World's Best Scientists 2026 revealed!

D-Index & Metrics

Environmental Sciences

D-Index
41
Citations
5100
World Ranking
7858
National Ranking
98

Patrick J. Espy 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 Patrick J. Espy sits on this spectrum.

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: 283 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: 25 scientists 501–510 publications: 17 scientists 511–520 publications: 18 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 681–686 publications: 3 scientists 687+ publications: 100 scientists
41 publications 687+

This scientist: 192 publications — 61st percentile

61% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 687 publications or more.

Patrick J. Espy 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 Patrick J. Espy sits on this spectrum.

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: 199 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: 19 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: 99 scientists
30 D-Index 125+

This scientist: 41 D-Index — 22nd percentile

22% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 125 D-Index or more.

Overview

Patrick J. Espy is affiliated with the Norwegian University of Science and Technology in Norway. Their research primarily spans the fields of Physics and Astronomy as well as Earth and Planetary Sciences. Within these fields, they focus on subfields including Astronomy and Astrophysics, Atmospheric Science, Geophysics, Oceanography, and Global and Planetary Change.

The main topics covered in Patrick J. Espy's body of work include:

  • Ionosphere and magnetosphere dynamics
  • Atmospheric Ozone and Climate
  • Solar and Space Plasma Dynamics
  • Geophysics and Gravity Measurements
  • Earthquake Detection and Analysis
  • Meteorological Phenomena and Simulations
  • Seismic Waves and Analysis

They have contributed to several recent publications, including:

  • "Atmospheric tomography using the Nordic Meteor Radar Cluster and Chilean Observation Network De Meteor Radars: network details and 3D-Var retrieval" (2021), Atmospheric Measurement Techniques
  • "Climatological Westward-Propagating Semidiurnal Tides and Their Composite Response to Sudden Stratospheric Warmings in SuperDARN and SD-WACCM-X" (2021), Journal of Geophysical Research Atmospheres
  • "Electrojet Estimates From Mesospheric Magnetic Field Measurements" (2021), Journal of Geophysical Research Space Physics
  • "Benchmarking microbarom radiation and propagation model against infrasound recordings: a vespagram-based approach" (2021), Annales Geophysicae
  • "Tidal Variations in the Mesosphere and Lower Thermosphere Before, During, and After the 2009 Sudden Stratospheric Warming" (2021), Journal of Geophysical Research Space Physics

Their frequent coauthors include:

  • R. E. Hibbins
  • Yvan Orsolini
  • Willem E. van Caspel
  • Stefan Bender
  • L. J. Paxton

Patrick J. Espy has published repeatedly in several scientific venues, with concentration in these journals:

  • Journal of Geophysical Research Atmospheres
  • Journal of Geophysical Research Space Physics
  • Annales Geophysicae
  • Atmospheric Chemistry and Physics
  • Atmospheric Measurement Techniques

Best Publications

  • Franck–Condon Factors, r‐Centroids, Electronic Transition Moments, and Einstein Coefficients for Many Nitrogen and Oxygen Band Systems

    Forrest R. Gilmore;Russ R. Laher;Patrick J. Espy

  • The Aeronomy of Ice in the Mesosphere (AIM) mission: Overview and early science results

    James M. Russell;Scott M. Bailey;Larry L. Gordley;David W. Rusch

  • Observations of stratospheric warmings and mesospheric coolings by the TIMED SABER instrument

    D. E. Siskind;L. Coy;P. Espy

  • The excitation and collisional deactivation of metastable N(²P) atoms in auroras

    E.C. Zipf;P.J. Espy;C.F. Boyle

  • Comparison of Mesospheric Winds From a High-Altitude Meteorological Analysis System and Meteor Radar Observations During the Boreal Winters of 2009-2010 and 2012-2013

    J McCormack;K Hoppel;D Kuhl;R de Wit

  • Trends and variability of mesospheric temperature at high-latitudes

    P.J Espy;P.J Espy;J Stegman

  • Interannual variations of the quasi‐16‐day oscillation in the polar summer mesospheric temperature

