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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Environmental Sciences 58 3240 3099 25 22 204 13556

Sagnik Dey publications per year

The chart shows the history of publications by Sagnik Dey between 2002 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Sagnik Dey published across 24 years, from 2002 to 2025, averaging 14 papers a year. Output peaked at 50 publications in 2025. 86 of the 336 publications appeared in the last two years.

No. of publications
10 20 30 40 50
Bar chart. Horizontal axis: year, 2002 to 2025. Vertical axis: number of publications, 0 to 50. Peak 50 publications in 2025. 2002: 3 publications 2003: 2 publications 2004: 7 publications 2005: 6 publications 2006: 7 publications 2007: 3 publications 2008: 5 publications 2009: 3 publications 2010: 2 publications 2011: 5 publications 2012: 7 publications 2013: 4 publications 2014: 6 publications 2015: 14 publications 2016: 10 publications 2017: 19 publications 2018: 13 publications 2019: 21 publications 2020: 26 publications 2021: 17 publications 2022: 34 publications 2023: 36 publications 2024: 36 publications 2025: 50 publications
2002 2025

336 publications in total across all disciplines

View publications per year as a table
Sagnik Dey: publications per year, 2002 to 2025
Year Publications
2002 3
2003 2
2004 7
2005 6
2006 7
2007 3
2008 5
2009 3
2010 2
2011 5
2012 7
2013 4
2014 6
2015 14
2016 10
2017 19
2018 13
2019 21
2020 26
2021 17
2022 34
2023 36
2024 36
2025 50
Total 336
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Sagnik Dey publication distribution in Environmental Sciences in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Environmental Sciences in 2026. The highlighted bar marks where Sagnik Dey sits on this spectrum.

No. of scientists
200 400 600
Bar chart with 66 bars. Horizontal axis: publications, 41–50 to 690+. Vertical axis: number of scientists, 0 to 617. Most scientists, 617, have 121–130 publications. The last bar groups every scientist with 690 publications or more. The highlighted bar, 201–210 publications, is where this scientist sits. 41–50 publications: 21 scientists 51–60 publications: 62 scientists 61–70 publications: 133 scientists 71–80 publications: 257 scientists 81–90 publications: 361 scientists 91–100 publications: 440 scientists 101–110 publications: 492 scientists 111–120 publications: 541 scientists 121–130 publications: 617 scientists 131–140 publications: 544 scientists 141–150 publications: 541 scientists 151–160 publications: 539 scientists 161–170 publications: 444 scientists 171–180 publications: 444 scientists 181–190 publications: 400 scientists 191–200 publications: 377 scientists 201–210 publications: 318 scientists 211–220 publications: 282 scientists 221–230 publications: 263 scientists 231–240 publications: 220 scientists 241–250 publications: 217 scientists 251–260 publications: 180 scientists 261–270 publications: 181 scientists 271–280 publications: 155 scientists 281–290 publications: 130 scientists 291–300 publications: 127 scientists 301–310 publications: 130 scientists 311–320 publications: 85 scientists 321–330 publications: 106 scientists 331–340 publications: 80 scientists 341–350 publications: 83 scientists 351–360 publications: 75 scientists 361–370 publications: 69 scientists 371–380 publications: 52 scientists 381–390 publications: 54 scientists 391–400 publications: 56 scientists 401–410 publications: 44 scientists 411–420 publications: 40 scientists 421–430 publications: 36 scientists 431–440 publications: 25 scientists 441–450 publications: 25 scientists 451–460 publications: 32 scientists 461–470 publications: 29 scientists 471–480 publications: 21 scientists 481–490 publications: 26 scientists 491–500 publications: 26 scientists 501–510 publications: 17 scientists 511–520 publications: 19 scientists 521–530 publications: 15 scientists 531–540 publications: 22 scientists 541–550 publications: 12 scientists 551–560 publications: 15 scientists 561–570 publications: 11 scientists 571–580 publications: 19 scientists 581–590 publications: 9 scientists 591–600 publications: 9 scientists 601–610 publications: 7 scientists 611–620 publications: 11 scientists 621–630 publications: 5 scientists 631–640 publications: 5 scientists 641–650 publications: 6 scientists 651–660 publications: 3 scientists 661–670 publications: 3 scientists 671–680 publications: 4 scientists 681–689 publications: 4 scientists 690+ publications: 100 scientists
41–50 publications 690+

This scientist: 204 publications — 66th percentile

66% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 690 publications or more.

