Thorne, R. M., (2010), Rapid scattering of radiation belt electrons by storm-time EMIC waves, Geophysical Research Letters, 37

Denton, R. E., Decreau, P., Engebretson, M. J., Darrouzet, F., Posch, J. L., Mouikis, C., Kistler, L. M., Cattell, C. A., Takahashi, K., Schaefer, S., Goldstein, J., (2009), Field line distribution of density at L=4.8 inferred from observations by CLUSTER, Annales Geophysicae, 27, 705-724

Takahashi, Kazue, Berube, David, Lee, Dong-Hun, Goldstein, Jerry, Singer, Howard J., Honary, Farideh, Moldwin, Mark B., (2009), Possible evidence of virtual resonance in the dayside magnetosphere, Journal of Geophysical Research-Space Physics, 114

Ukhorskiy, A. Y., Sitnov, M. I., Takahashi, K., Anderson, B. J., (2009), Radial transport of radiation belt electrons due to stormtime Pc5 waves, Annales Geophysicae, 27, 2173-2181

Liou, K., Takahashi, K., Newell, P. T., Yumoto, K., (2008), Polar Ultraviolet Imager observations of solar wind-driven ULF auroral pulsations, Geophysical Research Letters, 35

Takahashi, Kazue, Ohtani, Shin-ichi, Denton, Richard E., Hughes, W. Jeffrey, Anderson, Roger R., (2008), Ion composition in the plasma trough and plasma plume derived from a Combined Release and Radiation Effects Satellite magnetoseismic study, Journal of Geophysical Research-Space Physics, 113

Takahashi, Kazue, Ukhorskiy, Aleksandr Y., (2008), Timing analysis of the relationship between solar wind parameters and geosynchronous Pc5 amplitude, Journal of Geophysical Research-Space Physics, 113

Chi, Peter J., Takahashi, Kazue, Denton, Richard E., Lysak, Robert L., (2007), Special issue: Ultra-low frequency waves in the magnetosphere - Preface, Planetary and Space Science, 55, 679

Gjerloev, J. W., Greenwald, R. A., Waters, C. L., Takahashi, K., Sibeck, D., Oksavik, K., Barnes, R., Baker, J., Ruohoniemi, J. M., (2007), Observations of Pi2 pulsations by the Wallops HF radar in association with substorm expansion, Geophysical Research Letters, 34

Kim, K.-H., Takahashi, K., Ohtani, S., Sung, S.-K., (2007), Statistical analysis of the relationship between earthward flow bursts in the magnetotail and low-latitude Pi2 pulsations, Journal of Geophysical Research-Space Physics, 112

Takahashi, Kazue, Denton, Richard E., (2007), Magnetospheric seismology using multiharmonic toroidal waves observed at geosynchronous orbit, Journal of Geophysical Research-Space Physics, 112

Takahashi, Kazue, Ukhorskiy, Aleksandr Y., (2007), Solar wind control of Pc5 pulsation power at geosynchronous orbit, Journal of Geophysical Research-Space Physics, 112

Denton, RE, Goldsten, J, Lee, DH, King, RA, Dent, ZC, Gallagher, DL, Berube, D, Takahashi, K, Nose, M, Milling, D, Honary, F, (2006), Realistic magnetospheric density model for 29 August 2000, Journal of Atmospheric and Solar-Terrestrial Physics, 68, 615-628

Denton, RE, Takahashi, K, Galkin, IA, Nsumei, PA, Huang, X, Reinisch, BW, Anderson, RR, Sleeper, MK, Hughes, WJ, (2006), Distribution of density along magnetospheric field lines, Journal of Geophysical Research-Space Physics, 111

Sung, S. -K., Kim, K. -H., Lee, D. -H., Takahashi, K., Cattell, C. A., Andre, M., Khotyaintsev, Y. V., Balogh, A., (2006), Simultaneous ground-based and satellite observations of Pc5 geomagnetic pulsations: A case study using multipoint measurements, Earth Planets and Space, 58, 873-883

Takahashi, K, Denton, RE, Anderson, RR, Hughes, WJ, (2006), Mass density inferred from toroidal wave frequencies and its comparison to electron density, Journal of Geophysical Research-Space Physics, 111

Ukhorskiy, AY, Anderson, BJ, Takahashi, K, Tsyganenko, NA, (2006), Impact of ULF oscillations in solar wind dynamic pressure on the outer radiation belt electrons, Geophysical Research Letters, 33

Zheng, Y, Lui, ATY, Mann, IR, Takahashi, K, Watermann, J, Chen, SH, Rae, IJ, Mukai, T, Russell, CT, Balogh, A, Pfaff, RF, Reme, H, (2006), Coordinated observation of field line resonance in the mid-tail, Annales Geophysicae, 24, 707-723

