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Dennis L. Gallagher

D-Index & Metrics

Environmental Sciences

D-Index
44
Citations
7749
World Ranking
6724
National Ranking
2401

Dennis L. Gallagher publication distribution in Environmental Sciences in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Environmental Sciences in 2026. The highlighted bar marks where Dennis L. Gallagher sits on this spectrum.

41–50 publications: 21 scientists 51–60 publications: 62 scientists 61–70 publications: 133 scientists 71–80 publications: 257 scientists 81–90 publications: 361 scientists 91–100 publications: 440 scientists 101–110 publications: 492 scientists 111–120 publications: 541 scientists 121–130 publications: 617 scientists 131–140 publications: 544 scientists 141–150 publications: 541 scientists 151–160 publications: 539 scientists 161–170 publications: 444 scientists 171–180 publications: 444 scientists 181–190 publications: 400 scientists 191–200 publications: 377 scientists 201–210 publications: 318 scientists 211–220 publications: 283 scientists 221–230 publications: 263 scientists 231–240 publications: 220 scientists 241–250 publications: 217 scientists 251–260 publications: 180 scientists 261–270 publications: 181 scientists 271–280 publications: 155 scientists 281–290 publications: 130 scientists 291–300 publications: 127 scientists 301–310 publications: 130 scientists 311–320 publications: 85 scientists 321–330 publications: 106 scientists 331–340 publications: 80 scientists 341–350 publications: 83 scientists 351–360 publications: 75 scientists 361–370 publications: 69 scientists 371–380 publications: 52 scientists 381–390 publications: 54 scientists 391–400 publications: 56 scientists 401–410 publications: 44 scientists 411–420 publications: 40 scientists 421–430 publications: 36 scientists 431–440 publications: 25 scientists 441–450 publications: 25 scientists 451–460 publications: 32 scientists 461–470 publications: 29 scientists 471–480 publications: 21 scientists 481–490 publications: 26 scientists 491–500 publications: 25 scientists 501–510 publications: 17 scientists 511–520 publications: 18 scientists 521–530 publications: 15 scientists 531–540 publications: 22 scientists 541–550 publications: 12 scientists 551–560 publications: 15 scientists 561–570 publications: 11 scientists 571–580 publications: 19 scientists 581–590 publications: 9 scientists 591–600 publications: 9 scientists 601–610 publications: 7 scientists 611–620 publications: 11 scientists 621–630 publications: 5 scientists 631–640 publications: 5 scientists 641–650 publications: 6 scientists 651–660 publications: 3 scientists 661–670 publications: 3 scientists 671–680 publications: 4 scientists 681–686 publications: 3 scientists 687+ publications: 100 scientists
41 publications 687+

This scientist: 230 publications — 73rd percentile

73% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 687 publications or more.

Dennis L. Gallagher D-index placement in Environmental Sciences in 2026

The chart shows the D-index (discipline H-index) distribution of Environmental Sciences scientists ranked by Research.com in 2026. The highlighted bar marks where Dennis L. Gallagher sits on this spectrum.

30 D-Index: 12 scientists 31 D-Index: 26 scientists 32 D-Index: 51 scientists 33 D-Index: 88 scientists 34 D-Index: 123 scientists 35 D-Index: 163 scientists 36 D-Index: 206 scientists 37 D-Index: 267 scientists 38 D-Index: 265 scientists 39 D-Index: 275 scientists 40 D-Index: 321 scientists 41 D-Index: 343 scientists 42 D-Index: 305 scientists 43 D-Index: 336 scientists 44 D-Index: 330 scientists 45 D-Index: 348 scientists 46 D-Index: 291 scientists 47 D-Index: 275 scientists 48 D-Index: 272 scientists 49 D-Index: 273 scientists 50 D-Index: 263 scientists 51 D-Index: 232 scientists 52 D-Index: 266 scientists 53 D-Index: 217 scientists 54 D-Index: 199 scientists 55 D-Index: 177 scientists 56 D-Index: 202 scientists 57 D-Index: 204 scientists 58 D-Index: 166 scientists 59 D-Index: 177 scientists 60 D-Index: 166 scientists 61 D-Index: 152 scientists 62 D-Index: 143 scientists 63 D-Index: 150 scientists 64 D-Index: 124 scientists 65 D-Index: 119 scientists 66 D-Index: 120 scientists 67 D-Index: 118 scientists 68 D-Index: 82 scientists 69 D-Index: 98 scientists 70 D-Index: 94 scientists 71 D-Index: 105 scientists 72 D-Index: 74 scientists 73 D-Index: 84 scientists 74 D-Index: 70 scientists 75 D-Index: 67 scientists 76 D-Index: 78 scientists 77 D-Index: 60 scientists 78 D-Index: 59 scientists 79 D-Index: 52 scientists 80 D-Index: 47 scientists 81 D-Index: 38 scientists 82 D-Index: 48 scientists 83 D-Index: 42 scientists 84 D-Index: 42 scientists 85 D-Index: 43 scientists 86 D-Index: 29 scientists 87 D-Index: 37 scientists 88 D-Index: 29 scientists 89 D-Index: 30 scientists 90 D-Index: 34 scientists 91 D-Index: 20 scientists 92 D-Index: 22 scientists 93 D-Index: 17 scientists 94 D-Index: 19 scientists 95 D-Index: 24 scientists 96 D-Index: 21 scientists 97 D-Index: 20 scientists 98 D-Index: 24 scientists 99 D-Index: 17 scientists 100 D-Index: 17 scientists 101 D-Index: 21 scientists 102 D-Index: 25 scientists 103 D-Index: 18 scientists 104 D-Index: 26 scientists 105 D-Index: 19 scientists 106 D-Index: 15 scientists 107 D-Index: 10 scientists 108 D-Index: 13 scientists 109 D-Index: 15 scientists 110 D-Index: 12 scientists 111 D-Index: 8 scientists 112 D-Index: 7 scientists 113 D-Index: 9 scientists 114 D-Index: 6 scientists 115 D-Index: 12 scientists 116 D-Index: 7 scientists 117 D-Index: 8 scientists 118 D-Index: 3 scientists 119 D-Index: 5 scientists 120 D-Index: 7 scientists 121 D-Index: 2 scientists 122 D-Index: 4 scientists 123 D-Index: 8 scientists 124 D-Index: 7 scientists 125+ D-Index: 99 scientists
30 D-Index 125+

