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Engineering and Technology
Singapore
2022

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Engineering and Technology 69 1110 1048 18 18 465 21586
Earth Science 69 1029 908 4 4 449 21276

Harianto Rahardjo publications per year

The chart shows the history of publications by Harianto Rahardjo between 1983 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Harianto Rahardjo published across 43 years, from 1983 to 2025, averaging 11.8 papers a year. Output peaked at 125 publications in 2000. 16 of the 509 publications appeared in the last two years.

No. of publications
25 50 75 100 125
Bar chart. Horizontal axis: year, 1983 to 2025. Vertical axis: number of publications, 0 to 125. Peak 125 publications in 2000. 1983: 1 publication 1984: 2 publications 1985: 0 publications 1986: 1 publication 1987: 1 publication 1988: 2 publications 1989: 1 publication 1990: 1 publication 1991: 3 publications 1992: 3 publications 1993: 2 publications 1994: 1 publication 1995: 7 publications 1996: 3 publications 1997: 5 publications 1998: 2 publications 1999: 5 publications 2000: 125 publications 2001: 6 publications 2002: 8 publications 2003: 6 publications 2004: 16 publications 2005: 8 publications 2006: 8 publications 2007: 26 publications 2008: 8 publications 2009: 8 publications 2010: 16 publications 2011: 15 publications 2012: 31 publications 2013: 9 publications 2014: 11 publications 2015: 15 publications 2016: 18 publications 2017: 15 publications 2018: 17 publications 2019: 21 publications 2020: 24 publications 2021: 16 publications 2022: 14 publications 2023: 12 publications 2024: 9 publications 2025: 7 publications
1983 2025

509 publications in total across all disciplines

View publications per year as a table
Harianto Rahardjo: publications per year, 1983 to 2025
Year Publications
1983 1
1984 2
1985 0
1986 1
1987 1
1988 2
1989 1
1990 1
1991 3
1992 3
1993 2
1994 1
1995 7
1996 3
1997 5
1998 2
1999 5
2000 125
2001 6
2002 8
2003 6
2004 16
2005 8
2006 8
2007 26
2008 8
2009 8
2010 16
2011 15
2012 31
2013 9
2014 11
2015 15
2016 18
2017 15
2018 17
2019 21
2020 24
2021 16
2022 14
2023 12
2024 9
2025 7
Total 509
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Harianto Rahardjo 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 Harianto Rahardjo 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, 448–457 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: 449 publications — 96th percentile

96% 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
428–437 27
438–447 36
448–457 27 449
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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Harianto Rahardjo 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 Harianto Rahardjo 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, 69 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: 69 D-Index — 89th percentile

89% 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 69
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
99 3
100 13
101 3
102 9
103 4
104 6
105 6
106+ 98
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Research.com Recognitions

  • 2022 - Research.com Engineering and Technology in Singapore Leader Award

Overview

Harianto Rahardjo is affiliated with Nanyang Technological University in Singapore and has contributed extensively to the fields of engineering and environmental science. Their research primarily focuses on civil and structural engineering, environmental engineering, and topics related to safety, risk, and quality management.

The scientist's main areas of study include:

  • Engineering
  • Environmental Science

Within these disciplines, specific subfields are addressed such as:

  • Civil and Structural Engineering
  • Management, Monitoring, Policy and Law
  • Environmental Engineering
  • Safety, Risk, Reliability and Quality
  • Plant Science

Rahardjo's research topics cover:

  • Soil and Unsaturated Flow
  • Landslides and related hazards
  • Groundwater flow and contamination studies
  • Dam Engineering and Safety
  • Geotechnical Engineering and Analysis
  • Soil Moisture and Remote Sensing
  • Tree Root and Stability Studies

The scientist has published in several frequent venues, notably:

  • Engineering Geology
  • Bulletin of Engineering Geology and the Environment
  • Scientific Reports
  • Acta Geotechnica
  • Canadian Geotechnical Journal

Recent papers authored or co-authored by Rahardjo include:

  • Investigation of groundwater table distribution using borehole piezometer data interpolation: Case study of Singapore, 2020, Engineering Geology
  • Estimation of wetting hydraulic conductivity function for unsaturated sandy soil, 2021, Engineering Geology
  • Framework to estimate the soil-water characteristic curve for soils with different void ratios, 2020, Bulletin of Engineering Geology and the Environment
  • Estimation of the soil-water characteristic curve from the grain size distribution of coarse-grained soils, 2020, Engineering Geology
  • Soil database development with the application of machine learning methods in soil properties prediction, 2022, Engineering Geology

