World's Best Scientists 2026 revealed!

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Earth Science 39 6253 5795 2223 1976 155 4918

Alan D. Wanamaker publications per year

The chart shows the history of publications by Alan D. Wanamaker between 2004 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Alan D. Wanamaker published across 22 years, from 2004 to 2025, averaging 7.8 papers a year. Output peaked at 22 publications in 2019. 8 of the 172 publications appeared in the last two years.

No. of publications
5 10 15 20
Bar chart. Horizontal axis: year, 2004 to 2025. Vertical axis: number of publications, 0 to 22. Peak 22 publications in 2019. 2004: 1 publication 2005: 0 publications 2006: 1 publication 2007: 2 publications 2008: 9 publications 2009: 12 publications 2010: 7 publications 2011: 5 publications 2012: 6 publications 2013: 14 publications 2014: 3 publications 2015: 5 publications 2016: 13 publications 2017: 15 publications 2018: 14 publications 2019: 22 publications 2020: 13 publications 2021: 8 publications 2022: 7 publications 2023: 7 publications 2024: 5 publications 2025: 3 publications
2004 2025

172 publications in total across all disciplines

View publications per year as a table
Alan D. Wanamaker: publications per year, 2004 to 2025
Year Publications
2004 1
2005 0
2006 1
2007 2
2008 9
2009 12
2010 7
2011 5
2012 6
2013 14
2014 3
2015 5
2016 13
2017 15
2018 14
2019 22
2020 13
2021 8
2022 7
2023 7
2024 5
2025 3
Total 172
Download as CSV

Alan D. Wanamaker 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 Alan D. Wanamaker 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, 148–157 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: 155 publications — 42nd percentile

42% 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
148–157 495 155
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
Download as CSV

Alan D. Wanamaker 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 Alan D. Wanamaker 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, 39 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: 39 D-Index — 35th percentile

35% 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 39
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
Download as CSV

Overview

Alan D. Wanamaker is affiliated with Iowa State University in the United States. The scientist's research primarily focuses on Earth and Planetary Sciences and Environmental Science, with significant work in several related subfields. Key areas of study include Atmospheric Science, Ecology, Global and Planetary Change, Oceanography, and Geophysics.

Their work addresses diverse topics such as Geology and Paleoclimatology Research, Isotope Analysis in Ecology, Climate variability and models, Tree-ring climate responses, Marine Bivalve and Aquaculture Studies, Methane Hydrates and Related Phenomena, and Archaeology and ancient environmental studies.

Alan D. Wanamaker has published extensively, including 44 papers in Earth and Planetary Sciences and 31 in Environmental Science. Publications appear frequently in venues such as Abstracts with programs - Geological Society of America, Nature Geoscience, Quaternary Research, Journal of Geophysical Research Oceans, and Ecosystems.

  • Abstracts with programs - Geological Society of America
  • Nature Geoscience
  • Quaternary Research
  • Journal of Geophysical Research Oceans
  • Ecosystems

Several recent papers exemplify their research scope and collaborative nature. These include:

  • Atlantic circulation change still uncertain, 2022, Nature Geoscience
  • Twentieth-century Azores High expansion unprecedented in the past 1,200 years, 2022, Nature Geoscience
  • Eutrophication Drives Extreme Seasonal CO2 Flux in Lake Ecosystems, 2020, Ecosystems
  • Hydroclimate variability from western Iberia (Portugal) during the Holocene: Insights from a composite stalagmite isotope record, 2020, The Holocene
  • Rapid 20th century warming reverses 900-year cooling in the Gulf of Maine, 2022, Communications Earth & Environment

Alan D. Wanamaker has collaborated frequently with other researchers, including Caroline C. Ummenhofer, Diana L. Thatcher, Yemane Asmerom, Victor J. Polyak, and David P. Gillikin. Multiple joint publications indicate sustained research partnerships.

  • Caroline C. Ummenhofer
  • Diana L. Thatcher
  • Yemane Asmerom
  • Victor J. Polyak
  • David P. Gillikin

Best Publications

  • Variability of marine climate on the North Icelandic Shelf in a 1357-year proxy archive based on growth increments in the bivalve Arctica islandica

    Paul G. Butler;Alan D. Jnr Wanamaker;James D. Scourse;Christopher A. Richardson

  • Carbonate clumped isotope compositions of modern marine mollusk and brachiopod shells

    Gregory A. Henkes;Benjamin H. Passey;Alan D. Wanamaker;Ethan L. Grossman

  • surface changes in the north Atlantic meridional overturning circulation during the last millennium

    Alan D. Wanamaker;Paul G. Butler;James D. Scourse;Jan Heinemeier

  • Very Long-Lived Mollusks Confirm 17th Century AD Tephra-Based Radiocarbon Reservoir Ages for North Icelandic Shelf Waters

    Alan D Wanamaker;Jan Heinemeier;James D Scourse;Christopher A Richardson

  • A Stalagmite record of Holocene Indonesian–Australian summer monsoon variability from the Australian tropics

    Rhawn F. Denniston;Karl-Heinz Wyrwoll;Victor J. Polyak;Josephine R. Brown

  • Marine climate in the Irish Sea: analysis of a 489-year marine master chronology derived from growth increments in the shell of the clam Arctica islandica

