Citation Rankings
Highly Cited Researchers

Engineering & Technology / Environmental Science & Engineering Highly Cited Researchers 8 Scientists Citation Rankings - 2025

The Citation Rankings (Highly Cited Researchers) list 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
New Zealand
Alan Hogg
Climate Change
Carbon Dating
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
39,863
15,081
0.378
* Total Citation Counts Rankings
Ranking Based On Selection: 2
New Zealand
Ian C Duggan
Invasion Ecology
Biological Invasions
Zooplankton Ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,247
1,374
0.324
* Total Citation Counts Rankings
Ranking Based On Selection: 3
New Zealand
Chris Eames
environmental and sustainability education
climate change education
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,951
1,187
0.402
* Total Citation Counts Rankings
Ranking Based On Selection: 4
New Zealand
Adam Hartland
Speleothem Science
Groundwater
Climate Change
Biogeochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,568
1,091
0.696
* Total Citation Counts Rankings
Ranking Based On Selection: 5
New Zealand
Rebecca Sargisson
Environmental Psychology
Animal Behaviour
Behaviour Analysis
Remembering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,173
666
0.568
* Total Citation Counts Rankings
Ranking Based On Selection: 7
New Zealand
Tanya O'Neill
Antarctic environmental science
Human impacts on soil environments
temperature sensitivity of soil processes
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
406
232
0.571
* Total Citation Counts Rankings
Ranking Based On Selection: 8
New Zealand
Amir Mohammadi
Environmental Science and Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
32
28
0.875
* Total Citation Counts Rankings
Rankings
14,800
New Zealand
47
6
Ranking Based On Selection: 1
Alan Hogg
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
39,863
15,081
0.378
* Total Citation Counts Rankings
Rankings
243,904
New Zealand
1,329
66
Ranking Based On Selection: 2
Ian C Duggan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,247
1,374
0.324
* Total Citation Counts Rankings
Rankings
333,742
New Zealand
1,862
96
Ranking Based On Selection: 3
Chris Eames
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,951
1,187
0.402
environmental and sustainability education
climate change education
* Total Citation Counts Rankings
Rankings
529,359
New Zealand
2,916
162
Ranking Based On Selection: 4
Adam Hartland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,568
1,091
0.696
Speleothem Science
Groundwater
Climate Change
Biogeochemistry
* Total Citation Counts Rankings
Rankings
630,849
New Zealand
3,397
185
Ranking Based On Selection: 5
Rebecca Sargisson
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,173
666
0.568
Environmental Psychology
Animal Behaviour
Behaviour Analysis
Remembering
* Total Citation Counts Rankings
Rankings
774,678
New Zealand
3,988
213
Ranking Based On Selection: 6
Earl Bardsley
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
785
157
0.200
* Total Citation Counts Rankings
Rankings
1,017,225
New Zealand
4,703
246
Ranking Based On Selection: 7
Tanya O'Neill
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
406
232
0.571
Antarctic environmental science
Human impacts on soil environments
temperature sensitivity of soil processes
* Total Citation Counts Rankings
Rankings
1,977,715
New Zealand
6,510
287
Ranking Based On Selection: 8
Amir Mohammadi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
32
28
0.875