World's Best Scientists 2026 revealed!

D-Index & Metrics

Environmental Sciences

D-Index
54
Citations
10330
World Ranking
4059
National Ranking
1546

Samuel M. Clegg 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 Samuel M. Clegg 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: 282 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: 26 scientists 501–510 publications: 17 scientists 511–520 publications: 19 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 681–689 publications: 4 scientists 690+ publications: 100 scientists
41 publications 690+

This scientist: 348 publications — 91st percentile

91% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 690 publications or more.

Samuel M. Clegg 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 Samuel M. Clegg 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: 198 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: 20 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: 9 scientists 126+ D-Index: 92 scientists
30 D-Index 126+

This scientist: 54 D-Index — 59th percentile

59% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 126 D-Index or more.

Overview

Samuel M. Clegg is a researcher affiliated with Los Alamos National Laboratory in the United States. Their work primarily focuses on physics and astronomy, with particular contributions to engineering. Within these broad fields, their subfield expertise includes astronomy and astrophysics, aerospace engineering, mechanics of materials, atmospheric science, and mechanical engineering.

The scientist's research spans several interconnected topics such as planetary science and exploration, astro and planetary science, space exploration and technology, laser-induced spectroscopy and plasma, geology and paleoclimatology research, spectroscopy and laser applications, and nuclear physics and applications.

Samuel M. Clegg has published extensively in recognized scientific venues. Frequent publication outlets include:

  • Spectrochimica Acta Part B Atomic Spectroscopy
  • Journal of Geophysical Research Planets
  • Space Science Reviews
  • Icarus
  • Zenodo (CERN European Organization for Nuclear Research)

Among their recent papers are the following:

  • The SuperCam Instrument Suite on the NASA Mars 2020 Rover: Body Unit and Combined System Tests, 2020, Space Science Reviews
  • The SuperCam Instrument Suite on the Mars 2020 Rover: Science Objectives and Mast-Unit Description, 2021, Space Science Reviews
  • Perseverance's Scanning Habitable Environments with Raman and Luminescence for Organics and Chemicals (SHERLOC) Investigation, 2021, Space Science Reviews
  • Compositionally and density stratified igneous terrain in Jezero crater, Mars, 2022, Science Advances
  • Post-landing major element quantification using SuperCam laser induced breakdown spectroscopy, 2021, Spectrochimica Acta Part B Atomic Spectroscopy

Collaboration plays a significant role in their research, as reflected in frequent co-authorship with other scientists, including:

  • R. C. Wiens
  • O. Gasnault
  • A. Cousin
  • O. Forni
  • S. Maurice

Best Publications

  • The ChemCam Instrument Suite on the Mars Science Laboratory (MSL) Rover: Body Unit and Combined System Tests

    Roger C. Wiens;Sylvestre Maurice;Sylvestre Maurice;Bruce Barraclough;Bruce Barraclough;Muriel Saccoccio

  • The ChemCam Instrument Suite on the Mars Science Laboratory (MSL) Rover: Science Objectives and Mast Unit Description

    S. Maurice;R. C. Wiens;M. Saccoccio;B. Barraclough

  • Volatile and organic compositions of sedimentary rocks in Yellowknife Bay, Gale crater, Mars.

    Douglas W. Ming;P. D. Archer;D. P. Glavin;J. L. Eigenbrode

  • Multivariate analysis of remote laser-induced breakdown spectroscopy spectra using partial least squares, principal component analysis, and related techniques

    Samuel M. Clegg;Elizabeth Sklute;M. Darby Dyar;James E. Barefield

  • Pre-flight calibration and initial data processing for the ChemCam laser-induced breakdown spectroscopy instrument on the Mars Science Laboratory rover

    R.C. Wiens;S. Maurice;J. Lasue;O. Forni

  • Elemental Geochemistry of Sedimentary Rocks at Yellowknife Bay, Gale Crater, Mars.

