Discover the world’s highly cited researchers through the AD Scientific Index 2025 Citation Rankings.
These rankings evaluate scientists based on their total and recent citation counts, capturing the breadth and real-time currency of academic recognition. Citation data reveals how widely a scholar’s work is referenced, applied, and extended across diverse disciplines. The rankings are routinely updated to reflect ongoing citation growth, while eliminating distortions from excessive co-authorship and institutional inflation. Premium tools provide access to detailed citation dynamics, unethical citation behavior detection, and field-normalized benchmarking.
* Total Citation Rankings
Rankings

3,304
World Rank

61
Country Rank

1
University
Ranking Based On Selection:
1
Engineering & Technology / Environmental Science & Engineering
Environmental Soil Science & Biogeochemistr
Environmental Soil Science & Biogeochemistr
Citation Metrics
-
Total102,012
-
Last 6 Years60,695
-
Last 6 Years / Total0.595
* Total Citation Rankings
Rankings

4,517
World Rank

107
Country Rank

1
University
Ranking Based On Selection:
2
Engineering & Technology / Environmental Science & Engineering
Glacier energy and mass balance | Climate change at high altitude region | Glacier hydolog
Glacier energy and mass balance | Climate change at high altitude region | Glacier hydolog
Citation Metrics
-
Total85,417
-
Last 6 Years32,819
-
Last 6 Years / Total0.384
* Total Citation Rankings
Rankings

5,161
World Rank

130
Country Rank

2
University
Ranking Based On Selection:
3
Engineering & Technology / Environmental Science & Engineering
Groundwater | Hydrogeology | Hydrology | Earth Science
Groundwater | Hydrogeology | Hydrology | Earth Science
Citation Metrics
-
Total79,186
-
Last 6 Years29,476
-
Last 6 Years / Total0.372
* Total Citation Rankings
Rankings

5,526
World Rank

144
Country Rank

4
University
Ranking Based On Selection:
4
Engineering & Technology / Environmental Science & Engineering
Water Treatment Processes | Environmental Nanotechnology | Advanced Oxidation | Membrane Technolog
Water Treatment Processes | Environmental Nanotechnology | Advanced Oxidation | Membrane Technolog
Citation Metrics
-
Total76,140
-
Last 6 Years54,583
-
Last 6 Years / Total0.717
* Total Citation Rankings
Rankings

5,997
World Rank

164
Country Rank

1
University
Ranking Based On Selection:
5
Engineering & Technology / Environmental Science & Engineering
Environmental analytical chemistry | Environmental monitoring | the fate of pollutant
Environmental analytical chemistry | Environmental monitoring | the fate of pollutant
Citation Metrics
-
Total72,458
-
Last 6 Years34,010
-
Last 6 Years / Total0.469
* Total Citation Rankings
Rankings

6,544
World Rank

186
Country Rank

2
University
Ranking Based On Selection:
6
Engineering & Technology / Environmental Science & Engineering
Hydrological modeling and prediction | Surface water and groundwater interaction | Hydrological response to climate chang
Hydrological modeling and prediction | Surface water and groundwater interaction | Hydrological response to climate chang
Citation Metrics
-
Total68,781
-
Last 6 Years38,360
-
Last 6 Years / Total0.558
* Total Citation Rankings
Rankings

7,185
World Rank

59
Country Rank

1
University
Ranking Based On Selection:
7
Citation Metrics
-
Total64,718
-
Last 6 Years55,298
-
Last 6 Years / Total0.854
* Total Citation Rankings
Rankings

8,192
World Rank

69
Country Rank

2
University
Ranking Based On Selection:
8
Engineering & Technology / Environmental Science & Engineering
Industrial Wastewater Treatment | Water Quality | Environmental Monitorin
Industrial Wastewater Treatment | Water Quality | Environmental Monitorin
Citation Metrics
-
Total59,769
-
Last 6 Years54,097
-
Last 6 Years / Total0.905
* Total Citation Rankings
Rankings

8,216
World Rank

246
Country Rank

1
University
Ranking Based On Selection:
9
Engineering & Technology / Environmental Science & Engineering
Extreme weather and climate events | climate chang
Extreme weather and climate events | climate chang
Citation Metrics
-
Total59,661
-
Last 6 Years39,335
-
Last 6 Years / Total0.659
* Total Citation Rankings
Rankings

9,095
World Rank

283
Country Rank

3
University
Ranking Based On Selection:
10
Engineering & Technology / Environmental Science & Engineering
environmental science | chemical engineering | water treatment | catalysi
environmental science | chemical engineering | water treatment | catalysi
Citation Metrics
-
Total55,939
-
Last 6 Years31,618
-
Last 6 Years / Total0.565
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* Total Citation Rankings
Rankings

9,100
World Rank

95
Country Rank

1
University
Ranking Based On Selection:
11
Engineering & Technology / Environmental Science & Engineering
Environmental Chemistry | sustainable adsorbents | Biochar | Biochar use in water | soil & climate change mitigatio
Environmental Chemistry | sustainable adsorbents | Biochar | Biochar use in water | soil & climate change mitigatio
Citation Metrics
-
Total56,372
-
Last 6 Years26,089
-
Last 6 Years / Total0.463
* Total Citation Rankings
Rankings

