World's Best Scientists 2026 revealed!

D-Index & Metrics

Environmental Sciences

D-Index
50
Citations
13180
World Ranking
4878
National Ranking
83

Masao Ishii publication distribution in Environmental Sciences in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Environmental Sciences in 2026. The highlighted bar marks where Masao Ishii sits on this spectrum.

41–50 publications: 21 scientists 51–60 publications: 62 scientists 61–70 publications: 133 scientists 71–80 publications: 257 scientists 81–90 publications: 361 scientists 91–100 publications: 440 scientists 101–110 publications: 492 scientists 111–120 publications: 541 scientists 121–130 publications: 617 scientists 131–140 publications: 544 scientists 141–150 publications: 541 scientists 151–160 publications: 539 scientists 161–170 publications: 444 scientists 171–180 publications: 444 scientists 181–190 publications: 400 scientists 191–200 publications: 377 scientists 201–210 publications: 318 scientists 211–220 publications: 283 scientists 221–230 publications: 263 scientists 231–240 publications: 220 scientists 241–250 publications: 217 scientists 251–260 publications: 180 scientists 261–270 publications: 181 scientists 271–280 publications: 155 scientists 281–290 publications: 130 scientists 291–300 publications: 127 scientists 301–310 publications: 130 scientists 311–320 publications: 85 scientists 321–330 publications: 106 scientists 331–340 publications: 80 scientists 341–350 publications: 83 scientists 351–360 publications: 75 scientists 361–370 publications: 69 scientists 371–380 publications: 52 scientists 381–390 publications: 54 scientists 391–400 publications: 56 scientists 401–410 publications: 44 scientists 411–420 publications: 40 scientists 421–430 publications: 36 scientists 431–440 publications: 25 scientists 441–450 publications: 25 scientists 451–460 publications: 32 scientists 461–470 publications: 29 scientists 471–480 publications: 21 scientists 481–490 publications: 26 scientists 491–500 publications: 25 scientists 501–510 publications: 17 scientists 511–520 publications: 18 scientists 521–530 publications: 15 scientists 531–540 publications: 22 scientists 541–550 publications: 12 scientists 551–560 publications: 15 scientists 561–570 publications: 11 scientists 571–580 publications: 19 scientists 581–590 publications: 9 scientists 591–600 publications: 9 scientists 601–610 publications: 7 scientists 611–620 publications: 11 scientists 621–630 publications: 5 scientists 631–640 publications: 5 scientists 641–650 publications: 6 scientists 651–660 publications: 3 scientists 661–670 publications: 3 scientists 671–680 publications: 4 scientists 681–686 publications: 3 scientists 687+ publications: 100 scientists
41 publications 687+

This scientist: 206 publications — 66th percentile

66% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 687 publications or more.

Masao Ishii D-index placement in Environmental Sciences in 2026

The chart shows the D-index (discipline H-index) distribution of Environmental Sciences scientists ranked by Research.com in 2026. The highlighted bar marks where Masao Ishii sits on this spectrum.

30 D-Index: 12 scientists 31 D-Index: 26 scientists 32 D-Index: 51 scientists 33 D-Index: 88 scientists 34 D-Index: 123 scientists 35 D-Index: 163 scientists 36 D-Index: 206 scientists 37 D-Index: 267 scientists 38 D-Index: 265 scientists 39 D-Index: 275 scientists 40 D-Index: 321 scientists 41 D-Index: 343 scientists 42 D-Index: 305 scientists 43 D-Index: 336 scientists 44 D-Index: 330 scientists 45 D-Index: 348 scientists 46 D-Index: 291 scientists 47 D-Index: 275 scientists 48 D-Index: 272 scientists 49 D-Index: 273 scientists 50 D-Index: 263 scientists 51 D-Index: 232 scientists 52 D-Index: 266 scientists 53 D-Index: 217 scientists 54 D-Index: 199 scientists 55 D-Index: 177 scientists 56 D-Index: 202 scientists 57 D-Index: 204 scientists 58 D-Index: 166 scientists 59 D-Index: 177 scientists 60 D-Index: 166 scientists 61 D-Index: 152 scientists 62 D-Index: 143 scientists 63 D-Index: 150 scientists 64 D-Index: 124 scientists 65 D-Index: 119 scientists 66 D-Index: 120 scientists 67 D-Index: 118 scientists 68 D-Index: 82 scientists 69 D-Index: 98 scientists 70 D-Index: 94 scientists 71 D-Index: 105 scientists 72 D-Index: 74 scientists 73 D-Index: 84 scientists 74 D-Index: 70 scientists 75 D-Index: 67 scientists 76 D-Index: 78 scientists 77 D-Index: 60 scientists 78 D-Index: 59 scientists 79 D-Index: 52 scientists 80 D-Index: 47 scientists 81 D-Index: 38 scientists 82 D-Index: 48 scientists 83 D-Index: 42 scientists 84 D-Index: 42 scientists 85 D-Index: 43 scientists 86 D-Index: 29 scientists 87 D-Index: 37 scientists 88 D-Index: 29 scientists 89 D-Index: 30 scientists 90 D-Index: 34 scientists 91 D-Index: 20 scientists 92 D-Index: 22 scientists 93 D-Index: 17 scientists 94 D-Index: 19 scientists 95 D-Index: 24 scientists 96 D-Index: 21 scientists 97 D-Index: 20 scientists 98 D-Index: 24 scientists 99 D-Index: 17 scientists 100 D-Index: 17 scientists 101 D-Index: 21 scientists 102 D-Index: 25 scientists 103 D-Index: 18 scientists 104 D-Index: 26 scientists 105 D-Index: 19 scientists 106 D-Index: 15 scientists 107 D-Index: 10 scientists 108 D-Index: 13 scientists 109 D-Index: 15 scientists 110 D-Index: 12 scientists 111 D-Index: 8 scientists 112 D-Index: 7 scientists 113 D-Index: 9 scientists 114 D-Index: 6 scientists 115 D-Index: 12 scientists 116 D-Index: 7 scientists 117 D-Index: 8 scientists 118 D-Index: 3 scientists 119 D-Index: 5 scientists 120 D-Index: 7 scientists 121 D-Index: 2 scientists 122 D-Index: 4 scientists 123 D-Index: 8 scientists 124 D-Index: 7 scientists 125+ D-Index: 99 scientists
30 D-Index 125+