This scientist: 44 D-Index — 32nd percentile

32% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 125 D-Index or more.

Overview

Dennis L. Gallagher is affiliated with the Marshall Space Flight Center in the United States. Their research primarily spans the fields of Physics and Astronomy, with a focus on Astronomy and Astrophysics, Geophysics, Safety Research, Social Psychology, and Safety, Risk, Reliability and Quality as subfields.

The scientist's work explores several main topics, including:

  • Ionosphere and magnetosphere dynamics
  • Solar and Space Plasma Dynamics
  • Astro and Planetary Science
  • Earthquake Detection and Analysis
  • Career Development and Diversity
  • Mentoring and Academic Development
  • Technology Assessment and Management

Their recent published papers are as follows:

  • The Breathing Plasmasphere: Erosion and Refilling, 2021, Journal of Geophysical Research Space Physics
  • The Key Role of Cold Ionospheric Ions As a Source of Hot Magnetospheric Plasma and As a Driver of the Dynamics of Substorms and Storms, 2021, Frontiers in Astronomy and Space Sciences
  • Plasma Imaging, LOcal Measurement, and Tomographic Experiment (PILOT): A Mission Concept for Transformational Multi-Scale Observations of Mass and Energy Flow Dynamics in Earth's Magnetosphere, 2022, Frontiers in Astronomy and Space Sciences
  • H+, He+, He++, O++, N+ EMIC Wave Occurrence and Its Dependence on Geomagnetic Conditions: Results From 7 Years of Van Allen Probes Observations, 2024, Journal of Geophysical Research Space Physics
  • The importance of local long-duration STEM mentorship as a global mechanism for increasing diversity at all levels of education, 2023, Frontiers in Astronomy and Space Sciences

Frequent publication venues for their work include:

  • Frontiers in Astronomy and Space Sciences
  • Journal of Geophysical Research Space Physics
  • Scottish archaeological internet reports/Scottish archaeological internet report
  • Geophysical monograph

Among frequent co-authors are B. R. Sandel, R. E. Ergun, J. Goldstein, Shing F. Fung, and G. Fletcher, indicating collaborative engagements across multiple projects.

Best Publications

  • Solar Wind Electrons Alphas and Protons (SWEAP) Investigation: Design of the Solar Wind and Coronal Plasma Instrument Suite for Solar Probe Plus

    Justin C. Kasper;Justin C. Kasper;Robert Abiad;Gerry Austin;Marianne Balat-Pichelin

  • Global Core Plasma Model

    Dennis L. Gallagher;Paul D. Craven;Richard H. Comfort

  • Alfvénic velocity spikes and rotational flows in the near-Sun solar wind

    Justin C. Kasper;Justin C. Kasper;Stuart D. Bale;Stuart D. Bale;John W. Belcher;Matthieu Berthomier

  • Micron-sized particles detected near Saturn by the Voyager plasma wave instrument☆

    D.A. Gurnett;E. Grün;D. Gallagher;W.S. Kurth

  • The Extreme Ultraviolet Imager Investigation for the IMAGE Mission

    B. R. Sandel;A. L. Broadfoot;C. C. Curtis;R. A. King

  • Initial results from the IMAGE Extreme Ultraviolet Imager

    Bill R. Sandel;Robert A. King;W. T. Forrester;Dennis L. Gallagher

  • Funnel-shaped, low-frequency equatorial waves

    S. A. Boardsen;D. L. Gallagher;D. A. Gurnett;W. K. Peterson

  • Extreme Ultraviolet Imager Observations of the Structure and Dynamics of the Plasmasphere

    B. R. Sandel;J. Goldstein;D. L. Gallagher;M. Spasojevic

  • Plasma observations at the earth's magnetic equator

    R. C. Olsen;S. D. Shawhan;D. L. Gallagher;J. L. Green

  • Views of Earth's Magnetosphere with the IMAGE Satellite

    J. L. Burch;S. B. Mende;D. G. Mitchell;T. E. Moore

  • Parametric interaction and spatial collapse of beam-driven Langmuir waves in the solar wind

