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Environmental Sciences
USA
2026

D-Index & Metrics

Environmental Sciences

D-Index
107
Citations
47833
World Ranking
235
National Ranking
108

John M. Melack 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 John M. Melack 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: 413 publications — 94th percentile

94% of scientists in this discipline score the same or lower.

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

John M. Melack 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 John M. Melack 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: 107 D-Index — 98th percentile

98% of scientists in this discipline score the same or lower.

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

Research.com Recognitions

  • 2026 - Research.com Environmental Sciences in United States Leader Award
  • 2025 - Research.com Environmental Sciences in United States Leader Award
  • 2011 - Fellow of American Geophysical Union (AGU)
  • 2007 - Fellow of the American Association for the Advancement of Science (AAAS)

Overview

John M. Melack is affiliated with the University of California, Santa Barbara in the United States. Their research spans multiple fields primarily within environmental science and earth and planetary sciences, with significant contributions to global and planetary change, oceanography, ecology, environmental chemistry, and water science and technology.

The scientist's scholarly output includes numerous publications focusing on environmental and aquatic ecosystems. They have extensively studied marine and coastal ecosystems, atmospheric and environmental gas dynamics, aquatic ecosystems and phytoplankton dynamics, methane hydrates and related phenomena, flood risk assessment and management, as well as hydrology and watershed management studies and sediment transport processes.

Recent scientific papers authored or co-authored by John M. Melack include:

  • Half of global methane emissions come from highly variable aquatic ecosystem sources, 2021, Nature Geoscience
  • A machine learning approach to estimate chlorophyll-a from Landsat-8 measurements in inland lakes, 2020, Remote Sensing of Environment
  • Reducing adverse impacts of Amazon hydropower expansion, 2022, Science
  • Amazon Hydrology From Space: Scientific Advances and Future Challenges, 2021, Reviews of Geophysics
  • Deeper waters are changing less consistently than surface waters in a global analysis of 102 lakes, 2020, Scientific Reports

Frequent co-authors include Sally MacIntyre, J. H. Amaral, Ayan Santos Fleischmann, Pedro M. Barbosa, and Bruce R. Forsberg. Collaboration with these researchers has contributed to a substantial body of cross-disciplinary scientific literature.

John M. Melack has published articles in several scientific journals, with the most frequent venues being:

  • Journal of Geophysical Research Biogeosciences
  • Biogeochemistry
  • Limnology and Oceanography
  • Inland Waters
  • SSRN Electronic Journal

The scientist has also contributed to book publications, including a work published by the Centre National de la Recherche Scientifique titled Hidrologia da Amazônia vista do espaço: avanços cientificos e desafios futuros (2023).

John M. Melack has been recognized by major scientific organizations, holding fellowships as a Fellow of the American Association for the Advancement of Science (2007) and as a Fellow of the American Geophysical Union (2011).

Best Publications

  • Plumbing the Global Carbon Cycle: Integrating Inland Waters into the Terrestrial Carbon Budget

    Jonathan J. Cole;Yves T. Prairie;Nina F. Caraco;William H. McDowell

  • Lakes and reservoirs as regulators of carbon cycling and climate

    Lars J. Tranvik;John A. Downing;James B. Cotner;Steven A. Loiselle

  • The global abundance and size distribution of lakes, ponds, and impoundments

    J.A. Downing;Y.T. Prairie;J.J. Cole;C.M. Duarte

  • Riverine coupling of biogeochemical cycles between land, oceans, and atmosphere

    Anthony K Aufdenkampe;Emilio Mayorga;Peter A Raymond;John M Melack

  • Rapid and highly variable warming of lake surface waters around the globe

    Catherine M. O'Reilly;Sapna Sharma;Derek K. Gray;Stephanie E. Hampton

  • Outgassing from Amazonian rivers and wetlands as a large tropical source of atmospheric CO2.

    Jeffrey E. Richey;John M. Melack;Anthony K. Aufdenkampe;Victoria M. Ballester

  • Half of global methane emissions come from highly variable aquatic ecosystem sources

    Judith A. Rosentreter;Judith A. Rosentreter;Alberto V. Borges;Bridget R. Deemer;Meredith A. Holgerson;Meredith A. Holgerson

  • An integrated conceptual framework for long‐term social–ecological research

    Scott L Collins;Stephen R Carpenter;Scott M Swinton;Daniel E Orenstein

  • The use of Imaging radars for ecological applications : A review

    Eric S Kasischke;John M Melack;M Craig Dobson

  • Landscape indicators of human impacts to riverine systems

    Sarah E. Gergel;Monica G. Turner;James R. Miller;John M. Melack

  • Delineation of inundated area and vegetation along the Amazon floodplain with the SIR-C synthetic aperture radar

    L.L. Hess;J.M. Melack;S. Filoso;Yong Wang

  • Transport of organic carbon in the world’s rivers

    William H. Schlesinger;John M. Melack

  • Decomposition and carbon cycling of dead trees in tropical forests of the central Amazon.

    Jeffrey Q. Chambers;Niro Higuchi;Joshua P. Schimel;Leandro V. Ferreira

  • Radar detection of flooding beneath the forest canopy - A review

    Laura L. Hess;John M. Melack;David S. Simonett

  • Remote sensing of the land surface for studies of global change: Models — algorithms — experiments

    P.J. Sellers;B.W. Meeson;F.G. Hall;G. Asrar

  • Precipitation and atmospheric circulation patterns at mid-latitudes of Asia

    Elena M. Aizen;Vladimir B. Aizen;John M. Melack;Tsutomu Nakamura

  • Climatic and hydrologic changes in the Tien Shan, central Asia

    Vladimir B. Aizen;Elena M. Aizen;John M. Melack;Jeff Dozier

  • Episodic rewetting enhances carbon and nitrogen release from chaparral soils

    Amy E. Miller;Joshua P. Schimel;Thomas Meixner;James O. Sickman

  • Inundation patterns in the Pantanal wetland of South America determined from passive microwave remote sensing

    Stephen K. Hamilton;Suzanne J. Sippel;John M. Melack

  • Interferometric radar measurements of water level changes on the Amazon flood plain

    Douglas E. Alsdorf;John M. Melack;Thomas Dunne;Leal A. K. Mertes;Leal A. K. Mertes

Frequent Co-Authors

Sally Macintyre
Sally Macintyre MRC Social and Public Health Sciences Unit
Bruce R. Forsberg
Bruce R. Forsberg National Institute of Amazonian Research
James O. Sickman
James O. Sickman University of California, Riverside
Evlyn Márcia Leão de Moraes Novo
Evlyn Márcia Leão de Moraes Novo National Institute for Space Research
Stephen K. Hamilton
Stephen K. Hamilton Michigan State University
Thomas Dunne
Thomas Dunne University of California, Santa Barbara
Thomas R. Fisher
Thomas R. Fisher University of Maryland Center For Environmental Sciences
Frank W. Davis
Frank W. Davis University of California, Santa Barbara
Thomas Meixner
Thomas Meixner University of Arizona
Thiago Sanna Freire Silva
Thiago Sanna Freire Silva University of Stirling

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