World's Best Scientists 2026 revealed!

D-Index & Metrics

Environmental Sciences

D-Index
44
Citations
7482
World Ranking
6737
National Ranking
2406

Ira Leifer publication distribution in Environmental Sciences in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Environmental Sciences in 2026. The highlighted bar marks where Ira Leifer sits on this spectrum.

41–50 publications: 21 scientists 51–60 publications: 62 scientists 61–70 publications: 133 scientists 71–80 publications: 257 scientists 81–90 publications: 361 scientists 91–100 publications: 440 scientists 101–110 publications: 492 scientists 111–120 publications: 541 scientists 121–130 publications: 617 scientists 131–140 publications: 544 scientists 141–150 publications: 541 scientists 151–160 publications: 539 scientists 161–170 publications: 444 scientists 171–180 publications: 444 scientists 181–190 publications: 400 scientists 191–200 publications: 377 scientists 201–210 publications: 318 scientists 211–220 publications: 283 scientists 221–230 publications: 263 scientists 231–240 publications: 220 scientists 241–250 publications: 217 scientists 251–260 publications: 180 scientists 261–270 publications: 181 scientists 271–280 publications: 155 scientists 281–290 publications: 130 scientists 291–300 publications: 127 scientists 301–310 publications: 130 scientists 311–320 publications: 85 scientists 321–330 publications: 106 scientists 331–340 publications: 80 scientists 341–350 publications: 83 scientists 351–360 publications: 75 scientists 361–370 publications: 69 scientists 371–380 publications: 52 scientists 381–390 publications: 54 scientists 391–400 publications: 56 scientists 401–410 publications: 44 scientists 411–420 publications: 40 scientists 421–430 publications: 36 scientists 431–440 publications: 25 scientists 441–450 publications: 25 scientists 451–460 publications: 32 scientists 461–470 publications: 29 scientists 471–480 publications: 21 scientists 481–490 publications: 26 scientists 491–500 publications: 25 scientists 501–510 publications: 17 scientists 511–520 publications: 18 scientists 521–530 publications: 15 scientists 531–540 publications: 22 scientists 541–550 publications: 12 scientists 551–560 publications: 15 scientists 561–570 publications: 11 scientists 571–580 publications: 19 scientists 581–590 publications: 9 scientists 591–600 publications: 9 scientists 601–610 publications: 7 scientists 611–620 publications: 11 scientists 621–630 publications: 5 scientists 631–640 publications: 5 scientists 641–650 publications: 6 scientists 651–660 publications: 3 scientists 661–670 publications: 3 scientists 671–680 publications: 4 scientists 681–686 publications: 3 scientists 687+ publications: 100 scientists
41 publications 687+

This scientist: 193 publications — 62nd percentile

62% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 687 publications or more.

Ira Leifer D-index placement in Environmental Sciences in 2026

The chart shows the D-index (discipline H-index) distribution of Environmental Sciences scientists ranked by Research.com in 2026. The highlighted bar marks where Ira Leifer sits on this spectrum.

