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Environmental Sciences
New Zealand
2026

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Environmental Sciences 62 2686 2564 11 10 118 9050

J. D. Bradshaw publications per year

The chart shows the history of publications by J. D. Bradshaw between 1971 and 2023, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. J. D. Bradshaw published across 53 years, from 1971 to 2023, averaging 3.2 papers a year. Output peaked at 24 publications in 1996. 1 of the 170 publications appeared in the last two years.

No. of publications
5 10 15 20
Bar chart. Horizontal axis: year, 1971 to 2023. Vertical axis: number of publications, 0 to 24. Peak 24 publications in 1996. 1971: 1 publication 1972: 0 publications 1973: 0 publications 1974: 0 publications 1975: 0 publications 1976: 1 publication 1977: 1 publication 1978: 1 publication 1979: 9 publications 1980: 10 publications 1981: 4 publications 1982: 4 publications 1983: 1 publication 1984: 3 publications 1985: 3 publications 1986: 1 publication 1987: 7 publications 1988: 1 publication 1989: 1 publication 1990: 11 publications 1991: 2 publications 1992: 6 publications 1993: 9 publications 1994: 23 publications 1995: 7 publications 1996: 24 publications 1997: 11 publications 1998: 3 publications 1999: 7 publications 2000: 5 publications 2001: 7 publications 2002: 0 publications 2003: 1 publication 2004: 0 publications 2005: 0 publications 2006: 1 publication 2007: 1 publication 2008: 2 publications 2009: 0 publications 2010: 1 publication 2011: 0 publications 2012: 0 publications 2013: 0 publications 2014: 0 publications 2015: 0 publications 2016: 0 publications 2017: 0 publications 2018: 0 publications 2019: 0 publications 2020: 0 publications 2021: 0 publications 2022: 0 publications 2023: 1 publication
1971 2023

170 publications in total across all disciplines

View publications per year as a table
J. D. Bradshaw: publications per year, 1971 to 2023
Year Publications
1971 1
1972 0
1973 0
1974 0
1975 0
1976 1
1977 1
1978 1
1979 9
1980 10
1981 4
1982 4
1983 1
1984 3
1985 3
1986 1
1987 7
1988 1
1989 1
1990 11
1991 2
1992 6
1993 9
1994 23
1995 7
1996 24
1997 11
1998 3
1999 7
2000 5
2001 7
2002 0
2003 1
2004 0
2005 0
2006 1
2007 1
2008 2
2009 0
2010 1
2011 0
2012 0
2013 0
2014 0
2015 0
2016 0
2017 0
2018 0
2019 0
2020 0
2021 0
2022 0
2023 1
Total 170
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J. D. Bradshaw publication distribution in Environmental Sciences in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Environmental Sciences in 2026. The highlighted bar marks where J. D. Bradshaw sits on this spectrum.

