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Earth Science
USA
2026

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Earth Science 98 151 129 75 63 426 34960

Jirka Šimůnek publications per year

The chart shows the history of publications by Jirka Šimůnek between 1970 and 2021, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Jirka Šimůnek published across 52 years, from 1970 to 2021, averaging 10.3 papers a year. Output peaked at 38 publications in 2020. 64 of the 536 publications appeared in the last two years.

No. of publications
10 20 30
Bar chart. Horizontal axis: year, 1970 to 2021. Vertical axis: number of publications, 0 to 38. Peak 38 publications in 2020. 1970: 1 publication 1971: 0 publications 1972: 0 publications 1973: 0 publications 1974: 0 publications 1975: 0 publications 1976: 0 publications 1977: 0 publications 1978: 0 publications 1979: 0 publications 1980: 0 publications 1981: 0 publications 1982: 0 publications 1983: 0 publications 1984: 0 publications 1985: 0 publications 1986: 0 publications 1987: 0 publications 1988: 1 publication 1989: 0 publications 1990: 1 publication 1991: 0 publications 1992: 1 publication 1993: 2 publications 1994: 1 publication 1995: 0 publications 1996: 4 publications 1997: 6 publications 1998: 8 publications 1999: 9 publications 2000: 5 publications 2001: 11 publications 2002: 16 publications 2003: 13 publications 2004: 16 publications 2005: 21 publications 2006: 30 publications 2007: 22 publications 2008: 32 publications 2009: 22 publications 2010: 25 publications 2011: 17 publications 2012: 17 publications 2013: 24 publications 2014: 23 publications 2015: 20 publications 2016: 24 publications 2017: 30 publications 2018: 37 publications 2019: 33 publications 2020: 38 publications 2021: 26 publications
1970 2021

536 publications in total across all disciplines

View publications per year as a table
Jirka Šimůnek: publications per year, 1970 to 2021
Year Publications
1970 1
1971 0
1972 0
1973 0
1974 0
1975 0
1976 0
1977 0
1978 0
1979 0
1980 0
1981 0
1982 0
1983 0
1984 0
1985 0
1986 0
1987 0
1988 1
1989 0
1990 1
1991 0
1992 1
1993 2
1994 1
1995 0
1996 4
1997 6
1998 8
1999 9
2000 5
2001 11
2002 16
2003 13
2004 16
2005 21
2006 30
2007 22
2008 32
2009 22
2010 25
2011 17
2012 17
2013 24
2014 23
2015 20
2016 24
2017 30
2018 37
2019 33
2020 38
2021 26
Total 536
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Jirka Šimůnek publication distribution in Earth Science in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Earth Science in 2026. The highlighted bar marks where Jirka Šimůnek sits on this spectrum.

No. of scientists
100 200 300 400 500
Bar chart with 58 bars. Horizontal axis: publications, 38–47 to 603+. Vertical axis: number of scientists, 0 to 557. Most scientists, 557, have 128–137 publications. The last bar groups every scientist with 603 publications or more. The highlighted bar, 418–427 publications, is where this scientist sits. 38–47 publications: 5 scientists 48–57 publications: 33 scientists 58–67 publications: 94 scientists 68–77 publications: 161 scientists 78–87 publications: 278 scientists 88–97 publications: 376 scientists 98–107 publications: 404 scientists 108–117 publications: 484 scientists 118–127 publications: 540 scientists 128–137 publications: 557 scientists 138–147 publications: 491 scientists 148–157 publications: 495 scientists 158–167 publications: 458 scientists 168–177 publications: 490 scientists 178–187 publications: 414 scientists 188–197 publications: 401 scientists 198–207 publications: 333 scientists 208–217 publications: 292 scientists 218–227 publications: 290 scientists 228–237 publications: 262 scientists 238–247 publications: 243 scientists 248–257 publications: 208 scientists 258–267 publications: 185 scientists 268–277 publications: 147 scientists 278–287 publications: 128 scientists 288–297 publications: 119 scientists 298–307 publications: 120 scientists 308–317 publications: 107 scientists 318–327 publications: 93 scientists 328–337 publications: 87 scientists 338–347 publications: 64 scientists 348–357 publications: 87 scientists 358–367 publications: 60 scientists 368–377 publications: 60 scientists 378–387 publications: 34 scientists 388–397 publications: 50 scientists 398–407 publications: 44 scientists 408–417 publications: 31 scientists 418–427 publications: 39 scientists 428–437 publications: 27 scientists 438–447 publications: 36 scientists 448–457 publications: 27 scientists 458–467 publications: 29 scientists 468–477 publications: 30 scientists 478–487 publications: 19 scientists 488–497 publications: 15 scientists 498–507 publications: 18 scientists 508–517 publications: 19 scientists 518–527 publications: 16 scientists 528–537 publications: 10 scientists 538–547 publications: 11 scientists 548–557 publications: 14 scientists 558–567 publications: 11 scientists 568–577 publications: 7 scientists 578–587 publications: 14 scientists 588–597 publications: 5 scientists 598–602 publications: 4 scientists 603+ publications: 100 scientists
38–47 publications 603+

This scientist: 426 publications — 95th percentile

95% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 603 publications or more.

