World's Best Scientists 2026 revealed!
Philip R. Christensen

Philip R. Christensen

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Earth Science
USA
2026

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Earth Science 114 61 49 26 20 618 41600

Philip R. Christensen publications per year

The chart shows the history of publications by Philip R. Christensen between 1962 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Philip R. Christensen published across 64 years, from 1962 to 2025, averaging 13.1 papers a year. Output peaked at 52 publications in 2019. 13 of the 840 publications appeared in the last two years.

No. of publications
10 20 30 40 50
Bar chart. Horizontal axis: year, 1962 to 2025. Vertical axis: number of publications, 0 to 52. Peak 52 publications in 2019. 1962: 1 publication 1963: 1 publication 1964: 0 publications 1965: 1 publication 1966: 0 publications 1967: 1 publication 1968: 2 publications 1969: 1 publication 1970: 1 publication 1971: 3 publications 1972: 2 publications 1973: 6 publications 1974: 1 publication 1975: 1 publication 1976: 3 publications 1977: 2 publications 1978: 1 publication 1979: 1 publication 1980: 0 publications 1981: 1 publication 1982: 3 publications 1983: 4 publications 1984: 10 publications 1985: 7 publications 1986: 6 publications 1987: 12 publications 1988: 9 publications 1989: 3 publications 1990: 2 publications 1991: 1 publication 1992: 4 publications 1993: 6 publications 1994: 3 publications 1995: 4 publications 1996: 4 publications 1997: 12 publications 1998: 11 publications 1999: 22 publications 2000: 30 publications 2001: 21 publications 2002: 22 publications 2003: 45 publications 2004: 41 publications 2005: 42 publications 2006: 41 publications 2007: 22 publications 2008: 28 publications 2009: 16 publications 2010: 18 publications 2011: 22 publications 2012: 24 publications 2013: 33 publications 2014: 37 publications 2015: 34 publications 2016: 23 publications 2017: 24 publications 2018: 21 publications 2019: 52 publications 2020: 19 publications 2021: 26 publications 2022: 17 publications 2023: 17 publications 2024: 8 publications 2025: 5 publications
1962 2025

840 publications in total across all disciplines

View publications per year as a table
Philip R. Christensen: publications per year, 1962 to 2025
Year Publications
1962 1
1963 1
1964 0
1965 1
1966 0
1967 1
1968 2
1969 1
1970 1
1971 3
1972 2
1973 6
1974 1
1975 1
1976 3
1977 2
1978 1
1979 1
1980 0
1981 1
1982 3
1983 4
1984 10
1985 7
1986 6
1987 12
1988 9
1989 3
1990 2
1991 1
1992 4
1993 6
1994 3
1995 4
1996 4
1997 12
1998 11
1999 22
2000 30
2001 21
2002 22
2003 45
2004 41
2005 42
2006 41
2007 22
2008 28
2009 16
2010 18
2011 22
2012 24
2013 33
2014 37
2015 34
2016 23
2017 24
2018 21
2019 52
2020 19
2021 26
2022 17
2023 17
2024 8
2025 5
Total 840
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Philip R. Christensen 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 Philip R. Christensen sits on this spectrum.

No. of scientists
100 200 300 400 500
Bar chart with 58 bars. Horizontal axis: publications, 38–47 to 603+. Vertical axis: number of scientists, 0 to 557. Most scientists, 557, have 128–137 publications. The last bar groups every scientist with 603 publications or more. The highlighted bar, 603+ publications, is where this scientist sits. 38–47 publications: 5 scientists 48–57 publications: 33 scientists 58–67 publications: 94 scientists 68–77 publications: 161 scientists 78–87 publications: 278 scientists 88–97 publications: 376 scientists 98–107 publications: 404 scientists 108–117 publications: 484 scientists 118–127 publications: 540 scientists 128–137 publications: 557 scientists 138–147 publications: 491 scientists 148–157 publications: 495 scientists 158–167 publications: 458 scientists 168–177 publications: 490 scientists 178–187 publications: 414 scientists 188–197 publications: 401 scientists 198–207 publications: 333 scientists 208–217 publications: 292 scientists 218–227 publications: 290 scientists 228–237 publications: 262 scientists 238–247 publications: 243 scientists 248–257 publications: 208 scientists 258–267 publications: 185 scientists 268–277 publications: 147 scientists 278–287 publications: 128 scientists 288–297 publications: 119 scientists 298–307 publications: 120 scientists 308–317 publications: 107 scientists 318–327 publications: 93 scientists 328–337 publications: 87 scientists 338–347 publications: 64 scientists 348–357 publications: 87 scientists 358–367 publications: 60 scientists 368–377 publications: 60 scientists 378–387 publications: 34 scientists 388–397 publications: 50 scientists 398–407 publications: 44 scientists 408–417 publications: 31 scientists 418–427 publications: 39 scientists 428–437 publications: 27 scientists 438–447 publications: 36 scientists 448–457 publications: 27 scientists 458–467 publications: 29 scientists 468–477 publications: 30 scientists 478–487 publications: 19 scientists 488–497 publications: 15 scientists 498–507 publications: 18 scientists 508–517 publications: 19 scientists 518–527 publications: 16 scientists 528–537 publications: 10 scientists 538–547 publications: 11 scientists 548–557 publications: 14 scientists 558–567 publications: 11 scientists 568–577 publications: 7 scientists 578–587 publications: 14 scientists 588–597 publications: 5 scientists 598–602 publications: 4 scientists 603+ publications: 100 scientists
38–47 publications 603+

