World's Best Scientists 2026 revealed!

D-Index & Metrics

Environmental Sciences

D-Index
55
Citations
13487
World Ranking
3798
National Ranking
1449

Sundar A. Christopher 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 Sundar A. Christopher 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: 200 publications — 64th percentile

64% of scientists in this discipline score the same or lower.

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

Sundar A. Christopher 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 Sundar A. Christopher 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: 55 D-Index — 61st percentile

61% of scientists in this discipline score the same or lower.

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

Overview

Sundar A. Christopher is affiliated with the University of Alabama in Huntsville in the United States. Their research primarily spans the fields of Environmental Science and Earth and Planetary Sciences, with a specific focus on Global and Planetary Change, Atmospheric Science, and Earth-Surface Processes.

The main topics of their work include Atmospheric chemistry and aerosols, Atmospheric aerosols and clouds, Atmospheric and Environmental Gas Dynamics, Fire effects on ecosystems, Atmospheric Ozone and Climate, and Aeolian processes and effects.

Christopher's recent papers reflect their focus on atmospheric and environmental science. Notable recent publications include:

  • "Spatiotemporal Heterogeneity of Aerosol and Cloud Properties Over the Southeast Atlantic: An Observational Analysis," 2021, Geophysical Research Letters
  • "High-Resolution Gridded Level 3 Aerosol Optical Depth Data from MODIS," 2020, Remote Sensing
  • "On the differences in the vertical distribution of modeled aerosol optical depth over the southeastern Atlantic," 2023, Atmospheric chemistry and physics
  • "The unusual stubble burning season of 2020 in northern India: a satellite perspective," 2023, International Journal of Remote Sensing
  • "Regional aerosol warming enhanced by the diurnal cycle of low cloud," 2025, Nature Geoscience

Frequent coauthors who have collaborated with Christopher include Ian Chang, R. A. Ferrare, Connor Flynn, Robert Wood, and Paquita Zuidema.

The scientist's work has appeared in several frequent publication venues such as Atmospheric chemistry and physics, Geophysical Research Letters, Remote Sensing, International Journal of Remote Sensing, and Nature Geoscience.

Best Publications

  • A review of biomass burning emissions part III: intensive optical properties of biomass burning particles

    J. S. Reid;T. F. Eck;S. A. Christopher;R. Koppmann

  • Intercomparison between satellite-derived aerosol optical thickness and PM2.5 mass: Implications for air quality studies

    Jun Wang;Sundar A. Christopher

  • A review of measurement-based assessments of the aerosol direct radiative effect and forcing

    H. Yu;H. Yu;Y. J. Kaufman;M. Chin;G. Feingold

  • Satellite remote sensing of particulate matter and air quality assessment over global cities

    Pawan Gupta;Sundar A. Christopher;Jun Wang;Robert Gehrig

  • Remote sensing of particulate pollution from space: have we reached the promised land?

    Raymond M Hoff;Sundar A Christopher

  • Particulate matter air quality assessment using integrated surface, satellite, and meteorological products: Multiple regression approach

    Pawan Gupta;Sundar A. Christopher

  • Smoke, Clouds, and Radiation-Brazil (SCAR-B) Experiment

    Y. J. Kaufman;P. V. Hobbs;V. W. J. H. Kirchhoff;P. Artaxo

  • Observing and understanding the Southeast Asian aerosol system by remote sensing: An initial review and analysis for the Seven Southeast Asian Studies (7SEAS) program

    Jeffrey S. Reid;Edward J. Hyer;Randall S. Johnson;Brent N. Holben

  • Global Monitoring and Forecasting of Biomass-Burning Smoke: Description of and Lessons From the Fire Locating and Modeling of Burning Emissions (FLAMBE) Program

    J.S. Reid;E.J. Hyer;E.M. Prins;D.L. Westphal

  • Use of the Ångstrom exponent to estimate the variability of optical and physical properties of aging smoke particles in Brazil

    Jeffrey S. Reid;Thomas F. Eck;Sundar A. Christopher;Peter V. Hobbs

  • Particulate matter air quality assessment using integrated surface, satellite, and meteorological products: 2. A neural network approach

    Pawan Gupta;Sundar A. Christopher

  • Overview of the Dust and Biomass-burning Experiment and African Monsoon Multidisciplinary Analysis Special Observing Period-0

    Jim M. Haywood;Jacques Pelon;Paola Formenti;N. A. Bharmal

  • Analysis of measurements of Saharan dust by airborne and ground-based remote sensing methods during the Puerto Rico Dust Experiment (PRIDE)

    Jeffrey S. Reid;James E. Kinney;Douglas L. Westphal;Brent N. Holben

  • Longwave Radiative Forcing of Saharan Dust Aerosols Estimated from MODIS, MISR and CERES Observations on Terra

    Jianglong Zhang;Sundar A. Christopher

  • Modelled radiative forcing of the direct aerosol effect with multi-observation evaluation

    Gunnar Myhre;Tore Flatlandsmo Berglen;Tore Flatlandsmo Berglen;M Johnsrud;Christopher Hoyle

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

    Unknown

  • Mesoscale modeling of Central American smoke transport to the United States: 1. “Top-down” assessment of emission strength and diurnal variation impacts

    Jun Wang;Jun Wang;Sundar A. Christopher;U. S. Nair;Jeffrey S. Reid

  • Updated estimate of aerosol direct radiative forcing from satellite observations and comparison against the Hadley Centre climate model

    Nicolas Bellouin;Andy Jones;Jim Haywood;Sundar A. Christopher

  • An “A-Train” Strategy for Quantifying Direct Climate Forcing by Anthropogenic Aerosols

    Theodore L. Anderson;Robert J. Charlson;Nicolas Bellouin;Olivier Boucher

  • Seven year particulate matter air quality assessment from surface and satellite measurements

    P. Gupta;S. A. Christopher

  • Particulate Matter Air Quality Assessment using Integrated Surface, Satellite, and Meteorological Products

    P. Gupta;S. A. Christopher

Frequent Co-Authors

Jianglong Zhang
Jianglong Zhang University of North Dakota
Jun Wang
Jun Wang University of Iowa
Ronald M. Welch
Ronald M. Welch University of Alabama in Huntsville
Jeffrey S. Reid
Jeffrey S. Reid United States Naval Research Laboratory
Brent N. Holben
Brent N. Holben Goddard Space Flight Center
Lorraine A. Remer
Lorraine A. Remer University of Maryland, Baltimore County
Jim Haywood
Jim Haywood University of Exeter
Yoram J. Kaufman
Yoram J. Kaufman Goddard Space Flight Center
Philip B. Russell
Philip B. Russell Ames Research Center
Ben Johnson
Ben Johnson Met Office

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