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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Earth Science 59 2049 1854 134 124 688 11849

Ralf Tiedemann publications per year

The chart shows the history of publications by Ralf Tiedemann between 1986 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Ralf Tiedemann published across 40 years, from 1986 to 2025, averaging 18.3 papers a year. Output peaked at 98 publications in 2016. 13 of the 732 publications appeared in the last two years.

No. of publications
20 40 60 80
Bar chart. Horizontal axis: year, 1986 to 2025. Vertical axis: number of publications, 0 to 98. Peak 98 publications in 2016. 1986: 1 publication 1987: 0 publications 1988: 0 publications 1989: 17 publications 1990: 1 publication 1991: 4 publications 1992: 3 publications 1993: 0 publications 1994: 7 publications 1995: 5 publications 1996: 2 publications 1997: 4 publications 1998: 15 publications 1999: 12 publications 2000: 6 publications 2001: 11 publications 2002: 23 publications 2003: 9 publications 2004: 22 publications 2005: 18 publications 2006: 25 publications 2007: 12 publications 2008: 7 publications 2009: 12 publications 2010: 5 publications 2011: 30 publications 2012: 24 publications 2013: 71 publications 2014: 51 publications 2015: 72 publications 2016: 98 publications 2017: 39 publications 2018: 33 publications 2019: 22 publications 2020: 26 publications 2021: 13 publications 2022: 10 publications 2023: 9 publications 2024: 3 publications 2025: 10 publications
1986 2025

732 publications in total across all disciplines

View publications per year as a table
Ralf Tiedemann: publications per year, 1986 to 2025
Year Publications
1986 1
1987 0
1988 0
1989 17
1990 1
1991 4
1992 3
1993 0
1994 7
1995 5
1996 2
1997 4
1998 15
1999 12
2000 6
2001 11
2002 23
2003 9
2004 22
2005 18
2006 25
2007 12
2008 7
2009 12
2010 5
2011 30
2012 24
2013 71
2014 51
2015 72
2016 98
2017 39
2018 33
2019 22
2020 26
2021 13
2022 10
2023 9
2024 3
2025 10
Total 732
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Ralf Tiedemann 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 Ralf Tiedemann 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: 688 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+ 100 688
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Ralf Tiedemann 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 Ralf Tiedemann 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, 59 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: 59 D-Index — 79th percentile

79% 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 59
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
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Overview

Ralf Tiedemann is affiliated with the Alfred Wegener Institute for Polar and Marine Research in Germany. Their research primarily spans the fields of Earth and Planetary Sciences as well as Engineering.

Their expertise covers multiple subfields including Atmospheric Science, Ocean Engineering, Ecology, Environmental Chemistry, and Mechanical Engineering. The scientist's work addresses key topics such as Geology and Paleoclimatology Research, Drilling and Well Engineering, Methane Hydrates and Related Phenomena, Hydraulic Fracturing and Reservoir Analysis, Reservoir Engineering and Simulation Methods, Isotope Analysis in Ecology, and Geological formations and processes.

Ralf Tiedemann has contributed to several recent publications notable for their focus on paleoclimate and oceanographic studies. These papers include:

  • "Orbital- and millennial-scale Antarctic Circumpolar Current variability in Drake Passage over the past 140,000 years" (2021, Nature Communications)
  • "Five million years of Antarctic Circumpolar Current strength variability" (2024, Nature)
  • "Marine ecosystem shifts with deglacial sea-ice loss inferred from ancient DNA shotgun sequencing" (2023, Nature Communications)
  • "Detailed Seismic Bathymetry Beneath Ekström Ice Shelf, Antarctica: Implications for Glacial History and Ice-Ocean Interaction" (2020, Geophysical Research Letters)
  • "Radiocarbon Evidence for the Contribution of the Southern Indian Ocean to the Evolution of Atmospheric CO2 Over the Last 32,000 Years" (2020, Paleoceanography and Paleoclimatology)

The researcher frequently collaborates with colleagues whose contributions span multiple joint projects. Frequent co-authors include:

  • Lester Lembke-Jene
  • Peter B deMenocal
  • Frank Lamy
  • Torsten Bickert
  • Dirk Nürnberg

Ralf Tiedemann publishes regularly in scientific venues that support open research and earth science disciplines. Frequent publication venues for their work include:

  • Zenodo (CERN European Organization for Nuclear Research)
  • OPAL (Open@LaTrobe) (La Trobe University)
  • Frontiers in Earth Science
  • Nature Communications
  • Paleoceanography and Paleoclimatology

Best Publications

  • Effect of the formation of the Isthmus of Panama on Atlantic Ocean thermohaline circulation

    Gerald H. Haug;Ralf Tiedemann

  • Astronomic timescale for the Pliocene Atlantic δ18O and dust flux records of Ocean Drilling Program Site 659

    Ralf Tiedemann;Michael Sarnthein;Nicholas J. Shackleton

  • North Pacific seasonality and the glaciation of North America 2.7 million years ago

    Gerald H. Haug;Andrey Ganopolski;Daniel Mikhail Sigman;Antoni Rosell-Mele

  • Role of Panama uplift on oceanic freshwater balance

    Gerald H. Haug;Ralf Tiedemann;Rainer Zahn;A. Christina Ravelo

  • Onset of permanent stratification in the subarctic Pacific Ocean

    Gerald H. Haug;Gerald H. Haug;Daniel Mikhail Sigman;Ralf Tiedemann;Thomas F. Pedersen

  • Mid-Pliocene climate change amplified by a switch in Indonesian subsurface throughflow.

