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Umran S. Inan

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Physics 89 2335 2222 1172 1094 569 25848

Umran S. Inan publications per year

The chart shows the history of publications by Umran S. Inan between 1977 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Umran S. Inan published across 49 years, from 1977 to 2025, averaging 12.2 papers a year. Output peaked at 55 publications in 2010. 1 of the 598 publications appeared in the last two years.

No. of publications
10 20 30 40 50
Bar chart. Horizontal axis: year, 1977 to 2025. Vertical axis: number of publications, 0 to 55. Peak 55 publications in 2010. 1977: 5 publications 1978: 2 publications 1979: 0 publications 1980: 1 publication 1981: 6 publications 1982: 6 publications 1983: 9 publications 1984: 8 publications 1985: 13 publications 1986: 7 publications 1987: 5 publications 1988: 7 publications 1989: 3 publications 1990: 15 publications 1991: 7 publications 1992: 13 publications 1993: 11 publications 1994: 8 publications 1995: 8 publications 1996: 16 publications 1997: 12 publications 1998: 15 publications 1999: 11 publications 2000: 14 publications 2001: 16 publications 2002: 23 publications 2003: 17 publications 2004: 22 publications 2005: 21 publications 2006: 27 publications 2007: 21 publications 2008: 29 publications 2009: 29 publications 2010: 55 publications 2011: 50 publications 2012: 22 publications 2013: 11 publications 2014: 19 publications 2015: 11 publications 2016: 3 publications 2017: 1 publication 2018: 1 publication 2019: 2 publications 2020: 1 publication 2021: 2 publications 2022: 7 publications 2023: 5 publications 2024: 0 publications 2025: 1 publication
1977 2025

598 publications in total across all disciplines

View publications per year as a table
Umran S. Inan: publications per year, 1977 to 2025
Year Publications
1977 5
1978 2
1979 0
1980 1
1981 6
1982 6
1983 9
1984 8
1985 13
1986 7
1987 5
1988 7
1989 3
1990 15
1991 7
1992 13
1993 11
1994 8
1995 8
1996 16
1997 12
1998 15
1999 11
2000 14
2001 16
2002 23
2003 17
2004 22
2005 21
2006 27
2007 21
2008 29
2009 29
2010 55
2011 50
2012 22
2013 11
2014 19
2015 11
2016 3
2017 1
2018 1
2019 2
2020 1
2021 2
2022 7
2023 5
2024 0
2025 1
Total 598
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Umran S. Inan publication distribution in Physics in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Physics in 2026. The highlighted bar marks where Umran S. Inan sits on this spectrum.

No. of scientists
50 100 150
Bar chart with 70 bars. Horizontal axis: publications, 103–122 to 1,469+. Vertical axis: number of scientists, 0 to 162. Most scientists, 162, have 323–342 publications. The last bar groups every scientist with 1,469 publications or more. The highlighted bar, 563–582 publications, is where this scientist sits. 103–122 publications: 7 scientists 123–142 publications: 10 scientists 143–162 publications: 31 scientists 163–182 publications: 35 scientists 183–202 publications: 53 scientists 203–222 publications: 81 scientists 223–242 publications: 85 scientists 243–262 publications: 112 scientists 263–282 publications: 114 scientists 283–302 publications: 126 scientists 303–322 publications: 136 scientists 323–342 publications: 162 scientists 343–362 publications: 155 scientists 363–382 publications: 156 scientists 383–402 publications: 134 scientists 403–422 publications: 145 scientists 423–442 publications: 147 scientists 443–462 publications: 131 scientists 463–482 publications: 131 scientists 483–502 publications: 116 scientists 503–522 publications: 106 scientists 523–542 publications: 103 scientists 543–562 publications: 87 scientists 563–582 publications: 84 scientists 583–602 publications: 94 scientists 603–622 publications: 70 scientists 623–642 publications: 76 scientists 643–662 publications: 60 scientists 663–682 publications: 54 scientists 683–702 publications: 60 scientists 703–722 publications: 48 scientists 723–742 publications: 64 scientists 743–762 publications: 48 scientists 763–782 publications: 37 scientists 783–802 publications: 43 scientists 803–822 publications: 34 scientists 823–842 publications: 36 scientists 843–862 publications: 32 scientists 863–882 publications: 32 scientists 883–902 publications: 31 scientists 903–922 publications: 25 scientists 923–942 publications: 15 scientists 943–962 publications: 24 scientists 963–982 publications: 13 scientists 983–1,002 publications: 21 scientists 1,003–1,022 publications: 21 scientists 1,023–1,042 publications: 16 scientists 1,043–1,062 publications: 9 scientists 1,063–1,082 publications: 19 scientists 1,083–1,102 publications: 11 scientists 1,103–1,122 publications: 17 scientists 1,123–1,142 publications: 11 scientists 1,143–1,162 publications: 7 scientists 1,163–1,182 publications: 4 scientists 1,183–1,202 publications: 10 scientists 1,203–1,222 publications: 8 scientists 1,223–1,242 publications: 16 scientists 1,243–1,262 publications: 4 scientists 1,263–1,282 publications: 10 scientists 1,283–1,302 publications: 5 scientists 1,303–1,322 publications: 7 scientists 1,323–1,342 publications: 4 scientists 1,343–1,362 publications: 8 scientists 1,363–1,382 publications: 6 scientists 1,383–1,402 publications: 7 scientists 1,403–1,422 publications: 3 scientists 1,423–1,442 publications: 4 scientists 1,443–1,462 publications: 4 scientists 1,463–1,468 publications: 3 scientists 1,469+ publications: 100 scientists
103–122 publications 1,469+