No. of scientists
200 400 600
Bar chart with 66 bars. Horizontal axis: publications, 41–50 to 690+. Vertical axis: number of scientists, 0 to 617. Most scientists, 617, have 121–130 publications. The last bar groups every scientist with 690 publications or more. The highlighted bar, 111–120 publications, is where this scientist sits. 41–50 publications: 21 scientists 51–60 publications: 62 scientists 61–70 publications: 133 scientists 71–80 publications: 257 scientists 81–90 publications: 361 scientists 91–100 publications: 440 scientists 101–110 publications: 492 scientists 111–120 publications: 541 scientists 121–130 publications: 617 scientists 131–140 publications: 544 scientists 141–150 publications: 541 scientists 151–160 publications: 539 scientists 161–170 publications: 444 scientists 171–180 publications: 444 scientists 181–190 publications: 400 scientists 191–200 publications: 377 scientists 201–210 publications: 318 scientists 211–220 publications: 282 scientists 221–230 publications: 263 scientists 231–240 publications: 220 scientists 241–250 publications: 217 scientists 251–260 publications: 180 scientists 261–270 publications: 181 scientists 271–280 publications: 155 scientists 281–290 publications: 130 scientists 291–300 publications: 127 scientists 301–310 publications: 130 scientists 311–320 publications: 85 scientists 321–330 publications: 106 scientists 331–340 publications: 80 scientists 341–350 publications: 83 scientists 351–360 publications: 75 scientists 361–370 publications: 69 scientists 371–380 publications: 52 scientists 381–390 publications: 54 scientists 391–400 publications: 56 scientists 401–410 publications: 44 scientists 411–420 publications: 40 scientists 421–430 publications: 36 scientists 431–440 publications: 25 scientists 441–450 publications: 25 scientists 451–460 publications: 32 scientists 461–470 publications: 29 scientists 471–480 publications: 21 scientists 481–490 publications: 26 scientists 491–500 publications: 26 scientists 501–510 publications: 17 scientists 511–520 publications: 19 scientists 521–530 publications: 15 scientists 531–540 publications: 22 scientists 541–550 publications: 12 scientists 551–560 publications: 15 scientists 561–570 publications: 11 scientists 571–580 publications: 19 scientists 581–590 publications: 9 scientists 591–600 publications: 9 scientists 601–610 publications: 7 scientists 611–620 publications: 11 scientists 621–630 publications: 5 scientists 631–640 publications: 5 scientists 641–650 publications: 6 scientists 651–660 publications: 3 scientists 661–670 publications: 3 scientists 671–680 publications: 4 scientists 681–689 publications: 4 scientists 690+ publications: 100 scientists
41–50 publications 690+

This scientist: 118 publications — 23rd percentile

23% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 690 publications or more.

View publications distribution as a table
Number of Environmental Sciences scientists by publication count, Research.com 2026 ranking edition. Based on 9,676 ranked scientists.
Publications Scientists This scientist
41–50 21
51–60 62
61–70 133
71–80 257
81–90 361
91–100 440
101–110 492
111–120 541 118
121–130 617
131–140 544
141–150 541
151–160 539
161–170 444
171–180 444
181–190 400
191–200 377
201–210 318
211–220 282
221–230 263
231–240 220
241–250 217
251–260 180
261–270 181
271–280 155
281–290 130
291–300 127
301–310 130
311–320 85
321–330 106
331–340 80
341–350 83
351–360 75
361–370 69
371–380 52
381–390 54
391–400 56
401–410 44
411–420 40
421–430 36
431–440 25
441–450 25
451–460 32
461–470 29
471–480 21
481–490 26
491–500 26
501–510 17
511–520 19
521–530 15
531–540 22
541–550 12
551–560 15
561–570 11
571–580 19
581–590 9
591–600 9
601–610 7
611–620 11
621–630 5
631–640 5
641–650 6
651–660 3
661–670 3
671–680 4
681–689 4
690+ 100
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J. D. Bradshaw D-index placement in Environmental Sciences in 2026

The chart shows the D-index (discipline H-index) distribution of Environmental Sciences scientists ranked by Research.com in 2026. The highlighted bar marks where J. D. Bradshaw sits on this spectrum.

