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D-Index & Metrics

Earth Science

D-Index
71
Citations
20144
World Ranking
906
National Ranking
430

S.-I. Akasofu publication distribution in Earth Science in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Earth Science in 2026. The highlighted bar marks where S.-I. Akasofu sits on this spectrum.

38–42 publications: 1 scientists 43–47 publications: 0 scientists 48–52 publications: 3 scientists 53–57 publications: 8 scientists 58–62 publications: 11 scientists 63–67 publications: 16 scientists 68–72 publications: 24 scientists 73–77 publications: 31 scientists 78–82 publications: 49 scientists 83–87 publications: 77 scientists 88–92 publications: 86 scientists 93–97 publications: 88 scientists 98–102 publications: 92 scientists 103–107 publications: 84 scientists 108–112 publications: 102 scientists 113–117 publications: 108 scientists 118–122 publications: 117 scientists 123–127 publications: 126 scientists 128–132 publications: 146 scientists 133–137 publications: 114 scientists 138–142 publications: 102 scientists 143–147 publications: 127 scientists 148–152 publications: 102 scientists 153–157 publications: 112 scientists 158–162 publications: 102 scientists 163–167 publications: 127 scientists 168–172 publications: 121 scientists 173–177 publications: 112 scientists 178–182 publications: 109 scientists 183–187 publications: 98 scientists 188–192 publications: 92 scientists 193–197 publications: 105 scientists 198–202 publications: 77 scientists 203–207 publications: 80 scientists 208–212 publications: 89 scientists 213–217 publications: 70 scientists 218–222 publications: 74 scientists 223–227 publications: 74 scientists 228–232 publications: 70 scientists 233–237 publications: 67 scientists 238–242 publications: 59 scientists 243–247 publications: 67 scientists 248–252 publications: 51 scientists 253–257 publications: 46 scientists 258–262 publications: 41 scientists 263–267 publications: 39 scientists 268–272 publications: 34 scientists 273–277 publications: 39 scientists 278–282 publications: 35 scientists 283–287 publications: 36 scientists 288–292 publications: 35 scientists 293–297 publications: 29 scientists 298–302 publications: 23 scientists 303–307 publications: 39 scientists 308–312 publications: 34 scientists 313–317 publications: 23 scientists 318–322 publications: 18 scientists 323–327 publications: 18 scientists 328–332 publications: 21 scientists 333–337 publications: 20 scientists 338–342 publications: 15 scientists 343–347 publications: 13 scientists 348–352 publications: 24 scientists 353–357 publications: 25 scientists 358–362 publications: 10 scientists 363–367 publications: 20 scientists 368–372 publications: 17 scientists 373–377 publications: 18 scientists 378–382 publications: 15 scientists 383–387 publications: 7 scientists 388–392 publications: 22 scientists 393–397 publications: 9 scientists 398–402 publications: 11 scientists 403–407 publications: 16 scientists 408–412 publications: 4 scientists 413–417 publications: 5 scientists 418–422 publications: 14 scientists 423–427 publications: 8 scientists 428–432 publications: 7 scientists 433–437 publications: 7 scientists 438–442 publications: 10 scientists 443–447 publications: 10 scientists 448–452 publications: 3 scientists 453–457 publications: 9 scientists 458–462 publications: 11 scientists 463–467 publications: 4 scientists 468–472 publications: 6 scientists 473–477 publications: 11 scientists 478–482 publications: 8 scientists 483–487 publications: 2 scientists 488–492 publications: 3 scientists 493–497 publications: 4 scientists 498–502 publications: 4 scientists 503–507 publications: 4 scientists 508–509 publications: 4 scientists 510+ publications: 100 scientists
38 publications 510+

This scientist: 384 publications — 93rd percentile

93% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 510 publications or more.

