World's Best Scientists 2026 revealed!

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Earth Science 37 6823 6318 2393 2117 134 5455

Friedemann Freund publications per year

The chart shows the history of publications by Friedemann Freund between 1969 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Friedemann Freund published across 57 years, from 1969 to 2025, averaging 2.9 papers a year. Output peaked at 9 publications in 1991. 3 of the 168 publications appeared in the last two years.

No. of publications
2 4 6 8
Bar chart. Horizontal axis: year, 1969 to 2025. Vertical axis: number of publications, 0 to 9. Peak 9 publications in 1991. 1969: 1 publication 1970: 0 publications 1971: 0 publications 1972: 0 publications 1973: 0 publications 1974: 1 publication 1975: 0 publications 1976: 0 publications 1977: 1 publication 1978: 0 publications 1979: 0 publications 1980: 1 publication 1981: 4 publications 1982: 2 publications 1983: 0 publications 1984: 5 publications 1985: 1 publication 1986: 7 publications 1987: 3 publications 1988: 4 publications 1989: 1 publication 1990: 5 publications 1991: 9 publications 1992: 4 publications 1993: 5 publications 1994: 2 publications 1995: 1 publication 1996: 2 publications 1997: 0 publications 1998: 0 publications 1999: 1 publication 2000: 2 publications 2001: 5 publications 2002: 9 publications 2003: 4 publications 2004: 6 publications 2005: 3 publications 2006: 5 publications 2007: 5 publications 2008: 1 publication 2009: 4 publications 2010: 5 publications 2011: 5 publications 2012: 5 publications 2013: 7 publications 2014: 7 publications 2015: 7 publications 2016: 3 publications 2017: 1 publication 2018: 2 publications 2019: 5 publications 2020: 1 publication 2021: 8 publications 2022: 2 publications 2023: 3 publications 2024: 1 publication 2025: 2 publications
1969 2025

168 publications in total across all disciplines

View publications per year as a table
Friedemann Freund: publications per year, 1969 to 2025
Year Publications
1969 1
1970 0
1971 0
1972 0
1973 0
1974 1
1975 0
1976 0
1977 1
1978 0
1979 0
1980 1
1981 4
1982 2
1983 0
1984 5
1985 1
1986 7
1987 3
1988 4
1989 1
1990 5
1991 9
1992 4
1993 5
1994 2
1995 1
1996 2
1997 0
1998 0
1999 1
2000 2
2001 5
2002 9
2003 4
2004 6
2005 3
2006 5
2007 5
2008 1
2009 4
2010 5
2011 5
2012 5
2013 7
2014 7
2015 7
2016 3
2017 1
2018 2
2019 5
2020 1
2021 8
2022 2
2023 3
2024 1
2025 2
Total 168
Download as CSV

Friedemann Freund 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 Friedemann Freund 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, 128–137 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: 134 publications — 30th percentile

30% 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
128–137 557 134
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
568–577 7
578–587 14
588–597 5
598–602 4
603+ 100
Download as CSV

Friedemann Freund 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 Friedemann Freund 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, 37 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: 37 D-Index — 27th percentile

27% 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 37
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
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
Download as CSV

Overview

Friedemann Freund is affiliated with the Ames Research Center in the United States and has contributed extensively to the field of Earth and Planetary Sciences, focusing particularly on Geophysics. Their research spans multiple subfields, including Artificial Intelligence, Molecular Biology, Ocean Engineering, and Cancer Research.

The primary research themes covered by Freund encompass Earthquake Detection and Analysis, earthquake and tectonic studies, Seismic Waves and Analysis, Seismology and Earthquake Studies, RNA modifications and cancer, Geophysical Methods and Applications, and Geochemistry and Geologic Mapping.

Among Freund's recent publications are:

  • Mechanism of unipolar electromagnetic pulses emitted from the hypocenters of impending earthquakes, 2021, The European Physical Journal Special Topics

Freund frequently collaborates with other researchers, notably:

  • Mohammad Reza Mansouri Daneshvar
  • Viktor Štolc
  • Miloslav Karhánek
  • Yuri Griko
  • David J. Loftus

The primary venues for Freund's scholarly output include:

  • The European Physical Journal Special Topics
  • Sustainability
  • Antioxidants
  • Redox Biology
  • Arabian Journal of Geosciences

Their published works reflect interdisciplinary approaches combining geophysics with other scientific domains and address complex questions related to earthquake phenomena and related geophysical processes. Freund's work also incorporates emerging technologies such as artificial intelligence within their research scope.

