World's Best Scientists 2026 revealed!

D-Index & Metrics

Earth Science

D-Index
75
Citations
25624
World Ranking
695
National Ranking
334

John Karl Böhlke 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 John Karl Böhlke 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: 207 publications — 63rd percentile

63% of scientists in this discipline score the same or lower.

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

John Karl Böhlke 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 John Karl Böhlke 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: 75 D-Index — 92nd percentile

92% 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

  • Fellow of the Geological Society of America
  • Fellow of the Geological Society of America
  • Fellow of the Geological Society of America

Overview

John Karl Böhlke is affiliated with the United States Geological Survey in the United States. Their research activity is concentrated in Environmental Science, with particular emphasis on subfields such as Geochemistry and Petrology, Health, Toxicology and Mutagenesis, Ecology, Environmental Chemistry, and Global and Planetary Change.

The scientist's work covers several main topics, including:

  • Groundwater and Isotope Geochemistry
  • Isotope Analysis in Ecology
  • Soil and Water Nutrient Dynamics
  • Chemical Analysis and Environmental Impact
  • Water Treatment and Disinfection
  • Mass Spectrometry Techniques and Applications
  • Groundwater flow and contamination studies

John Karl Böhlke has contributed to multiple research papers published in well-known scientific venues. Selected recent papers include:

  • "Standard atomic weights of the elements 2021 (IUPAC Technical Report)," 2022, published in Pure and Applied Chemistry
  • "Minimum requirements for publishing hydrogen, carbon, nitrogen, oxygen and sulfur stable-isotope delta results (IUPAC Technical Report)," 2022, published in Pure and Applied Chemistry
  • "Exploring the Potential of Electrospray-Orbitrap for Stable Isotope Analysis Using Nitrate as a Model," 2021, published in Analytical Chemistry
  • "Determination of vadose zone and saturated zone nitrate lag times using long-term groundwater monitoring data and statistical machine learning," 2021, published in Hydrology and earth system sciences
  • "DGMETA (version 1)-Dissolved gas modeling and environmental tracer analysis computer program," 2020, published in Techniques and methods

Frequent publication venues in which Böhlke has appeared include:

  • Pure and Applied Chemistry
  • Environmental Monitoring and Assessment
  • IUPAC Standards Online
  • Analytical Chemistry
  • Hydrology and earth system sciences

The scientist has collaborated frequently with several coauthors, including:

  • S. Mroczkowski
  • Tyler B. Coplen
  • Philip J. H. Dunn
  • Manfred Gröning
  • Harro A. J. Meijer

John Karl Böhlke is a Fellow of the Geological Society of America, indicating recognition within the professional community.

Best Publications

  • A Bacterial Method for the Nitrogen Isotopic Analysis of Nitrate in Seawater and Freshwater

    D.M. Sigman;K.L. Casciotti;M. Andreani;C. Barford

  • Denitrification across landscapes and waterscapes: a synthesis.

    Sybil P. Seitzinger;John A. Harrison;John K. Bohlke;A. F. Bouwman

  • Measurement of the Oxygen Isotopic Composition of Nitrate in Seawater and Freshwater Using the Denitrifier Method

    K L Casciotti;D M Sigman;M Galanter Hastings;J K Böhlke

  • Atomic weights of the elements. Review 2000 (IUPAC Technical Report)

    John R. de Laeter;John Karl Böhlke;P. De Bièvre;H. Hidaka

  • METHODS FOR MEASURING DENITRIFICATION: DIVERSE APPROACHES TO A DIFFICULT PROBLEM

    Peter M. Groffman;Mark A. Altabet;John K. Bohlke;Klaus Butterbach-Bahl

  • Combined Use of Groundwater Dating, Chemical, and Isotopic Analyses to Resolve the History and Fate of Nitrate Contamination in Two Agricultural Watersheds, Atlantic Coastal Plain, Maryland

    J. K. Böhlke;J. M. Denver

  • Groundwater recharge and agricultural contamination

    Unknown

  • Isotope-abundance variations of selected elements (IUPAC Technical Report)

    Tyler B. Coplen;John Karl Böhlke;P. De Bièvre;T. Ding

  • Oxygen isotopes in nitrate: new reference materials for 18O:17O:16O measurements and observations on nitrate-water equilibration.

