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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Earth Science 87 343 294 180 150 558 25197

James C. Hower publications per year

The chart shows the history of publications by James C. Hower between 1957 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. James C. Hower published across 69 years, from 1957 to 2025, averaging 10.1 papers a year. Output peaked at 41 publications in 2021. 45 of the 698 publications appeared in the last two years.

No. of publications
10 20 30 40
Bar chart. Horizontal axis: year, 1957 to 2025. Vertical axis: number of publications, 0 to 41. Peak 41 publications in 2021. 1957: 1 publication 1958: 0 publications 1959: 0 publications 1960: 0 publications 1961: 0 publications 1962: 0 publications 1963: 0 publications 1964: 0 publications 1965: 0 publications 1966: 0 publications 1967: 0 publications 1968: 0 publications 1969: 0 publications 1970: 0 publications 1971: 0 publications 1972: 0 publications 1973: 0 publications 1974: 0 publications 1975: 0 publications 1976: 0 publications 1977: 1 publication 1978: 0 publications 1979: 1 publication 1980: 2 publications 1981: 5 publications 1982: 4 publications 1983: 4 publications 1984: 12 publications 1985: 2 publications 1986: 5 publications 1987: 9 publications 1988: 5 publications 1989: 8 publications 1990: 6 publications 1991: 15 publications 1992: 10 publications 1993: 7 publications 1994: 12 publications 1995: 10 publications 1996: 15 publications 1997: 18 publications 1998: 13 publications 1999: 21 publications 2000: 14 publications 2001: 9 publications 2002: 12 publications 2003: 11 publications 2004: 10 publications 2005: 14 publications 2006: 9 publications 2007: 8 publications 2008: 16 publications 2009: 16 publications 2010: 14 publications 2011: 25 publications 2012: 16 publications 2013: 26 publications 2014: 25 publications 2015: 25 publications 2016: 19 publications 2017: 26 publications 2018: 23 publications 2019: 18 publications 2020: 23 publications 2021: 41 publications 2022: 28 publications 2023: 39 publications 2024: 18 publications 2025: 27 publications
1957 2025

698 publications in total across all disciplines

View publications per year as a table
James C. Hower: publications per year, 1957 to 2025
Year Publications
1957 1
1958 0
1959 0
1960 0
1961 0
1962 0
1963 0
1964 0
1965 0
1966 0
1967 0
1968 0
1969 0
1970 0
1971 0
1972 0
1973 0
1974 0
1975 0
1976 0
1977 1
1978 0
1979 1
1980 2
1981 5
1982 4
1983 4
1984 12
1985 2
1986 5
1987 9
1988 5
1989 8
1990 6
1991 15
1992 10
1993 7
1994 12
1995 10
1996 15
1997 18
1998 13
1999 21
2000 14
2001 9
2002 12
2003 11
2004 10
2005 14
2006 9
2007 8
2008 16
2009 16
2010 14
2011 25
2012 16
2013 26
2014 25
2015 25
2016 19
2017 26
2018 23
2019 18
2020 23
2021 41
2022 28
2023 39
2024 18
2025 27
Total 698
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James C. Hower 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 James C. Hower 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, 558–567 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: 558 publications — 98th percentile

98% 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
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 11 558
568–577 7
578–587 14
588–597 5
598–602 4
603+ 100
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James C. Hower 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 James C. Hower 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, 87 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: 87 D-Index — 96th percentile

96% 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
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 87
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
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Research.com Recognitions

  • Fellow of the Geological Society of America
  • Fellow of the Geological Society of America
  • Fellow of the Geological Society of America
  • Fellow of the Geological Society of America

Overview

James C. Hower is affiliated with the University of Kentucky in the United States. Their research is situated primarily within the fields of Earth and Planetary Sciences and Engineering, with significant contributions to subfields such as Geochemistry and Petrology, Ocean Engineering, Mechanics of Materials, Building and Construction, and Pollution.

The scientist has an extensive publication record, frequently contributing to journals including:

  • International Journal of Coal Geology (49 publications)
  • Fuel (15 publications)
  • SSRN Electronic Journal (10 publications)
  • Geoscience Frontiers (7 publications)
  • UKnowledge (University of Kentucky) (6 publications)

Research topics addressed by James C. Hower focus on:

  • Coal and Its By-products
  • Coal Properties and Utilization
  • Geochemistry and Elemental Analysis
  • Hydrocarbon exploration and reservoir analysis
  • Recycling and utilization of industrial and municipal waste in materials production
  • Heavy metals in environment
  • Geological and Geochemical Analysis

Among the recent papers, the following are notable along with their year of publication and venue:

  • "Recognition of peat depositional environments in coal: A review," 2020, International Journal of Coal Geology
  • "Modes of occurrence of elements in coal: A critical evaluation," 2021, Earth-Science Reviews
  • "A review of rare earth elements and yttrium in coal ash: Content, modes of occurrences, combustion behavior, and extraction methods," 2021, Progress in Energy and Combustion Science
  • "Possibilities of using silicate rock powder: An overview," 2021, Geoscience Frontiers
  • "A Note on the Occurrence of Yttrium and Rare Earth Elements in Coal Combustion Products," 2024, UKnowledge (University of Kentucky)

Frequent collaborators in their research include:

  • Shifeng Dai
  • Ian T. Graham
  • David French
  • Cortland F. Eble
  • Lei Zhao

James C. Hower has been recognized as a Fellow of the Geological Society of America.

