Citation Rankings
Highly Cited Researchers
Open University UK Highly Cited Researchers CitationEngineering & Technology / Earth Sciences Rankings 2025
The Citation Rankings (Highly Cited Researchers) highlight the most cited and influential researchers across a vast range of scientific fields, covering 197 main and sub-disciplines, including the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings. This service, offered exclusively by AD Scientific Index, aims to provide a balanced perspective by excluding data from CERN and other statistical sources that disproportionately favor certain researchers, particularly in the social sciences and humanities. This unique approach addresses the advantages researchers with multi-author publications and CERN involvement hold over others. Furthermore, citation rankings help uncover rule violations and unethical practices within the research community. For more detailed citation analyses, explore the Scientists Last 6 Years Citation Index, Universities Total Citations Rankings 2025, and Universities Last 6 Years Citations Rankings 2025.
* Total Citation Counts Rankings
Ranking Based On Selection :1
Paleoclimatology
paleoecology
paleobotany
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,407
6,999
0.454
* Total Citation Counts Rankings
Ranking Based On Selection :2
Earth Sciences
Geochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,906
3,401
0.245
* Total Citation Counts Rankings
Ranking Based On Selection :3
Climate - sustainability - energy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,231
5,683
0.616
* Total Citation Counts Rankings
Ranking Based On Selection :4
Moon
Lunar volatiles
Mars
Meteorites
Geochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,025
4,905
0.611
* Total Citation Counts Rankings
Ranking Based On Selection :5
geochemistry
geology
flood basalts
weathering
laterites
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,297
3,183
0.436
* Total Citation Counts Rankings
Ranking Based On Selection :6
earth sciences
geochronology
metamorphic petrology
tectonics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,932
2,219
0.450
* Total Citation Counts Rankings
Ranking Based On Selection :7
Organic Geochemistry
Paleoceanography
Climate change
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,632
1,226
0.751
* Total Citation Counts Rankings
Ranking Based On Selection :8
Geology
Planetary Science
Impact Processes
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
427
403
0.944
* Total Citation Counts Rankings
Ranking Based On Selection :9
paleo-environmental
biogeochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
238
165
0.693
* Total Citation Counts Rankings
Ranking Based On Selection :10
earth sciences
geology
planetary sciences
electron microscopy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
142
139
0.979
* Total Citation Counts Rankings
Ranking Based On Selection :11
Volcanology
Noble gases
Geochemistry
Mars
Water/Rock interaction
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
55
47
0.855
* Total Citation Counts Rankings
Ranking Based On Selection :12
Planetary science
impact craters
geochemistry
mass extinctions
astrobiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4
1
0.250
* Total Citation Counts Rankings
Rankings
57,675
4,950
19
Ranking Based On Selection: 1
Robert Spicer
Open University UK
Milton Keynes, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,407
6,999
0.454
Paleoclimatology
paleoecology
paleobotany
* Total Citation Counts Rankings
Rankings
66,038
5,635
21
Ranking Based On Selection: 2
Nick Rogers
Open University UK
Milton Keynes, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,906
3,401
0.245
* Total Citation Counts Rankings
Rankings
107,934
8,893
38
Ranking Based On Selection: 3
Neil R Edwards
Open University UK
Milton Keynes, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,231
5,683
0.616
Climate - sustainability - energy
* Total Citation Counts Rankings
Rankings
126,242
10,290
42
Ranking Based On Selection: 4
Mahesh Anand
Open University UK
Milton Keynes, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,025
4,905
0.611
Moon
Lunar volatiles
Mars
Meteorites
Geochemistry
* Total Citation Counts Rankings
Rankings
140,037
11,228
44
Ranking Based On Selection: 5
Mike Widdowson
Open University UK
Milton Keynes, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,297
3,183
0.436
geochemistry
geology
flood basalts
weathering
laterites
* Total Citation Counts Rankings
Rankings
207,681
15,836
62
Ranking Based On Selection: 6
Clare Warren
Open University UK
Milton Keynes, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,932
2,219
0.450
earth sciences
geochronology
metamorphic petrology
tectonics
* Total Citation Counts Rankings
Rankings
506,880
32,779
130
Ranking Based On Selection: 7
Marcus Badger
Open University UK
Milton Keynes, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,632
1,226
0.751
Organic Geochemistry
Paleoceanography
Climate change
* Total Citation Counts Rankings
Rankings
981,757
53,952
244
Ranking Based On Selection: 8
Lee Francis White
Open University UK
Milton Keynes, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
427
403
0.944
Geology
Planetary Science
Impact Processes
* Total Citation Counts Rankings
Rankings
1,221,733
65,672
324
Ranking Based On Selection: 9
Charlotte Spencer-Jones
Open University UK
Milton Keynes, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
238
165
0.693
paleo-environmental
biogeochemistry
* Total Citation Counts Rankings
Rankings
1,440,966
74,551
389
Ranking Based On Selection: 10
Giulia Degli Alessandrini|Giulia Alessandrini, Giulia D Alessandrini
Open University UK
Milton Keynes, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
142
139
0.979
earth sciences
geology
planetary sciences
electron microscopy
* Total Citation Counts Rankings
Rankings
1,802,042
85,327
462
Ranking Based On Selection: 11
Simone Cogliati
Open University UK
Milton Keynes, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
55
47
0.855
Volcanology
Noble gases
Geochemistry
Mars
Water/Rock interaction
* Total Citation Counts Rankings
Rankings
2,316,389
95,610
536
Ranking Based On Selection: 12
Felicity Williams
Open University UK
Milton Keynes, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4
1
0.250
Planetary science
impact craters
geochemistry
mass extinctions
astrobiology