View publications distribution as a table
Number of Earth Science scientists by publication count, Research.com 2026 ranking edition. Based on 9,176 ranked scientists.
Publications Scientists This scientist
38–47 5
48–57 33
58–67 94
68–77 161
78–87 278
88–97 376
98–107 404
108–117 484
118–127 540
128–137 557
138–147 491
148–157 495
158–167 458
168–177 490
178–187 414
188–197 401
198–207 333
208–217 292
218–227 290
228–237 262
238–247 243
248–257 208
258–267 185
268–277 147
278–287 128
288–297 119
298–307 120
308–317 107
318–327 93
328–337 87
338–347 64
348–357 87
358–367 60
368–377 60
378–387 34
388–397 50
398–407 44
408–417 31
418–427 39 426
428–437 27
438–447 36
448–457 27
458–467 29
468–477 30
478–487 19
488–497 15
498–507 18
508–517 19
518–527 16
528–537 10
538–547 11
548–557 14
558–567 11
568–577 7
578–587 14
588–597 5
598–602 4
603+ 100
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Jirka Šimůnek D-index placement in Earth Science in 2026

The chart shows the D-index (discipline H-index) distribution of Earth Science scientists ranked by Research.com in 2026. The highlighted bar marks where Jirka Šimůnek sits on this spectrum.

No. of scientists
100 200 300
Bar chart with 77 bars. Horizontal axis: D-Index, 30 to 106+. Vertical axis: number of scientists, 0 to 389. Most scientists, 389, have 36 D-Index. The last bar groups every scientist with 106 D-Index or more. The highlighted bar, 98 D-Index, is where this scientist sits. 30 D-Index: 144 scientists 31 D-Index: 215 scientists 32 D-Index: 278 scientists 33 D-Index: 379 scientists 34 D-Index: 366 scientists 35 D-Index: 372 scientists 36 D-Index: 389 scientists 37 D-Index: 366 scientists 38 D-Index: 344 scientists 39 D-Index: 349 scientists 40 D-Index: 296 scientists 41 D-Index: 289 scientists 42 D-Index: 277 scientists 43 D-Index: 279 scientists 44 D-Index: 248 scientists 45 D-Index: 257 scientists 46 D-Index: 212 scientists 47 D-Index: 202 scientists 48 D-Index: 207 scientists 49 D-Index: 204 scientists 50 D-Index: 183 scientists 51 D-Index: 178 scientists 52 D-Index: 182 scientists 53 D-Index: 178 scientists 54 D-Index: 163 scientists 55 D-Index: 117 scientists 56 D-Index: 163 scientists 57 D-Index: 120 scientists 58 D-Index: 113 scientists 59 D-Index: 136 scientists 60 D-Index: 135 scientists 61 D-Index: 96 scientists 62 D-Index: 103 scientists 63 D-Index: 83 scientists 64 D-Index: 103 scientists 65 D-Index: 83 scientists 66 D-Index: 89 scientists 67 D-Index: 92 scientists 68 D-Index: 89 scientists 69 D-Index: 78 scientists 70 D-Index: 75 scientists 71 D-Index: 53 scientists 72 D-Index: 62 scientists 73 D-Index: 54 scientists 74 D-Index: 35 scientists 75 D-Index: 52 scientists 76 D-Index: 50 scientists 77 D-Index: 32 scientists 78 D-Index: 37 scientists 79 D-Index: 20 scientists 80 D-Index: 33 scientists 81 D-Index: 36 scientists 82 D-Index: 34 scientists 83 D-Index: 34 scientists 84 D-Index: 24 scientists 85 D-Index: 19 scientists 86 D-Index: 18 scientists 87 D-Index: 26 scientists 88 D-Index: 30 scientists 89 D-Index: 17 scientists 90 D-Index: 21 scientists 91 D-Index: 19 scientists 92 D-Index: 15 scientists 93 D-Index: 14 scientists 94 D-Index: 20 scientists 95 D-Index: 9 scientists 96 D-Index: 10 scientists 97 D-Index: 15 scientists 98 D-Index: 13 scientists 99 D-Index: 3 scientists 100 D-Index: 13 scientists 101 D-Index: 3 scientists 102 D-Index: 9 scientists 103 D-Index: 4 scientists 104 D-Index: 6 scientists 105 D-Index: 6 scientists 106+ D-Index: 98 scientists
30 D-Index 106+

This scientist: 98 D-Index — 98th percentile

98% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 106 D-Index or more.

