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Shizuo Tsunogai

Shizuo Tsunogai

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Earth Science 49 3613 3307 78 69 147 8719

Shizuo Tsunogai publications per year

The chart shows the history of publications by Shizuo Tsunogai between 1963 and 2024, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Shizuo Tsunogai published across 62 years, from 1963 to 2024, averaging 2.5 papers a year. Output peaked at 10 publications in 1986. 1 of the 153 publications appeared in the last two years.

No. of publications
2 4 6 8 10
Bar chart. Horizontal axis: year, 1963 to 2024. Vertical axis: number of publications, 0 to 10. Peak 10 publications in 1986. 1963: 2 publications 1964: 0 publications 1965: 0 publications 1966: 0 publications 1967: 1 publication 1968: 3 publications 1969: 1 publication 1970: 0 publications 1971: 7 publications 1972: 2 publications 1973: 5 publications 1974: 2 publications 1975: 2 publications 1976: 1 publication 1977: 0 publications 1978: 3 publications 1979: 3 publications 1980: 4 publications 1981: 1 publication 1982: 3 publications 1983: 5 publications 1984: 3 publications 1985: 6 publications 1986: 10 publications 1987: 2 publications 1988: 5 publications 1989: 4 publications 1990: 5 publications 1991: 4 publications 1992: 3 publications 1993: 3 publications 1994: 4 publications 1995: 5 publications 1996: 7 publications 1997: 4 publications 1998: 4 publications 1999: 3 publications 2000: 4 publications 2001: 5 publications 2002: 7 publications 2003: 7 publications 2004: 3 publications 2005: 5 publications 2006: 1 publication 2007: 1 publication 2008: 0 publications 2009: 0 publications 2010: 0 publications 2011: 0 publications 2012: 0 publications 2013: 0 publications 2014: 0 publications 2015: 0 publications 2016: 0 publications 2017: 0 publications 2018: 0 publications 2019: 1 publication 2020: 0 publications 2021: 1 publication 2022: 0 publications 2023: 0 publications 2024: 1 publication
1963 2024

153 publications in total across all disciplines

View publications per year as a table
Shizuo Tsunogai: publications per year, 1963 to 2024
Year Publications
1963 2
1964 0
1965 0
1966 0
1967 1
1968 3
1969 1
1970 0
1971 7
1972 2
1973 5
1974 2
1975 2
1976 1
1977 0
1978 3
1979 3
1980 4
1981 1
1982 3
1983 5
1984 3
1985 6
1986 10
1987 2
1988 5
1989 4
1990 5
1991 4
1992 3
1993 3
1994 4
1995 5
1996 7
1997 4
1998 4
1999 3
2000 4
2001 5
2002 7
2003 7
2004 3
2005 5
2006 1
2007 1
2008 0
2009 0
2010 0
2011 0
2012 0
2013 0
2014 0
2015 0
2016 0
2017 0
2018 0
2019 1
2020 0
2021 1
2022 0
2023 0
2024 1
Total 153
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Shizuo Tsunogai 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 Shizuo Tsunogai 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, 138–147 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: 147 publications — 37th percentile

37% 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
138–147 491 147
148–157 495
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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Shizuo Tsunogai 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 Shizuo Tsunogai 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

Shizuo Tsunogai is affiliated with Hokkaido University in Japan, where their research focuses on atmospheric and environmental sciences with a particular emphasis on gas dynamics in natural environments.

Their recent publications demonstrate an active engagement with studies on greenhouse gases and their interactions in cold and temperate soil environments. Notable papers include:

  • Winter CH4 oxidation in cold-temperate grassland soils of northern Japan: 222Rn as a proxy for the validation of CH4 diffusivity (2021, Polar Science)
  • Interrelationships of CO2, CH4, and N2O fluxes in snow-covered temperate soils, Northern Japan (2024, Polar Science)

The recurring research themes are reflected in the main fields of study, which include Earth and Planetary Sciences and Environmental Science. Subfields prominently represented in their work comprise Atmospheric Science, Global and Planetary Change, and Civil and Structural Engineering.

The primary topics addressed by Tsunogai concentrate on the dynamics of atmospheric and environmental gases, climate change impacts on permafrost regions, cryospheric studies, and soil and unsaturated flow processes. These topics highlight a multidisciplinary approach integrating environmental physics and geosciences.