    P. J. Espy;J. Stegman;G. Witt

  • Evidence for non‐local‐thermodynamic‐equilibrium rotation in the OH nightglow

    W. R. Pendleton;P. J. Espy;M. R. Hammond

  • Measurements of ultraviolet radiation from a 5-km/s bow shock

    Peter W. Erdman;Edward C. Zipf;Patrick Espy;Carl L. Howlett

  • Observations of gravity wave forcing of the mesopause region during the January 2013 major Sudden Stratospheric Warming

    Rosmarie Johanna De Wit;Robert Hibbins;Patrick Joseph Espy;Yvan Orsolini

  • Stratospheric gravity wave characteristics and seasonal variations observed by lidar at the South Pole and Rothera, Antarctica

    Chihoko Yamashita;Chihoko Yamashita;Xinzhao Chu;Han-Li Liu;Patrick J. Espy

  • ALOHA‐93 measurements of intrinsic AGW characteristics using airborne airglow imager and groundbased Na wind/temperature lidar

    G. R. Swenson;M. J. Taylor;P. J. Espy;C. Gardner

  • Flight Measurements of Low-Velocity Bow Shock Ultraviolet Radiation

    Peter W. Erdman;Edward C. Zipf;Patrick Espy;Carl Howlett

  • Seasonal variations of the gravity wave momentum flux in the Antarctic mesosphere and lower thermosphere

    P. J. Espy;G. O.L. Jones;G. R. Swenson;J. Tang

  • Tidal modulation of the gravity‐wave momentum flux in the Antarctic mesosphere

    P. J. Espy;G. O.L. Jones;G. R. Swenson;J. Tang

  • Direct observations of nitric oxide produced by energetic electron precipitation into the Antarctic middle atmosphere

    David A. Newnham;Patrick J. Espy;Mark A. Clilverd;Craig J. Rodger

  • Observations of 2-dimensional airglow structure and Na density from the ALOHA, October 9, 1993 ‘storm flight’

    G. R. Swenson;P. J. Espy

  • Mesospheric Na layer at extreme high latitudes in summer

    John M. C. Plane;Rachel M. Cox;Jun Qian;William M. Pfenninger

  • Polar mesospheric clouds observed by an iron Boltzmann lidar at Rothera (67.5°S, 68.0°W), Antarctica from 2002 to 2005: Properties and implications

    Xinzhao Chu;Patrick J. Espy;Graeme J. Nott;Graeme J. Nott;Jan C. Diettrich

  • Toward an Improved Representation of Middle Atmospheric Dynamics Thanks to the ARISE Project

    E. Blanc;L. Ceranna;A. Hauchecorne;A. Charlton-Perez

  • Observation of a quasi 16‐day oscillation in the polar summer mesospheric temperature

    P. J. Espy;G. Witt

  • Observations of gravity wave forcing of themesopause region during the January 2013 major Sudden Stratospheric Warming

    R. J. deWit;R. E. Hibbins;P. J. Espy;Y. J. Orsolini

Frequent Co-Authors

Michael J. Taylor
Michael J. Taylor Utah State University
Yvan J. Orsolini
Yvan J. Orsolini Norwegian Institute for Air Research
Xinzhao Chu
Xinzhao Chu University of Colorado Boulder
Donal P. Murtagh
Donal P. Murtagh Chalmers University of Technology
Mark A. Clilverd
Mark A. Clilverd British Antarctic Survey
Graham V. Candler
Graham V. Candler University of Minnesota
Deborah A. Levin
Deborah A. Levin University of Illinois at Urbana-Champaign
Chester S. Gardner
Chester S. Gardner University of Illinois at Urbana-Champaign
Larry J. Paxton
Larry J. Paxton Johns Hopkins University Applied Physics Laboratory
Annika Seppälä
Annika Seppälä University of Otago

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