No. of scientists
100 200 300
Bar chart with 97 bars. Horizontal axis: D-Index, 30 to 126+. Vertical axis: number of scientists, 0 to 348. Most scientists, 348, have 45 D-Index. The last bar groups every scientist with 126 D-Index or more. The highlighted bar, 62 D-Index, is where this scientist sits. 30 D-Index: 12 scientists 31 D-Index: 26 scientists 32 D-Index: 51 scientists 33 D-Index: 88 scientists 34 D-Index: 123 scientists 35 D-Index: 163 scientists 36 D-Index: 206 scientists 37 D-Index: 267 scientists 38 D-Index: 265 scientists 39 D-Index: 275 scientists 40 D-Index: 321 scientists 41 D-Index: 343 scientists 42 D-Index: 305 scientists 43 D-Index: 336 scientists 44 D-Index: 330 scientists 45 D-Index: 348 scientists 46 D-Index: 291 scientists 47 D-Index: 275 scientists 48 D-Index: 272 scientists 49 D-Index: 273 scientists 50 D-Index: 263 scientists 51 D-Index: 232 scientists 52 D-Index: 266 scientists 53 D-Index: 217 scientists 54 D-Index: 198 scientists 55 D-Index: 177 scientists 56 D-Index: 202 scientists 57 D-Index: 204 scientists 58 D-Index: 166 scientists 59 D-Index: 177 scientists 60 D-Index: 166 scientists 61 D-Index: 152 scientists 62 D-Index: 143 scientists 63 D-Index: 150 scientists 64 D-Index: 124 scientists 65 D-Index: 119 scientists 66 D-Index: 120 scientists 67 D-Index: 118 scientists 68 D-Index: 82 scientists 69 D-Index: 98 scientists 70 D-Index: 94 scientists 71 D-Index: 105 scientists 72 D-Index: 74 scientists 73 D-Index: 84 scientists 74 D-Index: 70 scientists 75 D-Index: 67 scientists 76 D-Index: 78 scientists 77 D-Index: 60 scientists 78 D-Index: 59 scientists 79 D-Index: 52 scientists 80 D-Index: 47 scientists 81 D-Index: 38 scientists 82 D-Index: 48 scientists 83 D-Index: 42 scientists 84 D-Index: 42 scientists 85 D-Index: 43 scientists 86 D-Index: 29 scientists 87 D-Index: 37 scientists 88 D-Index: 29 scientists 89 D-Index: 30 scientists 90 D-Index: 34 scientists 91 D-Index: 20 scientists 92 D-Index: 22 scientists 93 D-Index: 17 scientists 94 D-Index: 19 scientists 95 D-Index: 24 scientists 96 D-Index: 21 scientists 97 D-Index: 20 scientists 98 D-Index: 24 scientists 99 D-Index: 17 scientists 100 D-Index: 17 scientists 101 D-Index: 21 scientists 102 D-Index: 25 scientists 103 D-Index: 18 scientists 104 D-Index: 26 scientists 105 D-Index: 20 scientists 106 D-Index: 15 scientists 107 D-Index: 10 scientists 108 D-Index: 13 scientists 109 D-Index: 15 scientists 110 D-Index: 12 scientists 111 D-Index: 8 scientists 112 D-Index: 7 scientists 113 D-Index: 9 scientists 114 D-Index: 6 scientists 115 D-Index: 12 scientists 116 D-Index: 7 scientists 117 D-Index: 8 scientists 118 D-Index: 3 scientists 119 D-Index: 5 scientists 120 D-Index: 7 scientists 121 D-Index: 2 scientists 122 D-Index: 4 scientists 123 D-Index: 8 scientists 124 D-Index: 7 scientists 125 D-Index: 9 scientists 126+ D-Index: 92 scientists
30 D-Index 126+

This scientist: 62 D-Index — 74th percentile

74% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 126 D-Index or more.

View D-Index distribution as a table
Number of Environmental Sciences scientists by D-index, Research.com 2026 ranking edition. Based on 9,676 ranked scientists.
D-Index Scientists This scientist
30 12
31 26
32 51
33 88
34 123
35 163
36 206
37 267
38 265
39 275
40 321
41 343
42 305
43 336
44 330
45 348
46 291
47 275
48 272
49 273
50 263
51 232
52 266
53 217
54 198
55 177
56 202
57 204
58 166
59 177
60 166
61 152
62 143 62
63 150
64 124
65 119
66 120
67 118
68 82
69 98
70 94
71 105
72 74
73 84
74 70
75 67
76 78
77 60
78 59
79 52
80 47
81 38
82 48
83 42
84 42
85 43
86 29
87 37
88 29
89 30
90 34
91 20
92 22
93 17
94 19
95 24
96 21
97 20
98 24
99 17
100 17
101 21
102 25
103 18
104 26
105 20
106 15
107 10
108 13
109 15
110 12
111 8
112 7
113 9
114 6
115 12
116 7
117 8
118 3
119 5
120 7
121 2
122 4
123 8
124 7
125 9
126+ 92
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Research.com Recognitions

  • 2026 - Research.com Environmental Sciences in New Zealand Leader Award
  • 2025 - Research.com Environmental Sciences in New Zealand Leader Award
  • 2023 - Research.com Environmental Sciences in New Zealand Leader Award
  • 2022 - Research.com Environmental Sciences in New Zealand Leader Award

Overview

J. D. Bradshaw is affiliated with the University of Canterbury in New Zealand and conducts research primarily in the field of Medicine. Their work spans several subfields, including Pulmonary and Respiratory Medicine, Cardiology and Cardiovascular Medicine, and Surgery.

