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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Environmental Sciences 50 4898 4689 1803 1664 121 11905

Gregory C. Roberts publications per year

The chart shows the history of publications by Gregory C. Roberts between 1997 and 2021, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Gregory C. Roberts published across 25 years, from 1997 to 2021, averaging 5.4 papers a year. Output peaked at 16 publications in 2021. 29 of the 136 publications appeared in the last two years.

No. of publications
5 10 15
Bar chart. Horizontal axis: year, 1997 to 2021. Vertical axis: number of publications, 0 to 16. Peak 16 publications in 2021. 1997: 2 publications 1998: 2 publications 1999: 1 publication 2000: 3 publications 2001: 3 publications 2002: 12 publications 2003: 11 publications 2004: 3 publications 2005: 1 publication 2006: 1 publication 2007: 6 publications 2008: 2 publications 2009: 6 publications 2010: 5 publications 2011: 7 publications 2012: 4 publications 2013: 12 publications 2014: 4 publications 2015: 5 publications 2016: 6 publications 2017: 3 publications 2018: 5 publications 2019: 3 publications 2020: 13 publications 2021: 16 publications
1997 2021

136 publications in total across all disciplines

View publications per year as a table
Gregory C. Roberts: publications per year, 1997 to 2021
Year Publications
1997 2
1998 2
1999 1
2000 3
2001 3
2002 12
2003 11
2004 3
2005 1
2006 1
2007 6
2008 2
2009 6
2010 5
2011 7
2012 4
2013 12
2014 4
2015 5
2016 6
2017 3
2018 5
2019 3
2020 13
2021 16
Total 136
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Gregory C. Roberts 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 Gregory C. Roberts sits on this spectrum.

No. of scientists
200 400 600
Bar chart with 66 bars. Horizontal axis: publications, 41–50 to 690+. Vertical axis: number of scientists, 0 to 617. Most scientists, 617, have 121–130 publications. The last bar groups every scientist with 690 publications or more. The highlighted bar, 121–130 publications, is where this scientist sits. 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: 282 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: 26 scientists 501–510 publications: 17 scientists 511–520 publications: 19 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 681–689 publications: 4 scientists 690+ publications: 100 scientists
41–50 publications 690+

This scientist: 121 publications — 24th percentile

24% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 690 publications or more.

View publications distribution as a table
Number of Environmental Sciences scientists by publication count, Research.com 2026 ranking edition. Based on 9,676 ranked scientists.
Publications Scientists This scientist
41–50 21
51–60 62
61–70 133
71–80 257
81–90 361
91–100 440
101–110 492
111–120 541
121–130 617 121
131–140 544
141–150 541
151–160 539
161–170 444
171–180 444
181–190 400
191–200 377
201–210 318
211–220 282
221–230 263
231–240 220
241–250 217
251–260 180
261–270 181
271–280 155
281–290 130
291–300 127
301–310 130
311–320 85
321–330 106
331–340 80
341–350 83
351–360 75
361–370 69
371–380 52
381–390 54
391–400 56
401–410 44
411–420 40
421–430 36
431–440 25
441–450 25
451–460 32
461–470 29
471–480 21
481–490 26
491–500 26
501–510 17
511–520 19
521–530 15
531–540 22
541–550 12
551–560 15
561–570 11
571–580 19
581–590 9
591–600 9
601–610 7
611–620 11
621–630 5
631–640 5
641–650 6
651–660 3
661–670 3
671–680 4
681–689 4
690+ 100
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Gregory C. Roberts 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 Gregory C. Roberts sits on this spectrum.

No. of scientists
100 200 300
Bar chart with 97 bars. Horizontal axis: D-Index, 30 to 126+. Vertical axis: number of scientists, 0 to 348. Most scientists, 348, have 45 D-Index. The last bar groups every scientist with 126 D-Index or more. The highlighted bar, 50 D-Index, is where this scientist sits. 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: 198 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: 20 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: 9 scientists 126+ D-Index: 92 scientists
30 D-Index 126+

This scientist: 50 D-Index — 50th percentile

50% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 126 D-Index or more.

View D-Index distribution as a table
Number of Environmental Sciences scientists by D-index, Research.com 2026 ranking edition. Based on 9,676 ranked scientists.
D-Index Scientists This scientist
30 12
31 26
32 51
33 88
34 123
35 163
36 206
37 267
38 265
39 275
40 321
41 343
42 305
43 336
44 330
45 348
46 291
47 275
48 272
49 273
50 263 50
51 232
52 266
53 217
54 198
55 177
56 202
57 204
58 166
59 177
60 166
61 152
62 143
63 150
64 124
65 119
66 120
67 118
68 82
69 98
70 94
71 105
72 74
73 84
74 70
75 67
76 78
77 60
78 59
79 52
80 47
81 38
82 48
83 42
84 42
85 43
86 29
87 37
88 29
89 30
90 34
91 20
92 22
93 17
94 19
95 24
96 21
97 20
98 24
99 17
100 17
101 21
102 25
103 18
104 26
105 20
106 15
107 10
108 13
109 15
110 12
111 8
112 7
113 9
114 6
115 12
116 7
117 8
118 3
119 5
120 7
121 2
122 4
123 8
124 7
125 9
126+ 92
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Overview

What is he best known for?