Frequent collaborators in Rahardjo's research include:

  • Alfrendo Satyanaga
  • Qian Zhai
  • Guoliang Dai
  • Xueliang Zhao
  • Saranya Rangarajan

Best Publications

  • Review of soil-water characteristic curve equations

    E. C. Leong;H. Rahardjo

  • Determination of the shear strength parameters of an unsaturated soil using the direct shear test

    J. K. M. Gan;D. G. Fredlund;H. Rahardjo

  • PERMEABILITY FUNCTIONS FOR UNSATURATED SOILS

    Eng Choon Leong;Harianto Rahardjo

  • Factors Controlling Instability of Homogeneous Soil Slopes under Rainfall

    Harianto Rahardjo;Harianto Rahardjo;T. H. Ong;T. H. Ong;R. B. Rezaur;R. B. Rezaur;Eng Choon Leong;Eng Choon Leong

  • CONTROLLING PARAMETERS FOR RAINFALL-INDUCED LANDSLIDES

    Illias Tsaparas;Harianto Rahardjo;David G. Toll;Eng Choon Leong

  • SHEAR-STRENGTH CHARACTERISTICS OF A RESIDUAL SOIL

    H. Rahardjo;T.T. Lim;M.F. Chang;D.G. Fredlund

  • Infiltration effects on stability of a residual soil slope

    J. M. Gasmo;Harianto Rahardjo;Eng Choon Leong

  • Effect of rainfall on matric suctions in a residual soil slope

    T T Lim;H Rahardjo;M F Chang;D G Fredlund

  • Response of a residual soil slope to rainfall

    H Rahardjo;T T Lee;E C Leong;R B Rezaur

  • The effect of antecedent rainfall on slope stability

    H. Rahardjo;X. W. Li;D. G. Toll;E. C. Leong

  • Factors affecting the filter paper method for total and matric suction measurements

    Eng Choon Leong;Liangcai He;Harianto Rahardjo

  • Factors affecting drying and wetting soil-water characteristic curves of sandy soils

    Hong Yang;Harianto Rahardjo;Eng Choon Leong;Delwyn G. Fredlund

  • Effect of Antecedent Rainfall Patterns on Rainfall-Induced Slope Failure

    Arezoo Rahimi;Harianto Rahardjo;Eng Choon Leong

  • Total suction measurement of unsaturated soils with a device using the chilled-mirror dew-point technique

    Eng Choon Leong;Sudhiranjan Tripathy;Harianto Rahardjo

  • Characteristics of residual soils in Singapore as formed by weathering

    Harianto Rahardjo;K. K. Aung;Eng Choon Leong;R. B. Rezaur

  • Measuring Shear Wave Velocity Using Bender Elements

    Eng Choon Leong;Sir Hoon Yeo;Harianto Rahardjo

  • Shear Strength Equations for Unsaturated Soil under Drying and Wetting

    Goh Shin Guan;Harianto Rahardjo;Leong Eng Choon

  • Shear Strength of Unsaturated Soils

    D. G. Fredlund;H. Rahardjo;M. D. Fredlund

  • Shear strength of a compacted residual soil from consolidated drained and constant water content triaxial tests

    Harianto Rahardjo;Ong Boo Heng;Leong Eng Choon

  • Effect of hydraulic properties of soil on rainfall-induced slope failure

    Arezoo Rahimi;Harianto Rahardjo;Eng Choon Leong

  • Effects of Groundwater Table Position and Soil Properties on Stability of Slope during Rainfall

    Harianto Rahardjo;Alfrendo Satyanaga Nio;Eng Choon Leong;Ng Yew Song

Frequent Co-Authors

Eng Choon Leong
Eng Choon Leong Nanyang Technological University
Delwyn G. Fredlund
Delwyn G. Fredlund University of Saskatchewan
Mohamed Hasnain Isa
Mohamed Hasnain Isa University of Technology Brunei
Swee Chuan Tjin
Swee Chuan Tjin Nanyang Technological University
Junichi Koseki
Junichi Koseki University of Tokyo
Teik-Thye Lim
Teik-Thye Lim Nanyang Technological University
Charles Wang Wai Ng
Charles Wang Wai Ng Hong Kong University of Science and Technology
Chi Chiu Chan
Chi Chiu Chan Shenzhen University
Yan-Jun Du
Yan-Jun Du Southeast University
Sukant K. Tripathy
Sukant K. Tripathy University of Massachusetts Lowell

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