Kopf, Achim J.
MARUM – Zentrum für Marine Umweltwissenschaften,
Germany
2025 Rank: 62340
Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:
Earth & Environmental Sciences
SubField 1:
Geochemistry & Geophysics
SubField 2:
Oceanography
Rank in SubField 1: 1080 out of 103460 Researchers
Data For The Year: 2025
| Metrics | Self-Citations Excluded | All |
|---|---|---|
| Rank Based on Composite Score | 62340 | 53247 |
| Total Cites | 4815 | 6403 |
| H-index | 37 | 44 |
| Hm-index | 19 | 22 |
| Number of Single Authored Papers | 9 | 9 |
| Total Cites to Single Authored Papers | 851 | 897 |
| Number of Single+First Authored Papers | 33 | 33 |
| Total Cites to Single+First Authored Papers | 1525 | 1715 |
| Number of Single+First+Last Authored Papers | 127 | 127 |
| Total Cites to Single+First+Last Authored Papers | 3036 | 3870 |
| Composite Score | 3 | 3 |
| Number of Distinct Citing Papers | 3533 | 4163 |
| Ratio of Total Citations to Distinct Citing Papers | 1.36 | 1.54 |
| Self-Citation Percentage |
24.80%
|
|
Kopf, Achim J.
Universität Bremen,
Germany
2024 Rank: 63657
Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:
Earth & Environmental Sciences
SubField 1:
Geochemistry & Geophysics
SubField 2:
Oceanography
Rank in SubField 1: 1097 out of 98126 Researchers
Data For The Year: 2024
| Metrics | Self-Citations Excluded | All |
|---|---|---|
| Rank Based on Composite Score | 63657 | 54855 |
| Total Cites | 4436 | 5970 |
| H-index | 35 | 41 |
| Hm-index | 18 | 21 |
| Number of Single Authored Papers | 9 | 9 |
| Total Cites to Single Authored Papers | 805 | 851 |
| Number of Single+First Authored Papers | 32 | 32 |
| Total Cites to Single+First Authored Papers | 1446 | 1635 |
| Number of Single+First+Last Authored Papers | 125 | 125 |
| Total Cites to Single+First+Last Authored Papers | 2794 | 3607 |
| Composite Score | 3 | 3 |
| Number of Distinct Citing Papers | 3244 | 3851 |
| Ratio of Total Citations to Distinct Citing Papers | 1.37 | 1.55 |
| Self-Citation Percentage |
25.70%
|
|
Kopf, Achim J.
Universität Bremen,
Germany
2023 Rank: 64952
Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:
Earth & Environmental Sciences
SubField 1:
Geochemistry & Geophysics
SubField 2:
Oceanography
Rank in SubField 1: 1116 out of 92230 Researchers
Data For The Year: 2023
| Metrics | Self-Citations Excluded | All |
|---|---|---|
| Rank Based on Composite Score | 64952 | 56072 |
| Total Cites | 3989 | 5468 |
| H-index | 34 | 40 |
| Hm-index | 17 | 20 |
| Number of Single Authored Papers | 9 | 9 |
| Total Cites to Single Authored Papers | 753 | 798 |
| Number of Single+First Authored Papers | 32 | 32 |
| Total Cites to Single+First Authored Papers | 1360 | 1544 |
| Number of Single+First+Last Authored Papers | 124 | 124 |
| Total Cites to Single+First+Last Authored Papers | 2536 | 3315 |
| Composite Score | 3 | 3 |
| Number of Distinct Citing Papers | 2943 | 3534 |
| Ratio of Total Citations to Distinct Citing Papers | 1.36 | 1.55 |
| Self-Citation Percentage |
27.05%
|
|
Kopf, Achim J.
MARUM – Zentrum für Marine Umweltwissenschaften,
Germany
2022 Rank: 66728
Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:
Earth & Environmental Sciences
SubField 1:
Geochemistry & Geophysics
SubField 2:
Oceanography
Rank in SubField 1: 1171 out of 87916 Researchers
Data For The Year: 2022
| Metrics | Self-Citations Excluded | All |
|---|---|---|
| Rank Based on Composite Score | 66728 | 58906 |
| Total Cites | 3534 | 4743 |
| H-index | 32 | 36 |
| Hm-index | 16 | 19 |
| Number of Single Authored Papers | 8 | 8 |
| Total Cites to Single Authored Papers | 711 | 749 |
| Number of Single+First Authored Papers | 30 | 30 |
| Total Cites to Single+First Authored Papers | 1292 | 1450 |
| Number of Single+First+Last Authored Papers | 107 | 107 |
| Total Cites to Single+First+Last Authored Papers | 2296 | 2938 |
| Composite Score | 3 | 3 |
| Number of Distinct Citing Papers | 2590 | 3097 |
| Ratio of Total Citations to Distinct Citing Papers | 1.36 | 1.53 |
| Self-Citation Percentage |
25.49%
|
|
Kopf, Achim J.
MARUM – Zentrum für Marine Umweltwissenschaften,
Germany
2021 Rank: 68252
Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:
Earth & Environmental Sciences
SubField 1:
Geochemistry & Geophysics
SubField 2:
Oceanography
Rank in SubField 1: 1187 out of 81218 Researchers
Data For The Year: 2021
| Metrics | Self-Citations Excluded | All |
|---|---|---|
| Rank Based on Composite Score | 68252 | 58944 |
| Total Cites | 3342 | 4481 |
| H-index | 31 | 36 |
| Hm-index | 15 | 19 |
| Number of Single Authored Papers | 8 | 8 |
| Total Cites to Single Authored Papers | 676 | 713 |
| Number of Single+First Authored Papers | 30 | 30 |
| Total Cites to Single+First Authored Papers | 1231 | 1385 |
| Number of Single+First+Last Authored Papers | 106 | 106 |
| Total Cites to Single+First+Last Authored Papers | 2176 | 2780 |
| Composite Score | 3 | 3 |
| Number of Distinct Citing Papers | 2464 | 2944 |
| Ratio of Total Citations to Distinct Citing Papers | 1.36 | 1.52 |
| Self-Citation Percentage |
25.42%
|
|
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