30 D-Index: 12 scientists 31 D-Index: 26 scientists 32 D-Index: 51 scientists 33 D-Index: 88 scientists 34 D-Index: 123 scientists 35 D-Index: 163 scientists 36 D-Index: 206 scientists 37 D-Index: 267 scientists 38 D-Index: 265 scientists 39 D-Index: 275 scientists 40 D-Index: 321 scientists 41 D-Index: 343 scientists 42 D-Index: 305 scientists 43 D-Index: 336 scientists 44 D-Index: 330 scientists 45 D-Index: 348 scientists 46 D-Index: 291 scientists 47 D-Index: 275 scientists 48 D-Index: 272 scientists 49 D-Index: 273 scientists 50 D-Index: 263 scientists 51 D-Index: 232 scientists 52 D-Index: 266 scientists 53 D-Index: 217 scientists 54 D-Index: 199 scientists 55 D-Index: 177 scientists 56 D-Index: 202 scientists 57 D-Index: 204 scientists 58 D-Index: 166 scientists 59 D-Index: 177 scientists 60 D-Index: 166 scientists 61 D-Index: 152 scientists 62 D-Index: 143 scientists 63 D-Index: 150 scientists 64 D-Index: 124 scientists 65 D-Index: 119 scientists 66 D-Index: 120 scientists 67 D-Index: 118 scientists 68 D-Index: 82 scientists 69 D-Index: 98 scientists 70 D-Index: 94 scientists 71 D-Index: 105 scientists 72 D-Index: 74 scientists 73 D-Index: 84 scientists 74 D-Index: 70 scientists 75 D-Index: 67 scientists 76 D-Index: 78 scientists 77 D-Index: 60 scientists 78 D-Index: 59 scientists 79 D-Index: 52 scientists 80 D-Index: 47 scientists 81 D-Index: 38 scientists 82 D-Index: 48 scientists 83 D-Index: 42 scientists 84 D-Index: 42 scientists 85 D-Index: 43 scientists 86 D-Index: 29 scientists 87 D-Index: 37 scientists 88 D-Index: 29 scientists 89 D-Index: 30 scientists 90 D-Index: 34 scientists 91 D-Index: 20 scientists 92 D-Index: 22 scientists 93 D-Index: 17 scientists 94 D-Index: 19 scientists 95 D-Index: 24 scientists 96 D-Index: 21 scientists 97 D-Index: 20 scientists 98 D-Index: 24 scientists 99 D-Index: 17 scientists 100 D-Index: 17 scientists 101 D-Index: 21 scientists 102 D-Index: 25 scientists 103 D-Index: 18 scientists 104 D-Index: 26 scientists 105 D-Index: 19 scientists 106 D-Index: 15 scientists 107 D-Index: 10 scientists 108 D-Index: 13 scientists 109 D-Index: 15 scientists 110 D-Index: 12 scientists 111 D-Index: 8 scientists 112 D-Index: 7 scientists 113 D-Index: 9 scientists 114 D-Index: 6 scientists 115 D-Index: 12 scientists 116 D-Index: 7 scientists 117 D-Index: 8 scientists 118 D-Index: 3 scientists 119 D-Index: 5 scientists 120 D-Index: 7 scientists 121 D-Index: 2 scientists 122 D-Index: 4 scientists 123 D-Index: 8 scientists 124 D-Index: 7 scientists 125+ D-Index: 99 scientists
30 D-Index 125+

This scientist: 44 D-Index — 32nd percentile

32% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 125 D-Index or more.

Overview

Ira Leifer is affiliated with the University of California, Santa Barbara in the United States. Their research primarily spans the field of Environmental Science with a focus on multiple subfields including Global and Planetary Change, Health, Toxicology and Mutagenesis, Pollution, Environmental Chemistry, and Oceanography.

Their work covers a range of topics related to atmospheric and environmental gas dynamics, methane hydrates and related phenomena, oil spill detection and mitigation, air quality and health impacts, toxic organic pollutants impact, marine and coastal ecosystems, and hydrocarbon exploration and reservoir analysis.

Recent publications by Ira Leifer include:

  • Bubble-mediated transport of benthic microorganisms into the water column: Identification of methanotrophs and implication of seepage intensity on transport efficiency, 2020, Scientific Reports
  • Oil at sea-how much is too much?, 2022, Science
  • Wildfire Smoke Exposure: Covid19 Comorbidity?, 2021, Journal of Respiration
  • Measuring Floating Thick Seep Oil from the Coal Oil Point Marine Hydrocarbon Seep Field by Quantitative Thermal Oil Slick Remote Sensing, 2022, Remote Sensing
  • Air quality trends for the ports of Los Angeles and Long Beach spanning the covid19 crisis: Part 1. Oxidant pollutants, 2023, Atmospheric Environment

Key frequently co-authored collaborators include Christopher Melton, David M. Tratt, D. R. Blake, Michael T. Kleinman, and Charlotte Marston.

The most common venues for their publications are Atmospheric Environment, Scientific Reports, Science, Journal of Respiration, and Remote Sensing.

Best Publications

  • State of the art satellite and airborne marine oil spill remote sensing: Application to the BP Deepwater Horizon oil spill

    Ira Leifer;William J. Lehr;Debra Simecek-Beatty;Eliza Bradley

  • Ebullition and storm-induced methane release from the East Siberian Arctic Shelf

    Natalia Shakhova;Natalia Shakhova;Igor Semiletov;Igor Semiletov;Ira Leifer;Valentin Sergienko

  • The bubble mechanism for methane transport from the shallow sea bed to the surface: A review and sensitivity study

    Ira Leifer;Ranjan Kumar Patro

  • Transfer of hydrocarbons from natural seeps to the water column and atmosphere

    I. R. MacDonald;I. R. MacDonald;I. R. MacDonald;I. R. MacDonald;I. R. MacDonald;I. R. MacDonald;I. Leifer;R. Sassen;R. Sassen;R. Sassen;R. Sassen;R. Sassen;R. Sassen;P. Stine;P. Stine;P. Stine;P. Stine;P. Stine;P. Stine

  • Magnitude and oxidation potential of hydrocarbon gases released from the BP oil well blowout