    J. K. Böhlke;S. J. Mroczkowski;T. B. Coplen

  • Atomic weights of the elements 2011 (IUPAC Technical Report)

    Michael E. Wieser;Norman Holden;Tyler B. Coplen;John K. Böhlke

  • Methane-hydrogen gas seeps, zambales ophiolite, philippines: deep or shallow origin?

    T.A. Abrajano;N.C. Sturchio;J.K. Bohlke;G.L. Lyon

  • Hyporheic zone denitrification: Controls on effective reaction depth and contribution to whole-stream mass balance

    Judson W. Harvey;John Karl Böhlke;Mary A. Voytek;Durelle Scott

  • Compilation of minimum and maximum isotope ratios of selected elements in naturally occurring terrestrial materials and reagents

    T.B. Coplen;J.A. Hopple;J.K. Böhlke;H.S. Peiser

  • Long term atmospheric deposition as the source of nitrate and other salts in the Atacama Desert, Chile: New evidence from mass-independent oxygen isotopic compositions

    Greg Michalski;J.K. Böhlke;Mark Thiemens

  • Isotopic Compositions of the Elements, 2001

    J. K. Böhlke;J. R. de Laeter;P. De Bièvre;H. Hidaka

  • Denitrification in the recharge area and discharge area of a transient agricultural nitrate plume in a glacial outwash sand aquifer, Minnesota

    J.K. Böhlke;R. Wanty;M. Tuttle;G. Delin

  • Determining Timescales for Groundwater Flow and Solute Transport

    Peter G. Cook;John-Karl Böhlke

  • Two new organic reference materials for δ13C and δ15N measurements and a new value for the δ13C of NBS 22 oil

    Haiping Qi;Tyler B. Coplen;Heike Geilmann;Willi A. Brand

  • Stable isotope evidence for an atmospheric origin of desert nitrate deposits in northern Chile and southern California, U.S.A.

    J.K. Böhlke;G.E. Ericksen;K. Revesz

  • Dynamic modeling of nitrogen losses in river networks unravels the coupled effects of hydrological and biogeochemical processes

    Richard B. Alexander;John Karl Böhlke;Elizabeth W. Boyer;Mark B. David

  • Stable isotopes in mid-ocean ridge hydrothermal systems: Interactions between fluids, minerals, and organisms

    Wayne C. Shanks;John K. Böhlke;Robert R. Seal

  • Ammonium transport and reaction in contaminated groundwater: Application of isotope tracers and isotope fractionation studies

    J. K. Böhlke;Richard L. Smith;Daniel N. Miller;Daniel N. Miller

  • Groundwater residence times in Shenandoah National Park, Blue Ridge Mountains, Virginia, USA: a multi-tracer approach

    L.N. Plummer;E. Busenberg;J.K. Böhlke;D.L. Nelms

Frequent Co-Authors

Neil C. Sturchio
Neil C. Sturchio University of Delaware
Baohua Gu
Baohua Gu Oak Ridge National Laboratory
Craig R. Tobias
Craig R. Tobias University of Connecticut
Tyler B. Coplen
Tyler B. Coplen United States Geological Survey
Peter B. McMahon
Peter B. McMahon United States Geological Survey
Judson W. Harvey
Judson W. Harvey United States Geological Survey
Mary A. Voytek
Mary A. Voytek National Aeronautics and Space Administration
Alfonso F. Davila
Alfonso F. Davila Ames Research Center
Eurybiades Busenberg
Eurybiades Busenberg United States Geological Survey
Karen L. Casciotti
Karen L. Casciotti Stanford University

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