World's Best Scientists 2026 revealed!

D-Index & Metrics

Environmental Sciences

D-Index
53
Citations
15702
World Ranking
4157
National Ranking
1572

Andrew M. Sayer 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 Andrew M. Sayer sits on this spectrum.

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: 283 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: 25 scientists 501–510 publications: 17 scientists 511–520 publications: 18 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 681–686 publications: 3 scientists 687+ publications: 100 scientists
41 publications 687+

This scientist: 149 publications — 41st percentile

41% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 687 publications or more.

Andrew M. Sayer 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 Andrew M. Sayer sits on this spectrum.

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: 199 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: 19 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: 99 scientists
30 D-Index 125+

This scientist: 53 D-Index — 57th percentile

57% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 125 D-Index or more.

Overview

Andrew M. Sayer is affiliated with the Goddard Space Flight Center in the United States. Their research focuses primarily on Environmental Science and Earth and Planetary Sciences, with a significant emphasis on Global and Planetary Change and Atmospheric Science.

The scientist has contributed substantially to the study of atmospheric chemistry and aerosols, atmospheric aerosols and clouds, atmospheric and environmental gas dynamics, atmospheric ozone and climate, air quality monitoring and forecasting, marine and coastal ecosystems, and air quality and health impacts.

Frequent co-authors in their research include:

  • Alexei Lyapustin
  • R. C. Levy
  • Amir Ibrahim
  • N. Christina Hsu
  • Ralph A. Kahn

Andrew M. Sayer has published in multiple scientific venues with recurrent publications in:

  • Atmospheric Measurement Techniques
  • Atmospheric Chemistry and Physics
  • Zenodo (CERN European Organization for Nuclear Research)
  • Environmental Science & Technology
  • Earth and Space Science

Among recent papers authored or co-authored, the following are notable:

  • "Global Estimates and Long-Term Trends of Fine Particulate Matter Concentrations (1998-2018)," 2020, Environmental Science & Technology
  • "Monthly Global Estimates of Fine Particulate Matter and Their Uncertainty," 2021, Environmental Science & Technology
  • "Validation of GRASP algorithm product from POLDER/PARASOL data and assessment of multi-angular polarimetry potential for aerosol monitoring," 2020, Earth System Science Data
  • "Merging regional and global aerosol optical depth records from major available satellite products," 2020, Atmospheric Chemistry and Physics
  • "Direct and semi-direct radiative forcing of biomass-burning aerosols over the southeast Atlantic (SEA) and its sensitivity to absorbing properties: a regional climate modeling study," 2020, Atmospheric Chemistry and Physics

Their work covers topics related to fine particulate matter concentrations, aerosol optical depth, aerosol monitoring through satellite data, and the radiative forcing effects of aerosols in regional climate models.

Best Publications

  • The Collection 6 MODIS aerosol products over land and ocean

    R. C. Levy;S. Mattoo;L. A. Munchak;L. A. Remer

  • Global Estimates of Fine Particulate Matter Using a Combined Geophysical-Statistical Method with Information from Satellites, Models, and Monitors

    Aaron Van Donkelaar;Randall V. Martin;Randall V. Martin;Michael Brauer;N. Christina Hsu

  • Enhanced Deep Blue Aerosol Retrieval Algorithm: The Second Generation

    N. C. Hsu;M.-J. Jeong;C. Bettenhausen;A. M. Sayer;A. M. Sayer

  • Global Estimates and Long-Term Trends of Fine Particulate Matter Concentrations (1998-2018).

    Melanie S Hammer;Melanie S Hammer;Aaron van Donkelaar;Aaron van Donkelaar;Chi Li;Chi Li;Alexei Lyapustin;Alexei Lyapustin

  • MODIS Collection 6 aerosol products: Comparison between Aqua's e-Deep Blue, Dark Target, and "merged" data sets, and usage recommendations

    A. M. Sayer;A. M. Sayer;L. A. Munchak;N. C. Hsu;R. C. Levy

  • Satellite-Based Spatiotemporal Trends in PM2.5 Concentrations: China 2004-2013

    Zongwei Ma;Xuefei Hu;Andrew M. Sayer;Robert Levy

  • Monthly Global Estimates of Fine Particulate Matter and Their Uncertainty.

