World's Best Scientists 2026 revealed!
Takeshi Nakatsuka

Takeshi Nakatsuka

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Earth Science 49 3550 3249 76 68 203 10499

Takeshi Nakatsuka publications per year

The chart shows the history of publications by Takeshi Nakatsuka between 1992 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Takeshi Nakatsuka published across 34 years, from 1992 to 2025, averaging 6.8 papers a year. Output peaked at 16 publications in 2014. 7 of the 230 publications appeared in the last two years.

No. of publications
5 10 15
Bar chart. Horizontal axis: year, 1992 to 2025. Vertical axis: number of publications, 0 to 16. Peak 16 publications in 2014. 1992: 2 publications 1993: 2 publications 1994: 2 publications 1995: 3 publications 1996: 2 publications 1997: 2 publications 1998: 3 publications 1999: 1 publication 2000: 3 publications 2001: 1 publication 2002: 4 publications 2003: 9 publications 2004: 12 publications 2005: 7 publications 2006: 7 publications 2007: 2 publications 2008: 5 publications 2009: 4 publications 2010: 9 publications 2011: 8 publications 2012: 9 publications 2013: 14 publications 2014: 16 publications 2015: 15 publications 2016: 16 publications 2017: 15 publications 2018: 13 publications 2019: 13 publications 2020: 15 publications 2021: 4 publications 2022: 2 publications 2023: 3 publications 2024: 3 publications 2025: 4 publications
1992 2025

230 publications in total across all disciplines

View publications per year as a table
Takeshi Nakatsuka: publications per year, 1992 to 2025
Year Publications
1992 2
1993 2
1994 2
1995 3
1996 2
1997 2
1998 3
1999 1
2000 3
2001 1
2002 4
2003 9
2004 12
2005 7
2006 7
2007 2
2008 5
2009 4
2010 9
2011 8
2012 9
2013 14
2014 16
2015 15
2016 16
2017 15
2018 13
2019 13
2020 15
2021 4
2022 2
2023 3
2024 3
2025 4
Total 230
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Takeshi Nakatsuka 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 Takeshi Nakatsuka sits on this spectrum.

No. of scientists
100 200 300 400 500
Bar chart with 58 bars. Horizontal axis: publications, 38–47 to 603+. Vertical axis: number of scientists, 0 to 557. Most scientists, 557, have 128–137 publications. The last bar groups every scientist with 603 publications or more. The highlighted bar, 198–207 publications, is where this scientist sits. 38–47 publications: 5 scientists 48–57 publications: 33 scientists 58–67 publications: 94 scientists 68–77 publications: 161 scientists 78–87 publications: 278 scientists 88–97 publications: 376 scientists 98–107 publications: 404 scientists 108–117 publications: 484 scientists 118–127 publications: 540 scientists 128–137 publications: 557 scientists 138–147 publications: 491 scientists 148–157 publications: 495 scientists 158–167 publications: 458 scientists 168–177 publications: 490 scientists 178–187 publications: 414 scientists 188–197 publications: 401 scientists 198–207 publications: 333 scientists 208–217 publications: 292 scientists 218–227 publications: 290 scientists 228–237 publications: 262 scientists 238–247 publications: 243 scientists 248–257 publications: 208 scientists 258–267 publications: 185 scientists 268–277 publications: 147 scientists 278–287 publications: 128 scientists 288–297 publications: 119 scientists 298–307 publications: 120 scientists 308–317 publications: 107 scientists 318–327 publications: 93 scientists 328–337 publications: 87 scientists 338–347 publications: 64 scientists 348–357 publications: 87 scientists 358–367 publications: 60 scientists 368–377 publications: 60 scientists 378–387 publications: 34 scientists 388–397 publications: 50 scientists 398–407 publications: 44 scientists 408–417 publications: 31 scientists 418–427 publications: 39 scientists 428–437 publications: 27 scientists 438–447 publications: 36 scientists 448–457 publications: 27 scientists 458–467 publications: 29 scientists 468–477 publications: 30 scientists 478–487 publications: 19 scientists 488–497 publications: 15 scientists 498–507 publications: 18 scientists 508–517 publications: 19 scientists 518–527 publications: 16 scientists 528–537 publications: 10 scientists 538–547 publications: 11 scientists 548–557 publications: 14 scientists 558–567 publications: 11 scientists 568–577 publications: 7 scientists 578–587 publications: 14 scientists 588–597 publications: 5 scientists 598–602 publications: 4 scientists 603+ publications: 100 scientists
38–47 publications 603+