This scientist: 569 publications — 65th percentile

65% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,469 publications or more.

View publications distribution as a table
Number of Physics scientists by publication count, Research.com 2026 ranking edition. Based on 3,678 ranked scientists.
Publications Scientists This scientist
103–122 7
123–142 10
143–162 31
163–182 35
183–202 53
203–222 81
223–242 85
243–262 112
263–282 114
283–302 126
303–322 136
323–342 162
343–362 155
363–382 156
383–402 134
403–422 145
423–442 147
443–462 131
463–482 131
483–502 116
503–522 106
523–542 103
543–562 87
563–582 84 569
583–602 94
603–622 70
623–642 76
643–662 60
663–682 54
683–702 60
703–722 48
723–742 64
743–762 48
763–782 37
783–802 43
803–822 34
823–842 36
843–862 32
863–882 32
883–902 31
903–922 25
923–942 15
943–962 24
963–982 13
983–1,002 21
1,003–1,022 21
1,023–1,042 16
1,043–1,062 9
1,063–1,082 19
1,083–1,102 11
1,103–1,122 17
1,123–1,142 11
1,143–1,162 7
1,163–1,182 4
1,183–1,202 10
1,203–1,222 8
1,223–1,242 16
1,243–1,262 4
1,263–1,282 10
1,283–1,302 5
1,303–1,322 7
1,323–1,342 4
1,343–1,362 8
1,363–1,382 6
1,383–1,402 7
1,403–1,422 3
1,423–1,442 4
1,443–1,462 4
1,463–1,468 3
1,469+ 100
Download as CSV

Umran S. Inan D-index placement in Physics in 2026

The chart shows the D-index (discipline H-index) distribution of Physics scientists ranked by Research.com in 2026. The highlighted bar marks where Umran S. Inan sits on this spectrum.

No. of scientists
50 100 150
Bar chart with 59 bars. Horizontal axis: D-Index, 70–71 to 185+. Vertical axis: number of scientists, 0 to 167. Most scientists, 167, have 80–81 D-Index. The last bar groups every scientist with 185 D-Index or more. The highlighted bar, 88–89 D-Index, is where this scientist sits. 70–71 D-Index: 76 scientists 72–73 D-Index: 110 scientists 74–75 D-Index: 143 scientists 76–77 D-Index: 153 scientists 78–79 D-Index: 144 scientists 80–81 D-Index: 167 scientists 82–83 D-Index: 167 scientists 84–85 D-Index: 166 scientists 86–87 D-Index: 132 scientists 88–89 D-Index: 155 scientists 90–91 D-Index: 134 scientists 92–93 D-Index: 137 scientists 94–95 D-Index: 102 scientists 96–97 D-Index: 112 scientists 98–99 D-Index: 110 scientists 100–101 D-Index: 116 scientists 102–103 D-Index: 97 scientists 104–105 D-Index: 103 scientists 106–107 D-Index: 87 scientists 108–109 D-Index: 90 scientists 110–111 D-Index: 67 scientists 112–113 D-Index: 78 scientists 114–115 D-Index: 75 scientists 116–117 D-Index: 67 scientists 118–119 D-Index: 69 scientists 120–121 D-Index: 60 scientists 122–123 D-Index: 59 scientists 124–125 D-Index: 53 scientists 126–127 D-Index: 42 scientists 128–129 D-Index: 41 scientists 130–131 D-Index: 33 scientists 132–133 D-Index: 32 scientists 134–135 D-Index: 45 scientists 136–137 D-Index: 19 scientists 138–139 D-Index: 24 scientists 140–141 D-Index: 28 scientists 142–143 D-Index: 31 scientists 144–145 D-Index: 22 scientists 146–147 D-Index: 20 scientists 148–149 D-Index: 12 scientists 150–151 D-Index: 16 scientists 152–153 D-Index: 24 scientists 154–155 D-Index: 23 scientists 156–157 D-Index: 15 scientists 158–159 D-Index: 15 scientists 160–161 D-Index: 11 scientists 162–163 D-Index: 17 scientists 164–165 D-Index: 12 scientists 166–167 D-Index: 11 scientists 168–169 D-Index: 9 scientists 170–171 D-Index: 9 scientists 172–173 D-Index: 11 scientists 174–175 D-Index: 4 scientists 176–177 D-Index: 8 scientists 178–179 D-Index: 5 scientists 180–181 D-Index: 3 scientists 182–183 D-Index: 4 scientists 184 D-Index: 4 scientists 185+ D-Index: 99 scientists
70–71 D-Index 185+

This scientist: 89 D-Index — 38th percentile

38% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 185 D-Index or more.

