World's Best Scientists 2026 revealed!

D-Index & Metrics

Earth Science

D-Index
47
Citations
20021
World Ranking
3918
National Ranking
41

Claus U. Hammer 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 Claus U. Hammer sits on this spectrum.

38–42 publications: 1 scientists 43–47 publications: 0 scientists 48–52 publications: 3 scientists 53–57 publications: 8 scientists 58–62 publications: 11 scientists 63–67 publications: 16 scientists 68–72 publications: 24 scientists 73–77 publications: 31 scientists 78–82 publications: 49 scientists 83–87 publications: 77 scientists 88–92 publications: 86 scientists 93–97 publications: 88 scientists 98–102 publications: 92 scientists 103–107 publications: 84 scientists 108–112 publications: 102 scientists 113–117 publications: 108 scientists 118–122 publications: 117 scientists 123–127 publications: 126 scientists 128–132 publications: 146 scientists 133–137 publications: 114 scientists 138–142 publications: 102 scientists 143–147 publications: 127 scientists 148–152 publications: 102 scientists 153–157 publications: 112 scientists 158–162 publications: 102 scientists 163–167 publications: 127 scientists 168–172 publications: 121 scientists 173–177 publications: 112 scientists 178–182 publications: 109 scientists 183–187 publications: 98 scientists 188–192 publications: 92 scientists 193–197 publications: 105 scientists 198–202 publications: 77 scientists 203–207 publications: 80 scientists 208–212 publications: 89 scientists 213–217 publications: 70 scientists 218–222 publications: 74 scientists 223–227 publications: 74 scientists 228–232 publications: 70 scientists 233–237 publications: 67 scientists 238–242 publications: 59 scientists 243–247 publications: 67 scientists 248–252 publications: 51 scientists 253–257 publications: 46 scientists 258–262 publications: 41 scientists 263–267 publications: 39 scientists 268–272 publications: 34 scientists 273–277 publications: 39 scientists 278–282 publications: 35 scientists 283–287 publications: 36 scientists 288–292 publications: 35 scientists 293–297 publications: 29 scientists 298–302 publications: 23 scientists 303–307 publications: 39 scientists 308–312 publications: 34 scientists 313–317 publications: 23 scientists 318–322 publications: 18 scientists 323–327 publications: 18 scientists 328–332 publications: 21 scientists 333–337 publications: 20 scientists 338–342 publications: 15 scientists 343–347 publications: 13 scientists 348–352 publications: 24 scientists 353–357 publications: 25 scientists 358–362 publications: 10 scientists 363–367 publications: 20 scientists 368–372 publications: 17 scientists 373–377 publications: 18 scientists 378–382 publications: 15 scientists 383–387 publications: 7 scientists 388–392 publications: 22 scientists 393–397 publications: 9 scientists 398–402 publications: 11 scientists 403–407 publications: 16 scientists 408–412 publications: 4 scientists 413–417 publications: 5 scientists 418–422 publications: 14 scientists 423–427 publications: 8 scientists 428–432 publications: 7 scientists 433–437 publications: 7 scientists 438–442 publications: 10 scientists 443–447 publications: 10 scientists 448–452 publications: 3 scientists 453–457 publications: 9 scientists 458–462 publications: 11 scientists 463–467 publications: 4 scientists 468–472 publications: 6 scientists 473–477 publications: 11 scientists 478–482 publications: 8 scientists 483–487 publications: 2 scientists 488–492 publications: 3 scientists 493–497 publications: 4 scientists 498–502 publications: 4 scientists 503–507 publications: 4 scientists 508–509 publications: 4 scientists 510+ publications: 100 scientists
38 publications 510+

This scientist: 88 publications — 5th percentile

5% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 510 publications or more.

Claus U. Hammer 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 Claus U. Hammer sits on this spectrum.

30 D-Index: 15 scientists 31 D-Index: 42 scientists 32 D-Index: 60 scientists 33 D-Index: 90 scientists 34 D-Index: 103 scientists 35 D-Index: 108 scientists 36 D-Index: 142 scientists 37 D-Index: 147 scientists 38 D-Index: 147 scientists 39 D-Index: 152 scientists 40 D-Index: 143 scientists 41 D-Index: 157 scientists 42 D-Index: 141 scientists 43 D-Index: 151 scientists 44 D-Index: 140 scientists 45 D-Index: 135 scientists 46 D-Index: 121 scientists 47 D-Index: 108 scientists 48 D-Index: 128 scientists 49 D-Index: 111 scientists 50 D-Index: 106 scientists 51 D-Index: 112 scientists 52 D-Index: 102 scientists 53 D-Index: 103 scientists 54 D-Index: 94 scientists 55 D-Index: 61 scientists 56 D-Index: 101 scientists 57 D-Index: 71 scientists 58 D-Index: 65 scientists 59 D-Index: 78 scientists 60 D-Index: 93 scientists 61 D-Index: 56 scientists 62 D-Index: 58 scientists 63 D-Index: 52 scientists 64 D-Index: 63 scientists 65 D-Index: 49 scientists 66 D-Index: 53 scientists 67 D-Index: 57 scientists 68 D-Index: 50 scientists 69 D-Index: 44 scientists 70 D-Index: 44 scientists 71 D-Index: 31 scientists 72 D-Index: 33 scientists 73 D-Index: 33 scientists 74 D-Index: 23 scientists 75 D-Index: 32 scientists 76 D-Index: 24 scientists 77 D-Index: 17 scientists 78 D-Index: 19 scientists 79 D-Index: 9 scientists 80 D-Index: 21 scientists 81 D-Index: 20 scientists 82 D-Index: 17 scientists 83 D-Index: 19 scientists 84 D-Index: 19 scientists 85 D-Index: 14 scientists 86 D-Index: 6 scientists 87 D-Index: 14 scientists 88 D-Index: 17 scientists 89 D-Index: 10 scientists 90 D-Index: 8 scientists 91 D-Index: 8 scientists 92 D-Index: 9 scientists 93 D-Index: 6 scientists 94+ D-Index: 98 scientists
30 D-Index 94+

This scientist: 47 D-Index — 48th percentile

48% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 94 D-Index or more.

