World's Best Scientists 2026 revealed!

D-Index & Metrics

Earth Science

D-Index
39
Citations
4610
World Ranking
6287
National Ranking
2232

Nicolas Cassar 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 Nicolas Cassar sits on this spectrum.

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 publications 603+

This scientist: 127 publications — 26th percentile

26% of scientists in this discipline score the same or lower.

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

Nicolas Cassar 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 Nicolas Cassar sits on this spectrum.

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.

Research.com Recognitions

  • 2012 - Fellow of Alfred P. Sloan Foundation

Overview

Nicolas Cassar is affiliated with Duke University in the United States and has contributed extensively to the fields of Earth and Planetary Sciences and Environmental Science. Their research predominantly focuses on oceanographic processes, marine ecosystems, and environmental dynamics.

The scientist's main areas of study include:

  • Earth and Planetary Sciences
  • Environmental Science

Within these broad fields, Cassar works across several subfields, such as:

  • Oceanography
  • Ecology
  • Global and Planetary Change
  • Atmospheric Science
  • Environmental Chemistry

The topics addressed in their work emphasize marine environments and atmospheric interactions, comprising:

  • Marine and coastal ecosystems
  • Oceanographic and Atmospheric Processes
  • Marine Biology and Ecology Research
  • Marine and fisheries research
  • Isotope Analysis in Ecology
  • Atmospheric and Environmental Gas Dynamics
  • Methane Hydrates and Related Phenomena

Cassar has published scientific papers in several prominent venues, including:

  • Zenodo (CERN European Organization for Nuclear Research)
  • bioRxiv (Cold Spring Harbor Laboratory)
  • Global Biogeochemical Cycles
  • Elementa Science of the Anthropocene
  • Nature Communications

Some of their recent scientific papers include:

  • Widespread phytoplankton blooms triggered by 2019-2020 Australian wildfires (2021, Nature)
  • Global Estimates of Marine Gross Primary Production Based on Machine Learning Upscaling of Field Observations (2021, Global Biogeochemical Cycles)
  • New insights into the distributions of nitrogen fixation and diazotrophs revealed by high-resolution sensing and sampling methods (2020, The ISME Journal)
  • An operational overview of the EXport Processes in the Ocean from RemoTe Sensing (EXPORTS) Northeast Pacific field deployment (2021, Elementa Science of the Anthropocene)
  • A call for refining the role of humic-like substances in the oceanic iron cycle (2020, Scientific Reports)

Frequent collaborators in their research include:

  • Yajuan Lin
  • Guillaume Bourdin
  • Weiyi Tang
  • Emmanuel Boss
  • Yibin Huang

In 2012, Nicolas Cassar was recognized as a Fellow of the Alfred P. Sloan Foundation.

Best Publications

  • Isotope fractionation and atmospheric oxygen: implications for phanerozoic O(2) evolution

    R. A. Berner;S. T. Petsch;J. A. Lake;D. J. Beerling

  • The Southern Ocean Biological Response to Aeolian Iron Deposition

    Nicolas Cassar;Nicolas Cassar;Nicolas Cassar;Michael L. Bender;Michael L. Bender;Michael L. Bender;Bruce A. Barnett;Bruce A. Barnett;Bruce A. Barnett;Songmiao Fan;Songmiao Fan;Songmiao Fan

  • Widespread phytoplankton blooms triggered by 2019–2020 Australian wildfires

    Weiyi Tang;Weiyi Tang;Joan Llort;Jakob Weis;Jakob Weis;Morgane M. G. Perron

  • Interannual sea-air CO2 flux variability from an observation-driven ocean mixed-layer scheme

    Christian Rödenbeck;Dorothée C.E. Bakker;Nicolas Metzl;Are Olsen;Are Olsen

  • Revisiting the distribution of oceanic N2 fixation and estimating diazotrophic contribution to marine production

    Weiyi Tang;Seaver Wang;Debany Fonseca-Batista;Frank Dehairs

  • Bicarbonate uptake by Southern Ocean phytoplankton

    Nicolas Cassar;Nicolas Cassar;Edward A. Laws;Robert R. Bidigare;Brian N. Popp

  • Iron fertilization enhanced net community production but not downward particle flux during the Southern Ocean iron fertilization experiment LOHAFEX

    Patrick Martin;Michiel Rutgers van der Loeff;Nicolas Cassar;Pieter Vandromme;Pieter Vandromme

  • Net community production and gross primary production rates in the western equatorial Pacific

