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Takeshi Nakagawa

Takeshi Nakagawa

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Earth Science 44 4747 4371 123 114 156 6821

Takeshi Nakagawa publications per year

The chart shows the history of publications by Takeshi Nakagawa between 1972 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Takeshi Nakagawa published across 54 years, from 1972 to 2025, averaging 4.3 papers a year. Output peaked at 21 publications in 2014. 9 of the 232 publications appeared in the last two years.

No. of publications
5 10 15 20
Bar chart. Horizontal axis: year, 1972 to 2025. Vertical axis: number of publications, 0 to 21. Peak 21 publications in 2014. 1972: 2 publications 1973: 0 publications 1974: 0 publications 1975: 0 publications 1976: 0 publications 1977: 0 publications 1978: 0 publications 1979: 0 publications 1980: 0 publications 1981: 0 publications 1982: 0 publications 1983: 0 publications 1984: 0 publications 1985: 0 publications 1986: 1 publication 1987: 0 publications 1988: 0 publications 1989: 0 publications 1990: 0 publications 1991: 0 publications 1992: 0 publications 1993: 0 publications 1994: 0 publications 1995: 0 publications 1996: 1 publication 1997: 0 publications 1998: 1 publication 1999: 1 publication 2000: 6 publications 2001: 2 publications 2002: 5 publications 2003: 6 publications 2004: 9 publications 2005: 7 publications 2006: 8 publications 2007: 6 publications 2008: 10 publications 2009: 8 publications 2010: 10 publications 2011: 8 publications 2012: 16 publications 2013: 14 publications 2014: 21 publications 2015: 14 publications 2016: 17 publications 2017: 13 publications 2018: 7 publications 2019: 7 publications 2020: 7 publications 2021: 5 publications 2022: 5 publications 2023: 6 publications 2024: 5 publications 2025: 4 publications
1972 2025

232 publications in total across all disciplines

View publications per year as a table
Takeshi Nakagawa: publications per year, 1972 to 2025
Year Publications
1972 2
1973 0
1974 0
1975 0
1976 0
1977 0
1978 0
1979 0
1980 0
1981 0
1982 0
1983 0
1984 0
1985 0
1986 1
1987 0
1988 0
1989 0
1990 0
1991 0
1992 0
1993 0
1994 0
1995 0
1996 1
1997 0
1998 1
1999 1
2000 6
2001 2
2002 5
2003 6
2004 9
2005 7
2006 8
2007 6
2008 10
2009 8
2010 10
2011 8
2012 16
2013 14
2014 21
2015 14
2016 17
2017 13
2018 7
2019 7
2020 7
2021 5
2022 5
2023 6
2024 5
2025 4
Total 232
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Takeshi Nakagawa 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 Nakagawa 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, 148–157 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: 156 publications — 42nd percentile

42% 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
148–157 495 156
158–167 458
168–177 490
178–187 414
188–197 401
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
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Takeshi Nakagawa 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 Nakagawa 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, 44 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: 44 D-Index — 50th percentile

50% 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 44
45 257
46 212
47 202
48 207
49 204
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 Nakagawa is affiliated with Ritsumeikan University in Japan and is primarily engaged in research within the field of Earth and Planetary Sciences. Their academic output predominantly focuses on geosciences, specifically addressing topics related to geology, paleoclimatology, and isotope analysis in ecological and archaeological contexts.

The scientist's recent publications illustrate a concentration on the analysis of pollen records and radiocarbon dating methods, often applied to reconstruct past environmental and climatic conditions. Notable papers include:

  • The spatio-temporal structure of the Lateglacial to early Holocene transition reconstructed from the pollen record of Lake Suigetsu and its precise correlation with other key global archives: Implications for palaeoclimatology and archaeology, 2021, published in Global and Planetary Change
  • The Eurasian Modern Pollen Database (EMPD), version 2, 2020, published in Earth system science data
  • Reanalysis of the Atmospheric Radiocarbon Calibration Record from Lake Suigetsu, Japan, 2020, published in Radiocarbon
  • Extraction method for fossil pollen grains using a cell sorter suitable for routine 14C dating, 2021, published in Quaternary Science Reviews
  • Constraints on the Timing of Explosive Volcanism at Aso and Aira Calderas (Japan) Between 50 and 30 ka: New Insights From the Lake Suigetsu Sedimentary Record (SG14 Core), 2020, published in Geochemistry Geophysics Geosystems

Their frequent co-authors reflect ongoing collaborations with experts in related disciplines. These co-authors include:

  • Ikuko Kitaba
  • Richard A. Staff
  • Keitaro Yamada
  • Danielle McLean
  • Paul G. Albert

The scientist's work is often published in recognized venues such as Quaternary Science Reviews, which accounts for four of their publications, and Quaternary Geochronology with three publications. Other journals include the Journal of Architecture and Planning (Transactions of AIJ), Earth System Science Data, and Radiocarbon.

