World's Best Scientists 2026 revealed!
Katsumi Hirose

Katsumi Hirose

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Environmental Sciences 52 4569 4373 77 74 239 8250

Katsumi Hirose publications per year

The chart shows the history of publications by Katsumi Hirose between 1975 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Katsumi Hirose published across 51 years, from 1975 to 2025, averaging 5.2 papers a year. Output peaked at 14 publications in 2003. 4 of the 263 publications appeared in the last two years.

No. of publications
5 10
Bar chart. Horizontal axis: year, 1975 to 2025. Vertical axis: number of publications, 0 to 14. Peak 14 publications in 2003. 1975: 1 publication 1976: 0 publications 1977: 0 publications 1978: 1 publication 1979: 0 publications 1980: 0 publications 1981: 3 publications 1982: 4 publications 1983: 3 publications 1984: 1 publication 1985: 3 publications 1986: 3 publications 1987: 4 publications 1988: 3 publications 1989: 1 publication 1990: 3 publications 1991: 2 publications 1992: 1 publication 1993: 5 publications 1994: 6 publications 1995: 5 publications 1996: 5 publications 1997: 3 publications 1998: 6 publications 1999: 8 publications 2000: 8 publications 2001: 7 publications 2002: 5 publications 2003: 14 publications 2004: 12 publications 2005: 6 publications 2006: 8 publications 2007: 6 publications 2008: 6 publications 2009: 7 publications 2010: 3 publications 2011: 10 publications 2012: 6 publications 2013: 12 publications 2014: 7 publications 2015: 12 publications 2016: 6 publications 2017: 12 publications 2018: 6 publications 2019: 10 publications 2020: 10 publications 2021: 11 publications 2022: 2 publications 2023: 2 publications 2024: 2 publications 2025: 2 publications
1975 2025

263 publications in total across all disciplines

View publications per year as a table
Katsumi Hirose: publications per year, 1975 to 2025
Year Publications
1975 1
1976 0
1977 0
1978 1
1979 0
1980 0
1981 3
1982 4
1983 3
1984 1
1985 3
1986 3
1987 4
1988 3
1989 1
1990 3
1991 2
1992 1
1993 5
1994 6
1995 5
1996 5
1997 3
1998 6
1999 8
2000 8
2001 7
2002 5
2003 14
2004 12
2005 6
2006 8
2007 6
2008 6
2009 7
2010 3
2011 10
2012 6
2013 12
2014 7
2015 12
2016 6
2017 12
2018 6
2019 10
2020 10
2021 11
2022 2
2023 2
2024 2
2025 2
Total 263
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Katsumi Hirose 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 Katsumi Hirose sits on this spectrum.

No. of scientists
200 400 600
Bar chart with 66 bars. Horizontal axis: publications, 41–50 to 690+. Vertical axis: number of scientists, 0 to 617. Most scientists, 617, have 121–130 publications. The last bar groups every scientist with 690 publications or more. The highlighted bar, 231–240 publications, is where this scientist sits. 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: 282 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: 26 scientists 501–510 publications: 17 scientists 511–520 publications: 19 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 681–689 publications: 4 scientists 690+ publications: 100 scientists
41–50 publications 690+

This scientist: 239 publications — 75th percentile

75% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 690 publications or more.

View publications distribution as a table
Number of Environmental Sciences scientists by publication count, Research.com 2026 ranking edition. Based on 9,676 ranked scientists.
Publications Scientists This scientist
41–50 21
51–60 62
61–70 133
71–80 257
81–90 361
91–100 440
101–110 492
111–120 541
121–130 617
131–140 544
141–150 541
151–160 539
161–170 444
171–180 444
181–190 400
191–200 377
201–210 318
211–220 282
221–230 263
231–240 220 239
241–250 217
251–260 180
261–270 181
271–280 155
281–290 130
291–300 127
301–310 130
311–320 85
321–330 106
331–340 80
341–350 83
351–360 75
361–370 69
371–380 52
381–390 54
391–400 56
401–410 44
411–420 40
421–430 36
431–440 25
441–450 25
451–460 32
461–470 29
471–480 21
481–490 26
491–500 26
501–510 17
511–520 19
521–530 15
531–540 22
541–550 12
551–560 15
561–570 11
571–580 19
581–590 9
591–600 9
601–610 7
611–620 11
621–630 5
631–640 5
641–650 6
651–660 3
661–670 3
671–680 4
681–689 4
690+ 100
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Katsumi Hirose 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 Katsumi Hirose sits on this spectrum.

