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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Earth Science 33 8376 7772 395 378 129 4063

Robert G. Jeffrey publications per year

The chart shows the history of publications by Robert G. Jeffrey between 1965 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Robert G. Jeffrey published across 61 years, from 1965 to 2025, averaging 2.2 papers a year. Output peaked at 9 publications in 2005. 5 of the 137 publications appeared in the last two years.

No. of publications
2 4 6 8
Bar chart. Horizontal axis: year, 1965 to 2025. Vertical axis: number of publications, 0 to 9. Peak 9 publications in 2005. 1965: 1 publication 1966: 1 publication 1967: 0 publications 1968: 0 publications 1969: 0 publications 1970: 0 publications 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: 1 publication 1982: 0 publications 1983: 0 publications 1984: 0 publications 1985: 1 publication 1986: 1 publication 1987: 3 publications 1988: 2 publications 1989: 2 publications 1990: 1 publication 1991: 1 publication 1992: 1 publication 1993: 0 publications 1994: 1 publication 1995: 1 publication 1996: 3 publications 1997: 2 publications 1998: 3 publications 1999: 1 publication 2000: 5 publications 2001: 1 publication 2002: 0 publications 2003: 0 publications 2004: 4 publications 2005: 9 publications 2006: 6 publications 2007: 5 publications 2008: 7 publications 2009: 6 publications 2010: 6 publications 2011: 4 publications 2012: 3 publications 2013: 3 publications 2014: 5 publications 2015: 8 publications 2016: 7 publications 2017: 9 publications 2018: 4 publications 2019: 3 publications 2020: 2 publications 2021: 2 publications 2022: 4 publications 2023: 3 publications 2024: 3 publications 2025: 2 publications
1965 2025

137 publications in total across all disciplines

View publications per year as a table
Robert G. Jeffrey: publications per year, 1965 to 2025
Year Publications
1965 1
1966 1
1967 0
1968 0
1969 0
1970 0
1971 0
1972 0
1973 0
1974 0
1975 0
1976 0
1977 0
1978 0
1979 0
1980 0
1981 1
1982 0
1983 0
1984 0
1985 1
1986 1
1987 3
1988 2
1989 2
1990 1
1991 1
1992 1
1993 0
1994 1
1995 1
1996 3
1997 2
1998 3
1999 1
2000 5
2001 1
2002 0
2003 0
2004 4
2005 9
2006 6
2007 5
2008 7
2009 6
2010 6
2011 4
2012 3
2013 3
2014 5
2015 8
2016 7
2017 9
2018 4
2019 3
2020 2
2021 2
2022 4
2023 3
2024 3
2025 2
Total 137
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Robert G. Jeffrey publications per year - data summary

  • Robert G. Jeffrey, a Earth Science scholar from University of Wollongong, has 137 publications recorded across 61 years, from 1965 to 2025.
  • The oldest publication on record dates to 1965 and the most recent to 2025.
  • The most productive years are 2005 and 2017, with 9 publications each.
  • The least productive years with any output are 1965, 1966, 1981, 1985 and others, with 1 publication each.
  • 20 of the 61 years in the span carry no publications at all (1967, 1968, 1969, 1970 and others).
  • The rate of publication averages 2.2 papers per year over the whole span, or 3.3 per year counting only the 41 years with at least one publication.
  • The last 5 years on the chart (2021-2025) hold 14 publications, 10% of the career total.
  • Split into equal eras - 1965-1985: 4 publications (0.2 per year); 1986-2006: 47 publications (2.2 per year); 2007-2025: 86 publications (4.5 per year).
  • Comparing the opening and closing eras, the overall trend of publication is rising.

Robert G. Jeffrey 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 Robert G. Jeffrey 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, 128–137 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: 129 publications — 27th percentile

27% 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
128–137 557 129
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
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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Robert G. Jeffrey publication distribution in Earth Science in 2026 - data summary

  • The chart plots the publication count of all 9,176 Earth Science scientists ranked by Research.com in 2026, grouped into 58 ranges running from 38–47 to 603+ publications.
  • Robert G. Jeffrey, a Earth Science scholar from University of Wollongong, records 129 publications - the 27th percentile of the discipline.
  • 27% of ranked Earth Science scientists score the same or lower than Robert G. Jeffrey, and about 73% score higher.
  • The median of the discipline falls in the 168–177 publications range, and Robert G. Jeffrey ranks below the median.
  • The most crowded range is 128–137 publications, holding 557 scientists (6% of the field).
  • 58% of the field sits in the lowest quarter of the value range (up to 178–187 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 603 publications or more, 100 scientists in all (1% of the field).