    Samantha B. Joye;Ian R. MacDonald;Ira Leifer;Vernon L. Asper

  • Natural and Unnatural Oil Slicks in the Gulf of Mexico

    I. R. MacDonald;O. Garcia‐Pineda;A. Beet;S. Daneshgar Asl

  • Geochemical and geophysical evidence of methane release over the East Siberian Arctic Shelf

    N. Shakhova;N. Shakhova;I. Semiletov;I. Semiletov;I. Leifer;A. Salyuk

  • Considerable methane fluxes to the atmosphere from hydrocarbon seeps in the Gulf of Mexico

    Evan A. Solomon;Miriam Kastner;Ian R. MacDonald;Ira Leifer

  • Dynamics of the gas flux from shallow gas hydrate deposits: interaction between oily hydrate bubbles and the oceanic environment

    Ira Leifer;Ian MacDonald

  • Real-time remote detection and measurement for airborne imaging spectroscopy: a case study with methane

    D. R. Thompson;I. Leifer;H. Bovensmann;M. Eastwood

  • Temporal variation in natural methane seep rate due to tides, Coal Oil Point area, California

    J. R. Boles;J. F. Clark;I. Leifer;L. Washburn

  • Effects of climate change on methane emissions from seafloor sediments in the Arctic Ocean: A review

    Rachael H. James;Philippe Bousquet;Ingeborg Bussmann;Matthias Haeckel

  • Controls on methane bubble dissolution inside and outside the hydrate stability field from open ocean field experiments and numerical modeling

    Gregor Rehder;Ira Leifer;Peter G. Brewer;Gernot Friederich

  • Natural marine seepage blowout: Contribution to atmospheric methane

    Ira Leifer;Bruce P. Luyendyk;Jim Boles;Jordan F. Clark

  • A Study on the Temperature Variation of Rise Velocity for Large Clean Bubbles

    Ira Leifer;Ranjan K. Patro;Peter Bowyer

  • A method for quantitative mapping of thick oil spills using imaging spectroscopy

    Roger N. Clark;Gregg A. Swayze;Ira Leifer;K. Eric Livo

  • Measurement of marine hydrocarbon seep flow through fractured rock and unconsolidated sediment

    Ira Leifer;Jim Boles

  • Optical Measurement of Bubbles: System Design and Application

    I. R. A. Leifer;Gerrit De Leeuw;Leo H. Cohen

  • High resolution mapping of methane emissions from marine and terrestrial sources using a Cluster-Tuned Matched Filter technique and imaging spectrometry

    Andrew K. Thorpe;Dar A. Roberts;Eliza S. Bradley;Christopher C. Funk

  • Modelling of bubble-mediated gas transfer: Fundamental principles and a laboratory test

    D.K. Woolf;I.S. Leifer;P.D. Nightingale;T.S. Rhee

  • Airborne visualization and quantification of discrete methane sources in the environment

    David M. Tratt;Kerry N. Buckland;Jeffrey L. Hall;Patrick D. Johnson

Frequent Co-Authors

Bruce P. Luyendyk
Bruce P. Luyendyk University of California, Santa Barbara
Ian R. MacDonald
Ian R. MacDonald Florida State University
Igor Semiletov
Igor Semiletov Russian Academy of Sciences
Dar A. Roberts
Dar A. Roberts University of California, Santa Barbara
David K. Woolf
David K. Woolf Heriot-Watt University
Gerrit de Leeuw
Gerrit de Leeuw Royal Netherlands Meteorological Institute
Heinrich Bovensmann
Heinrich Bovensmann University of Bremen
John P. Burrows
John P. Burrows University of Bremen
Natalia Shakhova
Natalia Shakhova University of Alaska Fairbanks
Lieven Clarisse
Lieven Clarisse Université Libre de Bruxelles

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Related Online Degrees & Career Pathways

For those interested in Environmental Sciences, exploring related online degrees can open up diverse career opportunities. Many students seek programs that balance rigor with flexibility, which is why some look for the easiest degree to get as a starting point to enter the field efficiently while gaining essential knowledge.

Specialized degrees such as an online geology degree offer in-depth understanding of earth processes, vital for careers in environmental consulting, resource management, and conservation. Additionally, Geographic Information Systems (GIS) skills are increasingly important, making the best gis programs a valuable choice to enhance spatial analysis expertise and employability in environmental planning and management.

For those aiming to influence policy and lead environmental initiatives, advanced degrees such as the online mpa degrees provide crucial public administration skills. These programs prepare graduates for leadership roles in government agencies, nonprofits, and private sectors focused on sustainability and environmental affairs.

Combining these education options with Environmental Sciences can significantly broaden career paths and equip students to address today’s pressing ecological challenges effectively.

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