World's Best Scientists 2026 revealed!

D-Index & Metrics

Discipline name D-Index World Ranking National Ranking Publications Citations
Environmental Sciences 61 2690 1074 117 39056

Charles D. Keeling publications per year

The chart shows the history of publications by Charles D. Keeling between 1953 and 2019, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Charles D. Keeling published across 67 years, from 1953 to 2019, averaging 1.8 papers a year. Output peaked at 10 publications in 2019. 10 of the 122 publications appeared in the last two years.

No. of publications
2 4 6 8 10
Bar chart. Horizontal axis: year, 1953 to 2019. Vertical axis: number of publications, 0 to 10. Peak 10 publications in 2019. 1953: 1 publication 1954: 2 publications 1955: 0 publications 1956: 0 publications 1957: 0 publications 1958: 1 publication 1959: 0 publications 1960: 1 publication 1961: 2 publications 1962: 0 publications 1963: 2 publications 1964: 0 publications 1965: 4 publications 1966: 0 publications 1967: 1 publication 1968: 4 publications 1969: 0 publications 1970: 2 publications 1971: 0 publications 1972: 0 publications 1973: 2 publications 1974: 0 publications 1975: 0 publications 1976: 2 publications 1977: 1 publication 1978: 1 publication 1979: 3 publications 1980: 3 publications 1981: 1 publication 1982: 3 publications 1983: 3 publications 1984: 1 publication 1985: 6 publications 1986: 5 publications 1987: 0 publications 1988: 0 publications 1989: 3 publications 1990: 0 publications 1991: 2 publications 1992: 5 publications 1993: 2 publications 1994: 1 publication 1995: 3 publications 1996: 5 publications 1997: 5 publications 1998: 7 publications 1999: 2 publications 2000: 4 publications 2001: 5 publications 2002: 2 publications 2003: 3 publications 2004: 3 publications 2005: 1 publication 2006: 0 publications 2007: 2 publications 2008: 1 publication 2009: 0 publications 2010: 0 publications 2011: 1 publication 2012: 0 publications 2013: 2 publications 2014: 0 publications 2015: 0 publications 2016: 1 publication 2017: 1 publication 2018: 0 publications 2019: 10 publications
1953 2019

122 publications in total across all disciplines

View publications per year as a table
Charles D. Keeling: publications per year, 1953 to 2019
Year Publications
1953 1
1954 2
1955 0
1956 0
1957 0
1958 1
1959 0
1960 1
1961 2
1962 0
1963 2
1964 0
1965 4
1966 0
1967 1
1968 4
1969 0
1970 2
1971 0
1972 0
1973 2
1974 0
1975 0
1976 2
1977 1
1978 1
1979 3
1980 3
1981 1
1982 3
1983 3
1984 1
1985 6
1986 5
1987 0
1988 0
1989 3
1990 0
1991 2
1992 5
1993 2
1994 1
1995 3
1996 5
1997 5
1998 7
1999 2
2000 4
2001 5
2002 2
2003 3
2004 3
2005 1
2006 0
2007 2
2008 1
2009 0
2010 0
2011 1
2012 0
2013 2
2014 0
2015 0
2016 1
2017 1
2018 0
2019 10
Total 122
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Charles D. Keeling 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 Charles D. Keeling 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, 111–120 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: 117 publications — 22nd percentile

22% 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
111–120 541 117
121–130 617
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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Charles D. Keeling 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 Charles D. Keeling 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, 61 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: 61 D-Index — 72nd percentile

72% 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
51 232
52 266
53 217
54 198
55 177
56 202
57 204
58 166
59 177
60 166
61 152 61
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

Charles D. Keeling was affiliated with the University of California, San Diego in the United States. Their academic career focused on scientific research, although specific fields of study and subfields were not detailed in the available data.

The scientist did not have recorded recent papers available in the data, and no frequent co-authors or publication venues were listed. There was also no information on book publications or main topics of their work.

Despite the lack of detailed publication information, Charles D. Keeling was recognized as a researcher within their primary institution, contributing to the scientific community during their career. The scientist is deceased, and the data does not specify awards or honors received.

