| Discipline name | D-Index | World Ranking | Current World Ranking | National Ranking | Current National Ranking | Publications | Citations |
|---|---|---|---|---|---|---|---|
| Earth Science | 50 | 3393 | 3108 | 73 | 65 | 197 | 9632 |
The chart shows the history of publications by Tsugunobu Nagai between 1979 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Tsugunobu Nagai published across 47 years, from 1979 to 2025, averaging 5 papers a year. Output peaked at 14 publications in 2003. 12 of the 237 publications appeared in the last two years.
237 publications in total across all disciplines
| Year | Publications |
|---|---|
| 1979 | 2 |
| 1980 | 1 |
| 1981 | 0 |
| 1982 | 2 |
| 1983 | 2 |
| 1984 | 1 |
| 1985 | 2 |
| 1986 | 0 |
| 1987 | 3 |
| 1988 | 2 |
| 1989 | 1 |
| 1990 | 1 |
| 1991 | 3 |
| 1992 | 2 |
| 1993 | 1 |
| 1994 | 2 |
| 1995 | 4 |
| 1996 | 4 |
| 1997 | 5 |
| 1998 | 10 |
| 1999 | 6 |
| 2000 | 6 |
| 2001 | 7 |
| 2002 | 10 |
| 2003 | 14 |
| 2004 | 5 |
| 2005 | 11 |
| 2006 | 7 |
| 2007 | 2 |
| 2008 | 4 |
| 2009 | 6 |
| 2010 | 6 |
| 2011 | 5 |
| 2012 | 5 |
| 2013 | 14 |
| 2014 | 9 |
| 2015 | 11 |
| 2016 | 12 |
| 2017 | 13 |
| 2018 | 6 |
| 2019 | 4 |
| 2020 | 1 |
| 2021 | 7 |
| 2022 | 4 |
| 2023 | 2 |
| 2024 | 5 |
| 2025 | 7 |
| Total | 237 |
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 Tsugunobu Nagai sits on this spectrum.
This scientist: 197 publications — 62nd percentile
62% of scientists in this discipline score the same or lower.
The last bar groups every scientist with 603 publications or more.
| Publications | Scientists | This scientist |
|---|---|---|
| 38–47 | 5 | |
| 48–57 | 33 | |
| 58–67 | 94 | |
| 68–77 | 161 | |
| 78–87 | 278 | |
| 88–97 | 376 | |
| 98–107 | 404 | |
| 108–117 | 484 | |
| 118–127 | 540 | |
| 128–137 | 557 | |
| 138–147 | 491 | |
| 148–157 | 495 | |
| 158–167 | 458 | |
| 168–177 | 490 | |
| 178–187 | 414 | |
| 188–197 | 401 | 197 |
| 198–207 | 333 | |
| 208–217 | 292 | |
| 218–227 | 290 | |
| 228–237 | 262 | |
| 238–247 | 243 | |
| 248–257 | 208 | |
| 258–267 | 185 | |
| 268–277 | 147 | |
| 278–287 | 128 | |
| 288–297 | 119 | |
| 298–307 | 120 | |
| 308–317 | 107 | |
| 318–327 | 93 | |
| 328–337 | 87 | |
| 338–347 | 64 | |
| 348–357 | 87 | |
| 358–367 | 60 | |
| 368–377 | 60 | |
| 378–387 | 34 | |
| 388–397 | 50 | |
| 398–407 | 44 | |
| 408–417 | 31 | |
| 418–427 | 39 | |
| 428–437 | 27 | |
| 438–447 | 36 | |
| 448–457 | 27 | |
| 458–467 | 29 | |
| 468–477 | 30 | |
| 478–487 | 19 | |
| 488–497 | 15 | |
| 498–507 | 18 | |
| 508–517 | 19 | |
| 518–527 | 16 | |
| 528–537 | 10 | |
| 538–547 | 11 | |
| 548–557 | 14 | |
| 558–567 | 11 | |
| 568–577 | 7 | |
| 578–587 | 14 | |
| 588–597 | 5 | |
| 598–602 | 4 | |
| 603+ | 100 |
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 Tsugunobu Nagai sits on this spectrum.
This scientist: 50 D-Index — 64th percentile
64% of scientists in this discipline score the same or lower.