This scientist: 50 D-Index — 50th percentile

50% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 125 D-Index or more.

Overview

Masao Ishii is affiliated with the Japan Meteorological Agency in Japan and has contributed extensively to the fields of Earth and Planetary Sciences and Environmental Science. Their research primarily focuses on Oceanography and related subfields, including Global and Planetary Change, Atmospheric Science, and Environmental Chemistry.

Their work spans a broad range of topics, with significant emphasis on marine and coastal ecosystems, ocean acidification effects and responses, atmospheric and environmental gas dynamics, marine biology and ecology research, Arctic and Antarctic ice dynamics, methane hydrates and related phenomena, as well as blood pressure and hypertension studies.

Masao Ishii has published research in various scientific venues, frequently contributing to:

  • Journal of Oceanography
  • Global Biogeochemical Cycles
  • Earth system science data
  • Journal of Geophysical Research Oceans
  • The Lancet

Some of the recent papers associated with this scientist include:

  • Pharmacological blood pressure lowering for primary and secondary prevention of cardiovascular disease across different levels of blood pressure: an individual participant-level data meta-analysis (2021, The Lancet)
  • Age-stratified and blood-pressure-stratified effects of blood-pressure-lowering pharmacotherapy for the prevention of cardiovascular disease and death: an individual participant-level data meta-analysis (2021, The Lancet)
  • Global trends of ocean CO2 sink and ocean acidification: an observation-based reconstruction of surface ocean inorganic carbon variables (2020, Journal of Oceanography)
  • An updated version of the global interior ocean biogeochemical data product, GLODAPv2.2020 (2020, Earth system science data)
  • GLODAPv2.2022: the latest version of the global interior ocean biogeochemical data product (2022, Earth system science data)

Masao Ishii's research collaborations include a number of frequent coauthors, such as:

  • Naohiro Kosugi (10 publications)
  • Katsuya Toyama (9 publications)
  • Richard A. Feely (8 publications)
  • Daisuke Sasano (8 publications)
  • Brendan R. Carter (7 publications)

The scientist's work demonstrates an interdisciplinary approach that integrates oceanographic data with environmental and atmospheric sciences. This includes the use of observation-based reconstructions and updated biogeochemical data products to better understand global oceanic processes and their wider environmental implications.

Additionally, Masao Ishii has published research intersecting with cardiology and cardiovascular medicine, with studies examining pharmacological interventions for blood pressure management and their effects on cardiovascular outcomes.

Best Publications

  • Climatological mean and decadal change in surface ocean pCO2, and net sea–air CO2 flux over the global oceans

    Taro Takahashi;Stewart C. Sutherland;Rik H. Wanninkhof;Colm Sweeney

  • The oceanic sink for anthropogenic CO2 from 1994 to 2007

    Nicolas Gruber;Dominic Clement;Brendan Carter;Brendan Carter;Richard A. Feely

  • Global Carbon and other Biogeochemical Cycles and Feedbacks

    Josep G. Canadell;Pedro M.S. Monteiro;Marcos H. Costa;Leticia Cotrim Da Cunha

  • The Global Ocean Data Analysis Project version 2 (GLODAPv2) – an internally consistent data product for the world ocean