View publications distribution as a table
Number of Environmental Sciences scientists by publication count, Research.com 2026 ranking edition. Based on 9,676 ranked scientists.
Publications Scientists This scientist
41–50 21
51–60 62
61–70 133
71–80 257
81–90 361
91–100 440
101–110 492
111–120 541
121–130 617
131–140 544
141–150 541
151–160 539
161–170 444
171–180 444
181–190 400
191–200 377
201–210 318 204
211–220 282
221–230 263
231–240 220
241–250 217
251–260 180
261–270 181
271–280 155
281–290 130
291–300 127
301–310 130
311–320 85
321–330 106
331–340 80
341–350 83
351–360 75
361–370 69
371–380 52
381–390 54
391–400 56
401–410 44
411–420 40
421–430 36
431–440 25
441–450 25
451–460 32
461–470 29
471–480 21
481–490 26
491–500 26
501–510 17
511–520 19
521–530 15
531–540 22
541–550 12
551–560 15
561–570 11
571–580 19
581–590 9
591–600 9
601–610 7
611–620 11
621–630 5
631–640 5
641–650 6
651–660 3
661–670 3
671–680 4
681–689 4
690+ 100
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Sagnik Dey D-index placement in Environmental Sciences in 2026

The chart shows the D-index (discipline H-index) distribution of Environmental Sciences scientists ranked by Research.com in 2026. The highlighted bar marks where Sagnik Dey sits on this spectrum.

No. of scientists
100 200 300
Bar chart with 97 bars. Horizontal axis: D-Index, 30 to 126+. Vertical axis: number of scientists, 0 to 348. Most scientists, 348, have 45 D-Index. The last bar groups every scientist with 126 D-Index or more. The highlighted bar, 58 D-Index, is where this scientist sits. 30 D-Index: 12 scientists 31 D-Index: 26 scientists 32 D-Index: 51 scientists 33 D-Index: 88 scientists 34 D-Index: 123 scientists 35 D-Index: 163 scientists 36 D-Index: 206 scientists 37 D-Index: 267 scientists 38 D-Index: 265 scientists 39 D-Index: 275 scientists 40 D-Index: 321 scientists 41 D-Index: 343 scientists 42 D-Index: 305 scientists 43 D-Index: 336 scientists 44 D-Index: 330 scientists 45 D-Index: 348 scientists 46 D-Index: 291 scientists 47 D-Index: 275 scientists 48 D-Index: 272 scientists 49 D-Index: 273 scientists 50 D-Index: 263 scientists 51 D-Index: 232 scientists 52 D-Index: 266 scientists 53 D-Index: 217 scientists 54 D-Index: 198 scientists 55 D-Index: 177 scientists 56 D-Index: 202 scientists 57 D-Index: 204 scientists 58 D-Index: 166 scientists 59 D-Index: 177 scientists 60 D-Index: 166 scientists 61 D-Index: 152 scientists 62 D-Index: 143 scientists 63 D-Index: 150 scientists 64 D-Index: 124 scientists 65 D-Index: 119 scientists 66 D-Index: 120 scientists 67 D-Index: 118 scientists 68 D-Index: 82 scientists 69 D-Index: 98 scientists 70 D-Index: 94 scientists 71 D-Index: 105 scientists 72 D-Index: 74 scientists 73 D-Index: 84 scientists 74 D-Index: 70 scientists 75 D-Index: 67 scientists 76 D-Index: 78 scientists 77 D-Index: 60 scientists 78 D-Index: 59 scientists 79 D-Index: 52 scientists 80 D-Index: 47 scientists 81 D-Index: 38 scientists 82 D-Index: 48 scientists 83 D-Index: 42 scientists 84 D-Index: 42 scientists 85 D-Index: 43 scientists 86 D-Index: 29 scientists 87 D-Index: 37 scientists 88 D-Index: 29 scientists 89 D-Index: 30 scientists 90 D-Index: 34 scientists 91 D-Index: 20 scientists 92 D-Index: 22 scientists 93 D-Index: 17 scientists 94 D-Index: 19 scientists 95 D-Index: 24 scientists 96 D-Index: 21 scientists 97 D-Index: 20 scientists 98 D-Index: 24 scientists 99 D-Index: 17 scientists 100 D-Index: 17 scientists 101 D-Index: 21 scientists 102 D-Index: 25 scientists 103 D-Index: 18 scientists 104 D-Index: 26 scientists 105 D-Index: 20 scientists 106 D-Index: 15 scientists 107 D-Index: 10 scientists 108 D-Index: 13 scientists 109 D-Index: 15 scientists 110 D-Index: 12 scientists 111 D-Index: 8 scientists 112 D-Index: 7 scientists 113 D-Index: 9 scientists 114 D-Index: 6 scientists 115 D-Index: 12 scientists 116 D-Index: 7 scientists 117 D-Index: 8 scientists 118 D-Index: 3 scientists 119 D-Index: 5 scientists 120 D-Index: 7 scientists 121 D-Index: 2 scientists 122 D-Index: 4 scientists 123 D-Index: 8 scientists 124 D-Index: 7 scientists 125 D-Index: 9 scientists 126+ D-Index: 92 scientists
30 D-Index 126+

