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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 88 639 605 282 259 293 36711

Crystal B. Schaaf publications per year

The chart shows the history of publications by Crystal B. Schaaf between 1987 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Crystal B. Schaaf published across 39 years, from 1987 to 2025, averaging 8 papers a year. Output peaked at 21 publications in 2016. 13 of the 312 publications appeared in the last two years.

No. of publications
5 10 15 20
Bar chart. Horizontal axis: year, 1987 to 2025. Vertical axis: number of publications, 0 to 21. Peak 21 publications in 2016. 1987: 1 publication 1988: 1 publication 1989: 2 publications 1990: 1 publication 1991: 1 publication 1992: 1 publication 1993: 4 publications 1994: 3 publications 1995: 3 publications 1996: 1 publication 1997: 1 publication 1998: 3 publications 1999: 4 publications 2000: 11 publications 2001: 11 publications 2002: 10 publications 2003: 9 publications 2004: 12 publications 2005: 10 publications 2006: 9 publications 2007: 4 publications 2008: 15 publications 2009: 11 publications 2010: 12 publications 2011: 12 publications 2012: 11 publications 2013: 16 publications 2014: 19 publications 2015: 11 publications 2016: 21 publications 2017: 14 publications 2018: 20 publications 2019: 14 publications 2020: 4 publications 2021: 8 publications 2022: 6 publications 2023: 3 publications 2024: 4 publications 2025: 9 publications
1987 2025

312 publications in total across all disciplines

View publications per year as a table
Crystal B. Schaaf: publications per year, 1987 to 2025
Year Publications
1987 1
1988 1
1989 2
1990 1
1991 1
1992 1
1993 4
1994 3
1995 3
1996 1
1997 1
1998 3
1999 4
2000 11
2001 11
2002 10
2003 9
2004 12
2005 10
2006 9
2007 4
2008 15
2009 11
2010 12
2011 12
2012 11
2013 16
2014 19
2015 11
2016 21
2017 14
2018 20
2019 14
2020 4
2021 8
2022 6
2023 3
2024 4
2025 9
Total 312
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Crystal B. Schaaf 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 Crystal B. Schaaf 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, 291–300 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: 293 publications — 85th percentile

85% 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
211–220 282
221–230 263
231–240 220
241–250 217
251–260 180
261–270 181
271–280 155
281–290 130
291–300 127 293
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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Crystal B. Schaaf 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 Crystal B. Schaaf 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, 88 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: 88 D-Index — 93rd percentile

93% 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
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 88
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

Crystal B. Schaaf is affiliated with the University of Massachusetts Boston in the United States. Their research contributions primarily focus on environmental science and earth and planetary sciences, with an emphasis on global and planetary change, ecology, atmospheric science, environmental engineering, and nature and landscape conservation.

The main topics explored in their work include:

  • Remote Sensing in Agriculture
  • Remote Sensing and LiDAR Applications
  • Cryospheric studies and observations
  • Atmospheric and Environmental Gas Dynamics
  • Forest ecology and management
  • Climate change and permafrost
  • Land Use and Ecosystem Services

Crystal B. Schaaf has coauthored multiple publications with several frequent collaborators, including:

  • Angela Erb (11 collaborations)
  • Zhuosen Wang (10 collaborations)
  • Xiaoyang Zhang (6 collaborations)
  • Michael A. Wulder (5 collaborations)
  • David P. Roy (5 collaborations)

Their publication record spans a variety of scientific venues, with repeated contributions to the following journals:

  • Remote Sensing of Environment (9 publications)
  • Remote Sensing (5 publications)
  • SSRN Electronic Journal (3 publications)
  • Frontiers in Remote Sensing (2 publications)
  • Nature Communications (1 publication)

Among recent publications, notable papers include:

  • "Fifty years of Landsat science and impacts," 2022, Remote Sensing of Environment
  • "Terrestrial laser scanning in forest ecology: Expanding the horizon," 2020, Remote Sensing of Environment
  • "Need and vision for global medium-resolution Landsat and Sentinel-2 data products," 2023, Remote Sensing of Environment
  • "Continuity between NASA MODIS Collection 6.1 and VIIRS Collection 2 land products," 2024, Remote Sensing of Environment
  • "Detecting Change in Forest Structure with Simulated GEDI Lidar Waveforms: A Case Study of the Hemlock Woolly Adelgid (HWA; Adelges tsugae) Infestation," 2020, Remote Sensing

Crystal B. Schaaf is also an author of a book titled Aboveground Woody Biomass Product Validation Good Practices Protocol, published by Ghent University in 2021.