View D-Index distribution as a table
Number of Earth Science scientists by D-index, Research.com 2026 ranking edition. Based on 9,176 ranked scientists.
D-Index Scientists This scientist
30 144
31 215
32 278
33 379
34 366
35 372
36 389
37 366
38 344
39 349
40 296
41 289
42 277
43 279
44 248
45 257
46 212
47 202
48 207
49 204
50 183
51 178
52 182
53 178
54 163
55 117
56 163
57 120
58 113
59 136
60 135
61 96
62 103
63 83
64 103
65 83
66 89
67 92
68 89
69 78
70 75
71 53
72 62
73 54
74 35
75 52
76 50
77 32
78 37
79 20
80 33
81 36
82 34
83 34
84 24
85 19
86 18
87 26
88 30
89 17
90 21
91 19
92 15
93 14
94 20
95 9
96 10
97 15
98 13 98
99 3
100 13
101 3
102 9
103 4
104 6
105 6
106+ 98
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Research.com Recognitions

  • 2026 - Research.com Earth Science in United States Leader Award
  • 2025 - Research.com Earth Science in United States Leader Award

Overview

What is he best known for?

The fields of study he is best known for:

  • Agriculture
  • Irrigation
  • Statistics

Jirka Šimůnek mainly investigates Soil water, Water flow, Hydrology, Vadose zone and Soil science. His Soil water research is multidisciplinary, relying on both Environmental chemistry and Porosity. His work investigates the relationship between Hydrology and topics such as Mathematical model that intersect with problems in Hydrological modelling, Flow and Statistical physics.

Jirka Šimůnek interconnects Hydraulic conductivity and Soil horizon in the investigation of issues within Vadose zone. As part of his studies on Soil science, Jirka Šimůnek often connects relevant areas like Geotechnical engineering. His Soil salinity research includes elements of Lysimeter, Nutrient and Drip irrigation, Irrigation.

His most cited work include:

  • Review and comparison of models for describing non-equilibrium and preferential flow and transport in the vadose zone (686 citations)
  • Modeling Nonequilibrium Flow and Transport Processes Using HYDRUS (330 citations)
  • A review of model applications for structured soils: a) Water flow and tracer transport. (251 citations)

What are the main themes of his work throughout his whole career to date?

Jirka Šimůnek spends much of his time researching Soil water, Soil science, Hydrology, Water flow and Leaching. His research integrates issues of Environmental chemistry and Water balance in his study of Soil water. The concepts of his Soil science study are interwoven with issues in Infiltration and Geotechnical engineering.

Throughout his Water flow studies, Jirka Šimůnek incorporates elements of other sciences such as Vadose zone, Water content, Richards equation, Surface runoff and Mechanics. Jirka Šimůnek combines subjects such as Fertilizer, Environmental engineering, Irrigation, Drainage and Nitrate with his study of Leaching. His Irrigation research incorporates themes from Salinity and Soil salinity.

He most often published in these fields:

  • Soil water (42.77%)
  • Soil science (30.64%)
  • Hydrology (29.48%)

What were the highlights of his more recent work (between 2018-2021)?

  • Soil water (42.77%)
  • Soil science (30.64%)
  • Leaching (17.34%)

In recent papers he was focusing on the following fields of study:

His primary areas of investigation include Soil water, Soil science, Leaching, Irrigation and Salinity. His Soil water research includes themes of Water balance, Growing season and Water content. His primary area of study in Soil science is in the field of Hydraulic conductivity.

He integrates several fields in his works, including Leaching and Water flow. Many of his research projects under Irrigation are closely connected to Calcareous with Calcareous, tying the diverse disciplines of science together. His DNS root zone study improves the overall literature in Hydrology.

Between 2018 and 2021, his most popular works were:

  • Infiltration from the Pedon to Global Grid Scales: An Overview and Outlook for Land Surface Modeling (19 citations)
  • Management of soil salinity associated with irrigation of protected crops (16 citations)
  • Assessing salinity leaching efficiency in three soils by the HYDRUS-1D and -2D simulations (10 citations)

In his most recent research, the most cited papers focused on:

  • Agriculture
  • Statistics
  • Irrigation

His scientific interests lie mostly in Soil water, Salinity, Irrigation, Soil science and Water content. Jirka Šimůnek works in the field of Soil water, namely Hydraulic conductivity. His Hydraulic conductivity study incorporates themes from Infiltration, Soil horizon, Biosphere model and Soil structure.