Their research covers topics related to Coronary Artery Anomalies, Cardiovascular Issues in Pregnancy, and Vascular Anomalies and Interventions. These topics reflect an emphasis on understanding complex cardiovascular conditions and potential interventions.

Bradshaw has contributed to scholarly literature through publications in recognized venues, most notably the Journal of Cardiothoracic and Vascular Anesthesia. A recent publication includes the paper titled Left Coronary Artery Reimplantation for Repair of Anomalous Origin of the Left Coronary Artery From the Pulmonary Artery in an Adult, published in 2023.

Frequent collaborators in Bradshaw's research include:

  • Navdeep K Chahal
  • Jiří Horák
  • Nabil K. Thalji
  • John Augoustides
  • Chandrika Rajan Garner

The research outputs and coauthorships suggest interdisciplinary collaboration in cardiovascular and surgical specialties.

Bradshaw's work has been cited in contexts related to advanced cardiovascular surgical techniques and congenital coronary artery conditions, supporting ongoing development in these domains.

Best Publications

  • The Cretaceous Separation Point batholith, New Zealand: granitoid magmas formed by melting of mafic lithosphere

    R.J. Muir;S.D. Weaver;J.D. Bradshaw;G.N. Eby

  • Acetone in the atmosphere: Distribution, sources, and sinks

    H. B. Singh;D. O'Hara;D. Herlth;W. Sachse

  • Origin of ozone and NOx in the tropical troposphere: A photochemical analysis of aircraft observations over the South Atlantic basin

    Daniel James Jacob;E. G. Heikes;S.-M. Fan;S.-M. Fan;Jennifer A. Logan

  • Convective transport of biomass burning emissions over Brazil during TRACE A

    Kenneth E. Pickering;Anne M. Thompson;Yansen Wang;Wei Kuo Tao

  • Photochemistry in biomass burning plumes and implications for tropospheric ozone over the tropical South Atlantic

    Denise Leonore Mauzerall;Jennifer A. Logan;Daniel J. Jacob;Bruce E. Anderson

  • Geochronology and geochemistry of pre-Jurassic superterranes in Marie Byrd Land, Antarctica

    R. J. Pankhurst;S. D. Weaver;J. D. Bradshaw;B. C. Storey

  • Influence of plumes from biomass burning on atmospheric chemistry over the equatorial and tropical South Atlantic during CITE 3

    M. O. Andreae;B. E. Anderson;D. R. Blake;J. D. Bradshaw

  • Hydrocarbon ratios during PEM‐WEST A: A model perspective

    S. A. McKeen;S. C. Liu;E.-Y. Hsie;X. Lin

  • Antarctica-New Zealand rifting and Marie Byrd Land lithospheric magmatism linked to ridge subduction and mantle plume activity

    S. D. Weaver;B. C. Storey;R. J. Pankhurst;S. B. Mukasa

  • Low ozone in the marine boundary layer of the tropical Pacific Ocean: Photochemical loss, chlorine atoms, and entrainment

    H. B. Singh;G. L. Gregory;B. Anderson;E. Browell

  • Geochronology and geochemistry of a Mesozoic magmatic arc system, Fiordland, New Zealand

    R. J. Muir;T. R. Ireland;S. D. Weaver;J. D. Bradshaw

  • Geochemistry of Cambrian volcanics of the Bowers Supergroup and implications for the Early Palaeozoic tectonic evolution of northern Victoria Land, Antarctica

    S.D. Weaver;J.D. Bradshaw;M.G. Laird

  • Reactive nitrogen and ozone over the western Pacific: Distribution, partitioning, and sources

    H. B. Singh;D. Herlth;R. Kolyer;L. Salas

  • Assessment of ozone photochemistry in the western North Pacific as inferred from PEM‐West A observations during the fall 1991