Takeshi Nakagawa's research focuses on several subfields within Earth and Planetary Sciences, comprising atmospheric science, geophysics, paleontology, ecology, and anthropology. The main topics addressed in their work are:

  • Geology and Paleoclimatology Research
  • Isotope Analysis in Ecology
  • Archaeology and ancient environmental studies
  • Geological and Geochemical Analysis
  • Earthquake and tectonic studies
  • Pleistocene-Era Hominins and Archaeology
  • Geomagnetism and Paleomagnetism Studies

Best Publications

  • Formal definition and dating of the GSSP (Global Stratotype Section and Point) for the base of the Holocene using the Greenland NGRIP ice core, and selected auxiliary records

    Mike Walker;Sigfus Johnsen;Sune Olander Rasmussen;Trevor Popp;Trevor Popp

  • A complete terrestrial radiocarbon record for 11.2 to 52.8 kyr B.P

    Christopher Bronk Ramsey;Richard A. Staff;Charlotte L. Bryant;Fiona Brock

  • Identification and correlation of visible tephras in the Lake Suigetsu SG06 sedimentary archive, Japan: chronostratigraphic markers for synchronising of east Asian/west Pacific palaeoclimatic records across the last 150 ka

    Victoria C. Smith;Richard A. Staff;Simon P.E. Blockley;Christopher Bronk Ramsey

  • Quantitative pollen-based climate reconstruction in central Japan: application to surface and Late Quaternary spectra

    Takeshi Nakagawa;Pavel E. Tarasov;Pavel E. Tarasov;Kotoba Nishida;Katsuya Gotanda

  • Pollen-Based Quantitative Reconstruction of Holocene Climate Changes in the Daihai Lake Area, Inner Mongolia, China

    Qinghai Xu;Jule Xiao;Yuecong Li;Fang Tian

  • Vegetation and climate dynamics during the Holocene and Eemian interglacials derived from Lake Baikal pollen records

    Pavel Tarasov;Elena Bezrukova;Eugene Karabanov;Eugene Karabanov;Takeshi Nakagawa

  • Dense‐media separation as a more efficient pollen extraction method for use with organic sediment/deposit samples: comparison with the conventional method

    Takeshi Nakagawa;Elisabetta Brugiapaglia;Gunnar Digerfeldt;Maurice Reille

  • The earliest record of major anthropogenic deforestation in the Ghab Valley, northwest Syria : a palynological study

    Yoshinori Yasuda;Hiroyuki Kitagawa;Takeshi Nakagawa

  • Developments in the calibration and modeling of radiocarbon dates

    Christopher Bronk Ramsey;Michael Dee;Sharen Lee;Takeshi Nakagawa;Takeshi Nakagawa

  • East Asian pollen database: modern pollen distribution and its quantitative relationship with vegetation and climate

    Zhuo Zheng;Jinhui Wei;Kangyou Huang;Qinghai Xu

  • Asynchronous climate changes in the North Atlantic and Japan during the last termination.

    Takeshi Nakagawa;Hiroyuki Kitagawa;Yoshinori Yasuda;Pavel E. Tarasov

  • SG06, a fully continuous and varved sediment core from Lake Suigetsu, Japan: stratigraphy and potential for improving the radiocarbon calibration model and understanding of late Quaternary climate changes

    Takeshi Nakagawa;Katsuya Gotanda;Tsuyoshi Haraguchi;Toru Danhara

  • Satellite- and pollen-based quantitative woody cover reconstructions for northern Asia: verification and application to late-Quaternary pollen data

    Pavel Tarasov;John W. Williams;Andrei Andreev;Takeshi Nakagawa

  • Biome classification from Japanese pollen data: application to modern-day and Late Quaternary samples

    Katsuya Gotanda;Katsuya Gotanda;Takeshi Nakagawa;Pavel Tarasov;Pavel Tarasov;Junko Kitagawa

  • Regulation of the monsoon climate by two different orbital rhythms and forcing mechanisms

    Takeshi Nakagawa;Masaaki Okuda;Hitoshi Yonenobu;Norio Miyoshi

  • The Global Stratotype Section and Point (GSSP) for the Base of the Holocene Series/Epoch (Quaternary System/Period) in the NGRIP Ice Core

    Mike Walker;Sigfus Johnsen;Sune Olander Rasmussen;Jørgen-Peder Steffensen

  • Progress in the reconstruction of Quaternary climate dynamics in the Northwest Pacific: A new modern analogue reference dataset and its application to the 430-kyr pollen record from Lake Biwa

    Pavel E. Tarasov;Takeshi Nakagawa;Dieter Demske;Hermann Österle

  • Atlas of pollen, spores and further non-pollen palynomorphs recorded in the glacial-interglacial late Quaternary sediments of Lake Suigetsu, central Japan

    Dieter Demske;Pavel E. Tarasov;Takeshi Nakagawa

  • Salt weathering of sandstone at the Angkor monuments, Cambodia: identification of the origins of salts using sulfur and strontium isotopes

    Takahiro Hosono;Etsuo Uchida;Chiyuki Suda;Akiyo Ueno

  • Pollen/event stratigraphy of the varved sediment of Lake Suigetsu, central Japan from 15,701 to 10,217 SG vyr BP (Suigetsu varve years before present): Description, interpretation, and correlation with other regions

    Takeshi Nakagawa;Takeshi Nakagawa;Takeshi Nakagawa;Hiroyuki Kitagawa;Yoshinori Yasuda;Pavel E. Tarasov

Frequent Co-Authors

Richard A. Staff
Richard A. Staff Scottish Universities Environmental Research Centre
Pavel E. Tarasov
Pavel E. Tarasov Freie Universität Berlin
Ryuji Tada
Ryuji Tada University of Tokyo
Henry F. Lamb
Henry F. Lamb Aberystwyth University
Christopher Bronk Ramsey
Christopher Bronk Ramsey University of Oxford
Yusuke Yokoyama
Yusuke Yokoyama University of Tokyo
Charlotte Bryant
Charlotte Bryant Scottish Universities Environmental Research Centre
Achim Brauer
Achim Brauer University of Potsdam
Victoria C. Smith
Victoria C. Smith University of Oxford
Fiona Brock
Fiona Brock Cranfield University

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