His Salinity study integrates concerns from other disciplines, such as Soil health, Sodium adsorption ratio, Leaching and Pasture. He works mostly in the field of Land use, limiting it down to topics relating to Water balance and, in certain cases, Loam, as a part of the same area of interest. Jirka Šimůnek has researched Growing season in several fields, including Hydrology, DNS root zone, Soil compaction and Vegetation.

Best Publications

  • Development and Applications of the HYDRUS and STANMOD Software Packages and Related Codes

    Jirí Šimůnek;Martinus Th. van Genuchten;Miroslav Šejna

  • Review and comparison of models for describing non-equilibrium and preferential flow and transport in the vadose zone

    Jirka Šimůnek;Nick J. Jarvis;M.Th. van Genuchten;Annemieke Gärdenäs

  • Modeling colloid attachment, straining, and exclusion in saturated porous media.

    Scott A. Bradford;Jirka Simunek;Mehdi Bettahar;Martinus Th. Van Genuchten

  • Physical factors affecting the transport and fate of colloids in saturated porous media

    Scott A. Bradford;Scott R. Yates;Mehdi Bettahar;Jirka Simunek

  • Reactive transport codes for subsurface environmental simulation

    C. I. Steefel;C. A. J. Appelo;B. Arora;D. Jacques

  • Modeling Soil Processes: Review, Key Challenges, and New Perspectives

    H. Vereecken;A. Schnepf;J. W. Hopmans;M. Javaux

  • Modeling Nonequilibrium Flow and Transport Processes Using HYDRUS

    Jirka Šimůnek;Martinus Th. van Genuchten

  • Numerical Analysis of Coupled Water, Vapor, and Heat Transport in the Vadose Zone

    Hirotaka Saito;Jiri Šimůnek;Binayak P. Mohanty

  • Modeling compensated root water and nutrient uptake.

    Jiří Šimůnek;Jan W. Hopmans

  • Water flow and heat transport in frozen soil : Numerical solution and freeze-thaw applications

    Klas Hansson;Jirka Simunek;Masaru Mizoguchi;Lars-Christer Lundin

  • Comparison of HYDRUS-2D simulations of drip irrigation with experimental observations

    T. H. Skaggs;T. J. Trout;J. Simunek;P. J. Shouse

  • Calibration of a two-dimensional root water uptake model

    J. A. Vrugt;J. W. Hopmans;J. Šimunek

  • Two-dimensional modeling of nitrate leaching for various fertigation scenarios under micro-irrigation

    A.I. Gärdenäs;J.W. Hopmans;B.R. Hanson;J. Šimůnek

  • One-, two-, and three-dimensional root water uptake functions for transient modeling

    J. A. Vrugt;M. T. van Wijk;J. W. Hopmans;J. Šimunek

  • A review of model applications for structured soils: a) Water flow and tracer transport.

    John Maximilian Köhne;Sigrid Köhne;Jirka Šimůnek

  • Modeling of Carbon Dioxide Transport and Production in Soil 1. Model Development

    Jiří Šimůnek;Donald L. Suarez

  • Significance of straining in colloid deposition: Evidence and implications

    S. A. Bradford;J. Simunek;M. Bettahar;M. T. van Genuchten

  • HYDRUS: Model Use, Calibration, and Validation

    J. Šimunek;M. Th. van Genuchten;M. Šejna

  • Straining and Attachment of Colloids in Physically Heterogeneous Porous Media

    Scott A. Bradford;Mehdi Bettahar;Jirka Simunek;Martinus Th. van Genuchten

  • Evaluation of urea-ammonium-nitrate fertigation with drip irrigation using numerical modeling

    Blaine R. Hanson;Jirka Šimůnek;Jan W. Hopmans

  • Leaching requirement for soil salinity control: Steady-state versus transient models

    Dennis L. Corwin;James D. Rhoades;Jirka Simunek

Frequent Co-Authors

Harry Vereecken
Harry Vereecken Forschungszentrum Jülich
M. Th. van Genuchten
M. Th. van Genuchten Federal University of Rio de Janeiro
Dirk Mallants
Dirk Mallants Commonwealth Scientific and Industrial Research Organisation
Scott A. Bradford
Scott A. Bradford Agricultural Research Service
Erwin Klumpp
Erwin Klumpp Forschungszentrum Jülich
Jan W. Hopmans
Jan W. Hopmans University of California, Davis
Jan Vanderborght
Jan Vanderborght Forschungszentrum Jülich
Rafael Angulo-Jaramillo
Rafael Angulo-Jaramillo University of Lyon System
Lutz Weihermüller
Lutz Weihermüller Forschungszentrum Jülich

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