Clemens, J. D.
Stellenbosch University,
South Africa
2025 Rank: 21,175
Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:
Earth & Environmental Sciences
SubField 1:
Geochemistry & Geophysics
SubField 2:
Geology
Rank in SubField 1: 347 out of 103,460 Researchers
Data For The Year: 2025
| Metrics | Self-Citations Excluded | All |
|---|---|---|
| Rank Based on Composite Score | 21,175 | 19,878 |
| Total Cites | 9,205 | 10,415 |
| H-index | 42 | 45 |
| Hm-index | 24 | 27 |
| Number of Single Authored Papers | 30 | 30 |
| Total Cites to Single Authored Papers | 1,251 | 1,409 |
| Number of Single+First Authored Papers | 91 | 91 |
| Total Cites to Single+First Authored Papers | 5,697 | 6,530 |
| Number of Single+First+Last Authored Papers | 115 | 115 |
| Total Cites to Single+First+Last Authored Papers | 7,577 | 8,629 |
| Composite Score | 3 | 4 |
| Number of Distinct Citing Papers | 6,295 | 6,478 |
| Ratio of Total Citations to Distinct Citing Papers | 1.46 | 1.61 |
| Self-Citation Percentage |
11.62%
|
|
Clemens, J. D.
Stellenbosch University,
South Africa
2023 Rank: 21,251
Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:
Earth & Environmental Sciences
SubField 1:
Geochemistry & Geophysics
SubField 2:
Geology
Rank in SubField 1: 340 out of 92,230 Researchers
Data For The Year: 2023
| Metrics | Self-Citations Excluded | All |
|---|---|---|
| Rank Based on Composite Score | 21,251 | 20,345 |
| Total Cites | 7,875 | 8,893 |
| H-index | 41 | 43 |
| Hm-index | 23 | 26 |
| Number of Single Authored Papers | 25 | 25 |
| Total Cites to Single Authored Papers | 1,070 | 1,198 |
| Number of Single+First Authored Papers | 81 | 81 |
| Total Cites to Single+First Authored Papers | 4,861 | 5,535 |
| Number of Single+First+Last Authored Papers | 104 | 104 |
| Total Cites to Single+First+Last Authored Papers | 6,482 | 7,349 |
| Composite Score | 3 | 4 |
| Number of Distinct Citing Papers | 5,327 | 5,493 |
| Ratio of Total Citations to Distinct Citing Papers | 1.48 | 1.62 |
| Self-Citation Percentage |
11.45%
|
|
Clemens, J. D.
Stellenbosch University,
South Africa
2022 Rank: 22,267
Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:
Earth & Environmental Sciences
SubField 1:
Geochemistry & Geophysics
SubField 2:
Geology
Rank in SubField 1: 364 out of 87,916 Researchers
Data For The Year: 2022
| Metrics | Self-Citations Excluded | All |
|---|---|---|
| Rank Based on Composite Score | 22,267 | 21,073 |
| Total Cites | 7,318 | 8,257 |
| H-index | 39 | 41 |
| Hm-index | 21 | 24 |
| Number of Single Authored Papers | 23 | 23 |
| Total Cites to Single Authored Papers | 995 | 1,116 |
| Number of Single+First Authored Papers | 77 | 77 |
| Total Cites to Single+First Authored Papers | 4,450 | 5,067 |
| Number of Single+First+Last Authored Papers | 99 | 99 |
| Total Cites to Single+First+Last Authored Papers | 6,008 | 6,805 |
| Composite Score | 3 | 4 |
| Number of Distinct Citing Papers | 4,976 | 5,134 |
| Ratio of Total Citations to Distinct Citing Papers | 1.47 | 1.61 |
| Self-Citation Percentage |
11.37%
|
|
Clemens, J. D.
Stellenbosch University,
South Africa
2021 Rank: 21,025
Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:
Earth & Environmental Sciences
SubField 1:
Geochemistry & Geophysics
SubField 2:
Geology
Rank in SubField 1: 336 out of 81,218 Researchers
Data For The Year: 2021
| Metrics | Self-Citations Excluded | All |
|---|---|---|
| Rank Based on Composite Score | 21,025 | 21,087 |
| Total Cites | 7,041 | 7,959 |
| H-index | 39 | 41 |
| Hm-index | 22 | 23 |
| Number of Single Authored Papers | 23 | 23 |
| Total Cites to Single Authored Papers | 961 | 1,080 |
| Number of Single+First Authored Papers | 73 | 73 |
| Total Cites to Single+First Authored Papers | 4,286 | 4,888 |
| Number of Single+First+Last Authored Papers | 95 | 95 |
| Total Cites to Single+First+Last Authored Papers | 5,775 | 6,554 |
| Composite Score | 3 | 3 |
| Number of Distinct Citing Papers | 4,795 | 4,948 |
| Ratio of Total Citations to Distinct Citing Papers | 1.47 | 1.61 |
| Self-Citation Percentage |
11.53%
|
|
Clemens, J. D.
Stellenbosch University,
South Africa
2020 Rank: 22,186
Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:
Earth & Environmental Sciences
SubField 1:
Geochemistry & Geophysics
SubField 2:
Geology
Rank in SubField 1: 339 out of 70,197 Researchers
Data For The Year: 2020
| Metrics | Self-Citations Excluded | All |
|---|---|---|
| Rank Based on Composite Score | 22,186 | 22,131 |
| Total Cites | 6,200 | 7,014 |
| H-index | 37 | 39 |
| Hm-index | 21 | 23 |
| Number of Single Authored Papers | 22 | 22 |
| Total Cites to Single Authored Papers | 840 | 949 |
| Number of Single+First Authored Papers | 68 | 68 |
| Total Cites to Single+First Authored Papers | 3,714 | 4,239 |
| Number of Single+First+Last Authored Papers | 89 | 89 |
| Total Cites to Single+First+Last Authored Papers | 5,056 | 5,743 |
| Composite Score | 3 | 3 |
| Number of Distinct Citing Papers | 4,272 | 4,416 |
| Ratio of Total Citations to Distinct Citing Papers | 1.45 | 1.59 |
| Self-Citation Percentage |
11.61%
|
|
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