    D. A. Gurnett;J. E. Maggs;D. L. Gallagher;W. S. Kurth

  • The Radio Plasma Imager investigation on the IMAGE spacecraft

    B. W. Reinisch;D. M. Haines;K. Bibl;G. Cheney

  • Identifying the plasmapause in IMAGE EUV data using IMAGE RPI in situ steep density gradients

    J. Goldstein;M. Spasojević;P. H. Reiff;B. R. Sandel

  • Plasmaspheric Density Structures and Dynamics: Properties Observed by the CLUSTER and IMAGE Missions

    Fabien Darrouzet;Dennis L. Gallagher;Nicolas André;Donald L. Carpenter

  • An empirical model of the earth's plasmasphere

    D.L. Gallagher;P.D. Craven;R.H. Comfort

  • Relative concentration of He+ in the inner magnetosphere as observed by the DE 1 retarding ion mass spectrometer

    P. D. Craven;D. L. Gallagher;R. H. Comfort

  • Formation of density troughs embedded in the outer plasmasphere by subauroral ion drift events

    Daniel M. Ober;J. L. Horwitz;D. L. Gallagher

  • MHD wave breaking in the outer plasmasphere

    T. E. Moore;D. L. Gallagher;J. L. Horwitz;R. H. Comfort

  • Modeling the F2 topside and plasmasphere for IRI using IMAGE/RPI and ISIS data

    B.W. Reinisch;P. Nsumei;X. Huang;D.K. Bilitza

  • Plasma density distribution along the magnetospheric field: RPI Observations from IMAGE

    B. W. Reinisch;X. Huang;P. Song;G. S. Sales

  • Plasmaspheric mass loss and refilling as a result of a magnetic storm

    B. W. Reinisch;X. Huang;P. Song;J. L. Green

  • Developing an empirical density model of the plasmasphere using IMAGE/RPI observations

    Xueqin Huang;Bodo W. Reinisch;Paul Song;James L. Green

  • Dependence of plasmaspheric morphology on the electric field description during the recovery phase of the 17 April 2002 magnetic storm

    Michael W. Liemohn;Aaron J. Ridley;Dennis L. Gallagher;Daniel M. Ober

  • Latitudinal Density Dependence of Magnetic Field Lines Inferred from Polar Plasma Wave Data

    J. Goldstein;R. E. Denton;M. K. Hudson;E. G. Miftakhova

  • First results from the Radio Plasma Imager on IMAGE

    B. W. Reinisch;X. Huang;D. M. Haines;I. A. Galkin

Frequent Co-Authors

Bodo W. Reinisch
Bodo W. Reinisch University of Massachusetts Lowell
D. L. Carpenter
D. L. Carpenter Stanford University
Michael W. Liemohn
Michael W. Liemohn University of Michigan–Ann Arbor
Bill R. Sandel
Bill R. Sandel University of Arizona
Janet U. Kozyra
Janet U. Kozyra University of Michigan–Ann Arbor
Patricia H. Reiff
Patricia H. Reiff Rice University
Iannis Dandouras
Iannis Dandouras British Antarctic Survey
Aaron J. Ridley
Aaron J. Ridley University of Michigan–Ann Arbor
James L. Burch
James L. Burch Southwest Research Institute
Michelle F. Thomsen
Michelle F. Thomsen Planetary Science Institute

External Links

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Best Scientists Citing Dennis L. Gallagher

Justin C. Kasper

Justin C. Kasper

University of Michigan–Ann Arbor

Publications: 158

Stuart D. Bale

Stuart D. Bale

University of California, Berkeley

Publications: 139

Bodo W. Reinisch

Bodo W. Reinisch

University of Massachusetts Lowell

Publications: 68

Michael W. Liemohn

Michael W. Liemohn

University of Michigan–Ann Arbor

Publications: 67

William S. Kurth

William S. Kurth

University of Iowa

Publications: 47

Bill R. Sandel

Bill R. Sandel

University of Arizona

Publications: 46

Michelle F. Thomsen

Michelle F. Thomsen

Planetary Science Institute

Publications: 42

Kazue Takahashi

Kazue Takahashi

Johns Hopkins University Applied Physics Laboratory

Publications: 40

Roger R. Anderson

Roger R. Anderson

University of Iowa

Publications: 38

Mark B. Moldwin

Mark B. Moldwin

University of Michigan–Ann Arbor

Publications: 36

Richard M. Thorne

Richard M. Thorne

University of California, Los Angeles

Publications: 35

Yuri Shprits

Yuri Shprits

University of Potsdam

Publications: 31

Iannis Dandouras

Iannis Dandouras

British Antarctic Survey

Publications: 31

Richard B. Horne

Richard B. Horne

British Antarctic Survey

Publications: 31

Nathan A. Schwadron

Nathan A. Schwadron

University of New Hampshire

Publications: 30

James L. Burch

James L. Burch

Southwest Research Institute

Publications: 29

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