    Paul G. Butler;Christopher A. Richardson;James D. Scourse;Alan D. Wanamaker

  • Coupled North Atlantic slope water forcing on Gulf of Maine temperatures over the past millennium

    Alan D. Wanamaker;Alan D. Wanamaker;Karl J. Kreutz;Bernd R. Schöne;Neal Pettigrew

  • The influence of temperature and seawater carbonate saturation state on 13C–18O bond ordering in bivalve mollusks

    R A Eagle;R A Eagle;J M Eiler;Aradhna K Tripati;Justin B Ries

  • Continuous marine radiocarbon reservoir calibration and the 13C Suess effect in the Irish Sea: Results from the first multi-centennial shell-based marine master chronology

    Paul G. Butler;James D. Scourse;Christopher A. Richardson;Alan D. Wanamaker

  • Experimentally determined Mg/Ca and Sr/Ca ratios in juvenile bivalve calcite for Mytilus edulis: implications for paleotemperature reconstructions

    Alan D. Wanamaker;Alan D. Wanamaker;Karl J. Kreutz;Tiffany Wilson;Harold W. Borns

  • Experimental Determination of Salinity, Temperature, Growth, and Metabolic Effects on Shell Isotope Chemistry of Mytilus edulis Collected from Maine and Greenland

    Alan D. Wanamaker;Karl J. Kreutz;Harold W. Borns;Douglas S. Introne

  • Coralline red algae as high-resolution climate recorders

    J. Halfar;R. S. Steneck;M. Joachimski;A. Kronz

  • Annually resolved North Atlantic marine climate over the last millennium.

    David J. Reynolds;J.D. Scourse;P.R. Halloran;A. Nederbragt

  • Variability in the Northern North Atlantic and Arctic Oceans Across the Last Two Millennia: A Review

    Paola Moffa-Sánchez;Paola Moffa-Sánchez;E. Moreno-Chamarro;D. J. Reynolds;D. J. Reynolds;P. Ortega

  • The value of crossdating to retain high-frequency variability, climate signals, and extreme events in environmental proxies

    Bryan A. Black;Daniel Griffin;Peter van der Sleen;Alan D. Wanamaker

  • Gulf of Maine shells reveal changes in seawater temperature seasonality during the Medieval Climate Anomaly and the Little Ice Age

    Alan D. Wanamaker;Karl J. Kreutz;Bernd R. Schöne;Douglas S. Introne

  • Linking large‐scale climate variability with Arctica islandica shell growth and geochemistry in northern Norway

    Madelyn J. Mette;Alan D. Wanamaker;Michael L. Carroll;William G. Ambrose

  • Expansion and Contraction of the Indo-Pacific Tropical Rain Belt over the Last Three Millennia.

    Rhawn F. Denniston;Caroline C. Ummenhofer;Alan D. Wanamaker;Matthew S. Lachniet

  • Extreme rainfall activity in the Australian tropics reflects changes in the El Niño/Southern Oscillation over the last two millennia

    Rhawn F. Denniston;Gabriele Villarini;Angelique N. Gonzales;Karl-Heinz Wyrwoll

  • Twentieth-century Azores High expansion unprecedented in the past 1,200 years

    Unknown

  • Experimental validation of environmental controls on the δ13C of Arctica islandica (ocean quahog) shell carbonate

    Erin C. Beirne;Alan D. Wanamaker;Scott C. Feindel

  • A late Holocene paleo-productivity record in the western Gulf of Maine, USA, inferred from growth histories of the long-lived ocean quahog (Arctica islandica)

    Alan D. Wanamaker;Karl J. Kreutz;Bernd R. Schöne;Kirk A. Maasch

Frequent Co-Authors

James D. Scourse
James D. Scourse University of Exeter
Christopher A. Richardson
Christopher A. Richardson Bangor University
David P. Gillikin
David P. Gillikin Union College
Bernd R. Schöne
Bernd R. Schöne Johannes Gutenberg University of Mainz
Caroline C. Ummenhofer
Caroline C. Ummenhofer Woods Hole Oceanographic Institution
Victor J. Polyak
Victor J. Polyak University of New Mexico
Karl J. Kreutz
Karl J. Kreutz University of Maine
Yemane Asmerom
Yemane Asmerom University of New Mexico
Jón Eiríksson
Jón Eiríksson University of Iceland
William F. Humphreys
William F. Humphreys Australian Museum

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Related Online Degrees & Career Pathways

Pursuing a degree in Earth Science opens doors to various career paths in environmental consulting, geology, meteorology, and natural resource management. Many students today look for flexible options that allow them to balance education with other commitments, making online degrees a popular choice.

For veterans interested in shifting careers, programs like military friendly online photography degree programs illustrate how tailored online education can accommodate unique needs and experiences. Similarly, language skills are increasingly valued in Earth Science careers focused on international collaboration, with affordable options such as a spanish online degree providing valuable communication tools.

Veterans can also benefit from specialized offerings like an online spanish bachelor degree for veterans, which helps bridge educational and professional transitions. For those interested in creative expressions of science through visual arts, researching top options such as the mfa online programs can offer additional career versatility.

Exploring these varied online degree routes can help students and professionals tailor their Earth Science education to fit both their interests and lifestyle demands.

Best Scientists Citing Alan D. Wanamaker

Trending Scientists

Recently Published Articles