The last bar groups every scientist with 106 D-Index or more.
| D-Index | Scientists | This scientist |
|---|---|---|
| 30 | 144 | |
| 31 | 215 | |
| 32 | 278 | |
| 33 | 379 | |
| 34 | 366 | |
| 35 | 372 | |
| 36 | 389 | |
| 37 | 366 | |
| 38 | 344 | |
| 39 | 349 | |
| 40 | 296 | |
| 41 | 289 | |
| 42 | 277 | |
| 43 | 279 | |
| 44 | 248 | |
| 45 | 257 | |
| 46 | 212 | |
| 47 | 202 | |
| 48 | 207 | |
| 49 | 204 | |
| 50 | 183 | 50 |
| 51 | 178 | |
| 52 | 182 | |
| 53 | 178 | |
| 54 | 163 | |
| 55 | 117 | |
| 56 | 163 | |
| 57 | 120 | |
| 58 | 113 | |
| 59 | 136 | |
| 60 | 135 | |
| 61 | 96 | |
| 62 | 103 | |
| 63 | 83 | |
| 64 | 103 | |
| 65 | 83 | |
| 66 | 89 | |
| 67 | 92 | |
| 68 | 89 | |
| 69 | 78 | |
| 70 | 75 | |
| 71 | 53 | |
| 72 | 62 | |
| 73 | 54 | |
| 74 | 35 | |
| 75 | 52 | |
| 76 | 50 | |
| 77 | 32 | |
| 78 | 37 | |
| 79 | 20 | |
| 80 | 33 | |
| 81 | 36 | |
| 82 | 34 | |
| 83 | 34 | |
| 84 | 24 | |
| 85 | 19 | |
| 86 | 18 | |
| 87 | 26 | |
| 88 | 30 | |
| 89 | 17 | |
| 90 | 21 | |
| 91 | 19 | |
| 92 | 15 | |
| 93 | 14 | |
| 94 | 20 | |
| 95 | 9 | |
| 96 | 10 | |
| 97 | 15 | |
| 98 | 13 | |
| 99 | 3 | |
| 100 | 13 | |
| 101 | 3 | |
| 102 | 9 | |
| 103 | 4 | |
| 104 | 6 | |
| 105 | 6 | |
| 106+ | 98 |
Tsugunobu Nagai is affiliated with the Tokyo Institute of Technology in Japan and has contributed extensively to the field of Physics and Astronomy with a focus on subfields such as Astronomy and Astrophysics, Instrumentation, Molecular Biology, Atomic and Molecular Physics, and Optics, as well as Geophysics.
Their research often addresses topics including Ionosphere and magnetosphere dynamics, Solar and Space Plasma Dynamics, Astronomy and Astrophysical Research, Stellar, planetary, and galactic studies, Astro and Planetary Science, Geomagnetism and Paleomagnetism Studies, and Adaptive optics and wavefront sensing.
Notable recent papers by Tsugunobu Nagai include:
Frequent coauthors associated with their publications include:
Primary venues for Tsugunobu Nagai's work consist of:
Tsugunobu Nagai was recognized as a Fellow of the American Geophysical Union (AGU) in 2008.
T. Nagai;M. Fujimoto;Y. Saito;S. Machida
Tsugunobu Nagai
T. Nagai;I. Shinohara;M. Fujimoto;M. Hoshino
J. A. Slavin;R. P. Lepping;J. Gjerloev;D. H. Fairfield
L. R. Lyons;T. Nagai;G. T. Blanchard;J. C. Samson
Yoshizumi Miyoshi;Akira Morioka;Hiroaki Misawa;Takahiro Obara
W. Baumjohann;M. Hesse;S. Kokubun;T. Mukai
Tsugunobu Nagai
D. H. Fairfield;T. Mukai;M. Brittnacher;G. D. Reeves
J. H. Waite;T. Nagai;J. F. E. Johnson;C. R. Chappell
Y. Asano;T. Mukai;M. Hoshino;Y. Saito
T. Nagai;M. Fujimoto;R. Nakamura;W. Baumjohann
V. A. Sergeev;D. A. Sormakov;S. V. Apatenkov;W. Baumjohann
W. Baumjohann;G. Paschmann;T. Nagai;H. Lühr
I. Shinohara;T. Nagai;M. Fujimoto;T. Terasawa
Yoshifumi Saito;Shoichiro Yokota;Kazushi Asamura;Takaaki Tanaka
Y. Miyoshi;R. Kataoka;Y. Kasahara;A. Kumamoto
M.-C. Fok;N. Y. Buzulukova;N. Y. Buzulukova;S.-H. Chen;S.-H. Chen;A. Glocer
D. H. Fairfield;T. Mukai;A. T. Y. Lui;C. A. Cattell
T. Nagai;I. Shinohara;M. Fujimoto;S. Machida
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