World's Best Scientists 2026 revealed!
Joji Ishizaka

Joji Ishizaka

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Earth Science 41 5484 5070 141 130 184 6926

Joji Ishizaka publications per year

The chart shows the history of publications by Joji Ishizaka between 1983 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Joji Ishizaka published across 43 years, from 1983 to 2025, averaging 5.2 papers a year. Output peaked at 18 publications in 2018. 8 of the 223 publications appeared in the last two years.

No. of publications
5 10 15
Bar chart. Horizontal axis: year, 1983 to 2025. Vertical axis: number of publications, 0 to 18. Peak 18 publications in 2018. 1983: 1 publication 1984: 0 publications 1985: 0 publications 1986: 2 publications 1987: 2 publications 1988: 1 publication 1989: 0 publications 1990: 4 publications 1991: 1 publication 1992: 1 publication 1993: 4 publications 1994: 1 publication 1995: 3 publications 1996: 1 publication 1997: 5 publications 1998: 5 publications 1999: 5 publications 2000: 4 publications 2001: 5 publications 2002: 5 publications 2003: 3 publications 2004: 7 publications 2005: 8 publications 2006: 9 publications 2007: 5 publications 2008: 6 publications 2009: 7 publications 2010: 7 publications 2011: 4 publications 2012: 6 publications 2013: 5 publications 2014: 9 publications 2015: 7 publications 2016: 7 publications 2017: 12 publications 2018: 18 publications 2019: 11 publications 2020: 9 publications 2021: 9 publications 2022: 10 publications 2023: 6 publications 2024: 4 publications 2025: 4 publications
1983 2025

223 publications in total across all disciplines

View publications per year as a table
Joji Ishizaka: publications per year, 1983 to 2025
Year Publications
1983 1
1984 0
1985 0
1986 2
1987 2
1988 1
1989 0
1990 4
1991 1
1992 1
1993 4
1994 1
1995 3
1996 1
1997 5
1998 5
1999 5
2000 4
2001 5
2002 5
2003 3
2004 7
2005 8
2006 9
2007 5
2008 6
2009 7
2010 7
2011 4
2012 6
2013 5
2014 9
2015 7
2016 7
2017 12
2018 18
2019 11
2020 9
2021 9
2022 10
2023 6
2024 4
2025 4
Total 223
Download as CSV

Joji Ishizaka 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 Joji Ishizaka 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, 178–187 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: 184 publications — 56th percentile

56% 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
178–187 414 184
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
Download as CSV

Joji Ishizaka 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 Joji Ishizaka 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, 41 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: 41 D-Index — 41st percentile

41% 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 41
42 277
43 279
44 248
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
Download as CSV

Overview

Joji Ishizaka is affiliated with Nagoya University in Japan. Their research focuses primarily on Earth and Planetary Sciences and Environmental Science, with significant contributions in the subfields of Oceanography, Global and Planetary Change, Ecology, Industrial and Manufacturing Engineering, and Atmospheric Science.

The researcher's work covers key topics such as Marine and Coastal Ecosystems, Oceanographic and Atmospheric Processes, Marine Biology and Ecology Research, Atmospheric and Environmental Gas Dynamics, Water Quality Monitoring and Analysis, Climate Variability and Models, and Coastal and Marine Management.

Joji Ishizaka has published multiple papers in a range of scientific journals. Frequent publication venues include the Journal of Oceanography, Remote Sensing, Remote Sensing of Environment, Frontiers in Marine Science, and Nature Communications.

  • Globally consistent assessment of coastal eutrophication (2021, Nature Communications)
  • OC-SMART: A machine learning based data analysis platform for satellite ocean color sensors (2020, Remote Sensing of Environment)
  • Global estimation of phytoplankton pigment concentrations from satellite data using a deep-learning-based model (2023, Remote Sensing of Environment)
  • Measurement of oxygen concentrations and oxygen consumption rates using an optical oxygen sensor, and its application in hypoxia-related research in highly eutrophic coastal regions (2021, Continental Shelf Research)
  • A Novel Method Based on Backscattering for Discriminating Summer Blooms of the Raphidophyte (Chattonella spp.) and the Diatom (Skeletonema spp.) Using MODIS Images in Ariake Sea, Japan (2020, Remote Sensing)

Throughout their career, Ishizaka has collaborated frequently with several researchers, including Elígio de Ráus Maúre, Hiroto HIGA, Anukul Buranapratheprat, Jutarak Luang-on, and Salem Ibrahim Salem. These collaborations reflect ongoing work in related scientific fields.

Best Publications

  • A comparison of global estimates of marine primary production from ocean color

    Mary-Elena Carr;Marjorie A. M. Friedrichs;Marjorie A. M. Friedrichs;Marjorie Schmeltz;Maki Noguchi Aita

  • Assessing the uncertainties of model estimates of primary productivity in the tropical Pacific Ocean

    Marjorie A. M. Friedrichs;Mary-Elena Carr;Richard T. Barber;Michele Scardi

  • An evaluation of ocean color model estimates of marine primary productivity in coastal and pelagic regions across the globe

    V. S. Saba;V. S. Saba;M. A. M. Friedrichs;D. Antoine;R. A. Armstrong

  • Empirical ocean-color algorithms to retrieve chlorophyll- a , total suspended matter, and colored dissolved organic matter absorption coefficient in the Yellow and East China Seas

    Eko Siswanto;Junwu Tang;Hisashi Yamaguchi;Yu Hwan Ahn

  • Challenges of modeling depth-integrated marine primary productivity over multiple decades: A case study at BATS and HOT