Best Publications

  • Global land cover mapping from MODIS: algorithms and early results

    M.A Friedl;D.K McIver;J.C.F Hodges;X.Y Zhang

  • Monitoring vegetation phenology using MODIS

    Xiaoyang Zhang;Mark A. Friedl;Crystal B. Schaaf;Alan H. Strahler

  • First operational BRDF, albedo nadir reflectance products from MODIS

    Crystal B Schaaf;Feng Gao;Alan H Strahler;Wolfgang Lucht

  • Landsat-8: Science and Product Vision for Terrestrial Global Change Research

    David P. Roy;M.A. Wulder;Thomas R. Loveland;C.E. Woodcock

  • An algorithm for the retrieval of albedo from space using semiempirical BRDF models

    W. Lucht;C.B. Schaaf;A.H. Strahler

  • Current status of Landsat program, science, and applications

    Michael A. Wulder;Thomas R. Loveland;David P. Roy;Christopher J. Crawford

  • Fifty years of Landsat science and impacts

    Unknown

  • Global vegetation phenology from Moderate Resolution Imaging Spectroradiometer (MODIS): Evaluation of global patterns and comparison with in situ measurements

    Xiaoyang Zhang;Mark A. Friedl;Crystal B. Schaaf

  • Climate controls on vegetation phenological patterns in northern mid‐ and high latitudes inferred from MODIS data

    Xiaoyang Zhang;Mark A. Friedl;Crystal B. Schaaf;Alan H. Strahler

  • Multi-temporal MODIS-Landsat data fusion for relative radiometric normalization, gap filling, and prediction of Landsat data

    David P. Roy;David P. Roy;Junchang Ju;Junchang Ju;Philip Lewis;Philip Lewis;Crystal Schaaf;Crystal Schaaf

  • Validating MODIS land surface reflectance and albedo products: methods and preliminary results

    Shunlin Liang;Hongliang Fang;Mingzhen Chen;Chad J Shuey

  • Benefits of the free and open Landsat data policy

    Zhe Zhu;Michael A. Wulder;David P. Roy;Curtis E. Woodcock

  • Global retrieval of bidirectional reflectance and albedo over land from EOS MODIS and MISR data: Theory and algorithm

    W. Wanner;A. H. Strahler;B. Hu;P. Lewis

  • Terrestrial laser scanning in forest ecology: Expanding the horizon

    Kim Calders;Jennifer Adams;John Armston;Harm Bartholomeus

  • The Vegetation Adjusted NTL Urban Index: A new approach to reduce saturation and increase variation in nighttime luminosity

    Qingling Zhang;Crystal Schaaf;Karen C. Seto

  • A general method to normalize Landsat reflectance data to nadir BRDF adjusted reflectance

    David P. Roy;Hankui Zhang;Junchang Ju;Junchang Ju;Jose Luis Gomez-Dans

  • The footprint of urban climates on vegetation phenology

    Xiaoyang Zhang;Mark A. Friedl;Crystal B. Schaaf;Alan H. Strahler

  • Accuracy assessment of the MODIS 16-day albedo product for snow: comparisons with Greenland in situ measurements

    Julienne Stroeve;Jason E. Box;Feng Gao;Shunlin Liang

  • Spatially complete global spectral surface albedos: value-added datasets derived from Terra MODIS land products

    E.G. Moody;M.D. King;S. Platnick;C.B. Schaaf

  • Intercomparison of MODIS albedo retrievals and in situ measurements across the global FLUXNET network

    Alessandro Cescatti;Barbara Marcolla;Suresh K. Santhana Vannan;Jerry Yun Pan

  • New directions in earth observing: Scientific applications of multiangle remote sensing

    David J. Diner;Gregory P. Asner;Roger Davies;Yuri Knyazikhin

Frequent Co-Authors

Alan H. Strahler
Alan H. Strahler Boston University
Zhuosen Wang
Zhuosen Wang University of Maryland, College Park
Miguel O. Román
Miguel O. Román Goddard Space Flight Center
Xiaoyang Zhang
Xiaoyang Zhang South Dakota State University
Xiaowen Li
Xiaowen Li Tsinghua University
Mark A. Friedl
Mark A. Friedl Boston University
Wolfgang Lucht
Wolfgang Lucht Potsdam Institute for Climate Impact Research
Curtis E. Woodcock
Curtis E. Woodcock Boston University
Philip Lewis
Philip Lewis University College London
Jeffrey G. Masek
Jeffrey G. Masek Goddard Space Flight Center

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