Zimmermann, Ralf
Helmholtz Center Munich German Research Center for Environmental Health,
Germany
2025 Rank: 70,306
Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:
Chemistry
SubField 1:
Analytical Chemistry
SubField 2:
Meteorology & Atmospheric Sciences
Rank in SubField 1: 477 out of 129,614 Researchers
Data For The Year: 2025
| Metrics | Self-Citations Excluded | All |
|---|---|---|
| Rank Based on Composite Score | 70,306 | 50,870 |
| Total Cites | 15,154 | 20,010 |
| H-index | 56 | 67 |
| Hm-index | 25 | 29 |
| Number of Single Authored Papers | 6 | 6 |
| Total Cites to Single Authored Papers | 51 | 72 |
| Number of Single+First Authored Papers | 35 | 35 |
| Total Cites to Single+First Authored Papers | 637 | 963 |
| Number of Single+First+Last Authored Papers | 310 | 310 |
| Total Cites to Single+First+Last Authored Papers | 5,860 | 8,474 |
| Composite Score | 3 | 3 |
| Number of Distinct Citing Papers | 12,006 | 13,609 |
| Ratio of Total Citations to Distinct Citing Papers | 1.26 | 1.47 |
| Self-Citation Percentage |
24.27%
|
|
Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:
Chemistry
SubField 1:
Analytical Chemistry
SubField 2:
Meteorology & Atmospheric Sciences
Rank in SubField 1: 484 out of 122,576 Researchers
Data For The Year: 2024
| Metrics | Self-Citations Excluded | All |
|---|---|---|
| Rank Based on Composite Score | 71,870 | 53,114 |
| Total Cites | 13,588 | 17,909 |
| H-index | 53 | 64 |
| Hm-index | 24 | 27 |
| Number of Single Authored Papers | 5 | 5 |
| Total Cites to Single Authored Papers | 47 | 67 |
| Number of Single+First Authored Papers | 32 | 32 |
| Total Cites to Single+First Authored Papers | 616 | 924 |
| Number of Single+First+Last Authored Papers | 286 | 286 |
| Total Cites to Single+First+Last Authored Papers | 5,355 | 7,675 |
| Composite Score | 3 | 3 |
| Number of Distinct Citing Papers | 10,722 | 12,209 |
| Ratio of Total Citations to Distinct Citing Papers | 1.27 | 1.47 |
| Self-Citation Percentage |
24.13%
|
|
Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:
Chemistry
SubField 1:
Analytical Chemistry
SubField 2:
Meteorology & Atmospheric Sciences
Rank in SubField 1: 455 out of 107,126 Researchers
Data For The Year: 2022
| Metrics | Self-Citations Excluded | All |
|---|---|---|
| Rank Based on Composite Score | 66,929 | 45,882 |
| Total Cites | 11,260 | 15,843 |
| H-index | 48 | 60 |
| Hm-index | 21 | 25 |
| Number of Single Authored Papers | 8 | 8 |
| Total Cites to Single Authored Papers | 54 | 75 |
| Number of Single+First Authored Papers | 39 | 39 |
| Total Cites to Single+First Authored Papers | 622 | 942 |
| Number of Single+First+Last Authored Papers | 285 | 285 |
| Total Cites to Single+First+Last Authored Papers | 4,750 | 7,553 |
| Composite Score | 3 | 3 |
| Number of Distinct Citing Papers | 8,812 | 10,556 |
| Ratio of Total Citations to Distinct Citing Papers | 1.28 | 1.50 |
| Self-Citation Percentage |
28.93%
|
|
Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:
Chemistry
SubField 1:
Analytical Chemistry
SubField 2:
Environmental Sciences
Rank in SubField 1: 485 out of 102,767 Researchers
Data For The Year: 2021
| Metrics | Self-Citations Excluded | All |
|---|---|---|
| Rank Based on Composite Score | 70,407 | 51,542 |
| Total Cites | 10,013 | 13,379 |
| H-index | 45 | 55 |
| Hm-index | 21 | 24 |
| Number of Single Authored Papers | 7 | 7 |
| Total Cites to Single Authored Papers | 54 | 74 |
| Number of Single+First Authored Papers | 35 | 35 |
| Total Cites to Single+First Authored Papers | 571 | 871 |
| Number of Single+First+Last Authored Papers | 239 | 239 |
| Total Cites to Single+First+Last Authored Papers | 4,250 | 6,112 |
| Composite Score | 3 | 3 |
| Number of Distinct Citing Papers | 7,771 | 8,927 |
| Ratio of Total Citations to Distinct Citing Papers | 1.29 | 1.50 |
| Self-Citation Percentage |
25.16%
|
|
Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:
Chemistry
SubField 1:
Analytical Chemistry
SubField 2:
Environmental Sciences
Rank in SubField 1: 559 out of 87,137 Researchers
Data For The Year: 2020
| Metrics | Self-Citations Excluded | All |
|---|---|---|
| Rank Based on Composite Score | 74,798 | 55,245 |
| Total Cites | 8,195 | 11,128 |
| H-index | 41 | 50 |
| Hm-index | 19 | 23 |
| Number of Single Authored Papers | 7 | 7 |
| Total Cites to Single Authored Papers | 48 | 65 |
| Number of Single+First Authored Papers | 36 | 36 |
| Total Cites to Single+First Authored Papers | 544 | 837 |
| Number of Single+First+Last Authored Papers | 229 | 229 |
| Total Cites to Single+First+Last Authored Papers | 3,725 | 5,378 |
| Composite Score | 3 | 3 |
| Number of Distinct Citing Papers | 6,258 | 7,268 |
| Ratio of Total Citations to Distinct Citing Papers | 1.31 | 1.53 |
| Self-Citation Percentage |
26.36%
|
|
Related Profiles
Top 2% Scientists by Country
236,132 scientists from 167 countries on the 2025 single-year list.
Germany10,666 scientists, 4th in the world
Featured Profiles
Partner with TOPSCINET
Reach science enthusiasts and researchers across the site. Write to business@topscinet.com and our marketing team will send a proposal built around your banner ad goals.