Best Publications

  • Mid-infrared emission prior to strong earthquakes analyzed by remote sensing data

    D Ouzounov;F Freund;F Freund

  • Pre-earthquake signals: Underlying physical processes

    Friedemann Freund;Friedemann Freund;Friedemann Freund

  • Charge Generation and Propagation in Igneous Rocks

    Friedemann Freund;Friedemann Freund

  • Air ionization at rock surfaces and pre-earthquake signals

    Friedemann T. Freund;Friedemann T. Freund;Friedemann T. Freund;Ipek G. Kulahci;Gary Cyr;Julia Ling;Julia Ling

  • Electric currents streaming out of stressed igneous rocks - A step towards understanding pre-earthquake low frequency EM emissions

    Friedemann T. Freund;Friedemann T. Freund;Akihiro Takeuchi;Akihiro Takeuchi;Bobby W.S. Lau

  • Time-resolved study of charge generation and propagation in igneous rocks

    Friedemann Freund

  • Clathrate hydrate formation in amorphous cometary ice analogs in vacuo

    David Blake;Louis Allamandola;Scott Sandford;Doug Hudgins

  • Toward a unified solid state theory for pre-earthquake signals

    Friedemann Freund;Friedemann Freund;Friedemann Freund

  • Rocks That Crackle and Sparkle and Glow: Strange Pre-Earthquake Phenomena

    Friedemann T. Freund

  • Current and surface potential induced by stress-activated positive holes in igneous rocks

    Akihiro Takeuchi;Akihiro Takeuchi;Bobby W.S. Lau;Friedemann T. Freund;Friedemann T. Freund

  • Earthquake forewarning — A multidisciplinary challenge from the ground up to space

    Friedemann Freund;Friedemann Freund;Friedemann Freund

  • Ground Water Chemistry Changes before Major Earthquakes and Possible Effects on Animals

    Rachel A. Grant;Tim Halliday;Werner P. Balderer;Fanny Leuenberger

  • Surface charges and subsurface space-charge distribution in magnesium oxides containing dissolved traces of water

    Bruce V. King;Friedemann Freund

  • Investigation of ULF magnetic pulsations, air conductivity changes, and infra red signatures associated with the 30 October Alum Rock M5.4 earthquake

    T. Bleier;C. Dunson;M. Maniscalco;N. Bryant

  • Earthquake lights and the stress-activation of positive hole charge carriers in rocks

    John S. Derr;Friedemann T. Freund;Friedemann T. Freund

  • Oxidation of water to hydrogen peroxide at the rock–water interface due to stress-activated electric currents in rocks

    Melike Balk;Milton Bose;Gözen Ertem;Dana A. Rogoff

  • The nature and origin of interstellar diamond.

    David F. Blake;Friedemann Freund;Kannan F. M. Krishnan;Charles J. Echer

  • Pre-earthquake signals – Part I: Deviatoric stresses turn rocks into a source of electric currents

    F. T. Freund;F. T. Freund;F. T. Freund

  • Water dissolved in olivine: A single‐crystal infrared study

    Friedemann Freund;Gert Oberheuser

  • On the electrical conductivity structure of the stable continental crust

    Friedemann Freund

  • Stimulated infrared emission from rocks: assessing a stress indicator

    F. T. Freund;F. T. Freund;A. Takeuchi;A. Takeuchi;B. W. S. Lau;A. Al-Manaseer

Frequent Co-Authors

David F. Blake
David F. Blake Ames Research Center
David Blake
David Blake City, University of London
Ted E. Bunch
Ted E. Bunch Northern Arizona University
Si-Chee Tsay
Si-Chee Tsay Goddard Space Flight Center
Kannan M. Krishnan
Kannan M. Krishnan University of Washington
Dale P. Cruikshank
Dale P. Cruikshank University of Central Florida
Louis J. Allamandola
Louis J. Allamandola Ames Research Center
Hauke Smidt
Hauke Smidt Wageningen University & Research

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Related Online Degrees & Career Pathways

Studying Earth Science opens doors to diverse career paths, many of which benefit from interdisciplinary skills. For those interested in managing and organizing information related to environmental data, exploring an ala accredited schools offering online degrees in library and information science can be a great step. These programs equip students with expertise in data curation and digital archiving, essential for research institutions and government agencies.

Additionally, a library degree offers practical skills in managing scientific literature and resources, vital for science librarianship roles supporting Earth Science research.

Visual documentation and analysis are critical in Earth Science, making digital photography skills highly valuable. Pursuing photography degrees online provides training in capturing and interpreting environmental visuals, enhancing one's ability to communicate scientific findings effectively.

Veterans interested in combining their technical background with creative skills may find specific support through online photography bachelor degree for veterans programs, which cater to their unique needs while preparing them for impactful careers in environmental documentation and beyond.

Best Scientists Citing Friedemann Freund

Trending Scientists

Recently Published Articles