This scientist: 203 publications — 64th percentile

64% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 603 publications or more.

View publications distribution as a table
Number of Earth Science scientists by publication count, Research.com 2026 ranking edition. Based on 9,176 ranked scientists.
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
198–207 333 203
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
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Takeshi Nakatsuka 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 Takeshi Nakatsuka sits on this spectrum.

No. of scientists
100 200 300
Bar chart with 77 bars. Horizontal axis: D-Index, 30 to 106+. Vertical axis: number of scientists, 0 to 389. Most scientists, 389, have 36 D-Index. The last bar groups every scientist with 106 D-Index or more. The highlighted bar, 49 D-Index, is where this scientist sits. 30 D-Index: 144 scientists 31 D-Index: 215 scientists 32 D-Index: 278 scientists 33 D-Index: 379 scientists 34 D-Index: 366 scientists 35 D-Index: 372 scientists 36 D-Index: 389 scientists 37 D-Index: 366 scientists 38 D-Index: 344 scientists 39 D-Index: 349 scientists 40 D-Index: 296 scientists 41 D-Index: 289 scientists 42 D-Index: 277 scientists 43 D-Index: 279 scientists 44 D-Index: 248 scientists 45 D-Index: 257 scientists 46 D-Index: 212 scientists 47 D-Index: 202 scientists 48 D-Index: 207 scientists 49 D-Index: 204 scientists 50 D-Index: 183 scientists 51 D-Index: 178 scientists 52 D-Index: 182 scientists 53 D-Index: 178 scientists 54 D-Index: 163 scientists 55 D-Index: 117 scientists 56 D-Index: 163 scientists 57 D-Index: 120 scientists 58 D-Index: 113 scientists 59 D-Index: 136 scientists 60 D-Index: 135 scientists 61 D-Index: 96 scientists 62 D-Index: 103 scientists 63 D-Index: 83 scientists 64 D-Index: 103 scientists 65 D-Index: 83 scientists 66 D-Index: 89 scientists 67 D-Index: 92 scientists 68 D-Index: 89 scientists 69 D-Index: 78 scientists 70 D-Index: 75 scientists 71 D-Index: 53 scientists 72 D-Index: 62 scientists 73 D-Index: 54 scientists 74 D-Index: 35 scientists 75 D-Index: 52 scientists 76 D-Index: 50 scientists 77 D-Index: 32 scientists 78 D-Index: 37 scientists 79 D-Index: 20 scientists 80 D-Index: 33 scientists 81 D-Index: 36 scientists 82 D-Index: 34 scientists 83 D-Index: 34 scientists 84 D-Index: 24 scientists 85 D-Index: 19 scientists 86 D-Index: 18 scientists 87 D-Index: 26 scientists 88 D-Index: 30 scientists 89 D-Index: 17 scientists 90 D-Index: 21 scientists 91 D-Index: 19 scientists 92 D-Index: 15 scientists 93 D-Index: 14 scientists 94 D-Index: 20 scientists 95 D-Index: 9 scientists 96 D-Index: 10 scientists 97 D-Index: 15 scientists 98 D-Index: 13 scientists 99 D-Index: 3 scientists 100 D-Index: 13 scientists 101 D-Index: 3 scientists 102 D-Index: 9 scientists 103 D-Index: 4 scientists 104 D-Index: 6 scientists 105 D-Index: 6 scientists 106+ D-Index: 98 scientists
30 D-Index 106+

This scientist: 49 D-Index — 62nd percentile

62% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 106 D-Index or more.

