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Kay I. Ohshima

Kay I. Ohshima

Kay I. Ohshima 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 Kay I. Ohshima sits on this spectrum.

38–42 publications: 1 scientists 43–47 publications: 0 scientists 48–52 publications: 3 scientists 53–57 publications: 8 scientists 58–62 publications: 11 scientists 63–67 publications: 16 scientists 68–72 publications: 24 scientists 73–77 publications: 31 scientists 78–82 publications: 49 scientists 83–87 publications: 77 scientists 88–92 publications: 86 scientists 93–97 publications: 88 scientists 98–102 publications: 92 scientists 103–107 publications: 84 scientists 108–112 publications: 102 scientists 113–117 publications: 108 scientists 118–122 publications: 117 scientists 123–127 publications: 126 scientists 128–132 publications: 146 scientists 133–137 publications: 114 scientists 138–142 publications: 102 scientists 143–147 publications: 127 scientists 148–152 publications: 102 scientists 153–157 publications: 112 scientists 158–162 publications: 102 scientists 163–167 publications: 127 scientists 168–172 publications: 121 scientists 173–177 publications: 112 scientists 178–182 publications: 109 scientists 183–187 publications: 98 scientists 188–192 publications: 92 scientists 193–197 publications: 105 scientists 198–202 publications: 77 scientists 203–207 publications: 80 scientists 208–212 publications: 89 scientists 213–217 publications: 70 scientists 218–222 publications: 74 scientists 223–227 publications: 74 scientists 228–232 publications: 70 scientists 233–237 publications: 67 scientists 238–242 publications: 59 scientists 243–247 publications: 67 scientists 248–252 publications: 51 scientists 253–257 publications: 46 scientists 258–262 publications: 41 scientists 263–267 publications: 39 scientists 268–272 publications: 34 scientists 273–277 publications: 39 scientists 278–282 publications: 35 scientists 283–287 publications: 36 scientists 288–292 publications: 35 scientists 293–297 publications: 29 scientists 298–302 publications: 23 scientists 303–307 publications: 39 scientists 308–312 publications: 34 scientists 313–317 publications: 23 scientists 318–322 publications: 18 scientists 323–327 publications: 18 scientists 328–332 publications: 21 scientists 333–337 publications: 20 scientists 338–342 publications: 15 scientists 343–347 publications: 13 scientists 348–352 publications: 24 scientists 353–357 publications: 25 scientists 358–362 publications: 10 scientists 363–367 publications: 20 scientists 368–372 publications: 17 scientists 373–377 publications: 18 scientists 378–382 publications: 15 scientists 383–387 publications: 7 scientists 388–392 publications: 22 scientists 393–397 publications: 9 scientists 398–402 publications: 11 scientists 403–407 publications: 16 scientists 408–412 publications: 4 scientists 413–417 publications: 5 scientists 418–422 publications: 14 scientists 423–427 publications: 8 scientists 428–432 publications: 7 scientists 433–437 publications: 7 scientists 438–442 publications: 10 scientists 443–447 publications: 10 scientists 448–452 publications: 3 scientists 453–457 publications: 9 scientists 458–462 publications: 11 scientists 463–467 publications: 4 scientists 468–472 publications: 6 scientists 473–477 publications: 11 scientists 478–482 publications: 8 scientists 483–487 publications: 2 scientists 488–492 publications: 3 scientists 493–497 publications: 4 scientists 498–502 publications: 4 scientists 503–507 publications: 4 scientists 508–509 publications: 4 scientists 510+ publications: 100 scientists
38 publications 510+

The last bar groups every scientist with 510 publications or more.

Kay I. Ohshima 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 Kay I. Ohshima sits on this spectrum.