Keika, K, Nose, M, Ohtani, S, Takahashi, K, Christon, SP, McEntire, RW, (2005), Outflow of energetic ions from the magnetosphere and its contribution to the decay of the storm time ring current, Journal of Geophysical Research-Space Physics, 110

Kim, KH, Lee, DH, Denton, RE, Takahashi, K, Goldstein, J, Moon, YJ, Yumoto, K, Pyo, YS, Keiling, A, (2005), Pi2 pulsations in a small and strongly asymmetric plasmasphere, Journal of Geophysical Research-Space Physics, 110

Kim, KH, Lee, DH, Takahashi, K, Russell, CT, Moon, YJ, Yumoto, K, (2005), Pi2 pulsations observed from the Polar satellite outside the plasmapause, Geophysical Research Letters, 32

Kim, KH, Takahashi, K, Lee, DH, Sutcliffe, PR, Yumoto, K, (2005), Pi2 pulsations associated with poleward boundary intensifications during the absence of substorms, Journal of Geophysical Research-Space Physics, 110

Takahashi, K, Liou, K, Yumoto, K, Kitamura, K, Nose, M, Honary, F, (2005), Source of Pc4 pulsations observed on the nightside, Journal of Geophysical Research-Space Physics, 110

Ukhorskiy, AY, Takahashi, K, Anderson, BJ, Korth, H, (2005), Impact of toroidal ULF waves on the outer radiation belt electrons, Journal of Geophysical Research-Space Physics, 110

Wing, S, Johnson, JR, Jen, J, Meng, CI, Sibeck, DG, Bechtold, K, Freeman, J, Costello, K, Balikhin, M, Takahashi, K, (2005), Kp forecast models, Journal of Geophysical Research-Space Physics, 110

Denton, RE, Takahashi, K, Anderson, RR, Wuest, MP, (2004), Magnetospheric toroidal Alfven wave harmonics and the field line distribution of mass density, Journal of Geophysical Research-Space Physics, 109

Le, G, Russell, CT, Takahashi, K, (2004), Morphology of the ring current derived from magnetic field observations, Annales Geophysicae, 22, 1267-1295

Lee, DH, Kim, KH, Denton, RE, Takahashi, K, (2004), Effects of ionospheric damping on MHD wave mode structure, Earth Planets and Space, 56, E33-E36

Takahashi, K, Denton, RE, Anderson, RR, Hughes, WJ, (2004), Frequencies of standing Alfven wave harmonics and their implication for plasma mass distribution along geomagnetic field lines: Statistical analysis of CRRES data, Journal of Geophysical Research-Space Physics, 109

Takahashi, K, Liou, K, (2004), Longitudinal structure of low-latitude Pi2 pulsations and its dependence on aurora, Journal of Geophysical Research-Space Physics, 109

Takahashi, K, Meng, C, Kamei, T, Kikuchi, T, Kunitake, M, (2004), Near-real-time Auroral Electrojet index: An international collaboration makes rapid delivery of Auroral Electrojet index, Space Weather-the International Journal of Research and Applications, 2

Nose, M, Takahashi, K, Uozumi, T, Yumoto, K, Miyoshi, Y, Morioka, A, Milling, DK, Sutcliffe, PR, Matsumoto, H, Goka, T, Nakata, H, (2003), Multipoint observations of a Pi2 pulsation on morningside: The 20 September 1995 event, Journal of Geophysical Research-Space Physics, 108

Takahashi, K, Anderson, RR, Hughes, WJ, (2003), Pi2 pulsations with second harmonic: CRRES observations in the plasmasphere, Journal of Geophysical Research-Space Physics, 108

Takahashi, K, Lee, DH, Nose, M, Anderson, RR, Hughes, WJ, (2003), CRRES electric field study of the radial mode structure of Pi2 pulsations, Journal of Geophysical Research-Space Physics, 108

Anderson, BJ, Takahashi, K, Kamei, T, Waters, CL, Toth, BA, (2002), Birkeland current system key parameters derived from Iridium observations: Method and initial validation results, Journal of Geophysical Research-Space Physics, 107

Denton, RE, Lee, DH, Takahashi, K, Goldstein, J, Anderson, R, (2002), Quantitative test of the cavity resonance explanation of plasmaspheric Pi2 frequencies, Journal of Geophysical Research-Space Physics, 107

Kim, KH, Cattell, CA, Lee, DH, Takahashi, K, Yumoto, K, Shiokawa, K, Mozer, FS, Andre, M, (2002), Magnetospheric responses to sudden and quasiperiodic solar wind variations, Journal of Geophysical Research-Space Physics, 107