This scientist: 618 publications — 99th percentile

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

The last bar groups every scientist with 603 publications or more.

View publications distribution as a table
Number of Earth Science scientists by publication count, Research.com 2026 ranking edition. Based on 9,176 ranked scientists.
Publications Scientists This scientist
38–47 5
48–57 33
58–67 94
68–77 161
78–87 278
88–97 376
98–107 404
108–117 484
118–127 540
128–137 557
138–147 491
148–157 495
158–167 458
168–177 490
178–187 414
188–197 401
198–207 333
208–217 292
218–227 290
228–237 262
238–247 243
248–257 208
258–267 185
268–277 147
278–287 128
288–297 119
298–307 120
308–317 107
318–327 93
328–337 87
338–347 64
348–357 87
358–367 60
368–377 60
378–387 34
388–397 50
398–407 44
408–417 31
418–427 39
428–437 27
438–447 36
448–457 27
458–467 29
468–477 30
478–487 19
488–497 15
498–507 18
508–517 19
518–527 16
528–537 10
538–547 11
548–557 14
558–567 11
568–577 7
578–587 14
588–597 5
598–602 4
603+ 100 618
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Philip R. Christensen 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 Philip R. Christensen sits on this spectrum.

No. of scientists
100 200 300
Bar chart with 77 bars. Horizontal axis: D-Index, 30 to 106+. Vertical axis: number of scientists, 0 to 389. Most scientists, 389, have 36 D-Index. The last bar groups every scientist with 106 D-Index or more. The highlighted bar, 106+ D-Index, is where this scientist sits. 30 D-Index: 144 scientists 31 D-Index: 215 scientists 32 D-Index: 278 scientists 33 D-Index: 379 scientists 34 D-Index: 366 scientists 35 D-Index: 372 scientists 36 D-Index: 389 scientists 37 D-Index: 366 scientists 38 D-Index: 344 scientists 39 D-Index: 349 scientists 40 D-Index: 296 scientists 41 D-Index: 289 scientists 42 D-Index: 277 scientists 43 D-Index: 279 scientists 44 D-Index: 248 scientists 45 D-Index: 257 scientists 46 D-Index: 212 scientists 47 D-Index: 202 scientists 48 D-Index: 207 scientists 49 D-Index: 204 scientists 50 D-Index: 183 scientists 51 D-Index: 178 scientists 52 D-Index: 182 scientists 53 D-Index: 178 scientists 54 D-Index: 163 scientists 55 D-Index: 117 scientists 56 D-Index: 163 scientists 57 D-Index: 120 scientists 58 D-Index: 113 scientists 59 D-Index: 136 scientists 60 D-Index: 135 scientists 61 D-Index: 96 scientists 62 D-Index: 103 scientists 63 D-Index: 83 scientists 64 D-Index: 103 scientists 65 D-Index: 83 scientists 66 D-Index: 89 scientists 67 D-Index: 92 scientists 68 D-Index: 89 scientists 69 D-Index: 78 scientists 70 D-Index: 75 scientists 71 D-Index: 53 scientists 72 D-Index: 62 scientists 73 D-Index: 54 scientists 74 D-Index: 35 scientists 75 D-Index: 52 scientists 76 D-Index: 50 scientists 77 D-Index: 32 scientists 78 D-Index: 37 scientists 79 D-Index: 20 scientists 80 D-Index: 33 scientists 81 D-Index: 36 scientists 82 D-Index: 34 scientists 83 D-Index: 34 scientists 84 D-Index: 24 scientists 85 D-Index: 19 scientists 86 D-Index: 18 scientists 87 D-Index: 26 scientists 88 D-Index: 30 scientists 89 D-Index: 17 scientists 90 D-Index: 21 scientists 91 D-Index: 19 scientists 92 D-Index: 15 scientists 93 D-Index: 14 scientists 94 D-Index: 20 scientists 95 D-Index: 9 scientists 96 D-Index: 10 scientists 97 D-Index: 15 scientists 98 D-Index: 13 scientists 99 D-Index: 3 scientists 100 D-Index: 13 scientists 101 D-Index: 3 scientists 102 D-Index: 9 scientists 103 D-Index: 4 scientists 104 D-Index: 6 scientists 105 D-Index: 6 scientists 106+ D-Index: 98 scientists
30 D-Index 106+