The fields of study he is best known for:

  • Meteorology
  • Optics
  • Aerosol

Gregory C. Roberts mainly investigates Aerosol, Environmental science, Cloud condensation nuclei, Atmospheric sciences and Environmental chemistry. His Aerosol study incorporates themes from Plume and Temperature gradient. His Cloud condensation nuclei research integrates issues from Inorganic chemistry, Calcium carbonate, Mineral dust and Asian Dust.

The Atmospheric sciences study which covers Radiative forcing that intersects with Climate model, Atmospheric temperature, Troposphere, Greenhouse gas and Forcing. His study in the fields of Total organic carbon under the domain of Environmental chemistry overlaps with other disciplines such as Fraction and Carbon. In general Meteorology, his work in Köhler theory and Water vapor is often linked to Thermal diffusivity and Supersaturation linking many areas of study.

His most cited work include:

  • Warming trends in Asia amplified by brown cloud solar absorption (601 citations)
  • A Continuous-Flow Streamwise Thermal-Gradient CCN Chamber for Atmospheric Measurements (543 citations)
  • A global database of sea surface dimethylsulfide (DMS) measurements and a procedure to predict sea surface DMS as a function of latitude, longitude, and month (514 citations)

What are the main themes of his work throughout his whole career to date?

The scientist’s investigation covers issues in Environmental science, Aerosol, Atmospheric sciences, Cloud condensation nuclei and Meteorology. Environmental science is connected with Climatology, Liquid water content, Oceanography, Wet season and Troposphere in his study. Gregory C. Roberts mostly deals with Radiative forcing in his studies of Aerosol.

His Atmospheric sciences research incorporates elements of Hydrology, Mineral dust, Shortwave and Precipitation. Gregory C. Roberts usually deals with Cloud condensation nuclei and limits it to topics linked to Environmental chemistry and Levoglucosan. His Meteorology study combines topics from a wide range of disciplines, such as Cloud base and Climate model.

He most often published in these fields:

  • Environmental science (81.68%)
  • Aerosol (76.34%)
  • Atmospheric sciences (52.67%)

What were the highlights of his more recent work (between 2018-2021)?

  • Environmental science (81.68%)
  • Aerosol (76.34%)
  • Optics (5.34%)

In recent papers he was focusing on the following fields of study:

Environmental science, Aerosol, Optics, Atmospheric sciences and Cloud condensation nuclei are his primary areas of study. Gregory C. Roberts incorporates a variety of subjects into his writings, including Environmental science, Meteorology, Entrainment, Oceanography, Observatory and Earth system science. In the subject of general Meteorology, his work in Atmosphere and Eddy is often linked to Ring current and Range, thereby combining diverse domains of study.

His research in Aerosol is mostly focused on Radiative forcing. In his study, Middle latitudes is inextricably linked to HYSPLIT, which falls within the broad field of Atmospheric sciences. His work carried out in the field of Cloud condensation nuclei brings together such families of science as Pyranometer, Cloud base and Shortwave radiation.

Between 2018 and 2021, his most popular works were:

  • Multifunctional volumetric meta-optics for color and polarization image sensors (15 citations)
  • Cloud‐Nucleating Particles Over the Southern Ocean in a Changing Climate (4 citations)
  • Cloud‐Nucleating Particles Over the Southern Ocean in a Changing Climate (4 citations)

In his most recent research, the most cited papers focused on:

  • Optics
  • Meteorology
  • Aerosol

His primary areas of investigation include Environmental science, Aerosol, Cloud condensation nuclei, Condensation and Sea salt. His study of Environmental science brings together topics like Climate change and Climatology. His Aerosol study deals with the bigger picture of Meteorology.

His Cloud condensation nuclei research is multidisciplinary, incorporating perspectives in Entrainment and Cloud base. His research integrates issues of Middle latitudes, Atmospheric sciences, HYSPLIT and Precipitation in his study of Condensation.

Best Publications

  • Warming trends in Asia amplified by brown cloud solar absorption

    Veerabhadran Ramanathan;Muvva V. Ramana;Gregory Roberts;Dohyeong Kim

  • A Continuous-Flow Streamwise Thermal-Gradient CCN Chamber for Atmospheric Measurements

    G. C. Roberts;A. Nenes

  • A global database of sea surface dimethylsulfide (DMS) measurements and a procedure to predict sea surface DMS as a function of latitude, longitude, and month

    A. J. Kettle;M. O. Andreae;D. Amouroux;T. W. Andreae

  • Bringing the ocean into the laboratory to probe the chemical complexity of sea spray aerosol

    Kimberly A. Prather;Timothy H. Bertram;Vicki H. Grassian;Grant B. Deane

  • Water‐soluble organic compounds in biomass burning aerosols over Amazonia 1. Characterization by NMR and GC‐MS

