John Southon publications per year

The chart shows the history of publications by John Southon between 1975 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. John Southon published across 51 years, from 1975 to 2025, averaging 11.1 papers a year. Output peaked at 51 publications in 2016. 21 of the 567 publications appeared in the last two years.

No. of publications

10 20 30 40 50

1975 2025

567 publications in total across all disciplines

View publications per year as a table

John Southon: publications per year, 1975 to 2025
Year	Publications
1975	1
1976	4
1977	2
1978	1
1979	1
1980	0
1981	1
1982	2
1983	3
1984	3
1985	5
1986	3
1987	7
1988	1
1989	4
1990	19
1991	5
1992	5
1993	4
1994	5
1995	13
1996	9
1997	10
1998	6
1999	14
2000	15
2001	17
2002	17
2003	16
2004	21
2005	10
2006	16
2007	23
2008	11
2009	9
2010	15
2011	8
2012	12
2013	19
2014	10
2015	20
2016	51
2017	19
2018	16
2019	27
2020	21
2021	16
2022	16
2023	13
2024	13
2025	8
Total	567

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John Southon publication distribution in Earth Science in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Earth Science in 2026. The highlighted bar marks where John Southon sits on this spectrum.

No. of scientists

100 200 300 400 500

38–47 publications 603+

This scientist: 439 publications — 96th percentile

96% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 603 publications or more.

View publications distribution as a table

Number of Earth Science scientists by publication count, Research.com 2026 ranking edition. Based on 9,176 ranked scientists.
Publications	Scientists	This scientist
38–47	5
48–57	33
58–67	94
68–77	161
78–87	278
88–97	376
98–107	404
108–117	484
118–127	540
128–137	557
138–147	491
148–157	495
158–167	458
168–177	490
178–187	414
188–197	401
198–207	333
208–217	292
218–227	290
228–237	262
238–247	243
248–257	208
258–267	185
268–277	147
278–287	128
288–297	119
298–307	120
308–317	107
318–327	93
328–337	87
338–347	64
348–357	87
358–367	60
368–377	60
378–387	34
388–397	50
398–407	44
408–417	31
418–427	39
428–437	27
438–447	36	439
448–457	27
458–467	29
468–477	30
478–487	19
488–497	15
498–507	18
508–517	19
518–527	16
528–537	10
538–547	11
548–557	14
558–567	11
568–577	7
578–587	14
588–597	5
598–602	4
603+	100

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John Southon D-index placement in Earth Science in 2026

The chart shows the D-index (discipline H-index) distribution of Earth Science scientists ranked by Research.com in 2026. The highlighted bar marks where John Southon sits on this spectrum.

No. of scientists

100 200 300

30 D-Index 106+

This scientist: 98 D-Index — 98th percentile

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

The last bar groups every scientist with 106 D-Index or more.

View D-Index distribution as a table

Number of Earth Science scientists by D-index, Research.com 2026 ranking edition. Based on 9,176 ranked scientists.
D-Index	Scientists	This scientist
30	144
31	215
32	278
33	379
34	366
35	372
36	389
37	366
38	344
39	349
40	296
41	289
42	277
43	279
44	248
45	257
46	212
47	202
48	207
49	204
50	183
51	178
52	182
53	178
54	163
55	117
56	163
57	120
58	113
59	136
60	135
61	96
62	103
63	83
64	103
65	83
66	89
67	92
68	89
69	78
70	75
71	53
72	62
73	54
74	35
75	52
76	50
77	32
78	37
79	20
80	33
81	36
82	34
83	34
84	24
85	19
86	18
87	26
88	30
89	17
90	21
91	19
92	15
93	14
94	20
95	9
96	10
97	15
98	13	98
99	3
100	13
101	3
102	9
103	4
104	6
105	6
106+	98

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Research.com Recognitions

2026 - Research.com Earth Science in United States Leader Award
2025 - Research.com Earth Science in United States Leader Award

Overview

John Southon is affiliated with the University of California, Irvine in the United States. Their research spans multiple fields and topics primarily within Earth and Planetary Sciences and Environmental Science.

The main fields of study for John Southon include:

Earth and Planetary Sciences
Environmental Science

Within these broader areas, their work also touches on several specialized subfields:

Atmospheric Science
Ecology
Paleontology
Anthropology
Genetics

The primary research topics John Southon focuses on comprise:

Geology and Paleoclimatology Research
Archaeology and ancient environmental studies
Pleistocene-Era Hominins and Archaeology
Isotope Analysis in Ecology
Wildlife Ecology and Conservation
Methane Hydrates and Related Phenomena
Genetic diversity and population structure

John Southon's publications appear frequently in several scientific journals and conference programs, including:

Radiocarbon
Abstracts with programs - Geological Society of America
Science Advances
Quaternary Science Reviews
Science

Some notable recent papers featuring John Southon's contributions are:

The IntCal20 Northern Hemisphere Radiocarbon Age Calibration Curve (2020), published in Radiocarbon
SHCal20 Southern Hemisphere Calibration, 0-55,000 Years cal BP (2020), published in Radiocarbon
The origins and spread of domestic horses from the Western Eurasian steppes (2021), published in Nature
Estimating US fossil fuel CO ₂ emissions from measurements of ¹⁴ C in atmospheric CO ₂ (2020), published in Proceedings of the National Academy of Sciences
Female hunters of the early Americas (2020), published in Science Advances

