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D-Index & Metrics

Earth Science

D-Index
37
Citations
5455
World Ranking
6823
National Ranking
2393

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.

38–42 publications: 1 scientists 43–47 publications: 0 scientists 48–52 publications: 3 scientists 53–57 publications: 8 scientists 58–62 publications: 11 scientists 63–67 publications: 16 scientists 68–72 publications: 24 scientists 73–77 publications: 31 scientists 78–82 publications: 49 scientists 83–87 publications: 77 scientists 88–92 publications: 86 scientists 93–97 publications: 88 scientists 98–102 publications: 92 scientists 103–107 publications: 84 scientists 108–112 publications: 102 scientists 113–117 publications: 108 scientists 118–122 publications: 117 scientists 123–127 publications: 126 scientists 128–132 publications: 146 scientists 133–137 publications: 114 scientists 138–142 publications: 102 scientists 143–147 publications: 127 scientists 148–152 publications: 102 scientists 153–157 publications: 112 scientists 158–162 publications: 102 scientists 163–167 publications: 127 scientists 168–172 publications: 121 scientists 173–177 publications: 112 scientists 178–182 publications: 109 scientists 183–187 publications: 98 scientists 188–192 publications: 92 scientists 193–197 publications: 105 scientists 198–202 publications: 77 scientists 203–207 publications: 80 scientists 208–212 publications: 89 scientists 213–217 publications: 70 scientists 218–222 publications: 74 scientists 223–227 publications: 74 scientists 228–232 publications: 70 scientists 233–237 publications: 67 scientists 238–242 publications: 59 scientists 243–247 publications: 67 scientists 248–252 publications: 51 scientists 253–257 publications: 46 scientists 258–262 publications: 41 scientists 263–267 publications: 39 scientists 268–272 publications: 34 scientists 273–277 publications: 39 scientists 278–282 publications: 35 scientists 283–287 publications: 36 scientists 288–292 publications: 35 scientists 293–297 publications: 29 scientists 298–302 publications: 23 scientists 303–307 publications: 39 scientists 308–312 publications: 34 scientists 313–317 publications: 23 scientists 318–322 publications: 18 scientists 323–327 publications: 18 scientists 328–332 publications: 21 scientists 333–337 publications: 20 scientists 338–342 publications: 15 scientists 343–347 publications: 13 scientists 348–352 publications: 24 scientists 353–357 publications: 25 scientists 358–362 publications: 10 scientists 363–367 publications: 20 scientists 368–372 publications: 17 scientists 373–377 publications: 18 scientists 378–382 publications: 15 scientists 383–387 publications: 7 scientists 388–392 publications: 22 scientists 393–397 publications: 9 scientists 398–402 publications: 11 scientists 403–407 publications: 16 scientists 408–412 publications: 4 scientists 413–417 publications: 5 scientists 418–422 publications: 14 scientists 423–427 publications: 8 scientists 428–432 publications: 7 scientists 433–437 publications: 7 scientists 438–442 publications: 10 scientists 443–447 publications: 10 scientists 448–452 publications: 3 scientists 453–457 publications: 9 scientists 458–462 publications: 11 scientists 463–467 publications: 4 scientists 468–472 publications: 6 scientists 473–477 publications: 11 scientists 478–482 publications: 8 scientists 483–487 publications: 2 scientists 488–492 publications: 3 scientists 493–497 publications: 4 scientists 498–502 publications: 4 scientists 503–507 publications: 4 scientists 508–509 publications: 4 scientists 510+ publications: 100 scientists
38 publications 510+

This scientist: 134 publications — 28th percentile

28% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 510 publications or more.

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.

30 D-Index: 15 scientists 31 D-Index: 42 scientists 32 D-Index: 60 scientists 33 D-Index: 90 scientists 34 D-Index: 103 scientists 35 D-Index: 108 scientists 36 D-Index: 142 scientists 37 D-Index: 147 scientists 38 D-Index: 147 scientists 39 D-Index: 152 scientists 40 D-Index: 143 scientists 41 D-Index: 157 scientists 42 D-Index: 141 scientists 43 D-Index: 151 scientists 44 D-Index: 140 scientists 45 D-Index: 135 scientists 46 D-Index: 121 scientists 47 D-Index: 108 scientists 48 D-Index: 128 scientists 49 D-Index: 111 scientists 50 D-Index: 106 scientists 51 D-Index: 112 scientists 52 D-Index: 102 scientists 53 D-Index: 103 scientists 54 D-Index: 94 scientists 55 D-Index: 61 scientists 56 D-Index: 101 scientists 57 D-Index: 71 scientists 58 D-Index: 65 scientists 59 D-Index: 78 scientists 60 D-Index: 93 scientists 61 D-Index: 56 scientists 62 D-Index: 58 scientists 63 D-Index: 52 scientists 64 D-Index: 63 scientists 65 D-Index: 49 scientists 66 D-Index: 53 scientists 67 D-Index: 57 scientists 68 D-Index: 50 scientists 69 D-Index: 44 scientists 70 D-Index: 44 scientists 71 D-Index: 31 scientists 72 D-Index: 33 scientists 73 D-Index: 33 scientists 74 D-Index: 23 scientists 75 D-Index: 32 scientists 76 D-Index: 24 scientists 77 D-Index: 17 scientists 78 D-Index: 19 scientists 79 D-Index: 9 scientists 80 D-Index: 21 scientists 81 D-Index: 20 scientists 82 D-Index: 17 scientists 83 D-Index: 19 scientists 84 D-Index: 19 scientists 85 D-Index: 14 scientists 86 D-Index: 6 scientists 87 D-Index: 14 scientists 88 D-Index: 17 scientists 89 D-Index: 10 scientists 90 D-Index: 8 scientists 91 D-Index: 8 scientists 92 D-Index: 9 scientists 93 D-Index: 6 scientists 94+ D-Index: 98 scientists
30 D-Index 94+

This scientist: 37 D-Index — 16th percentile

16% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 94 D-Index or more.

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

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