Best Publications

  • Enrichment of U–Se–Mo–Re–V in coals preserved within marine carbonate successions: geochemical and mineralogical data from the Late Permian Guiding Coalfield, Guizhou, China

    Shifeng Dai;Vladimir V. Seredin;Colin R. Ward;James C. Hower

  • Lanthanide, yttrium, and zirconium anomalies in the Fire Clay coal bed, Eastern Kentucky

    James C Hower;Leslie F Ruppert;Cortland F Eble

  • Recognition of peat depositional environments in coal: A review

    Shifeng Dai;Achim Bechtel;Cortland F. Eble;Romeo M. Flores

  • On the fundamental difference between coal rank and coal type

    Jennifer M.K. O'Keefe;Achim Bechtel;Kimon Christanis;Shifeng Dai

  • Petrology, mineralogy, and geochemistry of the Ge-rich coal from the Wulantuga Ge ore deposit, Inner Mongolia, China: New data and genetic implications

    Shifeng Dai;Xibo Wang;Vladimir V. Seredin;James C. Hower

  • Chemical and mineralogical compositions of silicic, mafic, and alkali tonsteins in the late Permian coals from the Songzao Coalfield, Chongqing, Southwest China

    Shifeng Dai;Xibo Wang;Yiping Zhou;James C. Hower

  • Trends in the Rare Earth Element Content of U.S.-Based Coal Combustion Fly Ashes.

    Ross K. Taggart;James C. Hower;Gary S. Dwyer;Heileen Hsu-Kim

  • Mercury capture by native fly ash carbons in coal-fired power plants

    James C. Hower;Constance L. Senior;Eric M. Suuberg;Robert H. Hurt

  • Mineralogical and geochemical anomalies of late Permian coals from the Fusui Coalfield, Guangxi Province, southern China: Influences of terrigenous materials and hydrothermal fluids

    Shifeng Dai;Weiguo Zhang;Weiguo Zhang;Colin R. Ward;Vladimir V. Seredin

  • Impact of coal properties on coal combustion by-product quality: examples from a Kentucky power plant

    Sarah M. Mardon;James C. Hower

  • Modes of occurrence of elements in coal: A critical evaluation

    Shifeng Dai;Robert B. Finkelman;Robert B. Finkelman;David French;James C. Hower

  • Enrichment of U-Re-V-Cr-Se and rare earth elements in the Late Permian coals of the Moxinpo Coalfield, Chongqing, China: Genetic implications from geochemical and mineralogical data

    Shifeng Dai;Panpan Xie;Shaohui Jia;Colin R. Ward

  • Valuable elements in Chinese coals: a review

    Shifeng Dai;Xiaoyun Yan;Colin R. Ward;James C. Hower

  • Origin of minerals and elements in the Late Permian coals, tonsteins, and host rocks of the Xinde Mine, Xuanwei, eastern Yunnan, China

    Shifeng Dai;Tian Li;Vladimir V. Seredin;Colin R. Ward

  • Geochemical and mineralogical evidence for a coal-hosted uranium deposit in the Yili Basin, Xinjiang, northwestern China

    Shifeng Dai;Jianye Yang;Colin R. Ward;James C. Hower

  • Distribution of rare earth elements in coal combustion fly ash, determined by SHRIMP-RG ion microprobe

    Allan Kolker;Clint Scott;James C. Hower;Jorge A. Vazquez

  • Revisiting the late Permian coal from the Huayingshan, Sichuan, southwestern China: Enrichment and occurrence modes of minerals and trace elements

    Shifeng Dai;Yangbing Luo;Vladimir V. Seredin;Colin R. Ward

  • Composition and modes of occurrence of minerals and elements in coal combustion products derived from high-Ge coals

    Shifeng Dai;Vladimir V. Seredin;Colin R. Ward;Jianhua Jiang

  • Coal-derived unburned carbons in fly ash: A review

    James C. Hower;John G. Groppo;Uschi M. Graham;Colin R. Ward

  • Notes on Contributions to the Science of Rare Earth Element Enrichment in Coal and Coal Combustion Byproducts

    James C. Hower;Evan J. Granite;David B. Mayfield;Ari S. Lewis

Frequent Co-Authors

Shifeng Dai
Shifeng Dai China University of Mining and Technology
Cortland F. Eble
Cortland F. Eble University of Kentucky
Colin R. Ward
Colin R. Ward University of New South Wales
Luis F.O. Silva
Luis F.O. Silva University of Lima
Maria Mastalerz
Maria Mastalerz Indiana University
Heileen Hsu-Kim
Heileen Hsu-Kim Duke University
Mark A. Engle
Mark A. Engle The University of Texas at El Paso
Uschi M. Graham
Uschi M. Graham University of Kentucky
Jon S. Thorson
Jon S. Thorson University of Kentucky
Marcos L.S. Oliveira
Marcos L.S. Oliveira Universidade Federal de Santa Catarina

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