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D-Index & Metrics

Discipline name D-Index World Ranking National Ranking Publications Citations
Earth Science 43 4959 1869 82 7080

Terrence M. Gerlach publications per year

The chart shows the history of publications by Terrence M. Gerlach between 1973 and 2009, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Terrence M. Gerlach published across 37 years, from 1973 to 2009, averaging 2.3 papers a year. Output peaked at 5 publications in 1980. 6 of the 84 publications appeared in the last two years.

No. of publications
1 2 3 4 5
Bar chart. Horizontal axis: year, 1973 to 2009. Vertical axis: number of publications, 0 to 5. Peak 5 publications in 1980. 1973: 1 publication 1974: 0 publications 1975: 3 publications 1976: 0 publications 1977: 1 publication 1978: 2 publications 1979: 2 publications 1980: 5 publications 1981: 2 publications 1982: 4 publications 1983: 2 publications 1984: 0 publications 1985: 1 publication 1986: 4 publications 1987: 0 publications 1988: 0 publications 1989: 3 publications 1990: 3 publications 1991: 3 publications 1992: 2 publications 1993: 1 publication 1994: 4 publications 1995: 1 publication 1996: 1 publication 1997: 2 publications 1998: 4 publications 1999: 2 publications 2000: 2 publications 2001: 5 publications 2002: 3 publications 2003: 2 publications 2004: 3 publications 2005: 5 publications 2006: 4 publications 2007: 1 publication 2008: 3 publications 2009: 3 publications
1973 2009

84 publications in total across all disciplines

View publications per year as a table
Terrence M. Gerlach: publications per year, 1973 to 2009
Year Publications
1973 1
1974 0
1975 3
1976 0
1977 1
1978 2
1979 2
1980 5
1981 2
1982 4
1983 2
1984 0
1985 1
1986 4
1987 0
1988 0
1989 3
1990 3
1991 3
1992 2
1993 1
1994 4
1995 1
1996 1
1997 2
1998 4
1999 2
2000 2
2001 5
2002 3
2003 2
2004 3
2005 5
2006 4
2007 1
2008 3
2009 3
Total 84
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Terrence M. Gerlach 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 Terrence M. Gerlach 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, 78–87 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: 82 publications — 5th percentile

5% 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 82
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
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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Terrence M. Gerlach 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 Terrence M. Gerlach 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, 43 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: 43 D-Index — 47th percentile

47% 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 43
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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Overview

Terrence M. Gerlach is affiliated with the United States Geological Survey in the United States. Their work is situated within this prominent government research agency, which specializes in the study of natural resources, natural hazards, and the landscape of the United States.

As a researcher, Gerlach's profile currently does not list specific research papers, frequent co-authors, or particular publication venues. There is no available information on book publications or named awards attributed to them.

Similarly, detailed data on their main fields of study, subfields, and primary research topics are not documented in available sources. This absence of detailed bibliographic and topical records indicates either a limited public disclosure of their research portfolio or a focus on work that has not been widely published in typical academic channels.

Despite the lack of published papers and topic-specific data, Terrence M. Gerlach's affiliation with the United States Geological Survey suggests involvement in scientific activities related to earth sciences, geology, hydrology, or related environmental and geospatial disciplines. The USGS context typically involves research, data collection, and analysis in these areas.

Without further detailed bibliometric or publication metadata, it is not possible to enumerate specific scientific contributions or thematic specializations associated with this scientist.

Best Publications

  • Volcanic-gas studies: Methods, results, and applications

    Robert B. Symonds;William I. Rose;Gregg J. S. Bluth;Terrence M. Gerlach

  • Magmatic gas scrubbing: implications for volcano monitoring

    R.B. Symonds;T.M. Gerlach;M.H. Reed

  • Volatile budget of Kilauea volcano

    Terrence M. Gerlach;Edward J. Graeber

  • Exsolution of H2O, CO2, and S during eruptive episodes at Kilauea Volcano, Hawaii

    Terrence M. Gerlach

  • Metal emissions from Kilauea, and a suggested revision of the estimated worldwide metal output by quiescent degassing of volcanoes

    Todd K Hinkley;Paul J Lamothe;Stephen A Wilson;David L Finnegan

  • Dynamics of seismogenic volcanic extrusion at Mount St Helens in 2004–05

    Richard M. Iverson;Daniel Dzurisin;Cynthia A. Gardner;Terrence M. Gerlach

  • Magmatic vapor source for sulfur dioxide released during volcanic eruptions: evidence from mount pinatubo.

    Paul J. Wallace;Terrence M. Gerlach

  • Carbon dioxide emission rate of Kīlauea Volcano: Implications for primary magma and the summit reservoir

    T. M. Gerlach;K. A. McGee;T. Elias;A. J. Sutton

  • Magmatic gas source for the stratospheric SO2 cloud from the June 15,1991, eruption of Mount Pinatubo

    H. R. Westrich;T.M. Gerlach

  • Carbon isotope constraints on degassing of carbon dioxide from Kilauea Volcano

    Terrence M. Gerlach;Bruce E. Taylor

  • Evaluation of gases, condensates, and SO2 emissions from Augustine volcano, Alaska: the degassing of a Cl-rich volcanic system

    Robert B Symonds;William I Rose;Terrence M Gerlach;Paul H Briggs

  • Gas emissions and the eruptions of mount st. Helens through 1982.

    T. Casadevall;William I. Rose;Terrence M. Gerlach;L. P. Greenland

  • Present-day CO2 emissions from volcanos

    Terrence M. Gerlach

  • Soil efflux and total emission rates of magmatic CO2 at the Horseshoe Lake tree kill, Mammoth Mountain, California, 1995–1999

    T.M Gerlach;M.P Doukas;K.A McGee;R Kessler

  • Evaluation of volcanic gas analyses from Kilauea volcano

    T.M. Gerlach

  • Vapor saturation and accumulation in magmas of the 1989–1990 eruption of Redoubt Volcano, Alaska

    Terrence M. Gerlach;Henry R. Westrich;Thomas J. Casadevall;David L. Finnegan

  • Implications for eruptive processes as indicated by sulfur dioxide emissions from Kı̄lauea Volcano, Hawai‘i, 1979–1997

    A.J Sutton;T Elias;T.M Gerlach;J.B Stokes

  • Atmospheric chemistry of a 33–34 hour old volcanic cloud from Hekla Volcano (Iceland): Insights from direct sampling and the application of chemical box modeling

    William I. Rose;Genevieve A. Millard;Tamsin A. Mather;Tamsin A. Mather;Donald E. Hunton

  • Application of the LI-COR CO2 analyzer to volcanic plumes: A case study, volcán Popocatépetl, Mexico, June 7 and 10, 1995

    T. M. Gerlach;H. Delgado;K. A. McGee;M. P. Doukas

  • Total sulfur dioxide emissions and pre‐eruption vapor‐saturated magma at Mount St. Helens, 1980–88

    T. M. Gerlach;K. A. McGee

Frequent Co-Authors

Tamar Elias
Tamar Elias United States Geological Survey
William I. Rose
William I. Rose Michigan Technological University
Marie Edmonds
Marie Edmonds University of Cambridge
Tamsin A. Mather
Tamsin A. Mather University of Oxford
Paul J. Wallace
Paul J. Wallace University of Oregon
Mark H. Reed
Mark H. Reed University of Oregon
Richard M. Iverson
Richard M. Iverson United States Geological Survey
Clive Oppenheimer
Clive Oppenheimer University of Cambridge
Bruce E. Anderson
Bruce E. Anderson Langley Research Center
Yutaka Kondo
Yutaka Kondo National Institute of Polar Research

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