S.-I. Akasofu D-index placement in Earth Science in 2026

The chart shows the D-index (discipline H-index) distribution of Earth Science scientists ranked by Research.com in 2026. The highlighted bar marks where S.-I. Akasofu sits on this spectrum.

30 D-Index: 15 scientists 31 D-Index: 42 scientists 32 D-Index: 60 scientists 33 D-Index: 90 scientists 34 D-Index: 103 scientists 35 D-Index: 108 scientists 36 D-Index: 142 scientists 37 D-Index: 147 scientists 38 D-Index: 147 scientists 39 D-Index: 152 scientists 40 D-Index: 143 scientists 41 D-Index: 157 scientists 42 D-Index: 141 scientists 43 D-Index: 151 scientists 44 D-Index: 140 scientists 45 D-Index: 135 scientists 46 D-Index: 121 scientists 47 D-Index: 108 scientists 48 D-Index: 128 scientists 49 D-Index: 111 scientists 50 D-Index: 106 scientists 51 D-Index: 112 scientists 52 D-Index: 102 scientists 53 D-Index: 103 scientists 54 D-Index: 94 scientists 55 D-Index: 61 scientists 56 D-Index: 101 scientists 57 D-Index: 71 scientists 58 D-Index: 65 scientists 59 D-Index: 78 scientists 60 D-Index: 93 scientists 61 D-Index: 56 scientists 62 D-Index: 58 scientists 63 D-Index: 52 scientists 64 D-Index: 63 scientists 65 D-Index: 49 scientists 66 D-Index: 53 scientists 67 D-Index: 57 scientists 68 D-Index: 50 scientists 69 D-Index: 44 scientists 70 D-Index: 44 scientists 71 D-Index: 31 scientists 72 D-Index: 33 scientists 73 D-Index: 33 scientists 74 D-Index: 23 scientists 75 D-Index: 32 scientists 76 D-Index: 24 scientists 77 D-Index: 17 scientists 78 D-Index: 19 scientists 79 D-Index: 9 scientists 80 D-Index: 21 scientists 81 D-Index: 20 scientists 82 D-Index: 17 scientists 83 D-Index: 19 scientists 84 D-Index: 19 scientists 85 D-Index: 14 scientists 86 D-Index: 6 scientists 87 D-Index: 14 scientists 88 D-Index: 17 scientists 89 D-Index: 10 scientists 90 D-Index: 8 scientists 91 D-Index: 8 scientists 92 D-Index: 9 scientists 93 D-Index: 6 scientists 94+ D-Index: 98 scientists
30 D-Index 94+

This scientist: 71 D-Index — 89th percentile

89% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 94 D-Index or more.

Research.com Recognitions

  • 2001 - Fellow of the American Association for the Advancement of Science (AAAS)
  • 1977 - Fellow of American Geophysical Union (AGU)

Overview

S.-I. Akasofu was affiliated with the University of Alaska Fairbanks in the United States. Over the course of their career, they contributed to the field of scientific research until their passing.

The scientist was recognized as a Fellow of the American Association for the Advancement of Science (AAAS) in 2001. They also received the distinction of Fellow of the American Geophysical Union (AGU) in 1977.

Though specific research topics, publications, coauthors, and venues are not detailed in the available data, their association with these prestigious fellowships indicates involvement in the fields of advancement in science and geophysics.

Best Publications

  • Origin of interplanetary southward magnetic fields responsible for major magnetic storms near solar maximum (1978–1979)

    Bruce T. Tsurutani;Walter D. Gonzalez;Frances Tang;Syun I. Akasofu

  • Magnetospheric substorms-definition and signatures

    G. Rostoker;S.-I. Akasofu;J. Foster;R.A. Greenwald

  • Measurements of magnetotail plasma flow made with Vela 4B

    E. W. Hones;J. R. Asbridge;S. J. Bame;M. D. Montgomery

  • An ISEE 3 study of average and substorm conditions in the distant magnetotail

    J. A. Slavin;E. J. Smith;D. G. Sibeck;D. N. Baker

  • Solar wind-magnetosphere coupling during intense magnetic storms (1978-1979)

