i10 Productivity
Rankings

National Institute of Water & Atmospheric Research Ltd (NIWA) Scientists i10 Productivity Rankings 2025

Productivity Rankings is a unique service offered only by “AD Scientific Index”. This is a ranking system derived from the i10 index in order to show the productivity of the scientist in publishing scientific articles of value. Productivity Rankings is an instrument that lists productive scientists in a given area, discipline, university, and country and can guide the development of meaningful incentives and academic policies. The world rankings, regional rankings, and university rankings of scientists in this table are developed based on the total i10 index. Additionally, click to view the special rankings based on Productivity Rankings: Scientists Last 6 years' i10 Index", Universities Total i10 Index Rankings 2025, Universities Last 6 Years i10 Index Rankings 2025 "Art and Humanities i10 Productivity Rankings" and "Social Sciences and Humanities i10 Productivity Rankings"

* Total i10 IndexRankings
Ranking Based On Selection :1
New Zealand
Judi Hewitt
Benthic ecology
statistical ecology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
190
150
0.789
* Total i10 IndexRankings
Ranking Based On Selection :4
New Zealand
Ashley Rowden
ecology
marine biology
conservation
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
155
132
0.852
* Total i10 IndexRankings
Ranking Based On Selection :6
New Zealand
Richard McKenzie
uv
ozone
vitamin-d
skin cancer
climate change
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
120
66
0.550
* Total i10 IndexRankings
Ranking Based On Selection :7
New Zealand
Olaf Morgenstern
climate and Earth System modelling
atmospheric chemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
114
95
0.833
* Total i10 IndexRankings
Ranking Based On Selection :12
New Zealand
Barry JF Biggs
Stream ecology
freshwater
algae
periphyton
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
100
60
0.600
* Total i10 IndexRankings
Ranking Based On Selection :14
New Zealand
Robert Davies-Colley
optics of water
water quality
microbiology
stream ecology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
99
61
0.616
* Total i10 IndexRankings
Ranking Based On Selection :16
New Zealand
Philip Barnes
Active plate boundary faulting
submarine neotectonics
sedimentary basins
geohazards
paleoseismology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
95
72
0.758
* Total i10 IndexRankings
Ranking Based On Selection :17
New Zealand
Simon D. Hoyle
Fisheries
stock assessment
population dynamics
modelling
statistics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
94
56
0.596
* Total i10 IndexRankings
Ranking Based On Selection :18
New Zealand
Andrew M. Lohrer
Zoobenthos
Benthic soft-sediment primary production and nutrient dynamics
Disturbance and recovery processes
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
89
73
0.820
* Total i10 IndexRankings
Ranking Based On Selection :19
New Zealand
Chris Tanner
Wetland
water
nutrient
treatment
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
89
60
0.674
* Total i10 IndexRankings
Ranking Based On Selection :20
New Zealand
Joshu Mountjoy
Marine geology
landslides
canyons
active seafloor processes
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
76
65
0.855
* Total i10 IndexRankings
Ranking Based On Selection :21
New Zealand
Andrew M. Lorrey
palaeoclimate
ENSO
tree rings
glaciers
synoptic types
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
69
61
0.884
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 1
Judi Hewitt
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
190
150
0.789
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 2
Malcolm Clark
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
177
113
0.638
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 4
Ashley Rowden
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
155
132
0.852
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 5
Clive Howard-Williams
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
147
37
0.252
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 6
Richard McKenzie
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
120
66
0.550
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 7
Olaf Morgenstern
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
114
95
0.833
climate and Earth System modelling
atmospheric chemistry
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 8
Carolyn Lundquist
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
105
90
0.857
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 9
Guang Zeng
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
102
89
0.873
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 10
John Quinn
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
100
65
0.650
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 11
BJF Biggs
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
100
60
0.600
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 12
Barry JF Biggs
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
100
60
0.600
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 13
Christopher W Hickey
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
100
50
0.500
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 14
Robert Davies-Colley
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
99
61
0.616
optics of water
water quality
microbiology
stream ecology
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 15
Vonda Cummings
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
98
68
0.694
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 16
Philip Barnes
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
95
72
0.758
Active plate boundary faulting
submarine neotectonics
sedimentary basins
geohazards
paleoseismology
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 17
Simon D. Hoyle
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
94
56
0.596
Fisheries
stock assessment
population dynamics
modelling
statistics
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 18
Andrew M. Lohrer
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
89
73
0.820
Zoobenthos
Benthic soft-sediment primary production and nutrient dynamics
Disturbance and recovery processes
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 19
Chris Tanner
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
89
60
0.674
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 20
Joshu Mountjoy
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
76
65
0.855
Marine geology
landslides
canyons
active seafloor processes
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 21
Andrew M. Lorrey
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
69
61
0.884
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 22
Scott Larned
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
65
49
0.754
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 23
AB Macdiarmid
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
63
36
0.571
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 24
David K. Rowe
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
63
22
0.349
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 25
Mike Harvey
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
61
33
0.541