    Rachel H. R. Stanley;Rachel H. R. Stanley;John B. Kirkpatrick;Nicolas Cassar;Nicolas Cassar;Bruce A. Barnett

  • Atmospheric O2/N2 changes, 1993–2002: Implications for the partitioning of fossil fuel CO2 sequestration

    Michael L. Bender;David T. Ho;Melissa B. Hendricks;Robert Mika

  • Diatom elemental and morphological changes in response to iron limitation: a brief review with potential paleoceanographic applications

    A. Marchetti;N. Cassar

  • 13C discrimination patterns in oceanic phytoplankton: likely influence of CO2 concentrating mechanisms, and implications for palaeoreconstructions

    Edward A Laws;Brian N Popp;Nicolas Cassar;Jamie Tanimoto

  • The influence of iron and light on net community production in the Subantarctic and Polar Frontal Zones

    N. Cassar;N. Cassar;P. J. DiFiore;B. A. Barnett;M. L. Bender

  • NanoSIMS single cell analyses reveal the contrasting nitrogen sources for small phytoplankton

    Hugo Berthelot;Solange Duhamel;Stéphane L’Helguen;Jean-Francois Maguer

  • Dissolved O2/Ar and other methods reveal rapid changes in productivity during a Lagrangian experiment in the Southern Ocean

    Roberta C. Hamme;Nicolas Cassar;Veronica P. Lance;Veronica P. Lance;Robert D. Vaillancourt

  • Marine diatom proteorhodopsins and their potential role in coping with low iron availability.

    Adrian Marchetti;Dylan Catlett;Brian M Hopkinson;Kelsey Ellis

  • The Southern Kalahari: a potential new dust source in the Southern Hemisphere?

    Abinash Bhattachan;Paolo D’Odorico;Matthew C Baddock;Ted M Zobeck

  • Machine Learning Estimates of Global Marine Nitrogen Fixation

    Weiyi Tang;Zuchuan Li;Nicolas Cassar;Nicolas Cassar

  • Export production and its regulating factors in the West Antarctica Peninsula region of the Southern Ocean

    Kuan Huang;Hugh W. Ducklow;Maria Vernet;Nicolas Cassar

  • Towards Quantitative Microbiome Community Profiling Using Internal Standards

    Yajuan Lin;Yajuan Lin;Scott Gifford;Hugh Ducklow;Oscar Schofield

  • Evaluating gas transfer velocity parameterizations using upper ocean radon distributions

    Michael L. Bender;Saul Kinter;Nicolas Cassar;Nicolas Cassar;Rik Wanninkhof

  • Data-Driven Modeling of the Distribution of Diazotrophs in the Global Ocean

    Weiyi Tang;Weiyi Tang;Nicolas Cassar;Nicolas Cassar

  • Carbon isotopic fractionation by the marine diatom Phaeodactylum tricornutum under nutrient- and light-limited growth conditions

    Nicolas Cassar;Edward A. Laws;Brian N. Popp

Frequent Co-Authors

Michael L. Bender
Michael L. Bender Princeton University
Bronte Tilbrook
Bronte Tilbrook CSIRO Marine and Atmospheric Research
Michiel M Rutgers van der Loeff
Michiel M Rutgers van der Loeff Alfred Wegener Institute for Polar and Marine Research
Richard S. Lampitt
Richard S. Lampitt National Oceanography Centre
Lars Stemmann
Lars Stemmann Sorbonne University
Humberto E. González
Humberto E. González Austral University of Chile
Hiram Levy
Hiram Levy Geophysical Fluid Dynamics Laboratory
Francesco Cinelli
Francesco Cinelli University of Pisa
Edward A. Laws
Edward A. Laws Louisiana State University
Brian N. Popp
Brian N. Popp University of Hawaii at Manoa

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Related Online Degrees & Career Pathways

For those interested in expanding their expertise alongside Earth Science, pursuing related online degrees can open diverse career pathways. For example, creative professionals might explore affordable options by checking out mfa online programs, which offer flexible study plans that blend artistic skills with environmental themes.

Additionally, management roles within environmental organizations often require strong leadership capabilities. An online masters degree in human resource management helps develop essential skills in team coordination and organizational development, which are valuable when managing multidisciplinary Earth Science teams.

Many Earth Science learners and professionals are lifelong learners, including seniors seeking to enhance their knowledge or pivot careers. The growing availability of online degrees for seniors makes continuing education accessible without disrupting personal commitments.

Lastly, professionals interested in integrating information science with Earth Science research may consider programs from ala-accredited schools. These courses provide skills in data management and archiving, essential for handling large environmental datasets.

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