    S. M. McLennan;R. B. Anderson;J. F. Bell;J. C. Bridges

  • Calcium sulfate veins characterized by ChemCam/Curiosity at Gale crater, Mars

    M. Nachon;S. M. Clegg;N. Mangold;S. Schröder

  • Soil Diversity and Hydration as Observed by ChemCam at Gale Crater, Mars

    P.-Y. Meslin;P.-Y. Meslin;O. Gasnault;O. Gasnault;O. Forni;O. Forni;S. Schröder;S. Schröder

  • The SuperCam Instrument Suite on the NASA Mars 2020 Rover: Body Unit and Combined System Tests

    Roger C. Wiens;Sylvestre Maurice;Scott H. Robinson;Anthony E. Nelson

  • In situ evidence for continental crust on early Mars

    V. Sautter;M. J. Toplis;R. C. Wiens;A. Cousin

  • The SuperCam Instrument Suite on the Mars 2020 Rover: Science Objectives and Mast-Unit Description

    Sylvestre Maurice;R. Wiens;P. Bernardi;P. Caïs

  • Perseverance’s Scanning Habitable Environments with Raman and Luminescence for Organics and Chemicals (SHERLOC) Investigation

    Rohit Bhartia;Luther W. Beegle;Lauren DeFlores;William Abbey

  • Recalibration of the Mars Science Laboratory ChemCam instrument with an expanded geochemical database

    Samuel M. Clegg;Roger C. Wiens;Ryan Anderson;Olivier Forni

  • ChemCam activities and discoveries during the nominal mission of the Mars Science Laboratory in Gale crater, Mars

    S. Maurice;S. M. Clegg;R. C. Wiens;O. Gasnault

  • Compositionally and density stratified igneous terrain in Jezero crater, Mars

    Unknown

  • A study of machine learning regression methods for major elemental analysis of rocks using laser-induced breakdown spectroscopy

    Thomas F. Boucher;Marie V. Ozanne;Marco L. Carmosino;M. Darby Dyar

  • Strategies for Mars remote Laser-Induced Breakdown Spectroscopy analysis of sulfur in geological samples

    M. Darby Dyar;Jonathan M. Tucker;Seth Humphries;Samuel M. Clegg

  • Oxidation of manganese in an ancient aquifer, Kimberley formation, Gale crater, Mars

    Nina L. Lanza;Roger C. Wiens;Raymond E. Arvidson;Benton C. Clark

  • Comparison of partial least squares and lasso regression techniques as applied to laser-induced breakdown spectroscopy of geological samples

    M.D. Dyar;M.L. Carmosino;E.A. Breves;M.V. Ozanne

  • Combined remote LIBS and Raman spectroscopy at 8.6m of sulfur-containing minerals, and minerals coated with hematite or covered with basaltic dust.

    Shiv K Sharma;Anupam K Misra;Paul G Lucey;Roger Wiens

  • Optimization of laser-induced breakdown spectroscopy for rapid geochemical analysis

    J.M. Tucker;M.D. Dyar;M.W. Schaefer;S.M. Clegg

  • SHERLOC: Scanning habitable environments with Raman & luminescence for organics & chemicals

    Luther Beegle;Rohit Bhartia;Mary White;Lauren DeFlores

Frequent Co-Authors

Roger C. Wiens
Roger C. Wiens Los Alamos National Laboratory
Olivier Gasnault
Olivier Gasnault Paul Sabatier University
Sylvestre Maurice
Sylvestre Maurice Research Institute in Astrophysics and Planetology
Nina Lanza
Nina Lanza Los Alamos National Laboratory
Cécile Fabre
Cécile Fabre University of Lorraine
Violaine Sautter
Violaine Sautter Centre national de la recherche scientifique, CNRS
Horton E. Newsom
Horton E. Newsom University of New Mexico
John P. Grotzinger
John P. Grotzinger California Institute of Technology
Ann M. Ollila
Ann M. Ollila Los Alamos National Laboratory
Jeffrey R. Johnson
Jeffrey R. Johnson Johns Hopkins University Applied Physics Laboratory

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