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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Environmental Sciences 37 8972 8607 183 180 185 4420

Masao Uchida publications per year

The chart shows the history of publications by Masao Uchida between 1994 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Masao Uchida published across 32 years, from 1994 to 2025, averaging 6.2 papers a year. Output peaked at 19 publications in 2010. 10 of the 199 publications appeared in the last two years.

No. of publications
5 10 15
Bar chart. Horizontal axis: year, 1994 to 2025. Vertical axis: number of publications, 0 to 19. Peak 19 publications in 2010. 1994: 1 publication 1995: 0 publications 1996: 1 publication 1997: 0 publications 1998: 0 publications 1999: 0 publications 2000: 4 publications 2001: 6 publications 2002: 7 publications 2003: 8 publications 2004: 11 publications 2005: 5 publications 2006: 5 publications 2007: 8 publications 2008: 11 publications 2009: 7 publications 2010: 19 publications 2011: 13 publications 2012: 11 publications 2013: 15 publications 2014: 16 publications 2015: 9 publications 2016: 7 publications 2017: 6 publications 2018: 3 publications 2019: 7 publications 2020: 3 publications 2021: 2 publications 2022: 1 publication 2023: 3 publications 2024: 5 publications 2025: 5 publications
1994 2025

199 publications in total across all disciplines

View publications per year as a table
Masao Uchida: publications per year, 1994 to 2025
Year Publications
1994 1
1995 0
1996 1
1997 0
1998 0
1999 0
2000 4
2001 6
2002 7
2003 8
2004 11
2005 5
2006 5
2007 8
2008 11
2009 7
2010 19
2011 13
2012 11
2013 15
2014 16
2015 9
2016 7
2017 6
2018 3
2019 7
2020 3
2021 2
2022 1
2023 3
2024 5
2025 5
Total 199
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Masao Uchida 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 Uchida 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, 181–190 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: 185 publications — 58th percentile

58% 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
181–190 400 185
191–200 377
201–210 318
211–220 282
221–230 263
231–240 220
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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Masao Uchida 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 Uchida 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, 37 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: 37 D-Index — 10th percentile

10% 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 37
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
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

Masao Uchida is a researcher affiliated with the National Institute for Environmental Studies in Japan. Their scientific work primarily falls within Earth and Planetary Sciences, with a focus on several subfields including Atmospheric Science, Global and Planetary Change, Earth-Surface Processes, Health, Toxicology and Mutagenesis, and Animal Science and Zoology.

The main topics addressed in Uchida's research cover Geology and Paleoclimatology Research, Climate Change and Permafrost, Cryospheric Studies and Observations, Atmospheric Chemistry and Aerosols, Air Quality and Health Impacts, Aeolian Processes and Effects, and Marine and Environmental Studies.

Uchida's frequent publication venues include:

  • Radiocarbon
  • Quaternary Science Reviews
  • Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms
  • Scientific Reports
  • British Poultry Science

Their recent papers demonstrate a focus on climate variability, permafrost projections, isotope-based source apportionment of aerosols, and advanced analytical methods. Selected titles of recent publications are:

  • "Abrupt climate variability since the last deglaciation based on a high-resolution peat dust deposition record from southwest China," 2020, Quaternary Science Reviews
  • "Projections of surface air temperature required to sustain permafrost and importance of adaptation to climate change in the Daisetsu Mountains, Japan," 2021, Scientific Reports
  • "Ultra small mass AMS 14C sample preparation and analyses at NIES-TERRA AMS facility," 2023, Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms
  • "Holocene dynamics of the Indian summer monsoon inferred from a high-resolution peat α-cellulose δ18O record on the Tibetan Plateau," 2024, Quaternary Science Reviews
  • "Source apportionment of black carbon aerosols by isotopes (14C and 13C) and Bayesian modeling from two remote islands in east Asian outflow region," 2023, Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms

Uchida collaborates frequently with other researchers, including Kanako Mantoku, Toshiyuki Kobayashi, Kimitaka Kawamura, Yasuyuki Shibata, and Go Iwahana. The frequency of co-authorship highlights ongoing collaborative efforts in their scientific endeavors.