    Are Olsen;Robert M. Key;Steven van Heuven;Siv K. Lauvset;Siv K. Lauvset

  • A review of global ocean temperature observations: Implications for ocean heat content estimates and climate change

    J. P. Abraham;M. Baringer;N. L. Bindoff;N. L. Bindoff;N. L. Bindoff;T. Boyer

  • A new global interior ocean mapped climatology: the 1° × 1° GLODAP version 2

    Siv Kari Lauvset;Siv Kari Lauvset;Robert M. Key;Are Olsen;Are Olsen;Steven van Heuven

  • Corrigendum to "Climatological mean and decadal change in surface ocean pCO2, and net sea-air CO2 flux over the global oceans" Deep Sea Res. II 56 (2009) 554-577 (DOI:10.1016/j.dsr2.2008.12.009)

    T Takahashi;SC Sutherland;R Wanninkhof;C Sweeney

  • Corrigendum to "Climatological mean and decadal change in surface ocean pCO2, and net sea-air CO2 flux over the global oceans" [Deep Sea Res. II 56 (2009) 554-577]

    Taro Takahashi;Stewart C. Sutherland;Rik H. Wanninkhof;Colm Sweeney

  • Seasonal and interannual variability of CO2 in the equatorial Pacific

    Richard A Feely;Jacqueline Boutin;Catherine E Cosca;Yves Dandonneau

  • A uniform, quality controlled Surface Ocean CO2 Atlas (SOCAT)

    B. Pfeil;B. Pfeil;B. Pfeil;A. Olsen;D.C.E. Bakker;S. Hankin

  • Sea–air CO 2 fluxes in the Southern Ocean for the period 1990–2009

    Andrew Lenton;Bronte Tilbrook;Bronte Tilbrook;R. M. Law;Dorothee C. E. Bakker

  • Global trends of ocean CO 2 sink and ocean acidification: an observation-based reconstruction of surface ocean inorganic carbon variables

    Yosuke Iida;Yusuke Takatani;Atsushi Kojima;Masao Ishii

  • GLOBAL OCEAN DATA ANALYSIS PROJECT, VERSION 2 (GLODAPv2)

    R. M. Key;A. Olsen;S. van Heuven;S. K. Lauvset

  • GLODAPv2.2019 – an update of GLODAPv2

    Are Olsen;Nico Lange;Robert M. Key;Toste Tanhua

  • Surface Ocean CO2 Atlas (SOCAT) gridded data products

    C.L. Sabine;S. Hankin;H. Koyuk;H. Koyuk;D.C.E. Bakker

  • A Global Ocean Oxygen Database and Atlas for Assessing and Predicting Deoxygenation and Ocean Health in the Open and Coastal Ocean

    Unknown

  • Climatological Mean and Decadal Change in Surface Ocean Pco(2), and Net Sea-Air Co2 Flux Over the Global Oceans (Vol 56, Pg 554, 2009)

    T. Takahashi;S. C. Sutherland;R. Wanninkhof;C. Sweeney

  • An updated version of the global interior ocean biogeochemical data product, GLODAPv2.2020

    Are Olsen;Nico Lange;Robert M. Key;Toste Tanhua

  • The Global Ocean Ship-Based Hydrographic Investigations Program (GO-SHIP): A Platform for Integrated Multidisciplinary Ocean Science

    Bernadette M. Sloyan;Rik Wanninkhof;Martin Kramp;Gregory C. Johnson

  • Long‐term trend of the partial pressure of carbon dioxide (pCO2) in surface waters of the western North Pacific, 1984–1993

    Hisayuki Yoshikawa Inoue;Hidekazu Matsueda;Masao Ishii;Katsuhiko Fushimi

  • Aircraft observation of carbon dioxide at 8–13 km altitude over the western Pacific from 1993 to 1999

    Hidekazu Matsueda;Hisayuki Yoshikawa Inoue;Masao Ishii

  • An updated version of the global interior ocean biogeochemical data product, GLODAPv2.2021

    Siv K. Lauvset;Nico Lange;Toste Tanhua;Henry C. Bittig

Frequent Co-Authors

Robert M. Key
Robert M. Key Princeton University
Mario Hoppema
Mario Hoppema Alfred Wegener Institute for Polar and Marine Research
Richard A. Feely
Richard A. Feely University of Washington
Bronte Tilbrook
Bronte Tilbrook CSIRO Marine and Atmospheric Research
Fiz F. Pérez
Fiz F. Pérez Spanish National Research Council
Are Olsen
Are Olsen University of Bergen
Akihiko Murata
Akihiko Murata Japan Agency for Marine-Earth Science and Technology
Rik Wanninkhof
Rik Wanninkhof Atlantic Oceanographic and Meteorological Laboratory
Christopher L. Sabine
Christopher L. Sabine University of Hawaii at Manoa
Toste Tanhua
Toste Tanhua GEOMAR Helmholtz Centre for Ocean Research Kiel

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