Robert G. Jeffrey 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 Robert G. Jeffrey 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, 33 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: 33 D-Index — 11th percentile

11% 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 33
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
99 3
100 13
101 3
102 9
103 4
104 6
105 6
106+ 98
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Robert G. Jeffrey D-index placement in Earth Science in 2026 - data summary

  • The chart plots the discipline H-index (D-index) of all 9,176 Earth Science scientists ranked by Research.com in 2026, grouped into 77 ranges running from 30 to 106+ D-Index.
  • Robert G. Jeffrey, a Earth Science scholar from University of Wollongong, records 33 D-Index - the 11th percentile of the discipline.
  • 11% of ranked Earth Science scientists score the same or lower than Robert G. Jeffrey, and about 89% score higher.
  • The median of the discipline falls in the 44 D-Index range, and Robert G. Jeffrey ranks below the median.
  • The most crowded range is 36 D-Index, holding 389 scientists (4% of the field).
  • 62% of the field sits in the lowest quarter of the value range (up to 49 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 106 D-Index or more, 98 scientists in all (1% of the field).

Overview

Robert G. Jeffrey is affiliated with the University of Wollongong in Australia. Their research encompasses a range of topics within engineering and earth sciences, focusing primarily on hydraulic fracturing, reservoir analysis, and related fields.

Their published work spans multiple subfields of study, including:

  • Mechanical Engineering
  • Ocean Engineering
  • Geophysics
  • Mechanics of Materials
  • Civil and Structural Engineering

Jeffrey's main fields of study are:

  • Engineering
  • Earth and Planetary Sciences

The primary research topics addressed in their work are:

  • Hydraulic Fracturing and Reservoir Analysis
  • Drilling and Well Engineering
  • Seismic Imaging and Inversion Techniques
  • Rock Mechanics and Modeling
  • Groundwater flow and contamination studies
  • Landslides and related hazards
  • Climate change and permafrost

Recent papers authored or co-authored by Robert G. Jeffrey include:

  • "Surrogate modeling and global sensitivity analysis for the simultaneous growth of multiple hydraulic fractures," 2023, Computers and Geotechnics
  • "Energy Budget and Fast Rupture on a Near-Excavation Fault: Implications for Mitigating Induced Seismicity," 2020, Journal of Geophysical Research Solid Earth
  • "An efficient model for predicting heat extraction from a multiple-well enhanced geothermal system in the presence of areal flow," 2022, Applied Thermal Engineering
  • "Numerical Study on Proppant Transport in Hydraulic Fractures Using a Pseudo-3D Model for Multilayered Reservoirs," 2021, SPE Journal
  • "An inversion for asymmetric hydraulic fracture growth and fracture opening distribution from tilt measurements," 2023, International Journal of Rock Mechanics and Mining Sciences

Jeffrey has published repeatedly in several venues, with frequent contributions to:

  • Journal of Geophysical Research Solid Earth
  • SPE Journal
  • Computers and Geotechnics
  • Applied Thermal Engineering
  • International Journal of Rock Mechanics and Mining Sciences

Their collaborations involve frequent co-authorship with several researchers, including:

  • Xi Zhang
  • Bisheng Wu
  • Diansen Yang
  • Shaoyi Cheng
  • Herbert E. Huppert

Best Publications

  • Deflection and propagation of fluid-driven fractures at frictional bedding interfaces: A numerical investigation

    Xi Zhang;Robert G. Jeffrey;Marc Thiercelin

  • COHESIVE ZONE FINITE ELEMENT-BASED MODELING OF HYDRAULIC FRACTURES

    Zuorong Chen;A.P. Bunger;Xi Zhang;Robert G. Jeffrey

  • Parameters Affecting the Interaction Among Closely Spaced Hydraulic Fractures

    Andrew P. Bunger;Xi Zhang;Robert G. Jeffrey

  • Finite-Element Simulation of a Hydraulic Fracture Interacting With a Natural Fracture

    Zuorong Chen;Robert G. Jeffrey;Xi Zhang;James Kear

  • The role of friction and secondary flaws on deflection and re‐initiation of hydraulic fractures at orthogonal pre‐existing fractures