The scientist collaborates frequently with a consistent group of coauthors, which include:

Emily Lindsey
Beth Shapiro
Stéphanie Schiavinato
Loreleï Chauvey
Andaine Seguin-Orlando

Best Publications

IntCal13 and Marine13 radiocarbon age calibration curves 0-50,000 years cal BP

Paula J Reimer;Edouard Bard;Alex Bayliss;J Warren Beck

12384
Citations
The IntCal20 Northern Hemisphere Radiocarbon Age Calibration Curve (0-55 cal kBP)

Paula J Reimer;William E N Austin;Edouard Bard;Alex Bayliss

6818
Citations
IntCal04 terrestrial radiocarbon age calibration, 0-26 cal kyr BP

Paula J. Reimer;Mike G.L. Baillie;Edouard Bard;Alex Bayliss

4923
Citations
IntCal09 and Marine09 Radiocarbon Age Calibration Curves, 0–50,000 Years cal BP

Unknown

2965
Citations
Absolute calibration of 10Be AMS standards

Kunihiko Nishiizumi;Mineo Imamura;Marc W. Caffee;John R. Southon

1737
Citations
Forcing of the cold event of 8,200 years ago by catastrophic drainage of Laurentide lakes

Donald C. Barber;Arthur S. Dyke;Claude Hillaire-Marcel;Anne E. Jennings

1502
Citations
Marine04 marine radiocarbon age calibration, 0-26 cal kyr BP

Konrad A Hughen;Mike G L Baillie;Edouard Bard;J Warren Beck

1359
Citations
SHCal20 Southern Hemisphere Calibration, 0–55,000 Years cal BP

Alan G. Hogg;Alan G. Hogg;Timothy J. Heaton;Quan Hua;Jonathan G. Palmer

1278
Citations
Marine Reservoir Corrections for the Indian Ocean and Southeast Asia

John Southon;Michaele Kashgarian;Michel Fontugne;Bernard Metivier

832
Citations
Abrupt onset of the Little Ice Age triggered by volcanism and sustained by sea‐ice/ocean feedbacks

Gifford H. Miller;Gifford H. Miller;Áslaug Geirsdóttir;Yafang Zhong;Darren J. Larsen;Darren J. Larsen

774
Citations
14C activity and global carbon cycle changes over the past 50,000 years.

K. Hughen;S. Lehman;J. Southon;J. Overpeck

582
Citations
Volcanism and deformation since 12,000 years at the Campi Flegrei caldera (Italy)

M.A Di Vito;R Isaia;G Orsi;J Southon

560
Citations
Forest-killing diffuse CO2 emission at Mammoth Mountain as a sign of magmatic unrest

C.D. Farrar;M.L. Sorey;William C. Evans;J.F. Howle

474
Citations
Synchronous radiocarbon and climate shifts during the last deglaciation.

Konrad A. Hughen;John R. Southon;Scott J. Lehman;Jonathan T. Overpeck

469
Citations
Deglacial changes in ocean circulation from an extended radiocarbon calibration

Konrad A. Hughen;Konrad A. Hughen;Jonathan T. Overpeck;Jonathan T. Overpeck;Scott J. Lehman;Michaele Kashgarian

437
Citations
The origins and spread of domestic horses from the Western Eurasian steppes.

Pablo Librado;Naveed Khan;Naveed Khan;Antoine Fages;Mariya A. Kusliy

381
Citations
Carbon-14 in methane sources and in atmospheric methane: the contribution from fossil carbon.

M. Wahlen;N. Tanaka;R. Henry;B. Deck

344
Citations
Marine-derived 14C calibration and activity record for the past 50,000 years updated from the Cariaco Basin

Konrad A. Hughen;John R. Southon;Scott J. Lehman;Chanda J. H. Bertrand

328
Citations
Radiocarbon Variability in the Western North Atlantic During the Last Deglaciation

Laura F. Robinson;Jess F. Adkins;Lloyd D. Keigwin;John Southon

326
Citations
Reservoir Ages in Eastern Pacific Coastal and Estuarine Waters

B. Lynn Ingram;John R. Southon

313
Citations
Ultra small-mass AMS 14C sample preparation and analyses at KCCAMS/UCI Facility

G.M. Santos;J.R. Southon;S. Griffin;S.R. Beaupre

292
Citations
Marine04 Marine radiocarbon age calibration, 26 ? 0 ka BP

K Hughen;M Baille;E Bard;J Beck

250
Citations

Frequent Co-Authors

Scott J. Lehman Institute of Arctic and Alpine Research

John B. Miller National Oceanic and Atmospheric Administration

Guaciara M. Santos University of California, Irvine

Alan G. Hogg University of Waikato

Konrad A Hughen Woods Hole Oceanographic Institution

Hendrik N. Poinar McMaster University

Ross D. E. MacPhee American Museum of Natural History

Hai Cheng Xi'an Jiaotong University

Grant D. Zazula Simon Fraser University

Bernd Kromer Heidelberg University

External Links

Personal website of John Southon

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