World's Best Scientists 2026 revealed!

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Environmental Sciences 54 3937 3764 1499 1383 220 25361

Daniel J. Hayes publications per year

The chart shows the history of publications by Daniel J. Hayes between 1984 and 2026, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Daniel J. Hayes published across 43 years, from 1984 to 2026, averaging 5.9 papers a year. Output peaked at 25 publications in 2015. 11 of the 253 publications appeared in the last two years.

No. of publications
5 10 15 20 25
Bar chart. Horizontal axis: year, 1984 to 2026. Vertical axis: number of publications, 0 to 25. Peak 25 publications in 2015. 1984: 2 publications 1985: 0 publications 1986: 0 publications 1987: 0 publications 1988: 1 publication 1989: 0 publications 1990: 0 publications 1991: 0 publications 1992: 0 publications 1993: 0 publications 1994: 0 publications 1995: 0 publications 1996: 0 publications 1997: 0 publications 1998: 0 publications 1999: 0 publications 2000: 1 publication 2001: 3 publications 2002: 1 publication 2003: 0 publications 2004: 0 publications 2005: 0 publications 2006: 4 publications 2007: 3 publications 2008: 4 publications 2009: 6 publications 2010: 8 publications 2011: 8 publications 2012: 18 publications 2013: 17 publications 2014: 19 publications 2015: 25 publications 2016: 22 publications 2017: 22 publications 2018: 11 publications 2019: 20 publications 2020: 13 publications 2021: 13 publications 2022: 7 publications 2023: 4 publications 2024: 10 publications 2025: 9 publications 2026: 2 publications
1984 2026

253 publications in total across all disciplines

View publications per year as a table
Daniel J. Hayes: publications per year, 1984 to 2026
Year Publications
1984 2
1985 0
1986 0
1987 0
1988 1
1989 0
1990 0
1991 0
1992 0
1993 0
1994 0
1995 0
1996 0
1997 0
1998 0
1999 0
2000 1
2001 3
2002 1
2003 0
2004 0
2005 0
2006 4
2007 3
2008 4
2009 6
2010 8
2011 8
2012 18
2013 17
2014 19
2015 25
2016 22
2017 22
2018 11
2019 20
2020 13
2021 13
2022 7
2023 4
2024 10
2025 9
2026 2
Total 253
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Daniel J. Hayes publications per year - data summary

  • Daniel J. Hayes, a Environmental Sciences scholar from University of Maine, has 253 publications recorded across 43 years, from 1984 to 2026.
  • The oldest publication on record dates to 1984 and the most recent to 2026.
  • The most productive year is 2015, with 25 publications.
  • The least productive years with any output are 1988, 2000 and 2002, with 1 publication each.
  • 17 of the 43 years in the span carry no publications at all (1985, 1986, 1987, 1989 and others).
  • The rate of publication averages 5.9 papers per year over the whole span, or 9.7 per year counting only the 26 years with at least one publication.
  • The last 5 years on the chart (2022-2026) hold 32 publications, 13% of the career total.
  • Split into equal eras - 1984-1998: 3 publications (0.2 per year); 1999-2013: 73 publications (4.9 per year); 2014-2026: 177 publications (13.6 per year).
  • Comparing the opening and closing eras, the overall trend of publication is rising.

Daniel J. Hayes 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 Daniel J. Hayes 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, 211–220 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: 220 publications — 70th percentile

70% 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
211–220 282 220
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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Daniel J. Hayes publication distribution in Environmental Sciences in 2026 - data summary

  • The chart plots the publication count of all 9,676 Environmental Sciences scientists ranked by Research.com in 2026, grouped into 66 ranges running from 41–50 to 690+ publications.
  • Daniel J. Hayes, a Environmental Sciences scholar from University of Maine, records 220 publications - the 70th percentile of the discipline.
  • 70% of ranked Environmental Sciences scientists score the same or lower than Daniel J. Hayes, and about 30% score higher.
  • The median of the discipline falls in the 161–170 publications range, and Daniel J. Hayes ranks above the median.
  • The most crowded range is 121–130 publications, holding 617 scientists (6% of the field).
  • 67% of the field sits in the lowest quarter of the value range (up to 201–210 publications), so the distribution is heavily right-skewed and high scores are rare.
  • The final bar has no upper bound: it groups every scientist with 690 publications or more, 100 scientists in all (1% of the field).