Ohtani, S, Takahashi, K, Lui, ATY, (2002), Electron dynamics in the current disruption region, Journal of Geophysical Research-Space Physics, 107

Takahashi, K, Denton, RE, Gallagher, D, (2002), Toroidal wave frequency at L=6-10: Active Magnetospheric Particle Tracer Explorers/CCE observations and comparison with theoretical model, Journal of Geophysical Research-Space Physics, 107

Takahashi, K, Liou, K, Yumoto, K, (2002), Correlative study of ultraviolet aurora and low-latitude Pi2 pulsations, Journal of Geophysical Research-Space Physics, 107

Waters, CL, Takahashi, K, Lee, DH, Anderson, BJ, (2002), Detection of ultralow-frequency cavity modes using spacecraft data, Journal of Geophysical Research-Space Physics, 107

Kim, KH, Takahashi, K, Lee, DH, Lin, N, Cattell, CA, (2001), A comparison of Pi2 pulsations in the inner magnetosphere and magnetic pulsations at geosynchronous orbit, Journal of Geophysical Research-Space Physics, 106, 18865-18872

Liou, K, Newell, PT, Meng, CI, Takahashi, K, Ohtani, SI, Lui, ATY, Brittnacher, M, Parks, G, (2001), Comment on "Evaluation of low-latitude Pi2 pulsations as indicators of substorm onset using Polar ultraviolet imagery" by K. Liou, et al. - Reply, Journal of Geophysical Research-Space Physics, 106, 18923-18926

Nose, M, Ohtani, S, Takahashi, K, Lui, ATY, McEntire, RW, Williams, DJ, Christon, SP, Yumoto, K, (2001), Ion composition of the near-Earth plasma sheet in storm and quiet intervals: Geotail/EPIC measurements, Journal of Geophysical Research-Space Physics, 106, 8391-8403

Sarafopoulos, DV, Takahashi, K, McEntire, RW, (2001), Periodic variations of magnetosheath energetic electron flux associated with global Pc5 pulsations, Journal of Geophysical Research-Space Physics, 106, 13037-13051

Takahashi, K, Ohtani, S, Hughes, WJ, Anderson, RR, (2001), CRRES observation of Pi2 pulsations: Wave mode inside and outside the plasmasphere, Journal of Geophysical Research-Space Physics, 106, 15567-15581

Takahashi, K, Toth, BA, Olson, JV, (2001), An automated procedure for near-real-time Kp estimates, Journal of Geophysical Research-Space Physics, 106, 21017-21032

Anderson, BJ, Takahashi, K, (2000), Pitch angle dispersion of ion injections, Journal of Geophysical Research-Space Physics, 105, 18709-18727

Anderson, BJ, Takahashi, K, Toth, BA, (2000), Sensing global Birkeland currents with Iridium (R) engineering magnetometer data, Geophysical Research Letters, 27, 4045-4048

Ivchenko, NV, Sibeck, DG, Takahashi, K, Kokubun, S, (2000), A statistical study of the magnetosphere boundary crossings by the Geotail satellite, Geophysical Research Letters, 27, 2881-2884

Liou, K, Meng, CI, Newell, PT, Takahashi, K, Ohtani, SI, Lui, ATY, Brittnacher, M, Parks, G, (2000), Evaluation of low-latitude Pi2 pulsations as indicators of substorm onset using Polar ultraviolet imagery, Journal of Geophysical Research-Space Physics, 105, 2495-2505

Ohtani, S, Lui, ATY, Takahashi, K, Mitchell, DG, Sarris, T, (2000), Ion dynamics and tail current intensification prior to dipolarization: The June 1, 1985, event, Journal of Geophysical Research-Space Physics, 105, 25233-25246

Ohtani, S, Newell, PT, Takahashi, K, (2000), Dawn-dusk profile of field-aligned currents on May 11, 1999: A familiar pattern driven by an unusual cause, Geophysical Research Letters, 27, 3777-3780

Ohtani, S, Rostoker, G, Takahashi, K, Angelopoulos, V, Nakamura, M, Waters, C, Singer, H, Kokubun, S, Tsuruda, K, Hughes, WJ, Potemra, TA, Zanetti, LJ, Gary, JB, Lui, ATY, Williams, DJ, (1999), Coordinated ISTP satellite and ground observations of morningside Pc5 waves, Journal of Geophysical Research-Space Physics, 104, 2381-2397

Sibeck, DG, Borodkova, NL, Schwartz, SJ, Owen, CJ, Kessel, R, Kokubun, S, Lepping, RP, Lin, R, Luhr, H, McEntire, RW, Meng, CI, Mukai, T, Nemecek, Z, Parks, G, Phan, TD, Romanov, SA, Safrankova, J, Sauvaud, JA, Singer, HJ, Solovyev, SI, Szabo, A, Takahashi, K, Williams, DJ, Yumoto, K, Zastenker, GN, (1999), Comprehensive study of the magnetospheric response to a hot flow anomaly, Journal of Geophysical Research-Space Physics, 104, 4577-4593