Best Publications

  • Changes in Atmospheric Constituents and in Radiative Forcing

    Piers Forster;Venkatachalam Ramaswamy;Paulo Artaxo;Terje Berntsen

  • Increased plant growth in the northern high latitudes from 1981 to 1991

    R. B. Myneni;C. D. Keeling;C. J. Tucker;G. Asrar

  • Climate-Driven Increases in Global Terrestrial Net Primary Production from 1982 to 1999

    Ramakrishna R. Nemani;Charles D. Keeling;Hirofumi Hashimoto;Hirofumi Hashimoto;William M. Jolly

  • The carbon cycle and atmospheric CO2

    IC Prentice;GD Farquhar;Mjr Fasham;ML Goulden

  • Interannual extremes in the rate of rise of atmospheric carbon dioxide since 1980

    C.D. Keeling;T.P. Whorf;M. Wahlen;J. van der Plicht

  • The concentration and isotopic abundances of atmospheric carbon dioxide in rural areas

    Charles D Keeling

  • Increased activity of northern vegetation inferred from atmospheric CO 2 measurements

    C. D. Keeling;J. F. S. Chin;T. P. Whorf

  • Ocean pCO2 calculated from dissolved inorganic carbon, alkalinity, and equations for K1 and K2: validation based on laboratory measurements of CO2 in gas and seawater at equilibrium

    Timothy J Lueker;Andrew G Dickson;Charles D Keeling

  • Atmospheric carbon dioxide variations at Mauna Loa Observatory, Hawaii

    Charles D. Keeling;Robert B. Bacastow;Arnold E. Bainbridge;Carl A. Ekdahl

  • A three‐dimensional model of atmospheric CO2 transport based on observed winds: 1. Analysis of observational data

    Charles D. Keeling;R. B. Bacastow;A. F. Carter;S. C. Piper

  • The concentration and isotopic abundances of carbon dioxide in rural and marine air

    Charles D. Keeling

  • Atmospheric CO 2 records from sites in the SIO air sampling network

    Unknown

  • The Suess effect: 13Carbon-14Carbon interrelations

    Charles D. Keeling

  • Tropical rain forest tree growth and atmospheric carbon dynamics linked to interannual temperature variation during 1984-2000

    D. A. Clark;S. C. Piper;C. D. Keeling;D. B. Clark

  • Relationship between atmospheric CO2 variations and a satellite-derived vegetation index

    C. J. Tucker;I. Y. Fung;I. Y. Fung;C. D. Keeling;R. H. Gammon

  • The Concentration and Isotopic Abundances of Carbon Dioxide in the Atmosphere

    Charles D. Keeling

  • RECENT TRENDS IN THE C-13-C-12 RATIO OF ATMOSPHERIC CARBON-DIOXIDE

    Charles D. Keeling;Wim G. Mook;Pieter P. Tans

  • Atmospheric CO2 and 13CO2 Exchange with the Terrestrial Biosphere and Oceans from 1978 to 2000: Observations and Carbon Cycle Implications

    Charles D. Keeling;Stephen C. Piper;Robert B. Bacastow;Martin Wahlen

  • Spatiotemporal patterns of carbon‐13 in the global surface oceans and the oceanic suess effect

    Nicolas Gruber;Charles D. Keeling;Robert B. Bacastow;Peter R. Guenther

  • Interannual variations in satellite-sensed vegetation index data from 1981 to 1991

    R. B. Myneni;C. J. Tucker;G. Asrar;C. D. Keeling

  • Large‐scale atmospheric mixing as deduced from the seasonal and meridional variations of carbon dioxide

    B. Bolin;C. D. Keeling

Frequent Co-Authors

Nicolas Gruber
Nicolas Gruber ETH Zurich
Martin Heimann
Martin Heimann Max Planck Institute for Biogeochemistry
Compton J. Tucker
Compton J. Tucker Goddard Space Flight Center
Ranga B. Myneni
Ranga B. Myneni Boston University
Ralph F. Keeling
Ralph F. Keeling University of California, San Diego
Ramakrishna R. Nemani
Ramakrishna R. Nemani Ames Research Center
Inez Y. Fung
Inez Y. Fung University of California, Berkeley
Ray F. Weiss
Ray F. Weiss University of California, San Diego
Steven W. Running
Steven W. Running University of Montana
Ghassem R. Asrar
Ghassem R. Asrar Universities Space Research Association

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