9,177
World Rank

292
Country Rank

5
University
Ranking Based On Selection:
12
Citation Metrics
-
Total55,641
-
Last 6 Years24,040
-
Last 6 Years / Total0.432
* Total Citation Rankings
Rankings

9,731
World Rank

312
Country Rank

24
University
Ranking Based On Selection:
13
Engineering & Technology / Environmental Science & Engineering
Disinfection and DBPs | DBP precursors and characterization | nitrosamines | NOM | T&
Disinfection and DBPs | DBP precursors and characterization | nitrosamines | NOM | T&
Citation Metrics
-
Total53,669
-
Last 6 Years39,707
-
Last 6 Years / Total0.740
* Total Citation Rankings
Rankings

10,777
World Rank

352
Country Rank

6
University
Ranking Based On Selection:
14
Citation Metrics
-
Total50,091
-
Last 6 Years28,696
-
Last 6 Years / Total0.573
* Total Citation Rankings
Rankings

11,433
World Rank

375
Country Rank

27
University
Ranking Based On Selection:
15
Citation Metrics
-
Total48,320
-
Last 6 Years29,945
-
Last 6 Years / Total0.620
* Total Citation Rankings
Rankings

11,469
World Rank

34
Country Rank

15
University
Ranking Based On Selection:
16
Citation Metrics
-
Total48,229
-
Last 6 Years18,099
-
Last 6 Years / Total0.375
* Total Citation Rankings
Rankings

12,487
World Rank

414
Country Rank

34
University
Ranking Based On Selection:
17
Engineering & Technology / Environmental Science & Engineering
Climate Change Economics | Ecological Economics | Emission Data Accountin
Climate Change Economics | Ecological Economics | Emission Data Accountin
Citation Metrics
-
Total45,761
-
Last 6 Years32,060
-
Last 6 Years / Total0.701
* Total Citation Rankings
Rankings

12,544
World Rank

417
Country Rank

1
University
Ranking Based On Selection:
18
Engineering & Technology / Environmental Science & Engineering
Soil remediation | Biochar | Waste management | Soil CN cycling | Water qualit
Soil remediation | Biochar | Waste management | Soil CN cycling | Water qualit
Citation Metrics
-
Total45,633
-
Last 6 Years36,494
-
Last 6 Years / Total0.800
* Total Citation Rankings
Rankings

13,159
World Rank

446
Country Rank

38
University
Ranking Based On Selection:
19
Citation Metrics
-
Total44,392
-
Last 6 Years29,508
-
Last 6 Years / Total0.665
* Total Citation Rankings
Rankings

13,172
World Rank

447
Country Rank

7
University
Ranking Based On Selection:
20
Engineering & Technology / Environmental Science & Engineering
Energy storage and conversion | Batteries | Li-S battery | metal air battery | Na ion batter
Energy storage and conversion | Batteries | Li-S battery | metal air battery | Na ion batter
Citation Metrics
-
Total44,365
-
Last 6 Years35,057
-
Last 6 Years / Total0.790
* Total Citation Rankings
Rankings

13,239
World Rank

450
Country Rank

2
University
Ranking Based On Selection:
21
Engineering & Technology / Environmental Science & Engineering
Atmosperic Environment | Cryosphere | Climate Chang
Atmosperic Environment | Cryosphere | Climate Chang
Citation Metrics
-
Total44,198
-
Last 6 Years28,970
-
Last 6 Years / Total0.655
* Total Citation Rankings
Rankings

13,428
World Rank

458
Country Rank

17
University
Ranking Based On Selection:
22
Engineering & Technology / Environmental Science & Engineering
Climate change | methane budget | wetland methane emissions | C-N-P cycles | land-atmosphere interaction
Climate change | methane budget | wetland methane emissions | C-N-P cycles | land-atmosphere interaction
Citation Metrics
-
Total43,796
-
Last 6 Years31,246
-
Last 6 Years / Total0.713
* Total Citation Rankings
Rankings

13,481
World Rank

460
Country Rank

40
University
Ranking Based On Selection:
23
Citation Metrics
-
Total43,678
-
Last 6 Years28,682
-
Last 6 Years / Total0.657
* Total Citation Rankings
Rankings

14,055
World Rank

486
Country Rank

5
University
Ranking Based On Selection:
24
Engineering & Technology / Environmental Science & Engineering
Disinfection byproducts | emerging contaminants | water treatment | water chemistr
Disinfection byproducts | emerging contaminants | water treatment | water chemistr
Citation Metrics
-
Total42,568
-
Last 6 Years33,030
-
Last 6 Years / Total0.776
* Total Citation Rankings
Rankings

14,316
World Rank

497
Country Rank

6
University
Ranking Based On Selection:
25
Engineering & Technology / Environmental Science & Engineering
Water Treatment | Environmental Engineering | Environmental Nanotechnology | Bioremediatio
Water Treatment | Environmental Engineering | Environmental Nanotechnology | Bioremediatio
Citation Metrics
-
Total42,077
-
Last 6 Years24,029
-
Last 6 Years / Total0.571