This scientist: 58 D-Index — 67th percentile

67% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 126 D-Index or more.

View D-Index distribution as a table
Number of Environmental Sciences scientists by D-index, Research.com 2026 ranking edition. Based on 9,676 ranked scientists.
D-Index Scientists This scientist
30 12
31 26
32 51
33 88
34 123
35 163
36 206
37 267
38 265
39 275
40 321
41 343
42 305
43 336
44 330
45 348
46 291
47 275
48 272
49 273
50 263
51 232
52 266
53 217
54 198
55 177
56 202
57 204
58 166 58
59 177
60 166
61 152
62 143
63 150
64 124
65 119
66 120
67 118
68 82
69 98
70 94
71 105
72 74
73 84
74 70
75 67
76 78
77 60
78 59
79 52
80 47
81 38
82 48
83 42
84 42
85 43
86 29
87 37
88 29
89 30
90 34
91 20
92 22
93 17
94 19
95 24
96 21
97 20
98 24
99 17
100 17
101 21
102 25
103 18
104 26
105 20
106 15
107 10
108 13
109 15
110 12
111 8
112 7
113 9
114 6
115 12
116 7
117 8
118 3
119 5
120 7
121 2
122 4
123 8
124 7
125 9
126+ 92
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Overview

Sagnik Dey is affiliated with the Indian Institute of Technology Delhi in India. Their research primarily focuses on environmental science, with a significant emphasis on air quality and its impacts on health and the environment.

Their work spans several specialized subfields including health, toxicology and mutagenesis; global and planetary change; atmospheric science; pollution; and environmental engineering. These areas reflect a multidisciplinary approach to understanding complex environmental issues.

The main topics covered in their research include:

  • Air Quality and Health Impacts
  • Climate Change and Health Impacts
  • Energy and Environment Impacts
  • Atmospheric chemistry and aerosols
  • Air Quality Monitoring and Forecasting
  • Atmospheric aerosols and clouds
  • COVID-19 impact on air quality

They have published extensively in several key venues in the environmental sciences, including:

  • ISEE Conference Abstracts
  • Environmental Research Letters
  • Atmospheric Environment
  • Environmental Science & Technology
  • Environmental Research Communications

Frequent collaborators in their research include:

  • Santu Ghosh
  • Dilip Ganguly
  • Ekta Chaudhary
  • Sourangsu Chowdhury
  • Alok Kumar

Notable recent papers authored or coauthored by Sagnik Dey include:

  • "Health and economic impact of air pollution in the states of India: the Global Burden of Disease Study 2019" (2020), published in The Lancet Planetary Health
  • "Subnational mapping of under-5 and neonatal mortality trends in India: the Global Burden of Disease Study 2000-17" (2020), published in The Lancet
  • "Mortality Attributable to Ambient Air Pollution: A Review of Global Estimates" (2022), published in GeoHealth
  • "A review of statistical methods used for developing large-scale and long-term PM2.5 models from satellite data" (2021), published in Remote Sensing of Environment
  • "A Satellite-Based High-Resolution (1-km) Ambient PM2.5 Database for India over Two Decades (2000-2019): Applications for Air Quality Management" (2020), published in Remote Sensing

Best Publications

  • Nations within a nation: variations in epidemiological transition across the states of India, 1990–2016 in the Global Burden of Disease Study

    Lalit Dandona;Rakhi Dandona;G Anil Kumar;D K Shukla

  • The impact of air pollution on deaths, disease burden, and life expectancy across the states of India: the Global Burden of Disease Study 2017

    Kalpana Balakrishnan;Sagnik Dey;Tarun Gupta;R S Dhaliwal

  • Health and economic impact of air pollution in the states of India: the Global Burden of Disease Study 2019