30 D-Index: 15 scientists 31 D-Index: 42 scientists 32 D-Index: 60 scientists 33 D-Index: 90 scientists 34 D-Index: 103 scientists 35 D-Index: 108 scientists 36 D-Index: 142 scientists 37 D-Index: 147 scientists 38 D-Index: 147 scientists 39 D-Index: 152 scientists 40 D-Index: 143 scientists 41 D-Index: 157 scientists 42 D-Index: 141 scientists 43 D-Index: 151 scientists 44 D-Index: 140 scientists 45 D-Index: 135 scientists 46 D-Index: 121 scientists 47 D-Index: 108 scientists 48 D-Index: 128 scientists 49 D-Index: 111 scientists 50 D-Index: 106 scientists 51 D-Index: 112 scientists 52 D-Index: 102 scientists 53 D-Index: 103 scientists 54 D-Index: 94 scientists 55 D-Index: 61 scientists 56 D-Index: 101 scientists 57 D-Index: 71 scientists 58 D-Index: 65 scientists 59 D-Index: 78 scientists 60 D-Index: 93 scientists 61 D-Index: 56 scientists 62 D-Index: 58 scientists 63 D-Index: 52 scientists 64 D-Index: 63 scientists 65 D-Index: 49 scientists 66 D-Index: 53 scientists 67 D-Index: 57 scientists 68 D-Index: 50 scientists 69 D-Index: 44 scientists 70 D-Index: 44 scientists 71 D-Index: 31 scientists 72 D-Index: 33 scientists 73 D-Index: 33 scientists 74 D-Index: 23 scientists 75 D-Index: 32 scientists 76 D-Index: 24 scientists 77 D-Index: 17 scientists 78 D-Index: 19 scientists 79 D-Index: 9 scientists 80 D-Index: 21 scientists 81 D-Index: 20 scientists 82 D-Index: 17 scientists 83 D-Index: 19 scientists 84 D-Index: 19 scientists 85 D-Index: 14 scientists 86 D-Index: 6 scientists 87 D-Index: 14 scientists 88 D-Index: 17 scientists 89 D-Index: 10 scientists 90 D-Index: 8 scientists 91 D-Index: 8 scientists 92 D-Index: 9 scientists 93 D-Index: 6 scientists 94+ D-Index: 98 scientists
30 D-Index 94+

The last bar groups every scientist with 94 D-Index or more.

Overview

Kay I. Ohshima is affiliated with Hokkaido University in Japan. Their research expertise primarily lies within the field of Earth and Planetary Sciences, with specific contributions spanning Atmospheric Science, Oceanography, Environmental Chemistry, Global and Planetary Change, and Geology.

The scientist's work addresses key topics such as Arctic and Antarctic ice dynamics, cryospheric studies and observations, oceanographic and atmospheric processes, methane hydrates and related phenomena, climate change and permafrost, geology and paleoclimatology research, as well as marine and coastal ecosystems.

Recent publications by Kay I. Ohshima include:

  • Mapping of Active Frazil for Antarctic Coastal Polynyas, With an Estimation of Sea-Ice Production (2021, Geophysical Research Letters)
  • High-resolution mapping of circum-Antarctic landfast sea ice distribution, 2000-2018 (2020, Earth System Science Data)
  • Eighteen-year record of circum-Antarctic landfast-sea-ice distribution allows detailed baseline characterisation and reveals trends and variability (2021, The Cryosphere)
  • Strong ice-ocean interaction beneath Shirase Glacier Tongue in East Antarctica (2020, Nature Communications)
  • Observing Antarctic Bottom Water in the Southern Ocean (2023, Frontiers in Marine Science)

The scientist frequently collaborates with other researchers. Their notable coauthors include:

  • Takeshi Tamura (9 joint publications)
  • Kazuki Nakata (8 joint publications)
  • Vigan Mensah (8 joint publications)
  • Yasushi Fukamachi (8 joint publications)
  • Masato Ito (7 joint publications)

Kay I. Ohshima has published extensively in several scientific journals, with frequent contributions to:

  • Journal of Oceanography (6 publications)
  • Journal of Geophysical Research Oceans (5 publications)
  • Progress In Oceanography (4 publications)
  • Journal of Atmospheric and Oceanic Technology (3 publications)
  • Geophysical Research Letters (2 publications)

Best Publications

  • Mapping of sea ice production for Antarctic coastal polynyas

    Takeshi Tamura;Kay I. Ohshima;Sohey Nihashi

  • Antarctic Bottom Water production by intense sea-ice formation in the Cape Darnley polynya

