World's Best Scientists 2026 revealed!

D-Index & Metrics

Environmental Sciences

D-Index
56
Citations
21806
World Ranking
3556
National Ranking
1353

James D. Wickham 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 James D. Wickham 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: 122 publications — 25th percentile

25% of scientists in this discipline score the same or lower.

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

James D. Wickham 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 James D. Wickham 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: 56 D-Index — 63rd percentile

63% of scientists in this discipline score the same or lower.

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

Overview

James D. Wickham is affiliated with the Environmental Protection Agency in the United States. Their research primarily focuses on environmental science, with specific attention to several subfields such as ecology, global and planetary change, environmental engineering, nature and landscape conservation, and water science and technology.

The main topics covered in their work include remote sensing in agriculture, land use and ecosystem services, fire effects on ecosystems, remote sensing and LiDAR applications, hydrology and sediment transport processes, ecology and vegetation dynamics studies, and hydrology and watershed management studies.

Their recent publications include:

  • Conterminous United States land cover change patterns 2001-2016 from the 2016 National Land Cover Database, 2020, ISPRS Journal of Photogrammetry and Remote Sensing
  • Thematic accuracy assessment of the NLCD 2016 land cover for the conterminous United States, 2021, Remote Sensing of Environment
  • Thematic accuracy assessment of the NLCD 2019 land cover for the conterminous United States, 2023, GIScience & Remote Sensing
  • Sediment retention by natural landscapes in the conterminous United States, 2020, The Science of The Total Environment
  • A guide for evaluating and reporting map data quality: Affirming Shao et al. "Overselling overall map accuracy misinforms about research reliability", 2020, Landscape Ecology

Frequent co-authors of James D. Wickham include Jon Dewitz, Stephen V. Stehman, Leila Gass, Kurt H. Riitters, and Anne Neale. These collaborations highlight a network of research focused on environmental data accuracy, landscape and ecosystem analysis, and related remote sensing applications.

Publications have appeared in a variety of journals, notably including:

  • JAWRA Journal of the American Water Resources Association
  • ISPRS Journal of Photogrammetry and Remote Sensing
  • Remote Sensing of Environment
  • GIScience & Remote Sensing
  • The Science of The Total Environment

Best Publications

  • Completion of the 2011 National Land Cover Database for the Conterminous United States – Representing a Decade of Land Cover Change Information

    Collin G. Homer;Jon Dewitz;Limin Yang;Suming Jin

  • A factor analysis of landscape pattern and structure metrics

    Kurt H. Riitters;R.V. O'Neill;C.T. Hunsaker;James D. Wickham

  • Completion of the 2006 National Land Cover Database for the conterminous United States.

    Joyce A. Fry;George Xian;Suming Jin;Jon A. Dewitz

  • Completion of the 2001 National Land Cover Database for the conterminous United States

    Collin Homer;Jon Dewitz;Joyce Fry;Michael Coan

  • Conterminous United States land cover change patterns 2001–2016 from the 2016 National Land Cover Database

    Collin G. Homer;Jon Dewitz;Suming Jin;George Z. Xian

  • Mapping spatial patterns with morphological image processing

    Peter Vogt;Kurt H. Riitters;Christine Estreguil;Jacek Kozak

  • Global-scale patterns of forest fragmentation

    Kurt H. Riitters;James Wickham;Robert V. O'Neill;Bruce Jones

  • Predicting nutrient and sediment loadings to streams from landscape metrics: A multiple watershed study from the United States Mid-Atlantic Region

    K. Bruce Jones;Anne C. Neale;Malisha S. Nash;Rick D. van Remortel

  • Scale problems in reporting landscape pattern at the regional scale

    R.V. O''Neill;C.T. Hunsaker;S.P. Timmins;B.L. Jackson

  • Fragmentation of Continental United States Forests

    Kurt H. Riitters;James D. Wickham;Robert V. O'Neill;K. Bruce Jones

  • Distribution and Causes of Global Forest Fragmentation

    Timothy G. Wade;Kurt H. Riitters;James D. Wickham;K. Bruce Jones

  • Accuracy assessment of NLCD 2006 land cover and impervious surface

    James D. Wickham;Stephen V. Stehman;Leila Gass;Jon Dewitz

  • Monitoring environmental quality at the landscape scale

    Robert V. O'Neill;Carolyn T. Hunsaker;K. Bruce Jones;Kurt H. Riitters

  • How far to the nearest road

    Kurt H. Riitters;James D. Wickham

  • A National Assessment of Green Infrastructure and Change for the Conterminous United States Using Morphological Image Processing

    James D. Wickham;Kurt H. Riitters;Timothy G. Wade;Peter Vogt

  • Change of impervious surface area between 2001 and 2006 in the conterminous United States

    George Z. Xian;Collin G. Homer;Jon Dewitz;Joyce Fry

  • Sensitivity of landscape metrics to pixel size

    J. D. Wickham;K. H. Riitters

  • Landscape pattern metrics and regional assessment

    Robert V. O'Neill;Kurt H. Riitters;James D. Wickham;K. Bruce Jones

  • Thematic accuracy assessment of the 2011 National Land Cover Database (NLCD)

    James Wickham;Stephen V. Stehman;Leila Gass;Jon Dewitz

  • Thematic accuracy of the NLCD 2001 land cover for the conterminous United States

    J.D. Wickham;S.V. Stehman;J.A. Fry;J.H. Smith

Frequent Co-Authors

Kurt H. Riitters
Kurt H. Riitters United States Department of Agriculture
K. Bruce Jones
K. Bruce Jones Desert Research Institute
Robert V. O'Neill
Robert V. O'Neill Oak Ridge National Laboratory
Stephen V. Stehman
Stephen V. Stehman SUNY College of Environmental Science and Forestry
John W. Coulston
John W. Coulston US Forest Service
Thomas R. Loveland
Thomas R. Loveland United States Geological Survey
Kenneth H. Reckhow
Kenneth H. Reckhow Duke University
Glenn W. Suter
Glenn W. Suter Environmental Protection Agency
Curtis H. Flather
Curtis H. Flather US Forest Service
James E. Vogelmann
James E. Vogelmann United States Geological Survey

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Related Online Degrees & Career Pathways

For students interested in Environmental Sciences, pursuing related online degrees can open diverse career opportunities. One popular choice is the best online geology degree, which provides foundational knowledge about Earth processes, minerals, and environmental impact assessments. This degree is ideal for careers in natural resource management, environmental consulting, and hazard mitigation.

Another valuable pathway is Geographic Information Systems (GIS), which combines mapping technology and data analysis. The best GIS undergraduate programs equip students with skills to analyze spatial data critical for environmental planning, urban development, and conservation efforts.

For those aiming to influence environmental policy and community projects, an advanced degree like the best online masters in public administration offers leadership training relevant to managing environmental agencies and nonprofit organizations focused on sustainability.

Moreover, understanding human behavior and social dynamics is key in environmental advocacy. The best online bachelor degree in sociology supports careers that intersect environmental justice, policy development, and community engagement.

Best Scientists Citing James D. Wickham

Trending Scientists

Recently Published Articles