    Anamika Pandey;Michael Brauer;Maureen L Cropper;Kalpana Balakrishnan

  • Variability of aerosol parameters over Kanpur, northern India

    R. P. Singh;R. P. Singh;Sagnik Dey;S. N. Tripathi;Vinod Tare

  • Influence of dust storms on the aerosol optical properties over the Indo‐Gangetic basin

    Sagnik Dey;Sachchida Nand Tripathi;Ramesh P. Singh;Ramesh P. Singh;B. N. Holben

  • Global, regional, and national progress towards Sustainable Development Goal 3.2 for neonatal and child health: all-cause and cause-specific mortality findings from the Global Burden of Disease Study 2019.

    Katherine R Paulson;Aruna M Kamath;Tahiya Alam;Kelly Bienhoff

  • The burden of chronic respiratory diseases and their heterogeneity across the states of India: the Global Burden of Disease Study 1990–2016

    Sundeep Salvi;G Anil Kumar;R S Dhaliwal;Katherine Paulson

  • A climatology of aerosol optical and microphysical properties over the Indian subcontinent from 9 years (2000–2008) of Multiangle Imaging Spectroradiometer (MISR) data

    Sagnik Dey;Larry Di Girolamo

  • Aerosol black carbon radiative forcing at an industrial city in northern India

    S. N. Tripathi;Sagnik Dey;V. Tare;S. K. Satheesh

  • Variability of outdoor fine particulate (PM2.5) concentration in the Indian Subcontinent: A remote sensing approach

    Sagnik Dey;Larry Di Girolamo;Aaron van Donkelaar;S.N. Tripathi

  • Surface latent heat flux as an earthquake precursor

    S. Dey;R. P. Singh

  • Mapping 123 million neonatal, infant and child deaths between 2000 and 2017

    Roy Burstein;Nathaniel J. Henry;Michael L. Collison;Laurie B. Marczak

  • Comparison of MODIS and AERONET derived aerosol optical depth over the Ganga Basin, India

    S. N. Tripathi;Sagnik Dey;A. Chandel;S. Srivastava

  • Cause-specific premature death from ambient PM2.5 exposure in India: Estimate adjusted for baseline mortality.

    Sourangsu Chowdhury;Sagnik Dey

  • Inferring absorbing organic carbon content from AERONET data

    A. Arola;G. Schuster;G. Myhre;S. Kazadzis

  • Indian annual ambient air quality standard is achievable by completely mitigating emissions from household sources.

    Sourangsu Chowdhury;Sourangsu Chowdhury;Sagnik Dey;Sarath Guttikunda;Ajay Pillarisetti

  • A decade of change in aerosol properties over the Indian subcontinent

    Sagnik Dey;Larry Di Girolamo

  • Ambient PM 2.5 exposure and expected premature mortality to 2100 in India under climate change scenarios

    Sourangsu Chowdhury;Sagnik Dey;Kirk R. Smith

  • Subnational mapping of under-5 and neonatal mortality trends in India: the Global Burden of Disease Study 2000–17

    Rakhi Dandona;G Anil Kumar;Nathaniel J Henry;Vasna Joshua

  • A review of statistical methods used for developing large-scale and long-term PM2.5 models from satellite data

    Unknown

  • Measurements of atmospheric parameters during Indian Space Research Organization Geosphere Biosphere Programme Land Campaign II at a typical location in the Ganga basin: 1. Physical and optical properties

    Vinod Tare;S. N. Tripathi;N. Chinnam;A. K. Srivastava

  • Global warming and local air pollution have reduced wheat yields in India

    Ridhima Gupta;E. Somanathan;Sagnik Dey

Frequent Co-Authors

Sachchida Nand Tripathi
Sachchida Nand Tripathi Indian Institute of Technology Kanpur
Ramesh P. Singh
Ramesh P. Singh Chapman University
U. C. Mohanty
U. C. Mohanty Indian Institute of Technology Bhubaneswar
Atul Kumar Srivastava
Atul Kumar Srivastava Indian Institute of Tropical Meteorology
Rakhi Dandona
Rakhi Dandona Public Health Foundation of India
Randall V. Martin
Randall V. Martin Washington University in St. Louis
Michael Brauer
Michael Brauer University of British Columbia
Tarun Gupta
Tarun Gupta Indian Institute of Technology Kanpur
Theo Vos
Theo Vos Institute for Health Metrics and Evaluation
Brent N. Holben
Brent N. Holben Goddard Space Flight Center

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