World's Best Scientists 2026 revealed!
Ralph E. H. Smith

Ralph E. H. Smith

D-Index & Metrics

Environmental Sciences

D-Index
40
Citations
5097
World Ranking
8168
National Ranking
374

Ralph E. H. Smith 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 Ralph E. H. Smith 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: 109 publications — 18th percentile

18% of scientists in this discipline score the same or lower.

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

Ralph E. H. Smith 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 Ralph E. H. Smith 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: 40 D-Index — 19th percentile

19% of scientists in this discipline score the same or lower.

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

Overview

Ralph E. H. Smith is affiliated with the University of Waterloo in Canada. Their research predominantly focuses on environmental and earth sciences, with a particular emphasis on aquatic ecosystems and phytoplankton dynamics, marine and coastal ecosystems, fish ecology and management studies, soil and water nutrient dynamics, and water quality monitoring and analysis.

The main fields of study associated with their work are Environmental Science and Earth and Planetary Sciences. They have contributed significantly to subfields such as Environmental Chemistry, Oceanography, Nature and Landscape Conservation, and Industrial and Manufacturing Engineering.

Smith's publication record includes recent papers that address critical aspects of water bodies and aquatic environments. These include:

  • High Sensitivity of Lake Hypoxia to Air Temperatures, Winds, and Nutrient Loading: Insights From a 3-D Lake Model, 2020, Water Resources Research
  • Simulated impacts of climate change on Lake Simcoe water quality, 2021, Inland Waters
  • Quantifying the uncertainties in multi-wavelength PAM fluorometry due to innate and irradiance-induced variability of fluorescence spectra, 2021, Aquatic Ecology

Throughout their research, Smith has frequently collaborated with several coauthors, including Serghei A. Bocaniov, Kevin G. Lamb, Wentao Liu, Yerubandi R. Rao, and Hadiseh Bolkhari.

The scientist's work has been published in respected venues such as Water Resources Research, Inland Waters, and Aquatic Ecology, reflecting a focus on aquatic and environmental studies.

Best Publications

  • Biological Production of the Oceans - the Case for a Consensus

    T. Piatt;WG Harrison;Lewis;Wkw Li

  • Evidence for phosphorus, nitrogen, and iron colimitation of phytoplankton communities in Lake Erie

    R. L. North;S. J. Guildford;R. E. H. Smith;S. M. Havens

  • SIZE-DEPENDENT PHOSPHORUS UPTAKE KINETICS AND CELL QUOTA IN PHYTOPLANKTON1

    Ralph E. H. Smith;Jaap Kalff

  • Diatoms abound in ice-covered Lake Erie: An investigation of offshore winter limnology in Lake Erie over the period 2007 to 2010

    Michael R. Twiss;Robert Michael L. McKay;Richard A. Bourbonniere;George S. Bullerjahn

  • The ecological effects of naphthenic acids and salts on phytoplankton from the Athabasca oil sands region.

    Sherwin S. Leung;Mike D. MacKinnon;Ralph E.H. Smith

  • The Wall of Green: The Status of Cladophora glomerata on the Northern Shores of Lake Erie's Eastern Basin, 1995–2002

    Scott N. Higgins;E. Todd Howell;Robert E. Hecky;Stephanie J. Guildford

  • Application of a 3D hydrodynamic-biological model for seasonal and spatial dynamics of water quality and phytoplankton in Lake Erie

    Luis F. Leon;Luis F. Leon;Ralph E.H. Smith;Matthew R. Hipsey;Serghei A. Bocaniov

  • Vertical Fine Structure of Particulate Matter and Nutrients in Sea Ice of the High Arctic

    Ralph E. H. Smith;W. Glen Harrison;Leslie R. Harris;Alex W. Herman

  • Competition for phosphorus among co‐occurring freshwater phytoplankton1

    Ralph E. H. Smith;Jaap Kalff

  • Modeling as a Tool for Nutrient Management in Lake Erie: a Hydrodynamics Study

    Luis F. León;Jörg Imberger;Ralph E.H. Smith;Robert E. Hecky

  • The Effect of Phosphorus Limitation on Algal Growth Rates: Evidence from Alkaline Phosphatase

    Ralph E. H. Smith;Jaap Kalff

  • INFLUENCE OF ULTRAVIOLET RADIATION ON GROWTH AND PHOTOSYNTHESIS OF TWO COLD OCEAN DIATOMS1

    Jusri Nilawati;Bruce M. Greenberg;Ralph E. H. Smith

  • Ecology of bottom ice algae: II. Dynamics, distributions and productivity

    Glenn F Cota;Ralph E.H Smith

  • Mercury biomagnification in the food webs of acidic lakes in Kejimkujik National Park and National Historic Site, Nova Scotia

    Brianna WynB. Wyn;Brianna WynB. Wyn;Karen A. KiddK.A. Kidd;Karen A. KiddK.A. Kidd;Neil M. BurgessN.M. Burgess;Neil M. BurgessN.M. Burgess;R. Allen CurryR.A. Curry;R. Allen CurryR.A. Curry

  • INTRACELLULAR PHOTOSYNTHATE ALLOCATION AND THE CONTROL OF ARCTIC MARINE ICE ALGAL PRODUCTION1

    Ralph E. H. Smith;Pierre Clement;Glenn F. Cota;William K. W. Li

  • Impact of Ice Algae on Inorganic Nutrients in Seawater and Sea Ice in Barrow Strait, NWT, Canada, During Spring

    Glenn F. Cota;Jeffrey L. Anning;Leslie R. Harris;W. Glen Harrison

  • Intact and photomodified polycyclic aromatic hydrocarbons inhibit photosynthesis in natural assemblages of Lake Erie phytoplankton exposed to solar radiation.

    Christopher A. Marwood;Ralph E.H. Smith;Keith R. Solomon;Murray N. Charlton

  • Bacterial carbon production in Lake Erie is influenced by viruses and solar radiation

    Steven W. Wilhelm;Ralph E.H. Smith

  • Biosynthesis and photosynthate allocation patterns of arctic ice algae

    Ralph E. H. Smith;Pierre Clement;Erica Head

  • Aquatic reclamation in the Athabasca, Canada, oil sands: Naphthenate and salt effects on phytoplankton communities

    Sherwin Sik-Cheung Leung;Mike D. MacKinnon;Ralph E. H. Smith

  • Attenuation of ultraviolet radiation in a large lake with low dissolved organic matter concentrations

    R. E. H. Smith;J. A. Furgal;M. N. Charlton;B. M. Greenberg

Frequent Co-Authors

Stephanie J. Guildford
Stephanie J. Guildford University of Minnesota
Bruce M. Greenberg
Bruce M. Greenberg University of Waterloo
Robert E. Hecky
Robert E. Hecky University of Minnesota
Michel Gosselin
Michel Gosselin Université du Québec à Rimouski
Glenn F. Cota
Glenn F. Cota Old Dominion University
Matthew R. Hipsey
Matthew R. Hipsey University of Western Australia
Louis Legendre
Louis Legendre Université Paris Cité
Sherry L. Schiff
Sherry L. Schiff University of Waterloo
Steven W. Wilhelm
Steven W. Wilhelm University of Tennessee at Knoxville
Richard J. Geider
Richard J. Geider University of Essex

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