World's Best Scientists 2026 revealed!

D-Index & Metrics

Environmental Sciences

D-Index
66
Citations
17029
World Ranking
2073
National Ranking
846

Ralph L. McNutt 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 Ralph L. McNutt 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: 619 publications — 99th percentile

99% of scientists in this discipline score the same or lower.

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

Ralph L. McNutt 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 Ralph L. McNutt 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: 66 D-Index — 79th percentile

79% of scientists in this discipline score the same or lower.

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

Overview

Ralph L. McNutt is affiliated with Johns Hopkins University Applied Physics Laboratory in the United States. Their research primarily focuses on physics and astronomy, with a strong emphasis on astronomy and astrophysics. The scientist's work spans several subfields including astronomy and astrophysics, artificial intelligence, aerospace engineering, pulmonary and respiratory medicine, and nuclear and high-energy physics.

The main topics covered in their research include solar and space plasma dynamics, astro and planetary science, ionosphere and magnetosphere dynamics, stellar, planetary, and galactic studies, solar radiation and photovoltaics, gamma-ray bursts and supernovae, and planetary science and exploration.

Frequent collaborators in their research efforts include D. J. McComas, N. A. Schwadron, E. R. Christian, M. E. Hill, and D. G. Mitchell.

The scientist has contributed to a variety of journals and publication venues, demonstrating continued activity in the field. Some of the most frequent venues for their publications are:

  • The Astrophysical Journal
  • Astronomy and Astrophysics
  • The Astrophysical Journal Supplement Series
  • arXiv (Cornell University)
  • The Astrophysical Journal Letters

Selected recent papers authored or co-authored by Ralph L. McNutt include:

  • Anomalous Flux in the Cosmic Optical Background Detected with New Horizons Observations, 2022, The Astrophysical Journal Letters
  • Science Overview of the Europa Clipper Mission, 2024, Space Science Reviews
  • Solar Wind Streams and Stream Interaction Regions Observed by the Parker Solar Probe with Corresponding Observations at 1 au, 2020, The Astrophysical Journal Supplement Series
  • On the origin & thermal stability of Arrokoth's and Pluto's ices, 2020, Icarus
  • Energetic Particle Increases Associated with Stream Interaction Regions, 2020, The Astrophysical Journal Supplement Series

Best Publications

  • Cassini ion and neutral mass spectrometer: Enceladus plume composition and structure.

    J. Hunter Waite;Michael R. Combi;Wing Huen Ip;Thomas E. Cravens

  • Liquid water on Enceladus from observations of ammonia and 40Ar in the plume

    J. H. Waite;W. S. Lewis;B. A. Magee;J. I. Lunine

  • Ion Neutral Mass Spectrometer Results from the First Flyby of Titan

    J. Hunter Waite;Hasso Niemann;Roger V. Yelle;Wayne T. Kasprzak

  • The Major-Element Composition of Mercury’s Surface from MESSENGER X-ray Spectrometry

    Larry R. Nittler;Richard D. Starr;Shoshana Z. Weider;Timothy J. McCoy

  • 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

  • The Pluto system: Initial results from its exploration by New Horizons.

    S. A. Stern;F. Bagenal;K. Ennico;G. R. Gladstone

  • The MESSENGER mission to Mercury: Scientific objectives and implementation

    Sean C. Solomon;Ralph L. McNutt;Robert E. Gold;Mario H. Acuña

  • MESSENGER Mission Overview

    Sean C. Solomon;Ralph L. McNutt;Robert E. Gold;Deborah L. Domingue

  • Plasma observations near Jupiter: Initial results from Voyager 1

    H. S. Bridge;J. W. Belcher;A. J. Lazarus;J. D. Sullivan

  • The global magnetic field of Mercury from MESSENGER orbital observations.