    Vincent S. Saba;Vincent S. Saba;Marjorie A. M. Friedrichs;Mary-Elena Carr;David Antoine

  • Seasonal and interannual variability of sea surface chlorophyll a concentration in the Japan/East Sea (JES)

    Keiko Yamada;Joji Ishizaka;Sinjae Yoo;Hyun-cheol Kim

  • Global verification of critical depth theory for phytoplankton bloom with climatological in situ temperature and satellite ocean color data

    Atsushi Obata;Joji Ishizaka;Masahiro Endoh

  • Community and trophic structures of pelagic copepods down to greater depths in the western subarctic Pacific (WEST-COSMIC)

    Atsushi Yamaguchi;Yuji Watanabe;Hiroshi Ishida;Takashi Harimoto

  • Size-Fractionated Primary Production Estimated by a Two-Phytoplankton Community Model Applicable to Ocean Color Remote Sensing

    Takahiko Kameda;Joji Ishizaka

  • Response of the equatorial Pacific to chlorophyll pigment in a mixed layer isopycnal ocean general circulation model

    S. Nakamoto;S. Prasanna Kumar;J. M. Oberhuber;J. Ishizaka

  • Spatial and Temporal Variability of Satellite Primary Production in the Japan Sea from 1998 to 2002

    Keiko Yamada;Joji Ishizaka;Hiroshi Nagata

  • Seasonal and summer interannual variations of SeaWiFS chlorophyll a in the Yellow Sea and East China Sea

    Hisashi Yamaguchi;Hyun-Cheol Kim;Young Baek Son;Sang Woo Kim

  • Temporal and Spatial Variability of Phytoplankton Pigment Concentrations in the Japan Sea Derived from CZCS Images

    Sang-Woo Kim;Sei-ichi Saitoh;Joji Ishizaka;Yutaka Isoda

  • Distribution of Changjiang Diluted Water detected by satellite chlorophyll-a and its interannual variation during 1998–2007

    Hyun-Cheol Kim;Hyun-Cheol Kim;Hisashi Yamaguchi;Sinjae Yoo;Jianrong Zhu

  • Basin scale estimates of sea surface nitrate and new production from remotely sensed sea surface temperature and chlorophyll

    Joaquim I. Goes;Joaquim I. Goes;Joaquim I. Goes;Toshiro Saino;Hiromi Oaku;Joji Ishizaka

  • OC-SMART: A machine learning based data analysis platform for satellite ocean color sensors

    Yongzhen Fan;Wei Li;Nan Chen;Jae-Hyun Ahn

  • Retrieval of Chlorophyll a, suspended solids, and colored dissolved organic matter in Tokyo Bay using ASTER data

    Motoaki Kishino;Akihiko Tanaka;Joji Ishizaka

  • Seasonal variation of absorption by particles and colored dissolved organic matter (CDOM) in Funka Bay, southwestern Hokkaido, Japan

    Hiroaki Sasaki;Tsuyoshi Miyamura;Sei-ichi Saitoh;Joji Ishizaka

  • Seasonal variability of SeaWiFS chlorophyll a in the Malacca Straits in relation to Asian monsoon

    Chun Knee Tan;Joji Ishizaka;Satsuki Matsumura;Fatimah Md. Yusoff

  • Structure and size distribution of plankton communities down to the greater depths in the western North Pacific Ocean

    Atsushi Yamaguchi;Yuji Watanabe;Hiroshi Ishida;Takashi Harimoto

  • Seasonal and spring interannual variations in satellite-observed chlorophyll-a in the Yellow and East China Seas: New datasets with reduced interference from high concentration of resuspended sediment

    Hisashi Yamaguchi;Joji Ishizaka;Eko Siswanto;Young Baek Son

Frequent Co-Authors

Atsushi Yamaguchi
Atsushi Yamaguchi Tohoku University
Sei-Ichi Saitoh
Sei-Ichi Saitoh Hokkaido University
John Marra
John Marra Brooklyn College
Vincent S. Saba
Vincent S. Saba National Oceanic and Atmospheric Administration
Marjorie A. M. Friedrichs
Marjorie A. M. Friedrichs Virginia Institute of Marine Science
Frédéric Mélin
Frédéric Mélin ENVIRON (United States)
David Antoine
David Antoine Curtin University
Toshiro Saino
Toshiro Saino Japan Agency for Marine-Earth Science and Technology
André Morel
André Morel Sorbonne University
Michael J. Behrenfeld
Michael J. Behrenfeld Oregon State University

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Related Online Degrees & Career Pathways

Exploring Earth Science often leads students to consider complementary online degrees and career pathways that enhance their expertise and employability. For seniors looking to expand their knowledge without a long-term commitment, one year degree programs for seniors offer flexible options to gain valuable skills efficiently.

For those interested in research or academic roles tied to Earth Science, pursuing a master’s in library science might be a strategic choice. Understanding is a masters in library science worth it can help guide decisions about this specialized field, which supports scientific data management and archiving.

When selecting advanced degrees, accreditation is crucial. Looking for ala-accredited schools ensures high educational standards, especially if you’re interested in library and information sciences connected to environmental research.

Additionally, creative digital skills can complement Earth Science careers, particularly in communication and visualization. Programs focusing on an online digital photography degree offer affordable avenues to develop technical expertise that enhances environmental documentation and outreach.

Best Scientists Citing Joji Ishizaka

Trending Scientists

Recently Published Articles