    Bim Graham;Olga L. Mayol-Bracero;Pascal Guyon;Gregory C. Roberts

  • Contrasting convective regimes over the Amazon: Implications for cloud electrification

    E. Williams;D. Rosenfeld;N. Madden;J. Gerlach

  • Water-soluble organic compounds in biomass burning aerosols over Amazonia 2. Apportionment of the chemical composition and importance of the polyacidic fraction

    O. L. Mayol-Bracero;P. Guyon;B. Graham;G. Roberts

  • The Prefactor of Fractal Aggregates

    Christopher M. Sorensen;Gregory C. Roberts

  • Sources and properties of Amazonian aerosol particles

    Scot T. Martin;Meinrat O. Andreae;Paulo Artaxo;Darrel Baumgardner

  • General overview: European Integrated project on Aerosol Cloud Climate and Air Quality interactions (EUCAARI) - integrating aerosol research from nano to global scales

    M. Kulmala;A. Asmi;H. K. Lappalainen;H. K. Lappalainen;U. Baltensperger

  • Effect of chemical mixing state on the hygroscopicity and cloud nucleation properties of calcium mineral dust particles

    R. C. Sullivan;R. C. Sullivan;M. J. K. Moore;M. D. Petters;S. M. Kreidenweis

  • Capturing vertical profiles of aerosols and black carbon over the Indian Ocean using autonomous unmanned aerial vehicles

    C. E. Corrigan;G. C. Roberts;M. V. Ramana;D. Kim

  • Cloud condensation nuclei in the Amazon Basin: “marine” conditions over a continent?

    Gregory C. Roberts;Meinrat O. Andreae;Jingchuan Zhou;Paulo Artaxo

  • EUREC 4 A

    Bjorn Stevens;Sandrine Bony;David Farrell;Felix Ament

  • Sensitivity of CCN spectra on chemical and physical properties of aerosol: A case study from the Amazon Basin

    Gregory C. Roberts;Paulo Artaxo;Jingchuan Zhou;Erik Swietlicki

  • Biogenic Gas (CH4, N2O, DMS) Emission to the Atmosphere from Near-shore and Shelf Waters of the North-western Black Sea

    D. Amouroux;G. Roberts;S. Rapsomanikis;M. O. Andreae

  • Physical properties of the sub-micrometer aerosol over the Amazon rain forest during the wet-to-dry season transition - comparison of modeled and measured CCN concentrations

    Jenny Rissler;Erik Swietlicki;Jingchuan Zhou;G Roberts

  • Saharan dust in Brazil and Suriname during the Large-Scale Biosphere-Atmosphere Experiment in Amazonia (LBA) - Cooperative LBA Regional Experiment (CLAIRE) in March 1998

    P Formenti;Mo Andreae;L Lange;G Roberts

  • An overview of aircraft observations from the Pacific Dust Experiment campaign

    J. L. Stith;V. Ramanathan;W. A. Cooper;G. C. Roberts

  • Overview of the Chemistry-Aerosol Mediterranean Experiment/Aerosol Direct Radiative Forcing on the Mediterranean Climate (ChArMEx/ADRIMED) summer 2013 campaign

    Marc Mallet;François Dulac;Paola Formenti;Pierre Nabat

  • Water-soluble organic compounds in biomass burning aerosols over Amazonia: 1. Characterization by NMR and GC-MS : Large-scale biosphere-atmosphere experiment in Amazonia (LBA)

    Bim Graham;Olga L. Mayol-Bracero;Pascal Guyon;Gregory C. Roberts

  • Water-soluble organic compounds in biomass burning aerosols over Amazonia 2. Apportionment of the chemical composition and importance of the polyacidic fraction : Large-scale biosphere-atmosphere experiment in Amazonia (LBA)

    O. L. Mayol-Bracero;P. Guyon;B. Graham;G. Roberts

  • Contrasting convective regimes over the Amazon: Implications for cloud electrification : Large-scale biosphere-atmosphere experiment in Amazonia (LBA)

    E. Williams;D. Rosenfeld;N. Madden;J. Gerlach

Frequent Co-Authors

Meinrat O. Andreae
Meinrat O. Andreae Max Planck Institute for Chemistry
Paulo Artaxo
Paulo Artaxo Universidade de São Paulo
Olga L. Mayol-Bracero
Olga L. Mayol-Bracero University of Puerto Rico at Río Piedras
Willy Maenhaut
Willy Maenhaut Ghent University
Andrei Faraon
Andrei Faraon California Institute of Technology
Lynn M. Russell
Lynn M. Russell University of California, San Diego
Alfons Schwarzenboeck
Alfons Schwarzenboeck University of Clermont Auvergne
Karine Sellegri
Karine Sellegri University of Clermont Auvergne
John H. Seinfeld
John H. Seinfeld California Institute of Technology
Veerabhadran Ramanathan
Veerabhadran Ramanathan University of California, San Diego

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