| Discipline name | D-Index | World Ranking | Current World Ranking | National Ranking | Current National Ranking | Publications | Citations |
|---|---|---|---|---|---|---|---|
| Earth Science | 82 | 478 | 413 | 5 | 4 | 339 | 19647 |
The chart shows the history of publications by Robert Frei between 1992 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Robert Frei published across 34 years, from 1992 to 2025, averaging 11.1 papers a year. Output peaked at 28 publications in 2019. 21 of the 376 publications appeared in the last two years.
376 publications in total across all disciplines
| Year | Publications |
|---|---|
| 1992 | 2 |
| 1993 | 1 |
| 1994 | 2 |
| 1995 | 5 |
| 1996 | 8 |
| 1997 | 10 |
| 1998 | 10 |
| 1999 | 8 |
| 2000 | 2 |
| 2001 | 11 |
| 2002 | 13 |
| 2003 | 8 |
| 2004 | 11 |
| 2005 | 6 |
| 2006 | 12 |
| 2007 | 7 |
| 2008 | 10 |
| 2009 | 16 |
| 2010 | 9 |
| 2011 | 7 |
| 2012 | 9 |
| 2013 | 13 |
| 2014 | 12 |
| 2015 | 12 |
| 2016 | 19 |
| 2017 | 15 |
| 2018 | 21 |
| 2019 | 28 |
| 2020 | 19 |
| 2021 | 22 |
| 2022 | 17 |
| 2023 | 10 |
| 2024 | 11 |
| 2025 | 10 |
| Total | 376 |
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 Robert Frei sits on this spectrum.
This scientist: 339 publications — 91st percentile
91% of scientists in this discipline score the same or lower.
The last bar groups every scientist with 603 publications or more.
| 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 | 339 |
| 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 | |
| 568–577 | 7 | |
| 578–587 | 14 | |
| 588–597 | 5 | |
| 598–602 | 4 | |
| 603+ | 100 |
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 Robert Frei sits on this spectrum.
This scientist: 82 D-Index — 95th percentile
95% of scientists in this discipline score the same or lower.
The last bar groups every scientist with 106 D-Index or more.
| 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 | 82 |
| 83 | 34 | |
| 84 | 24 | |
| 85 | 19 | |
| 86 | 18 | |
| 87 | 26 | |
| 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 |
Robert Frei is affiliated with the University of Copenhagen in Denmark and has focused their research primarily within the Earth and Planetary Sciences, publishing extensively across various subfields. Their work spans paleontology, geochemistry and petrology, geophysics, atmospheric science, and ecology, reflecting a broad engagement with the natural sciences relating to the Earth's physical processes and history.
Their research topics include geochemistry and elemental analysis, paleontology and stratigraphy of fossils, geological and geochemical analysis, geology and paleoclimatology research, isotope analysis in ecology, archaeology, and ancient environmental studies, as well as geochemistry and geologic mapping. These areas highlight an interdisciplinary approach combining geological, chemical, and ecological perspectives to study the Earth's environments and past climates.
Frei has contributed to multiple frequent publication venues, which include:
Notable recent papers authored or co-authored by Robert Frei include:
The researcher often collaborates with a range of co-authors, including Karin Margarita Frei, Anja B. Frank, Claudio Gaucher, Jesper Allan Frederiksen, and Robert Klaebe. These frequent collaborations indicate a networked approach to their scientific inquiry, contributing to diverse multi-author studies.
W. Shotyk;D. Weiss;P. G. Appleby;A. K. Cheburkin
Robert Frei;Claudio Gaucher;Simon W. Poulton;Don E. Canfield
Sean Andrew Crowe;Lasse N. Døssing;Lasse N. Døssing;Nicolas J. Beukes;Michael Bau
W. Shotyk;D. Weiss;J.D. Kramers;R. Frei
J. J. Mahoney;R. Frei;M. L. G. Tejada;X. X. Mo
Minik T. Rosing;Robert Frei
Gry H Barfod;Francis Albarède;Andrew H Knoll;Shuhai Xiao
Karin Margarita Frei;Ulla Mannering;Kristian Kristiansen;Morten E. Allentoft
W. Shotyk;Michael Evan Goodsite;F. Roos-Barraclough;R. Frei
Karin M. Frei;Robert Frei
L. Holzer;R. Frei;J.M. Barton;J.D. Kramers
Robert Frei;Ali Polat
G.J. Gilleaudeau;R. Frei;A.J. Kaufman;L.C. Kah
Donald E. Canfield;Shuichang Zhang;Anja B. Frank;Xiaomei Wang
Sisir K. Mondal;Edward M. Ripley;Chusi Li;Robert Frei
Christian M. Ø. Rasmussen;Clemens V. Ullmann;Kristian G. Jakobsen;Anders Lindskog
F. Gervilla;J.A. Proenza;R. Frei;J.M. González-Jiménez
Pedro Oyhantçabal;Siegfried Siegesmund;Klaus Wemmer;Robert Frei
L.N. Døssing;K. Dideriksen;S.L.S. Stipp;R. Frei
Tais Wittchen Dahl;Ariel Anbar;Gwyneth Gordon;Minik Rosing
Robert Frei;Balz S. Kamber
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