    Xi Zhang;Robert G. Jeffrey

  • Initiation and growth of a hydraulic fracture from a circular wellbore

    X. Zhang;R.G. Jeffrey;A.P. Bunger;M. Thiercelin

  • Measuring Hydraulic Fracture Growth in Naturally Fractured Rock

    Robert G. Jeffrey;Andrew Bunger;Brice LeCampion;Xi Zhang

  • Mechanics of fluid-driven fracture growth in naturally fractured reservoirs with simple network geometries

    Xi Zhang;Robert G. Jeffrey;Marc Thiercelin

  • Effective and Sustainable Hydraulic Fracturing

    Andrew P. Bunger;John McLennan;Rob Jeffrey

  • Reinitiation or termination of fluid‐driven fractures at frictional bedding interfaces

    Xi Zhang;Robert G. Jeffrey

  • Experiments versus theory for the initiation and propagation of radial hydraulic fractures in low permeability materials

    Brice Lecampion;Jean Desroches;Robert G. Jeffrey;Andrew P. Bunger

  • Hydraulic Fracture Offsetting in Naturally Fractures Reservoirs: Quantifying a Long-Recognized Process

    Robert G. Jeffrey;Xi Zhang;Marc J. Thiercelin

  • A Detailed Comparison of Experimental and Numerical Data on Hydraulic Fracture Height Growth Through Stress Contrasts

    Robert G. Jeffrey;Andrew Bunger

  • Hydraulic Fracturing Applied to Inducing Longwall Coal Mine Goaf Falls

    R.G. Jeffrey;K.W. Mills

  • Constraints on Simultaneous Growth of Hydraulic Fractures from Multiple Perforation Clusters in Horizontal Wells

    Andrew Bunger;Robert G. Jeffrey;Xi Zhang

  • Hydraulic fracturing of ore bodies

    Robert Graham Jeffrey

  • Experimental Investigation of the Interaction Among Closely Spaced Hydraulic Fractures

    A.P. Bunger;R.G. Jeffrey;J. Kear;X. Zhang

  • Finite Element Simulation of a Hydraulic Fracture Interacting with a Natural Fracture

    Zuorong Chen;Robert G. Jeffrey;Xi Zhang;James Kear

  • Parameters Effecting the Interaction among Closely Spaced Hydraulic Fractures

    Andrew Bunger;Xi Zhang;Robert G. Jeffrey

  • Caving Induced by Hydraulic Fracturing at Northparkes Mines

    A. van As;R.G. Jeffrey

  • Enhanced Recovery of Coalbed Methane Through Hydraulic Fracturing

    S.A. Holditch;J.W. Ely;M.E. Semmelbeck;R.H Carter

  • An Analysis of Hydraulic Fracture and Mineback Data for a Treatment in the German Creek Coal Seam

    R.G. Jeffrey;R.P. Brynes;P.J. Lynch;D.J. Ling

  • A simplified model for heat extraction by circulating fluid through a closed-loop multiple-fracture enhanced geothermal system

    Bisheng Wu;Xi Zhang;Robert G. Jeffrey;Andrew P. Bunger

  • A Comparison of Hydraulic Fracture Field Experiments, Including Mineback Geometry Data, with Numerical Fracture Model Simulations

    R.G. Jeffrey;A. Settari

  • HYDRAULIC FRACTURING OF NATURALLY FRACTURED RESERVOIRS

    R. G. Jeffrey;X. Zhang

  • Propagation of a hydraulic fracture parallel to a free surface

    X. Zhang;R. G. Jeffrey;Emmanuel M Detournay;Emmanuel M Detournay

Frequent Co-Authors

Andrew P. Bunger
Andrew P. Bunger University of Pittsburgh
Emmanuel M Detournay
Emmanuel M Detournay University of Minnesota
Klaus Regenauer-Lieb
Klaus Regenauer-Lieb University of New South Wales
Richard R. Hillis
Richard R. Hillis University of Adelaide
Luke D. Connell
Luke D. Connell Commonwealth Scientific and Industrial Research Organisation
David A. Yuen
David A. Yuen Columbia University
Fengshou Zhang
Fengshou Zhang Tongji University
Yiu-Wing Mai
Yiu-Wing Mai Hong Kong Polytechnic University
Simon C. Apte
Simon C. Apte Commonwealth Scientific and Industrial Research Organisation
Dirk Mallants
Dirk Mallants Commonwealth Scientific and Industrial Research Organisation

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