    Walter D. Gonzalez;Bruce T. Tsurutani;Alicia L. C. Gonzalez;Edward J. Smith

  • The latitudinal morphology of 10‐eV to 10‐keV electron fluxes during magnetically quiet and disturbed times in the 2100–0300 MLT sector

    Unknown

  • Magnetotail and boundary layer plasmas at a geocentric distance of ∼18 RE : Vela 5 and 6 observations

    S.-I. Akasofu;E. W. Hones;S. J. Bame;J. R. Asbridge

  • Interplanetary energy flux associated with magnetospheric substorms

    S.-I. Akasofu

  • Improvements to the HAF solar wind model for space weather predictions

    C. D. Fry;W. Sun;C. S. Deehr;M. Dryer

  • A study of auroral displays photographed from the DMSP-2 satellite and from the Alaska meridian chain of stations

    S. I. Akasofu

  • The Joule heat production rate and the particle energy injection rate as a function of the geomagnetic indices AE and AL

    B.-H. Ahn;S.-I. Akasofu;Y. Kamide

  • Scaling relations governing magnetospheric energy transfer

    Unknown

  • Auroral substorms and the interplanetary magnetic field

    S.-I. Akasofu;P. D. Perreault;F. Yasuhara;C.-I. Meng

  • Atmospheric CO2 balance: The role of Arctic sea ice

    Igor Semiletov;Igor Semiletov;Alexander Makshtas;Syun-Ichi Akasofu;Edgar L Andreas

  • On the asymmetric development of magnetic storm fields in low and middle latitudes

    S.-I Akasofu;S. Chapman

  • Simultaneous observations of particle precipitations and auroral emissions by the Isis 2 satellite in the 19–24 MLT sector

    A. T. Y. Lui;D. Venkatesan;C. D. Anger;S. I. Akasofu

  • The polar electrojet.

    Unknown

  • Simulation of three-dimensional solar wind disturbances and resulting geomagnetic storms

    K. Hakamada;S. I. Akasofu

  • The nonlinear response of AE to the IMF BS driver: A spectral break at 5 hours

    Bruce T. Tsurutani;Masahisa Sugiura;Toshihiko Iyemori;Bruce E. Goldstein

  • The solar wind-magnetosphere energy coupling and magnetospheric disturbances

    S.-I. Akasofu

  • The roles of direct input of energy from the solar wind and unloading of stored magnetotail energy in driving magnetospheric substorms

    G. Rostoker;S. I. Akasofu;W. Baumjohann;Y. Kamide;Y. Kamide

  • Propagation mechanism of daytime Pc 3-4 pulsations observed at synchronous orbit and multiple ground-based stations

    Kiyohumi Yumoto;Takao Saito;Syun-Ichi Akasofu;Bruce T. Tsurutani

  • Forecasting solar wind structures and shock arrival times using an ensemble of models

    C. D. Fry;M. Dryer;M. Dryer;Z. Smith;W. Sun

Frequent Co-Authors

Yohsuke Kamide
Yohsuke Kamide Nagoya University
L. A. Frank
L. A. Frank University of Iowa
Toshiki Tajima
Toshiki Tajima University of California, Irvine
Gordon Rostoker
Gordon Rostoker University of Alberta
Bruce T. Tsurutani
Bruce T. Tsurutani California Institute of Technology
Walter D. Gonzalez
Walter D. Gonzalez National Institute for Space Research
Arthur D. Richmond
Arthur D. Richmond National Center for Atmospheric Research
Edward J. Smith
Edward J. Smith California Institute of Technology
C.-I. Meng
C.-I. Meng Johns Hopkins University Applied Physics Laboratory
Wolfgang Baumjohann
Wolfgang Baumjohann Austrian Academy of Sciences

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