No. of scientists
100 200 300
Bar chart with 97 bars. Horizontal axis: D-Index, 30 to 126+. Vertical axis: number of scientists, 0 to 348. Most scientists, 348, have 45 D-Index. The last bar groups every scientist with 126 D-Index or more. The highlighted bar, 52 D-Index, is where this scientist sits. 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: 198 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: 20 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: 9 scientists 126+ D-Index: 92 scientists
30 D-Index 126+

This scientist: 52 D-Index — 55th percentile

55% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 126 D-Index or more.

View D-Index distribution as a table
Number of Environmental Sciences scientists by D-index, Research.com 2026 ranking edition. Based on 9,676 ranked scientists.
D-Index Scientists This scientist
30 12
31 26
32 51
33 88
34 123
35 163
36 206
37 267
38 265
39 275
40 321
41 343
42 305
43 336
44 330
45 348
46 291
47 275
48 272
49 273
50 263
51 232
52 266 52
53 217
54 198
55 177
56 202
57 204
58 166
59 177
60 166
61 152
62 143
63 150
64 124
65 119
66 120
67 118
68 82
69 98
70 94
71 105
72 74
73 84
74 70
75 67
76 78
77 60
78 59
79 52
80 47
81 38
82 48
83 42
84 42
85 43
86 29
87 37
88 29
89 30
90 34
91 20
92 22
93 17
94 19
95 24
96 21
97 20
98 24
99 17
100 17
101 21
102 25
103 18
104 26
105 20
106 15
107 10
108 13
109 15
110 12
111 8
112 7
113 9
114 6
115 12
116 7
117 8
118 3
119 5
120 7
121 2
122 4
123 8
124 7
125 9
126+ 92
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Overview

Katsumi Hirose is affiliated with Sophia University in Japan and specializes in environmental sciences with a focus on radioactive contamination and its environmental impact. Their research encompasses multiple disciplines including Health Professions and Engineering, addressing complex issues related to the presence and movement of radioactive substances in ecological systems.

The body of work reflects significant engagement with the study of radioactive contamination and transfer, radioactivity and radon measurements, and nuclear and radioactivity studies. These research topics are supported by publications spanning several aspects of environmental radioactivity, isotope analysis, and related chemical processing.

Frequent coauthors collaborating with Hirose include Pavel P. Povinec, Michio Aoyama, Yutaka Tateda, and Yoshikazu Kikawada. This collaborative network has contributed to a variety of studies primarily published in the Journal of Environmental Radioactivity, which accounts for the majority of Hirose's publication output. Other publication venues include Scientific Reports and Research Square.

Major fields of study encompassing Hirose's research efforts are Environmental Science, Health Professions, and Engineering. Subfields include Global and Planetary Change, Radiological and Ultrasound Technology, and Safety, Risk, Reliability and Quality, with additional work in Inorganic Chemistry and Atmospheric Science.

Recent papers authored by Hirose illustrate a focus on radioactive contamination from environmental events and the tracking of radionuclides in natural water systems. These include:

  • Atmospheric effects of Fukushima nuclear accident: A review from a sight of atmospheric monitoring, 2020, Journal of Environmental Radioactivity
  • Ten years of investigations of Fukushima radionuclides in the environment: A review on process studies in environmental compartments, 2022, Journal of Environmental Radioactivity
  • 90Sr and 137Cs as tracers of oceanic eddies in the sea of Japan/East sea, 2020, Journal of Environmental Radioactivity
  • Temporal variability of plutonium in surface waters of the Sea of Japan, 2022, Journal of Environmental Radioactivity

Best Publications

  • 2011 Fukushima Dai-ichi nuclear power plant accident: summary of regional radioactive deposition monitoring results

    Katsumi Hirose

  • Distribution of oceanic 137Cs from the Fukushima Dai-ichi Nuclear Power Plant simulated numerically by a regional ocean model.