    Aaron van Donkelaar;Aaron van Donkelaar;Melanie S. Hammer;Liam Bindle;Michael Brauer;Michael Brauer

  • Validation and uncertainty estimates for MODIS Collection 6 “Deep Blue” aerosol data

    A. M. Sayer;A. M. Sayer;N. C. Hsu;C. Bettenhausen;M.-J. Jeong

  • Aerosol indirect effects – general circulation model intercomparison and evaluation with satellite data

    Johannes Quaas;Yi Ming;Surabi Menon;Surabi Menon;T. Takemura

  • Global and regional trends of aerosol optical depth over land and ocean using SeaWiFS measurements from 1997 to 2010

    N. C. Hsu;R. Gautam;R. Gautam;A. M. Sayer;A. M. Sayer;C. Bettenhausen

  • Multi-decadal aerosol variations from 1980 to 2009: a perspective from observations and a global model

    Mian Chin;T. Diehl;T. Diehl;Q. Tan;Q. Tan;J. M. Prospero

  • VIIRS Deep Blue Aerosol Products Over Land: Extending the EOS Long‐Term Aerosol Data Records

    N. C. Hsu;J. Lee;J. Lee;A. M. Sayer;A. M. Sayer;W. Kim;W. Kim

  • Validation, Stability, and Consistency of MODIS Collection 6.1 and VIIRS Version 1 Deep Blue Aerosol Data Over Land

    Andrew M. Sayer;Andrew M. Sayer;N. Christina Hsu;Jaehwa Lee;Jaehwa Lee;Woogyung V. Kim;Woogyung V. Kim

  • Aerosol remote sensing over land: A comparison of satellite retrievals using different algorithms and instruments

    A.A. Kokhanovsky;F.-M. Breon;A. Cacciari;E. Carboni

  • An Overview of Regional Experiments on Biomass Burning Aerosols and Related Pollutants in Southeast Asia: From BASE-ASIA and the Dongsha Experiment to 7-SEAS

    Neng Huei Lin;Si Chee Tsay;Hal B. Maring;Ming Cheng Yen

  • Validation of GRASP algorithm product from POLDER/PARASOL data and assessment of multi-angular polarimetry potential for aerosol monitoring

    Cheng Chen;Oleg Dubovik;David Fuertes;Pavel Litvinov

  • Merging regional and global aerosol optical depth records from major available satellite products

    Larisa Sogacheva;Thomas Popp;Andrew M. Sayer;Andrew M. Sayer;Oleg Dubovik

  • Global and regional evaluation of over-land spectral aerosol optical depth retrievals from SeaWiFS

    A. M. Sayer;A. M. Sayer;N. C. Hsu;C. Bettenhausen;M.-J. Jeong

  • The inter-comparison of major satellite aerosol retrieval algorithms using simulated intensity and polarization characteristics of reflected light

    Alexander A. Kokhanovsky;J.L. Deuzé;D.J. Diner;O. Dubovik

  • SeaWiFS Ocean Aerosol Retrieval (SOAR): Algorithm, validation, and comparison with other data sets

    A. M. Sayer;A. M. Sayer;N. C. Hsu;C. Bettenhausen;Z. Ahmad;Z. Ahmad

  • Satellite Ocean Aerosol Retrieval (SOAR) Algorithm Extension to S‐NPP VIIRS as Part of the “Deep Blue” Aerosol Project

    A. M. Sayer;A. M. Sayer;N. C. Hsu;J. Lee;J. Lee;C. Bettenhausen

  • Direct and semi-direct radiative forcing of biomass-burning aerosols over the southeast Atlantic (SEA) and its sensitivity to absorbing properties: a regional climate modeling study

    Marc Mallet;Fabien Solmon;Pierre Nabat;Nellie Elguindi

Frequent Co-Authors

N. Christina Hsu
N. Christina Hsu Goddard Space Flight Center
Roy G. Grainger
Roy G. Grainger University of Oxford
Robert C. Levy
Robert C. Levy Goddard Space Flight Center
Brent N. Holben
Brent N. Holben Goddard Space Flight Center
Alexei Lyapustin
Alexei Lyapustin Goddard Space Flight Center
Ralph A. Kahn
Ralph A. Kahn Goddard Space Flight Center
Alexander Smirnov
Alexander Smirnov Goddard Space Flight Center
Randall V. Martin
Randall V. Martin Washington University in St. Louis
Jens Redemann
Jens Redemann University of Oklahoma
Neng-Huei Lin
Neng-Huei Lin National Central University

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Related Online Degrees & Career Pathways

Studying Environmental Sciences opens doors to diverse career paths, many of which align with other complementary fields. For instance, Geographic Information Systems (GIS) play a critical role in environmental data analysis and mapping. Students interested in this technical aspect can explore various colleges with GIS programs to gain specialized skills that enhance their environmental careers.

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Understanding social dynamics is essential for effective environmental advocacy. Online degrees in sociology provide insights into human behavior and societal trends impacting environmental conservation. Prospective students can find valuable information on online bachelors degree programs in sociology that complement environmental science studies.

Additionally, environmental educators and researchers may consider advanced study through an Education Doctoral degree. Some programs offer pathways without the traditional dissertation requirement, easing the process of obtaining higher qualifications. Explore options for education doctoral programs without dissertation to advance your expertise and impact in environmental education.

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