Daniel J. Hayes 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 Daniel J. Hayes 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, 54 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: 54 D-Index — 59th percentile

59% 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 54
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
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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Daniel J. Hayes D-index placement in Environmental Sciences in 2026 - data summary

  • The chart plots the discipline H-index (D-index) of all 9,676 Environmental Sciences scientists ranked by Research.com in 2026, grouped into 97 ranges running from 30 to 126+ D-Index.
  • Daniel J. Hayes, a Environmental Sciences scholar from University of Maine, records 54 D-Index - the 59th percentile of the discipline.
  • 59% of ranked Environmental Sciences scientists score the same or lower than Daniel J. Hayes, and about 41% score higher.
  • The median of the discipline falls in the 51 D-Index range, and Daniel J. Hayes ranks above the median.
  • The most crowded range is 45 D-Index, holding 348 scientists (4% of the field).
  • 59% of the field sits in the lowest quarter of the value range (up to 54 D-Index), so the distribution is heavily right-skewed and high scores are rare.
  • The final bar has no upper bound: it groups every scientist with 126 D-Index or more, 92 scientists in all (<1% of the field).

Overview

Daniel J. Hayes is affiliated with the University of Maine in the United States and has contributed extensively to the fields of Environmental Science and Earth and Planetary Sciences. Their research spans a range of subfields including Global and Planetary Change, Atmospheric Science, Oceanography, Environmental Engineering, and Economics and Econometrics.

Their recent scholarly output includes notable papers that reflect an emphasis on climate dynamics, ecosystem interactions, and soil carbon. Key publications feature:

  • Soil moisture and hydrology projections of the permafrost region - a model intercomparison (2020), published in The Cryosphere
  • Soil Organic Carbon Across Mexico and the Conterminous United States (1991-2010) (2020), published in Global Biogeochemical Cycles
  • Integrating terrestrial and aquatic ecosystems to constrain estimates of land-atmosphere carbon exchange (2023), published in Nature Communications
  • A Multi-Sensor Unoccupied Aerial System Improves Characterization of Vegetation Composition and Canopy Properties in the Arctic Tundra (2020), published in Remote Sensing
  • Evaluation of simulated soil carbon dynamics in Arctic-Boreal ecosystems (2020), published in Environmental Research Letters

The scientist collaborates frequently with a group of co-authors, including Xinyuan Wei, Dedi Yang, Shawn Serbin, David Butman, and Wouter Hantson.

Their research is published primarily in a core set of venues, which include:

  • Environmental Research Letters
  • OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information)
  • Remote Sensing
  • Global Biogeochemical Cycles
  • Nature Communications

Daniel J. Hayes's work covers several interrelated topics that address environmental and climatic processes. These main topics are:

  • Climate change and permafrost
  • Atmospheric and Environmental Gas Dynamics
  • Cryospheric studies and observations
  • Marine and coastal ecosystems
  • Forest Management and Policy
  • Geology and Paleoclimatology Research
  • Soil and Water Nutrient Dynamics

The research conducted by Hayes contributes to enhanced understanding of complex natural systems, combining terrestrial and aquatic ecosystem analyses with advanced modeling techniques. Their involvement in areas such as permafrost hydrology and carbon dynamics reflects ongoing engagement with pressing environmental science challenges that pertain to global climate and ecosystems.

Best Publications

  • A Large and Persistent Carbon Sink in the World’s Forests

    Yude Pan;Richard A. Birdsey;Jingyun Fang;Jingyun Fang;Richard Houghton

  • Climate change and the permafrost carbon feedback

    E. A. G. Schuur;A. D. McGuire;C. Schädel;C. Schädel;Guido Grosse

  • Sensitivity of the carbon cycle in the Arctic to climate change

    A. David McGuire;Leif G. Anderson;Torben R. Christensen;Scott Dallimore

  • Global patterns of drought recovery

    Christopher R. Schwalm;Christopher R. Schwalm;William R. L. Anderegg;Anna M. Michalak;Joshua B. Fisher

  • Circumpolar distribution and carbon storage of thermokarst landscapes

    D. Olefeldt;S. Goswami;Guido Grosse;D. Hayes

  • Dependence of the evolution of carbon dynamics in the northern permafrost region on the trajectory of climate change.