    Daisuke Tsumune;Takaki Tsubono;Michio Aoyama;Katsumi Hirose

  • Re-construction and updating our understanding on the global weapons tests 137Cs fallout

    Michio Aoyama;Katsumi Hirose;Yasuhito Igarashi

  • Fukushima Accident: Radioactivity Impact on the Environment

    Pavel P. Povinec;Katsumi Hirose;道夫 青山

  • 90Sr, 137Cs and 239,240Pu concentration surface water time series in the Pacific and Indian Oceans - WOMARS results

    Pavel P. Povinec;Asker Aarkrog;Ken O. Buesseler;Roberta Delfanti

  • High level radioactive nuclides in Japan in May.

    M. Aoyama;K. Hirose;Y. Suzuki;H. Inoue

  • Chemical Speciation of Trace Metals in Seawater: a Review

    Katsumi Hirose

  • Spatial distribution of 3H, 90Sr, 137Cs and 239,240Pu in surface waters of the Pacific and Indian Oceans—GLOMARD database

    Pavel P Povinec;Katsumi Hirose;Teruyuki Honda;Toshimichi Ito

  • Analysis of the 50-year records of the atmospheric deposition of long-lived radionuclides in Japan

    K. Hirose;Y. Igarashi;M. Aoyama

  • Radiostrontium in the Western North Pacific: Characteristics, Behavior, and the Fukushima Impact

    Pavel P. Povinec;Katsumi Hirose;Katsumi Hirose;Michio Aoyama

  • IAEA’97 expedition to the NW Pacific Ocean—results of oceanographic and radionuclide investigations of the water column

    Pavel P Povinec;Hugh D Livingston;Shigeki Shima;Michio Aoyama

  • Determination of conditional stability constants of organic copper and zinc complexes dissolved in seawater using ligand exchange method with EDTA

    K. Hirose;Y. Dokiya;Y. Sugimura

  • Annual deposition of Sr-90, Cs-137 and Pu-239, 240 from the 1961 - 1980 nuclear explosions: a simple model

    K. Hirose;M. Aoyama;Y. Katsuragi;Y. Sugimura

  • Dispersion of Fukushima radionuclides in the global atmosphere and the ocean

    Pp Povinec;M Gera;K Holý;K Hirose;K Hirose

  • Seasonal and spatial variation of atmospheric 210Pb and 7Be deposition: features of the Japan Sea side of Japan.

    Masayoshi Yamamoto;Aya Sakaguchi;Keiichi Sasaki;Katsumi Hirose

  • Artificial radionuclides database in the Pacific Ocean: HAM database.

    Michio Aoyama;Katsumi Hirose

  • Anthropogenic radionuclides in the atmosphere observed at Tsukuba: characteristics of the radionuclides derived from Fukushima.

    Taeko Doi;Kazuyoshi Masumoto;Akihiro Toyoda;Atsushi Tanaka

  • Recent trends of plutonium fallout observed in Japan: plutonium as a proxy for desertification.

    Katsumi Hirose;Yasuhito Igarashi;Michio Aoyama;C. K. Kim

  • Plutonium isotopes in seas around the Korean Peninsula

    C.K Kim;C.S Kim;B.U Chang;S.W Choi

  • Anthropogenic radionuclides in seawater in the East Sea/Japan Sea: Results of the first-stage Japanese–Korean–Russian expedition

    K. Hirose;H. Amano;M.S. Baxter;E. Chaykovskaya

Frequent Co-Authors

Michio Aoyama
Michio Aoyama University of Tsukuba
Yasuhito Igarashi
Yasuhito Igarashi Kyoto University
Pavel P. Povinec
Pavel P. Povinec Comenius University
Joan-Albert Sanchez-Cabeza
Joan-Albert Sanchez-Cabeza National Autonomous University of Mexico
Yasuyuki Shibata
Yasuyuki Shibata Tokyo University of Marine Science and Technology
Frank O. Bryan
Frank O. Bryan National Center for Atmospheric Research
Ken O. Buesseler
Ken O. Buesseler Woods Hole Oceanographic Institution
Yuichi Onda
Yuichi Onda University of Tsukuba
Jian Zheng
Jian Zheng National Institutes for Quantum and Radiological Science and Technology
Nobuo Sugimoto
Nobuo Sugimoto National Institute for Environmental Studies

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