World's Best Scientists 2026 revealed!
Joji Ishizaka

Joji Ishizaka

D-Index & Metrics

Earth Science

D-Index
41
Citations
6926
World Ranking
5484
National Ranking
141

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.

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 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.

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.

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.

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

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