This scientist: 114 D-Index — 99th percentile

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

The last bar groups every scientist with 106 D-Index or more.

View D-Index distribution as a table
Number of Earth Science scientists by D-index, Research.com 2026 ranking edition. Based on 9,176 ranked scientists.
D-Index Scientists This scientist
30 144
31 215
32 278
33 379
34 366
35 372
36 389
37 366
38 344
39 349
40 296
41 289
42 277
43 279
44 248
45 257
46 212
47 202
48 207
49 204
50 183
51 178
52 182
53 178
54 163
55 117
56 163
57 120
58 113
59 136
60 135
61 96
62 103
63 83
64 103
65 83
66 89
67 92
68 89
69 78
70 75
71 53
72 62
73 54
74 35
75 52
76 50
77 32
78 37
79 20
80 33
81 36
82 34
83 34
84 24
85 19
86 18
87 26
88 30
89 17
90 21
91 19
92 15
93 14
94 20
95 9
96 10
97 15
98 13
99 3
100 13
101 3
102 9
103 4
104 6
105 6
106+ 98 114
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Research.com Recognitions

  • 2026 - Research.com Earth Science in United States Leader Award
  • 2025 - Research.com Earth Science in United States Leader Award
  • 2004 - Fellow of American Geophysical Union (AGU)

Overview

Philip R. Christensen is affiliated with Arizona State University in the United States. Their research primarily focuses on the fields of Physics and Astronomy, with a strong emphasis on subfields such as Astronomy and Astrophysics, Ecology, Aerospace Engineering, Physiology, and Geophysics.

The scientist's work covers a range of main topics including:

  • Planetary Science and Exploration
  • Astro and Planetary Science
  • Isotope Analysis in Ecology
  • Space Science and Extraterrestrial Life
  • Space Exploration and Technology
  • Spaceflight effects on biology
  • Geological and Geochemical Analysis

Philip R. Christensen has published extensively in several key scientific venues, including:

  • Zenodo (CERN European Organization for Nuclear Research) with 12 publications
  • Journal of Geophysical Research Planets with 9 publications
  • Space Science Reviews with 7 publications
  • Geophysical Research Letters with 7 publications
  • The Planetary Science Journal with 5 publications

Frequent collaborators include:

  • V. E. Hamilton (25 co-authored papers)
  • Christopher S. Edwards (17 co-authored papers)
  • H. H. Kaplan (14 co-authored papers)
  • M. D. Smith (12 co-authored papers)
  • T. D. Glotch (11 co-authored papers)

Among notable recent research papers authored or co-authored by Philip R. Christensen are:

  • "Asteroid (101955) Bennu's weak boulders and thermally anomalous equator," 2020, published in Science Advances
  • "Lucy Mission to the Trojan Asteroids: Science Goals," 2021, published in The Planetary Science Journal
  • "Spacecraft sample collection and subsurface excavation of asteroid (101955) Bennu," 2022, published in Science
  • "The Emirates Mars Mission," 2022, published in Space Science Reviews
  • "Science Overview of the Europa Clipper Mission," 2024, published in Space Science Reviews

Philip R. Christensen was awarded the title of Fellow of the American Geophysical Union in 2004.

Best Publications

  • In situ evidence for an ancient aqueous environment at Meridiani Planum, Mars.