View D-Index distribution as a table
Number of Physics scientists by D-index, Research.com 2026 ranking edition. Based on 3,678 ranked scientists.
D-Index Scientists This scientist
70–71 76
72–73 110
74–75 143
76–77 153
78–79 144
80–81 167
82–83 167
84–85 166
86–87 132
88–89 155 89
90–91 134
92–93 137
94–95 102
96–97 112
98–99 110
100–101 116
102–103 97
104–105 103
106–107 87
108–109 90
110–111 67
112–113 78
114–115 75
116–117 67
118–119 69
120–121 60
122–123 59
124–125 53
126–127 42
128–129 41
130–131 33
132–133 32
134–135 45
136–137 19
138–139 24
140–141 28
142–143 31
144–145 22
146–147 20
148–149 12
150–151 16
152–153 24
154–155 23
156–157 15
158–159 15
160–161 11
162–163 17
164–165 12
166–167 11
168–169 9
170–171 9
172–173 11
174–175 4
176–177 8
178–179 5
180–181 3
182–183 4
184 4
185+ 99
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Research.com Recognitions

  • 2009 - Fellow of American Physical Society (APS) Citation For outstanding contributions to the understanding of nonlinear whistlermode waveparticle interactions, the physics of lightningionosphere interactions, and lightningdriven loss of radiation belt electrons
  • 2007 - Fellow of American Geophysical Union (AGU)

Overview

Umran S. Inan is affiliated with Stanford University in the United States. Their research primarily spans the fields of Physics and Astronomy, Engineering, and Earth and Planetary Sciences. Within these, the subfields of Astronomy and Astrophysics, Geophysics, and Aerospace Engineering constitute the core areas of their scientific work. The main topics explored in their research include ionosphere and magnetosphere dynamics, earthquake detection and analysis, solar and space plasma dynamics, astro and planetary science, spacecraft design and technology, spacecraft and cryogenic technologies, and planetary science and exploration.

Umran S. Inan has contributed to the scientific community through multiple publications across various respected venues. Frequent publication venues for their work include the Journal of Geophysical Research Space Physics, Zenodo (CERN European Organization for Nuclear Research), Earth Planets and Space, Earth and Space Science, and Scientific Reports.

Their recent scholarly papers include:

  • Space-to-space very low frequency radio transmission in the magnetosphere using the DSX and Arase satellites, 2022, Earth Planets and Space
  • The Micro-Broadband Receiver (μBBR) on the Very-Low-Frequency Propagation Mapper CubeSat, 2021, Earth and Space Science
  • Discovery and insights from DSX mission's high-power VLF wave transmission experiments in the radiation belts, 2022, Scientific Reports
  • Overview of the Demonstration and Science Experiments (DSX) Mission, 2023, Journal of Geophysical Research Space Physics
  • Quasi-Periodic Whistler Mode Emission in the Plasmasphere as Observed by the DSX Spacecraft, 2022, Journal of Geophysical Research Space Physics

Collaboration plays a significant role in their research output. Frequent co-authors with whom they have published extensively include M. Starks, W. R. Johnston, D. Lauben, I. R. Linscott, and G. P. Ginet.

Inan's work delves into the physics of space and atmospheric phenomena, focusing on aspects such as whistler-mode wave-particle interactions, lightning-ionosphere interactions, and lightning-driven loss of radiation belt electrons. This specialization is reflected in their recognition by professional organizations, having been named a Fellow of the American Physical Society (APS) in 2009 and a Fellow of the American Geophysical Union (AGU) in 2007.