    Cyrus Karas;Dirk Nürnberg;Anil K. Gupta;Ralf Tiedemann

  • Molecular record of secular sea surface temperature changes on 100-year timescales for glacial terminations I, II and IV

    Geoffrey Eglinton;Stuart. Bradshaw;Antoni Resell;Michael Sarnthein

  • Early Pliocene increase in thermohaline overturning: A precondition for the development of the modern equatorial Pacific cold tongue

    Silke Steph;Silke Steph;Silke Steph;Ralf Tiedemann;Matthias Prange;Jeroen Groeneveld

  • Sea surface temperature variability and sea‐ice extent in the subarctic northwest Pacific during the past 15,000 years

    Lars Max;Jan-Rainer Riethdorf;Ralf Tiedemann;Maria Smirnova

  • Chlorin accumulation rate as a proxy for Quaternary marine primary productivity

    P. G. Harris;P. G. Harris;M. Zhao;A. Rosell-Melé;Ralf Tiedemann

  • Eccentricity forcing of Pliocene-Early Pleistocene climate revealed in a marine oxygen-isotope record

    Steven C. Clemens;Ralf Tiedemann

  • Environmental change in the Sea of Okhotsk during the last 1.1 million years

    Dirk Nürnberg;Ralf Tiedemann

  • Stable Isotopes of Planktonic Foraminifera From Tropical Atlantic/Caribbean Core-Tops: Implications for Reconstructing Upper Ocean Stratification

    Silke Steph;Marcus Regenberg;Ralf Tiedemann;Stefan Mulitza

  • Assessing the effect of dissolution on planktonic foraminiferal Mg/Ca ratios: Evidence from Caribbean core tops

    Marcus Regenberg;Dirk Nürnberg;Silke Steph;Silke Steph;Jeroen Groeneveld;Jeroen Groeneveld

  • Calibrating Mg/Ca ratios of multiple planktonic foraminiferal species with δ 18 O-calcification temperatures: Paleothermometry for the upper water column

    Marcus Regenberg;Marcus Regenberg;Silke Steph;Silke Steph;Silke Steph;Dirk Nürnberg;Ralf Tiedemann

  • Younger Dryas‐Style Cooling Events at Glacial Terminations I‐VI at ODP Site 658: Associated benthic δ13C anomalies constrain meltwater hypothesis

    Michael Sarnthein;Ralf Tiedemann

  • Late Miocene to Pleistocene Evolution of Climate in Africa and the Low-Latitude Atlantic: Overview of Leg 108 Results

    W.F. Ruddiman;M. Sarnthein;J. Backman;J.G. Baldauf

  • Arctic Ocean evidence for late Quaternary initiation of northern Eurasian ice sheets

    Robert F. Spielhagen;Georges Bonani;Anton Eisenhauer;Martin Frank

  • Climatic changes in the western Sahara: Aeolo-marine sediment record of the last 8 million years (Sites 657-661)

    Ralf Tiedemann;M. Sarnthein;Rüdiger Stein

  • Glacial reduction and millennial-scale variations in Drake Passage throughflow

    Frank Lamy;Helge W Arz;Rolf Kilian;Rolf Kilian;Carina Beatriz Lange

  • Synchronous and proportional deglacial changes in Atlantic meridional overturning and northeast Brazilian precipitation

    Stefan Mulitza;Cristiano M. Chiessi;Enno Schefuß;Jörg Lippold

  • Changes in Caribbean surface hydrography during the Pliocene shoaling of the Central American Seaway

    Silke Steph;Ralf Tiedemann;Matthias Prange;Jeroen Groeneveld

Frequent Co-Authors

Frank Lamy
Frank Lamy Alfred Wegener Institute for Polar and Marine Research
Rainer Gersonde
Rainer Gersonde Alfred Wegener Institute for Polar and Marine Research
Stefan Mulitza
Stefan Mulitza University of Bremen
Gerald H. Haug
Gerald H. Haug Max Planck Institute for Chemistry
Andrea Abelmann
Andrea Abelmann Alfred Wegener Institute for Polar and Marine Research
Cristiano Mazur Chiessi
Cristiano Mazur Chiessi Universidade de São Paulo
Gerrit Lohmann
Gerrit Lohmann University of Bremen
Enno Schefuß
Enno Schefuß University of Bremen
Torsten Bickert
Torsten Bickert University of Bremen
Michael Schulz
Michael Schulz Norwegian Meteorological Institute

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