View D-Index distribution as a table
Number of Earth Science scientists by D-index, Research.com 2026 ranking edition. Based on 9,176 ranked scientists.
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 49
50 183
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
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Overview

Takeshi Nakatsuka is affiliated with Nagoya University in Japan and specializes in Earth and Planetary Sciences and Environmental Science. Their research primarily focuses on Atmospheric Science, Global and Planetary Change, Paleontology, Environmental Chemistry, and Geography, Planning and Development.

The scientist's work engages deeply with several main topics, including:

  • Tree-ring climate responses
  • Plant Water Relations and Carbon Dynamics
  • Geology and Paleoclimatology Research
  • Climate variability and models
  • Archaeology and ancient environmental studies
  • Arctic and Antarctic ice dynamics
  • Methane Hydrates and Related Phenomena

Nakatsuka has contributed extensively to the field through publications in recognized venues. Frequent publication venues include:

  • Radiocarbon
  • Quaternary Science Reviews
  • SSRN Electronic Journal
  • Climate of the past
  • npj Climate and Atmospheric Science

Some recent significant papers authored or co-authored by Nakatsuka are:

  • A 2600-year summer climate reconstruction in central Japan by integrating tree-ring stable oxygen and hydrogen isotopes (2020) published in Climate of the past
  • Asian-Australian summer monsoons linkage to ENSO strengthened by global warming (2023) published in npj Climate and Atmospheric Science
  • Tree-ring oxygen isotope across monsoon Asia: Common signal and local influence (2021) published in Quaternary Science Reviews
  • The modulation of Pacific Decadal Oscillation on ENSO-East Asian summer monsoon relationship over the past half-millennium (2022) published in The Science of The Total Environment
  • An assessment of diatom assemblages in the Sea of Okhotsk as a proxy for sea-ice cover (2020) published in Journal of Micropalaeontology

Nakatsuka frequently collaborates with several researchers, including:

  • Masaki Sano
  • Chenxi Xu
  • Minoru Sakamoto
  • Masataka Hakozaki
  • Shih-Yu Wang

Best Publications

  • Processes and patterns of oceanic nutrient limitation

    C. M. Moore;M. M. Mills;K. R. Arrigo;I. Berman-Frank

  • Continental-scale temperature variability during the past two millennia

    Moinuddin Ahmed;Kevin J. Anchukaitis;Kevin J. Anchukaitis;Asfawossen Asrat;Hemant P. Borgaonkar

  • A global multiproxy database for temperature reconstructions of the Common Era

    Julien Emile-Geay;Nicholas P. McKay;Darrell S. Kaufman;Lucien Von Gunten

  • Tree-ring reconstructed summer temperature anomalies for temperate East Asia since 800 C.E

    Edward R. Cook;Paul J. Krusic;Kevin J. Anchukaitis;Brendan M. Buckley

  • Iron supply to the western subarctic Pacific: Importance of iron export from the Sea of Okhotsk

    Jun Nishioka;Jun Nishioka;Tsuneo Ono;Hiroaki Saito;Takeshi Nakatsuka

  • Recent enhancement of central Pacific El Niño variability relative to last eight centuries.