Best Publications

  • Wave acceleration of electrons in the Van Allen radiation belts

    Richard B. Horne;Richard M. Thorne;Yuri Y. Shprits;Nigel P. Meredith

  • Sprites produced by quasi-electrostatic heating and ionization in the lower ionosphere

    V. P. Pasko;U. S. Inan;T. F. Bell;Y. N. Taranenko

  • Electrical discharge from a thundercloud top to the lower ionosphere

    Victor P. Pasko;Mark A. Stanley;Mark A. Stanley;John D. Mathews;Umran S. Inan

  • Numerical Electromagnetics: The FDTD Method

    Umran S. Inan;Robert A. Marshall

  • Elves : Lightning-induced transient luminous events in the lower ionosphere

    H. Fukunishi;Y. Takahashi;M. Kubota;K. Sakanoi

  • The plasmapause as a VLF wave guide

    U. S. Inan;T. F. Bell

  • Nonlinear pitch angle scattering of energetic electrons by coherent VLF waves in the magnetosphere

    U. S. Inan;T. F. Bell;R. A. Helliwell

  • Heating and ionization of the lower ionosphere by lightning

    U. S. Inan;T. F. Bell;J. V. Rodriguez

  • Observations of relativistic electron microbursts in association with VLF chorus

    K. R. Lorentzen;J. B. Blake;U. S. Inan;J. Bortnik

  • Spatial structure of sprites

    Victor P. Pasko;Umran S. Inan;Timothy F. Bell

  • Ionospheric D region remote sensing using VLF radio atmospherics

    S. A. Cummer;U. S. Inan;T. F. Bell

  • Sensitive Broadband ELF/VLF Radio Reception With the AWESOME Instrument

    M.B. Cohen;U.S. Inan;E.W. Paschal

  • Nonlinear interaction of energetic electrons with large amplitude chorus

    J. Bortnik;R. M. Thorne;U. S. Inan

  • Identification of sprites and elves with intensified video and broadband array photometry

    Christopher P. Barrington-Leigh;Umran S. Inan;Mark Stanley

  • Lightning-induced electron precipitation

    H. D. Voss;W. L. Imhof;M. Walt;J. Mobilia

  • Heating, ionization and upward discharges in the mesosphere, due to intense quasi‐electrostatic thundercloud fields

    Victor P. Pasko;Umran S. Inan;Yuri N. Taranenko;Timothy F. Bell

  • Interaction with the lower ionosphere of electromagnetic pulses from lightning: Heating, attachment, and ionization

    Y. N. Taranenko;U. S. Inan;T. F. Bell

  • Monte Carlo simulation of runaway MeV electron breakdown with application to red sprites and terrestrial gamma ray flashes

    N. G. Lehtinen;T. F. Bell;U. S. Inan

  • Long-range lightning geolocation using a VLF radio atmospheric waveform bank

    R. K. Said;U. S. Inan;U. S. Inan;K. L. Cummins

  • On the association of terrestrial gamma-ray bursts with lightning and implications for sprites

    Umran S. Inan;Steven C. Reising;Gerald J. Fishman;John M. Horack

Frequent Co-Authors

Timothy F. Bell
Timothy F. Bell Stanford University
D. L. Carpenter
D. L. Carpenter Stanford University
Victor P. Pasko
Victor P. Pasko Pennsylvania State University
Michel Parrot
Michel Parrot Centre national de la recherche scientifique, CNRS
Steven A. Cummer
Steven A. Cummer Duke University
Tomoo Ushio
Tomoo Ushio Osaka University
Mark Engebretson
Mark Engebretson Augsburg College
Harald U. Frey
Harald U. Frey University of California, Berkeley
Bodo W. Reinisch
Bodo W. Reinisch University of Massachusetts Lowell
Christos Haldoupis
Christos Haldoupis University of Crete

External Links

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Best Scientists Citing Umran S. Inan

Richard M. Thorne

Richard M. Thorne

University of California, Los Angeles

Publications: 144

Michel Parrot

Michel Parrot

Centre national de la recherche scientifique, CNRS

Publications: 128

Yuri Shprits

Yuri Shprits

University of Potsdam

Publications: 121

Steven A. Cummer

Steven A. Cummer

Duke University

Publications: 118

Richard B. Horne

Richard B. Horne

British Antarctic Survey

Publications: 112

Craig J. Rodger

Craig J. Rodger

University of Otago

Publications: 106

Masashi Hayakawa

Masashi Hayakawa

University of Electro-Communications

Publications: 92

Jacob Bortnik

Jacob Bortnik

University of California, Los Angeles

Publications: 88

Oleksiy Agapitov

Oleksiy Agapitov

University of California, Berkeley

Publications: 79

Mark A. Clilverd

Mark A. Clilverd

British Antarctic Survey

Publications: 76

William S. Kurth

William S. Kurth

University of Iowa

Publications: 71

Craig Kletzing

Craig Kletzing

University of Iowa

Publications: 70

Daniel N. Baker

Daniel N. Baker

University of Colorado Boulder

Publications: 70

Nigel P. Meredith

Nigel P. Meredith

British Antarctic Survey

Publications: 67

Geoffrey D. Reeves

Geoffrey D. Reeves

Los Alamos National Laboratory

Publications: 63

Victor P. Pasko

Victor P. Pasko

Pennsylvania State University

Publications: 62

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