Best Publications

  • Correlation between Indian Ocean summer monsoon and North Atlantic climate during the Holocene

    Y.T. Hong;B. Hong;Q.H. Lin;Y.X. Zhu

  • Tsunami deposits in a lacustrine sequence of the Sanriku coast, northeast Japan

    Koji Minoura;Shu Nakaya;Masao Uchida

  • Increasing summer rainfall in arid eastern-Central Asia over the past 8500 years

    Bing Hong;Françoise Gasse;Masao Uchida;Yetang Hong

  • An interlaboratory study of TEX86 and BIT analysis of sediments, extracts, and standard mixtures

    Stefan Schouten;Ellen C Hopmans;Antoni Rosell-Melé;Ann Pearson

  • Characteristics of alkenones synthesized by a bloom of Emiliania huxleyi in the Bering Sea

    Naomi Harada;Kyung Hoon Shin;Akihiko Murata;Masao Uchida

  • Rapid fluctuation of alkenone temperature in the southwestern Okhotsk Sea during the past 120 ky

    Naomi Harada;Naokazu Ahagon;Tatsuhiko Sakamoto;Masao Uchida

  • Mid-depth circulation in the northwest Pacific during the last deglaciation: Evidence from foraminiferal radiocarbon ages

    Naokazu Ahagon;Ken'ichi Ohkushi;Masao Uchida;Toshiaki Mishima

  • Late Quaternary paleoceanographic changes in the southwestern Okhotsk Sea: Evidence from geochemical, radiolarian, and diatom records

    Yusuke Okazaki;Kozo Takahashi;Kota Katsuki;Ayumu Ono

  • Radiocarbon Marine Reservoir Effect in Human Remains from the Kitakogane Site, Hokkaido, Japan

    Minoru Yoneda;Atsushi Tanaka;Yasuyuki Shibata;Masatoshi Morita

  • Radiocarbon content and stable carbon isotopic ratios of individual fatty acids in subsurface soil: Implication for selective microbial degradation and modification of soil organic matter

    Kohei Matsumoto;Kimitaka Kawamura;Masao Uchida;Yasuyuki Shibata

  • Anti-phase oscillation of Asian monsoons during the Younger Dryas period: Evidence from peat cellulose δ13C of Hani, Northeast China

    B. Hong;Y.T. Hong;Q.H. Lin;Yasuyuki Shibata

  • An interlaboratory study of TEX86 and BIT analysis using high-performance liquid chromatography-mass spectrometry

    Stefan Schouten;Ellen C. Hopmans;Jaap van der Meer;Anchelique Mets

  • AMS 14C measurement and preparative techniques at NIES-TERRA

    Minoru Yoneda;Yasuyuki Shibata;Atsushi Tanaka;Takashi Uehiro

  • Pre-bomb marine reservoir ages in the western north Pacific: Preliminary result on Kyoto University collection

    Minoru Yoneda;Hiroyuki Kitagawa;Johannes van der Plicht;Masao Uchida

  • Technical progress in AMS microscale radiocarbon analysis

    Masao Uchida;Masao Uchida;Yasuyuki Shibata;Minoru Yoneda;Toshiyuki Kobayashi

  • Marine radiocarbon reservoir effect in the western North Pacific observed in archaeological fauna

    Minoru Yoneda;Masashi Hirota;Masao Uchida;Kazuhiro Uzawa

  • Compound class specific 14C analysis of polycyclic aromatic hydrocarbons associated with PM10 and PM1.1 aerosols from residential areas of suburban Tokyo.

    Hidetoshi Kumata;Masao Uchida;Eisuke Sakuma;Tatsuya Uchida

  • Millennial-scale paleoceanographic events and implication for the intermediate-water ventilation in the northern slope area of the Bering Sea during the last 71 kyrs

    S. Kim;B.K. Khim;M. Uchida;T. Itaki

  • The importance of ultrafine particles as a control on the distribution of organic carbon in Washington Margin and Cascadia Basin sediments

    L. Coppola;L. Coppola;Örjan Gustafsson;P. Andersson;T.I. Eglinton

  • Compound specific radiocarbon and δ13C measurements of fatty acids in a continental aerosol sample

    Kohei Matsumoto;Kimitaka Kawamura;Masao Uchida;Yasuyuki Shibata

  • Identification of Volatile Selenium Compounds Produced in the Hydride Generation System from Organoselenium Compounds

    Amit Chatterjee;Yasuyuki Shibata;Minoru Yoneda;Rupendranath Banerjee

Frequent Co-Authors

Yasuyuki Shibata
Yasuyuki Shibata Tokyo University of Marine Science and Technology
Ryuji Tada
Ryuji Tada University of Tokyo
Takuya Itaki
Takuya Itaki National Institute of Advanced Industrial Science and Technology
Minoru Ikehara
Minoru Ikehara Kōchi University
Kimitaka Kawamura
Kimitaka Kawamura Chubu University
Masatoshi Morita
Masatoshi Morita United Nations University
Ken Ikehara
Ken Ikehara National Institute of Advanced Industrial Science and Technology
Ichiro Tayasu
Ichiro Tayasu Research Institute for Humanity and Nature
Hitoshi Mukai
Hitoshi Mukai National Institute for Environmental Studies
Hideshige Takada
Hideshige Takada Tokyo University of Agriculture and Technology

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