Takahashi, K, Anderson, BJ, Yumoto, K, (1999), Upper Atmosphere Research Satellite observation of a Pi2 pulsation, Journal of Geophysical Research-Space Physics, 104, 25035-25045

Takahashi, K, Hughes, WJ, Anderson, RR, Solovyev, SI, (1999), CRRES satellite observations associated with low-latitude Pi2 pulsations, Journal of Geophysical Research-Space Physics, 104, 17431-17440

Kim, KH, Takahashi, K, Anderson, BJ, (1998), Ground-satellite coherence analysis of Pc3 pulsations, Journal of Geophysical Research-Space Physics, 103, 11755-11769

Ohtani, S, Takahashi, K, Higuchi, T, Lui, ATY, Spence, HE, Fennell, JF, (1998), AMPTE/CCE-SCATHA simultaneous observations of substorm-associated magnetic fluctuations, Journal of Geophysical Research-Space Physics, 103, 4671-4682

Sibeck, DG, Takahashi, K, Yumoto, K, Reeves, GD, (1998), Concerning the origin of signatures in dayside equatorial ground magnetograms, Journal of Geophysical Research-Space Physics, 103, 6763-6769

Takahashi, K, (1998), ULF waves: 1997 IAGA division 3 reporter review, Annales Geophysicae-Atmospheres Hydrospheres and Space Sciences, 16, 787-803

Sibeck, DG, Takahashi, K, Kokubun, S, Mukai, T, Ogilvie, KW, Szabo, A, (1997), A case study of oppositely propagating Alfvenic fluctuations in the solar wind and magnetosheath, Geophysical Research Letters, 24, 3133-3136

Takahashi, K, Anderson, BJ, Ohtani, S, Reeves, GD, Takahashi, S, Sarris, TE, Mursula, K, (1997), Drift-shell splitting of energetic ions injected at pseudo-substorm onsets, Journal of Geophysical Research-Space Physics, 102, 22117-22130

Takahashi, K, Anderson, BJ, Ohtani, S, (1996), Multisatellite study of nightside transient toroidal waves, Journal of Geophysical Research-Space Physics, 101, 24815-24825

MATSUOKA, H, TAKAHASHI, K, YUMOTO, K, ANDERSON, BJ, SIBECK, DG, (1995), OBSERVATION AND MODELING OF COMPRESSIONAL PI-3 MAGNETIC PULSATIONS, Journal of Geophysical Research-Space Physics, 100, 12103-12115

OHTANI, S, HIGUCHI, T, LUI, ATY, TAKAHASHI, K, (1995), MAGNETIC FLUCTUATIONS ASSOCIATED WITH TAIL CURRENT DISRUPTION - FRACTAL ANALYSIS, Journal of Geophysical Research-Space Physics, 100, 19135-19145

TAKAHASHI, K, OHTANI, S, ANDERSON, BJ, (1995), STATISTICAL-ANALYSIS OF PI-2 PULSATIONS OBSERVED BY THE AMPTE-CCE SPACECRAFT IN THE INNER MAGNETOSPHERE, Journal of Geophysical Research-Space Physics, 100, 21929-21941

CHENG, CZ, QIAN, Q, TAKAHASHI, K, LUI, ATY, (1994), BALLOONING-MIRROR INSTABILITY AND INTERNALLY DRIVEN PC-4-5 WAVE EVENTS, Journal of Geomagnetism and Geoelectricity, 46, 997-1009

FARRUGIA, CJ, FREEMAN, MP, BURLAGA, LF, LEPPING, RP, TAKAHASHI, K, (1993), THE EARTHS MAGNETOSPHERE UNDER CONTINUED FORCING - SUBSTORM ACTIVITY DURING THE PASSAGE OF AN INTERPLANETARY MAGNETIC CLOUD, Journal of Geophysical Research-Space Physics, 98, 7657-7671

OHTANI, S, ANDERSON, BJ, SIBECK, DG, NEWELL, PT, ZANETTI, LJ, POTEMRA, TA, TAKAHASHI, K, LOPEZ, RE, ANGELOPOULOS, V, NAKAMURA, R, KLUMPAR, DM, RUSSELL, CT, (1993), A MULTISATELLITE STUDY OF A PSEUDO-SUBSTORM ONSET IN THE NEAR-EARTH MAGNETOTAIL, Journal of Geophysical Research-Space Physics, 98, 19355-19367