Research.com Recognitions

  • 1998 - Member of Academia Europaea

Overview

Claus U. Hammer is affiliated with the University of Copenhagen in Denmark. Their academic profile includes a membership in Academia Europaea since 1998.

Throughout their career, Claus U. Hammer has contributed to the scientific community through various research activities aligned with their affiliation. Although specific publications, co-authors, or detailed research topics are not listed, their recognition as a member of Academia Europaea indicates involvement in European scholarly networks.

The membership in Academia Europaea, awarded in 1998, reflects an established presence within the academic field, often signifying contributions to research and scholarship recognized by peers across Europe.

Best Publications

  • Evidence for general instability of past climate from a 250-kyr ice-core record

    W. Dansgaard;S. J. Johnsen;S. J. Johnsen;H. B. Clausen;D. Dahl-Jensen

  • Irregular glacial interstadials recorded in a new Greenland ice core

    S. J. Johnsen;S. J. Johnsen;H. B. Clausen;W. Dansgaard;K. Fuhrer

  • Asynchrony of Antarctic and Greenland climate change during the last glacial period

    T. Blunier;J. Chappellaz;J. Schwander;A. Dällenbach

  • Greenland ice sheet evidence of post-glacial volcanism and its climatic impact

    C. U. Hammer;H. B. Clausen;W. Dansgaard

  • A new greenland deep ice core.

    W. Dansgaard;H. B. Clausen;N. Gundestrup;C. U. Hammer

  • Synchronized terrestrial-atmospheric deglacial records around the North Atlantic

    Svante Björck;Bernd Kromer;Sigfus Johnsen;Ole Bennike

  • Ash layers from Iceland in the Greenland GRIP ice core correlated with oceanic and land sediments

    Karl Grönvold;Níels Óskarsson;Sigfús J. Johnsen;Sigfús J. Johnsen;Henrik B. Clausen

  • The δ18O record along the Greenland Ice Core Project deep ice core and the problem of possible Eemian climatic instability

    Sigfus I. Johnsen;Henrik B. Clausen;Willi Dansgaard;Niels S. Gundestrup

  • North Atlantic climatic oscillations revealed by deep Greenland ice cores

    W. Dansgaard;S.J. Johnsen;H.B. Clausen;D. Dahl-Jensen

  • Holocene Climate Variability in Antarctica Based on 11 Ice-Core Isotopic Records

    Valérie Masson;Françoise Vimeux;Jean Jouzel;Vin Morgan

  • Acidity of Polar Ice Cores in Relation to Absolute Dating, Past Volcanism, and Radio–Echoes

    Unknown

  • Dating of Greenland ice cores by flow models, isotopes, volcanic debris, and continental dust

    C. U. Hammer;H. B. Clausen;W. Dansgaard;N. Gundestrup

  • Beryllium 10 in the Greenland Ice Core Project ice core at Summit, Greenland

    F. Yiou;G. M. Raisbeck;S. Baumgartner;J. Beer

  • Electrical conductivity measurements from the GISP2 and GRIP Greenland ice cores

    K. C. Taylor;C. U. Hammer;R. B. Alley;H. B. Clausen

  • Climatic changes, Norsemen and modern man

    W. Dansgaard;S. J. Johnsen;Niels Reeh;N. Gundestrup

  • Past volcanism revealed by Greenland Ice Sheet impurities

    C. U. Hammer

  • Continuous Impurity Analysis Along the Dye 3 Deep Core

    C. U. Hammer;H. B. Clausen;W. Dansgaard;A. Neftel

  • A comparison of the volcanic records over the past 4000 years from the Greenland Ice Core Project and Dye 3 Greenland ice cores

    Henrik B. Clausen;Claus U. Hammer;Christine S. Hvidberg;Dorthe Dahl-Jensen

  • The Laki and Tambora eruptions as revealed in Greenland ice cores from 11 locations

    H.B. Clausen;C.U. Hammer

  • Primary aerosol (sea salt and soil dust) deposited in Greenland ice during the last climatic cycle: Comparison with east Antarctic records

    M. De Angelis;J. P. Steffensen;M. Legrand;H. Clausen

  • New ice core evidence for a volcanic cause of the A.D. 536 dust veil

    L. B. Larsen;B. M. Vinther;B. M. Vinther;K. R. Briffa;T. M. Melvin

  • Characteristics and mass distribution of extraterrestrial dust from the Greenland ice cap

    M. Maurette;C. Jéhanno;E. Robin;C. Hammer

Frequent Co-Authors

Henrik Clausen
Henrik Clausen University of Copenhagen
Sigfus J Johnsen
Sigfus J Johnsen University of Copenhagen
Niels S. Gundestrup
Niels S. Gundestrup University of Copenhagen
Willi Dansgaard
Willi Dansgaard University of Copenhagen
Dorthe Dahl-Jensen
Dorthe Dahl-Jensen University of Copenhagen
Jean Jouzel
Jean Jouzel Laboratoire des Sciences du Climat et de l'Environnement
Niels Reeh
Niels Reeh University of Southern Denmark
John C. Moore
John C. Moore Beijing Normal University
Jørgen Peder Steffensen
Jørgen Peder Steffensen University of Copenhagen
Eric W. Wolff
Eric W. Wolff University of Cambridge

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