    Brian J. Anderson;Catherine L. Johnson;Catherine L. Johnson;Haje Korth;Michael E. Purucker

  • Plasma Observations Near Uranus: Initial Results from Voyager 2

    H. S. Bridge;J. W. Belcher;B. Coppi;A. J. Lazarus

  • The Cassini Ion and Neutral Mass Spectrometer (INMS) Investigation

    J. H. Waite;W. S. Lewis;W. T. Kasprzak;V. G. Anicich

  • MESSENGER Observations of Magnetic Reconnection in Mercury’s Magnetosphere

    James A. Slavin;Mario H. Acuña;Brian J. Anderson;Daniel N. Baker

  • Radioactive Elements on Mercury’s Surface from MESSENGER: Implications for the Planet’s Formation and Evolution

    Patrick N. Peplowski;Larry G. Evans;Steven A. Hauck;Timothy J. McCoy

  • Composition of Titan's ionosphere

    T. E. Cravens;I. P. Robertson;Jr H. Waite;R. V. Yelle

  • Integrated Science Investigation of the Sun (ISIS): Design of the Energetic Particle Investigation

    D. J. McComas;D. J. McComas;N. Alexander;N. Angold;S. Bale

  • Evidence for water ice near Mercury's north pole from MESSENGER Neutron Spectrometer measurements.

    David J. Lawrence;William C. Feldman;John O. Goldsten;Sylvestre Maurice

  • Low‐degree structure in Mercury's planetary magnetic field

    Brian J. Anderson;Catherine L. Johnson;Catherine L. Johnson;Haje Korth;Reka M. Winslow

  • MESSENGER Observations of Extreme Loading and Unloading of Mercury’s Magnetic Tail

    James A. Slavin;Brian J. Anderson;Daniel N. Baker;Mehdi Benna

  • Positive ion observations in the middle magnetosphere of Jupiter

    R. L. McNutt;J. W. Belcher;H. S. Bridge

  • Topography of the Northern Hemisphere of Mercury from MESSENGER Laser Altimetry

    Maria T. Zuber;David E. Smith;Roger J. Phillips;Sean C. Solomon

  • Reflectance and color variations on Mercury: regolith processes and compositional heterogeneity.

    Mark S. Robinson;Scott L. Murchie;David T. Blewett;Deborah L. Domingue

  • Mercury's Magnetosphere After MESSENGER's First Flyby

    James A. Slavin;Mario H. Acuña;Brian J. Anderson;Daniel N. Baker

  • The structure of Mercury's magnetic field from MESSENGER's first flyby.

    Brian J. Anderson;Mario H. Acuña;Haje Korth;Michael E. Purucker

  • Return to Mercury: A Global Perspective on MESSENGER's First Mercury Flyby

    Sean C. Solomon;Ralph L. McNutt;Thomas R. Watters;David J. Lawrence

  • MESSENGER observations of magnetopause structure and dynamics at Mercury

    Gina A. DiBraccio;James A. Slavin;Scott A. Boardsen;Scott A. Boardsen;Brian J. Anderson

  • Major-element composition of Mercury's surface from MESSENGER X-ray Spectrometry

    S. Z. Weider;L. R. Nittler;R. D. Starr;T. J. McCoy

Frequent Co-Authors

Sean C. Solomon
Sean C. Solomon Lamont-Doherty Earth Observatory
Stamatios M. Krimigis
Stamatios M. Krimigis Johns Hopkins University Applied Physics Laboratory
James A. Slavin
James A. Slavin University of Michigan–Ann Arbor
Brian J. Anderson
Brian J. Anderson Johns Hopkins University Applied Physics Laboratory
Haje Korth
Haje Korth Johns Hopkins University Applied Physics Laboratory
George Gloeckler
George Gloeckler University of Michigan–Ann Arbor
Daniel N. Baker
Daniel N. Baker University of Colorado Boulder
Scott L. Murchie
Scott L. Murchie Johns Hopkins University Applied Physics Laboratory
Roger J. Phillips
Roger J. Phillips Washington University in St. Louis
Thomas E. Cravens
Thomas E. Cravens University of Kansas

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