    Yu Liu;Kim M. Cobb;Huiming Song;Qiang Li

  • The dynamic changes of stable isotopic ratios of carbon and nitrogen in suspended and sedimented particulate organic matter during a phytoplankton bloom

    Takeshi Nakatsuka;Nobuhiko Handa;Eitaro Wada;Chi Shing Wong

  • Reconstruction of paleoproductivity in the Sea of Okhotsk over the last 30 kyr

    O. Seki;M. Ikehara;M. Ikehara;K. Kawamura;T. Nakatsuka

  • Seasonal phytodetritus deposition and responses of bathyal benthic foraminiferal populations in Sagami Bay, Japan: preliminary results from “Project Sagami 1996–1999”

    H. Kitazato;Y. Shirayama;T. Nakatsuka;S. Fujiwara

  • Species-specific ingestion of organic carbon by deep-sea benthic foraminifera and meiobenthos: In situ tracer experiments

    Hidetaka Nomaki;Petra Heinz;Takeshi Nakatsuka;Motohiro Shimanaga

  • Different ingestion patterns of 13C-labeled bacteria and algae by deep-sea benthic foraminifera

    Hidetaka Nomaki;Petra Heinz;Takeshi Nakatsuka;Motohiro Shimanaga

  • Origin and decomposition of sinking particulate organic matter in the deep water column inferred from the vertical distributions of its δ15N, δ13 and δ14

    Takeshi Nakatsuka;Takeshi Nakatsuka;Nobuhiko Handa;Nobuhiko Handa;Naomi Harada;Tatsuhiro Sugimoto;Tatsuhiro Sugimoto

  • Ice-rafted debris (IRD)-based sea-ice expansion events during the past 100 kyrs in the Okhotsk Sea

    Tatsuhiko Sakamoto;M. Ikehara;K. Aoki;K. Iijima

  • Tree ring cellulose δ18O of Fokienia hodginsii in northern Laos: A promising proxy to reconstruct ENSO?

    Chenxi Xu;Masaki Sano;Takeshi Nakatsuka

  • A biomarker approach for assessing marine and terrigenous inputs to the sediments of Sea of Okhotsk for the last 27,000 years

    Y Ternois;K Kawamura;L Keigwin;N Ohkouchi

  • May–September precipitation in the Bhutan Himalaya since 1743 as reconstructed from tree ring cellulose δ18O

    Masaki Sano;Phuntsho Tshering;Jiro Komori;Koji Fujita

  • An optimized method for stable isotope analysis of tree rings by extracting cellulose directly from cross-sectional laths

    Akira Kagawa;Masaki Sano;Takeshi Nakatsuka;Tsutomu Ikeda

  • A 300-year Vietnam hydroclimate and ENSO variability record reconstructed from tree ringδ18O

    Masaki Sano;Chenxi Xu;Takeshi Nakatsuka

  • Dissolved and particulate organic carbon in the Sea of Okhotsk: Transport from continental shelf to ocean interior

    Takeshi Nakatsuka;Mari Toda;Kimitaka Kawamura;Masaaki Wakatsuchi

  • Benthic foraminifera as trophic links between phytodetritus and benthic metazoans: carbon and nitrogen isotopic evidence

    Hidetaka Nomaki;Nanako O. Ogawa;Naohiko Ohkouchi;Hisami Suga

  • Glacial to interglacial surface nutrient variations of Bering Deep Basins recorded by δ13C and δ15N of sedimentary organic matter

    Takeshi Nakatsuka;Kazuki Watanabe;Nobuhiko Handa;Eiji Matsumoto

Frequent Co-Authors

Kimitaka Kawamura
Kimitaka Kawamura Chubu University
Jun Nishioka
Jun Nishioka Hokkaido University
Minoru Ikehara
Minoru Ikehara Kōchi University
Zhengtang Guo
Zhengtang Guo Chinese Academy of Sciences
Yusuke Yokoyama
Yusuke Yokoyama University of Tokyo
Masaaki Wakatsuchi
Masaaki Wakatsuchi Hokkaido University
Hiroshi Kitazato
Hiroshi Kitazato Tokyo University of Marine Science and Technology
Takahiro Tagami
Takahiro Tagami Kyoto University
Toshitaka Tsuda
Toshitaka Tsuda Kyoto University
Junji Sugiyama
Junji Sugiyama Kyoto University

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