    Steven W. Squyres;John P. Grotzinger;Raymond E. Arvidson;James F. Bell

  • Mars Global Surveyor Thermal Emission Spectrometer experiment: Investigation description and surface science results

    Philip Christensen;J. L. Bandfield;V. E. Hamilton;Steven Ruff

  • The Thermal Emission Imaging System (THEMIS) for the Mars 2001 Odyssey mission

    Philip R. Christensen;Bruce M. Jakosky;Hugh H. Kieffer;Michael C. Malin

  • A Global View of Martian Surface Compositions from MGS-TES

    Joshua L. Bandfield;Victoria E. Hamilton;Philip R. Christensen

  • Monitoring urban land cover change: An expert system approach to land cover classification of semiarid to arid urban centers

    William L Stefanov;Michael S Ramsey;Philip R Christensen

  • OSIRIS-REx: Sample Return from Asteroid (101955) Bennu

    D. S. Lauretta;S. S. Balram-Knutson;E. Beshore;W. V. Boynton

  • Overview of the Spirit Mars Exploration Rover Mission to Gusev Crater: Landing site to Backstay Rock in the Columbia Hills

    R. E. Arvidson;S. W. Squyres;R. C. Anderson;J. F. Bell

  • The Opportunity Rover's Athena science investigation at Meridiani Planum, Mars.

    S. W. Squyres;R. E. Arvidson;J.F. Bell;J. Brückner

  • Provenance and diagenesis of the evaporite-bearing Burns formation, Meridiani Planum, Mars

    S.M. McLennan;J.F. Bell;W. M. Calvin;P. R. Christensen

  • High-Resolution Thermal Inertia Mapping from the Mars Global Surveyor Thermal Emission Spectrometer

    Michael T Mellon;Bruce M Jakosky;Hugh H Kieffer;Philip R Christensen

  • Detection of crystalline hematite mineralization on Mars by the Thermal Emission Spectrometer: Evidence for near‐surface water

    Philip Christensen;J. L. Bandfield;R. N. Clark;K. S. Edgett

  • An intercomparison of ground-based millimeter, MGS TES, and Viking atmospheric temperature measurements: Seasonal and interannual variability of temperatures and dust loading in the global Mars atmosphere

    R. T. Clancy;B. J. Sandor;M. J. Wolff;Philip Christensen

  • Chloride-Bearing Materials in the Southern Highlands of Mars

    M. M. Osterloo;V. E. Hamilton;J. L. Bandfield;T. D. Glotch

  • A thermal emission spectral library of rock-forming minerals

    Philip R. Christensen;Joshua L. Bandfield;Victoria E. Hamilton;Douglas A. Howard;Douglas A. Howard

  • Mineral abundance determination: Quantitative deconvolution of thermal emission spectra

    Michael S. Ramsey;Philip R. Christensen

  • The Spirit Rover's Athena Science Investigation at Gusev Crater, Mars

    Steven W. Squyres;Raymond E. Arvidson;James F. Bell;J. Bruckner

  • Bright and dark regions on Mars: Particle size and mineralogical characteristics based on thermal emission spectrometer data

    Steven W. Ruff;Philip R. Christensen

  • Mineralogy at Meridiani Planum from the Mini-TES Experiment on the Opportunity Rover.

    Philip Christensen;M. B. Wyatt;T. D. Glotch;A. D. Rogers

  • Formation of recent martian gullies through melting of extensive water-rich snow deposits

    Philip R. Christensen

  • An integrated view of the chemistry and mineralogy of martian soils

    Albert S. Yen;Ralf Gellert;Christian Schröder;Richard V. Morris

  • Chemistry and mineralogy of outcrops at Meridiani Planum

    Benton C. Clark;R. V. Morris;S. M. McLennan;R. Gellert

Frequent Co-Authors

Harry Y. McSween
Harry Y. McSween University of Tennessee at Knoxville
Joshua L. Bandfield
Joshua L. Bandfield Space Science Institute
Victoria E. Hamilton
Victoria E. Hamilton Southwest Research Institute
James F. Bell
James F. Bell Arizona State University
Raymond E. Arvidson
Raymond E. Arvidson Washington University in St. Louis
Steven W. Squyres
Steven W. Squyres Cornell University
Steven W. Ruff
Steven W. Ruff Arizona State University
Jeffrey E. Moersch
Jeffrey E. Moersch University of Tennessee at Knoxville
Jeffrey R. Johnson
Jeffrey R. Johnson Johns Hopkins University Applied Physics Laboratory
Ronald Greeley
Ronald Greeley Arizona State University

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