| Discipline name | D-Index | World Ranking | Current World Ranking | National Ranking | Current National Ranking | Publications | Citations |
|---|---|---|---|---|---|---|---|
| Earth Science | 35 | 7723 | 7154 | 2615 | 2312 | 141 | 3954 |
The chart shows the history of publications by Paul G. D. Spry between 1976 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Paul G. D. Spry published across 50 years, from 1976 to 2025, averaging 4.7 papers a year. Output peaked at 13 publications in 2007. 7 of the 237 publications appeared in the last two years.
237 publications in total across all disciplines
| Year | Publications |
|---|---|
| 1976 | 1 |
| 1977 | 0 |
| 1978 | 0 |
| 1979 | 0 |
| 1980 | 0 |
| 1981 | 0 |
| 1982 | 0 |
| 1983 | 1 |
| 1984 | 0 |
| 1985 | 1 |
| 1986 | 2 |
| 1987 | 5 |
| 1988 | 3 |
| 1989 | 3 |
| 1990 | 2 |
| 1991 | 0 |
| 1992 | 0 |
| 1993 | 2 |
| 1994 | 7 |
| 1995 | 4 |
| 1996 | 6 |
| 1997 | 4 |
| 1998 | 8 |
| 1999 | 1 |
| 2000 | 9 |
| 2001 | 4 |
| 2002 | 8 |
| 2003 | 12 |
| 2004 | 9 |
| 2005 | 7 |
| 2006 | 7 |
| 2007 | 13 |
| 2008 | 6 |
| 2009 | 10 |
| 2010 | 5 |
| 2011 | 7 |
| 2012 | 2 |
| 2013 | 10 |
| 2014 | 6 |
| 2015 | 12 |
| 2016 | 4 |
| 2017 | 4 |
| 2018 | 9 |
| 2019 | 12 |
| 2020 | 6 |
| 2021 | 10 |
| 2022 | 5 |
| 2023 | 3 |
| 2024 | 3 |
| 2025 | 4 |
| Total | 237 |
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 Paul G. D. Spry sits on this spectrum.
This scientist: 141 publications — 34th percentile
34% of scientists in this discipline score the same or lower.
The last bar groups every scientist with 603 publications or more.
| 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 | 141 |
| 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 |
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 Paul G. D. Spry sits on this spectrum.
This scientist: 35 D-Index — 19th percentile
19% of scientists in this discipline score the same or lower.
The last bar groups every scientist with 106 D-Index or more.
| D-Index | Scientists | This scientist |
|---|---|---|
| 30 | 144 | |
| 31 | 215 | |
| 32 | 278 | |
| 33 | 379 | |
| 34 | 366 | |
| 35 | 372 | 35 |
| 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 |
Pascal V. Grundler;Joël Brugger;Barbara E. Etschmann;Lothar Helm
J. T. Chesley;A. N. Halliday;T. K. Kyser;P. G. Spry
Nigel J. Cook;Cristiana L. Ciobanu;Paul G. Spry;Panagiotis Voudouris
David W. Pals;Paul G. Spry;Stephen Chryssoulis
Paul G. Spry;Jan M. Peter;John F. Slack
Cristiana Ciobanu;N. J. Cook;P. G. Spry
Unknown
Panagiotis C. Voudouris;Vasilios Melfos;Paul G. Spry;Luca Bindi
Unknown
Paul G. Spry;Steven D. Scott
Unknown
Unknown
N. J. Cook;P. G. Spry;F. M. Vokes
Unknown
Panagiotis Voudouris;Vasilios Melfos;Paul G. Spry;Luca Bindi
P. Voudouris;V. Melfos;P. G. Spry;T. Bonsall
Unknown
Unknown
P. Voudouris;C. Mavrogonatos;P.G. Spry;T. Baker
Panagiotis Christos Voudouris;Vasilios Melfos;Paul G. Spry;Robert Moritz
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