    A. David McGuire;David M. Lawrence;Charles Koven;Joy S. Clein

  • An assessment of the carbon balance of Arctic tundra: comparisons among observations, process models, and atmospheric inversions

    A. D. McGuire;Torben Christensen;D. Hayes;Arnaud Heroult

  • Expert assessment of vulnerability of permafrost carbon to climate change

    E. A. G. Schuur;B. W. Abbott;W. B. Bowden;V. Brovkin

  • Comparison of change-detection techniques for monitoring tropical forest clearing and vegetation regrowth in a time series

    Daniel J. Hayes;Steven A. Sader

  • Global patterns and controls of soil organic carbon dynamics as simulated by multiple terrestrial biosphere models: Current status and future directions.

    Hanqin Tian;Chaoqun Lu;Jia Yang;Kamaljit Banger

  • North American Carbon Program (NACP) regional interim synthesis: Terrestrial biospheric model intercomparison

    D. N. Huntzinger;W. M. Post;Y. Wei;A. M. Michalak

  • Is the northern high-latitude land-based CO2 sink weakening?

    D. J. Hayes;A. D. McGuire;D. W. Kicklighter;Kevin Gurney;Kevin Gurney

  • The North American Carbon Program Multi-Scale Synthesis and Terrestrial Model Intercomparison Project – Part 1: Overview and experimental design

    D. N. Huntzinger;C. Schwalm;A. M. Michalak;K. Schaefer

  • Automated Detection of Cloud and Cloud Shadow in Single-Date Landsat Imagery Using Neural Networks and Spatial Post-Processing

    M. Joseph Hughes;Daniel J. Hayes

  • Uncertainty in the response of terrestrial carbon sink to environmental drivers undermines carbon-climate feedback predictions.

    D. N. Huntzinger;A. M. Michalak;C. Schwalm;C. Schwalm;P. Ciais

  • Recent Arctic tundra fire initiates widespread thermokarst development

    Benjamin M. Jones;Guido Grosse;Christopher D. Arp;Eric K. Miller

  • A simplified, data-constrained approach to estimate the permafrost carbon-climate feedback

    C.D Koven;E.A.G. Schuur;C Schädel;T. J Bohn

  • Layer stacking: A novel algorithm for individual forest tree segmentation from LiDAR point clouds

    Elias Ayrey;Shawn Fraver;John A. Kershaw;Laura S. Kenefic

  • North American terrestrial CO2 uptake largely offset by CH4 and N2O emissions: toward a full accounting of the greenhouse gas budget.

    Hanqin Tian;Guangsheng Chen;Chaoqun Lu;Xiaofeng Xu

  • Forest change monitoring of a remote biosphere reserve

    S. A. Sader;D. J. Hayes;J. A. Hepinstall;M. Coan

  • Soil moisture and hydrology projections of the permafrost region – a model intercomparison

    Christian G. Andresen;Christian G. Andresen;David M. Lawrence;Cathy J. Wilson;A. David McGuire

  • An assessment of the carbon balance of Arctic tundra: Comparisons among observations, process models, and atmospheric inversions

    A. D. McGuire;T. R. Christensen;D. J. Hayes;A. Heroult

Frequent Co-Authors

Deborah N. Huntzinger
Deborah N. Huntzinger Northern Arizona University
Kevin Schaefer
Kevin Schaefer Cooperative Institute for Research in Environmental Sciences
Christopher R. Schwalm
Christopher R. Schwalm Woodwell Climate Research Center
Joshua B. Fisher
Joshua B. Fisher Chapman University
Shushi Peng
Shushi Peng Peking University
A. D. McGuire
A. D. McGuire University of Alaska Fairbanks
Atul K. Jain
Atul K. Jain University of Illinois at Urbana-Champaign
A. David McGuire
A. David McGuire University of Alaska Fairbanks
Anna M. Michalak
Anna M. Michalak Stanford University
Ning Zeng
Ning Zeng University of Maryland, College Park

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