Collaborations with frequent co-authors such as Yongwon Kim and Noriyuki Тanaka indicate a consistent research network contributing to studies on atmospheric processes and biogeochemical cycles. Both co-authors have partnered with Tsunogai on multiple projects, underscoring ongoing teamwork in the field.

Polar Science is a significant venue for Tsunogai's published work, hosting multiple papers that explore seasonal gas flux dynamics in northern Japan's soil environments.

Best Publications

  • The atmospheric input of trace species to the world ocean

    R. A. Duce;P. S. Liss;J. T. Merrill;E. L. Atlas

  • Is there a “continental shelf pump” for the absorption of atmospheric CO2?

    Shizuo Tsunogai;Shuichi Watanabe;Tetsuro Sato

  • Evaporation of iodine from the ocean

    Yasuo Miyake;Shizuo Tsunogai

  • Formation of iodide-iodine in the ocean

    S. Tsunogai;T. Sase

  • Increase in Total Carbonate in the Western North Pacific Water and a Hypothesis on the Missing Sink of Anthropogenic Carbon

    Shizuo Tsunogai;Tsuneo Ono;Shuichi Watanabe

  • 226Ra, 210Pb and 210Po disequilibria in the Western North Pacific

    Yoshiyuki Nozaki;Shizuo Tsunogai

  • Iodine in the surface water of the ocean

    Shizuo Tsunogai;Takashi Henmi

  • Particulate fluxes and major components of settling particles from sediment trap experiments in the Pacific Ocean

    Shinichiro Noriki;Shizuo Tsunogai

  • Particulate fluxes of carbonate and organic carbon in the ocean. Is the marine biological activity working as a sink of the atmospheric carbon

    Shizuo Tsunogai;Shinichiro Noriki

  • Tritium in the Japan Sea and the renewal time of the Japan Sea deep water

    Y.W Watanabe;S Watanabe;S Tsunogai

  • Iodine in the deep water of the ocean

    Shizuo Tsunogai

  • Seasonal and areal variation of continental aerosol in the surface air over the western North Pacific region

    Shizuo Tsunogai;Toshitaka Suzuki;Takayoshi Kurata;Mitsuo Uematsu

  • Biological effect on removal of Th-234, Po-210 and Pb-210 from surface water in Funka Bay, Japan

    Noriyuki Tanaka;Yoichiro Takeda;Shizuo Tsunogai

  • Complexometric titration of calcium in the presence of larger amounts of magnesium.

    S. Tsunogai;M. Nishimura;S. Nakaya

  • A Preliminary Study of Carbon System in the East China Sea

    Shizuo Tsunogai;Shuichi Watanabe;Junya Nakamura;Tsuneo Ono

  • Hydrographic features of the deep water of the Bering Sea—the sea of Silica

    Shizuo Tsunogai;Masashi Kusakabe;Hitoshi Iizumi;Isao Koike

  • Ammonia in the oceanic atmosphere and the cycle of nitrogen compounds through the atmosphere and the hydrosphere

    Shizuo Tsunogai

  • Compositional change of settling particles with water depth in the Japan Sea

    Toshiyuki Masuzawa;Shin'Ichiro Noriki;Taro Kurosaki;Shizuo Tsunogai

  • Lead-210 in the North Pacific and the transport of terrestrial material through the atmosphere

    Yoshiyuki Nozaki;Shizuo Tsunogai

  • Dynamics of the Japan Sea Deep Water Studied with Chemical and Radiochemical Tracers

    Shizuo Tsunogai;Yutaka W. Watanabe;Koh Harada;Shuichi Watanabe

Frequent Co-Authors

Gui-Peng Yang
Gui-Peng Yang Ocean University of China
Mitsuo Uematsu
Mitsuo Uematsu University of Tokyo
Masaaki Wakatsuchi
Masaaki Wakatsuchi Hokkaido University
Peter G. Brewer
Peter G. Brewer Monterey Bay Aquarium Research Institute
Teh-Lung Ku
Teh-Lung Ku University of Southern California
Takeshi Nakatsuka
Takeshi Nakatsuka Nagoya University
Ken Furuya
Ken Furuya Soka University
Isao Koike
Isao Koike University of Tokyo
Robert A. Duce
Robert A. Duce Texas A&M University
Toshi Nagata
Toshi Nagata University of Tokyo

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