    D. D. Davis;J. Crawford;G. Chen;W. Chameides

  • Ion microprobe dating of Paleozoic granitoids: Devonian magmatism in New Zealand and correlations with Australia and Antarctica

    R.J. Muir;T.R. Ireland;S.D. Weaver;J.D. Bradshaw

  • Provisional Terrane Map of South Island, New Zealand

    D. G. Bishop;J. D. Bradshaw;C. A. Landis

  • On the origin of tropospheric ozone and NOx over the tropical South Pacific

    Martin G. Schultz;Daniel James Jacob;Yuhang Wang;Yuhang Wang;Jennifer A. Logan

  • Mantle plumes and Antarctica-New Zealand rifting; evidence from Mid-Cretaceous mafic dykes

    Bryan C. Storey;Philip T. Leat;Stephen D. Weaver;Robert J. Pankhurst

  • A review of the Median Tectonic Zone: Terrane boundaries and terrane amalgamation near the Median Tectonic Line

    J. D. Bradshaw

  • Summertime photochemistry of the troposphere at high northern latitudes

    Daniel James Jacob;Steven Charles Wofsy;P. S. Bakwin;S.-M. Fan

  • Chemical characteristics of continental outflow from Asia to the troposphere over the western Pacific Ocean during February‐March 1994: Results from PEM‐West B

    R. W. Talbot;J. E. Dibb;B. L. Lefer;J. D. Bradshaw

  • Ozone and aerosol distributions and air mass characteristics over the South Pacific during the burning season

    Marta A. Fenn;Edward V. Browell;Carolyn F. Butler;William B. Grant

  • Atmospheric chemistry in the Arctic and subarctic: Influence of natural fires, industrial emissions, and stratospheric inputs

    Steven Charles Wofsy;G. W. Sachse;G. L. Gregory;D. R. Blake

  • Ion microprobe UPb zircon geochronology of granitic magmatism in the Western Province of the South Island, New Zealand

    R.J. Muir;T.R. Ireland;S.D. Weaver;J.D. Bradshaw

  • Atmospheric measurements of peroxyacetyl nitrate and other organic nitrates at high latitudes: Possible sources and sinks

    H. B. Singh;D. O'Hara;D. Herlth;J. D. Bradshaw

  • Ozone, hydroperoxides, oxides of nitrogen, and hydrocarbon budgets in the marine boundary layer over the South Atlantic

    Brian Heikes;Meehye Lee;Daniel James Jacob;Robert Talbot

  • Observed distributions of nitrogen oxides in the remote free troposphere from the Nasa Global Tropospheric Experiment Programs

    J. Bradshaw;D. Davis;G. Grodzinsky;S. Smyth

  • Photostationary state analysis of the NO2‐NO system based on airborne observations from the western and central North Pacific

    J. Crawford;D. Davis;G. Chen;J. Bradshaw

  • Hydrogen peroxide and methylhydroperoxide distributions related to ozone and odd hydrogen over the North Pacific in the fall of 1991

    Brian G. Heikes;Meehye Lee;J. Bradshaw;S. Sandholm

  • An Assessment of Ozone Photochemistry in the Extratropical Western North Pacific: Impact of Continental Outflow During the Late Winter/Early Spring

    J. Crawford;D. Davis;G. Chen;J. Bradshaw

Frequent Co-Authors

Scott T. Sandholm
Scott T. Sandholm Georgia Institute of Technology
Gerald L. Gregory
Gerald L. Gregory Langley Research Center
Donald R. Blake
Donald R. Blake University of California, Irvine
G. W. Sachse
G. W. Sachse Langley Research Center
Douglas D. Davis
Douglas D. Davis Georgia Institute of Technology
Robert W. Talbot
Robert W. Talbot University of Houston
Brian G. Heikes
Brian G. Heikes University of Rhode Island
Edward V. Browell
Edward V. Browell Langley Research Center
James E. Collins
James E. Collins Langley Research Center
Donald C. Thornton
Donald C. Thornton Drexel University

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