    Kay I. Ohshima;Yasushi Fukamachi;Guy D. Williams;Sohey Nihashi

  • Circumpolar Mapping of Antarctic Coastal Polynyas and Landfast Sea Ice: Relationship and Variability

    Sohey Nihashi;Kay I. Ohshima

  • The suppression of Antarctic bottom water formation by melting ice shelves in Prydz Bay

    G. D. Williams;L. Herraiz-Borreguero;Fabien Roquet;T. Tamura

  • Near-surface circulation and tidal currents of the Okhotsk Sea observed with satellite-tracked drifters

    Kay I. Ohshima;Masaaki Wakatsuchi;Yasushi Fukamachi;Genta Mizuta

  • Distribution and formation of Okhotsk Sea Intermediate Water: An analysis of isopycnal climatological data

    Motoyo Itoh;Kay I. Ohshima;Masaaki Wakatsuchi

  • Sea ice production variability in Antarctic coastal polynyas

    Takeshi Tamura;Takeshi Tamura;Kay I. Ohshima;Alexander D. Fraser;Alexander D. Fraser;Guy D. Williams

  • Mapping of sea ice production in the Arctic coastal polynyas

    Takeshi Tamura;Takeshi Tamura;Kay I. Ohshima

  • The flow system in the Japan Sea caused by a sea level difference through shallow straits

    Kay I. Ohshima

  • Warming and oxygen decrease of intermediate water in the northwestern North Pacific, originating from the Sea of Okhotsk, 1955–2004

    Takuya Nakanowatari;Kay I. Ohshima;Masaaki Wakatsuchi

  • Estimation of Thin Ice Thickness and Detection of Fast Ice from SSM/I Data in the Antarctic Ocean

    Takeshi Tamura;Kay I. Ohshima;Thorsten Markus;Donald J. Cavalieri

  • Global view of sea-ice production in polynyas and its linkage to dense/bottom water formation

    Kay I. Ohshima;Sohey Nihashi;Katsushi Iwamoto

  • Structure and Seasonal Variability of the East Sakhalin Current

    Genta Mizuta;Yasushi Fukamachi;Kay I. Ohshima;Masaaki Wakatsuchi

  • Evidence for ice-ocean albedo feedback in the Arctic Ocean shifting to a seasonal ice zone

    Haruhiko Kashiwase;Haruhiko Kashiwase;Kay I. Ohshima;Sohey Nihashi;Hajo Eicken

  • Thickness and production of sea ice in the Okhotsk Sea coastal polynyas from AMSR‐E

    Sohey Nihashi;Kay I. Ohshima;Takeshi Tamura;Yasushi Fukamachi

  • Potential regime shift in decreased sea ice production after the Mertz Glacier calving.

    T. Tamura;T. Tamura;G. D. Williams;A. D. Fraser;K. I. Ohshima

  • Physical, structural, and isotopic characteristics and growth processes of fast sea ice in Lützow‐Holm Bay, Antarctica

    T. Kawamura;K. I. Ohshima;T. Takizawa;S. Ushio

  • Seasonal Variations of Water Masses and Sea Level in the Southwestern Part of the Okhotsk Sea

    Motoyo Itoh;Kay I. Ohshima

  • Seasonal variations of the Antarctic coastal ocean in the vicinity of Lützow-Holm Bay

    Kay I. Ohshima;Takatoshi Takizawa;Shuki Ushio;Toshiyuki Kawamura

  • Improved mapping of sea ice production in the Arctic Ocean using AMSR‐E thin ice thickness algorithm

    Katsushi Iwamoto;Kay I. Ohshima;Takeshi Tamura;Takeshi Tamura

Frequent Co-Authors

Takeshi Tamura
Takeshi Tamura National Institute of Polar Research
Masaaki Wakatsuchi
Masaaki Wakatsuchi Hokkaido University
Hajo Eicken
Hajo Eicken Alfred Wegener Institute for Polar and Marine Research
Guy D. Williams
Guy D. Williams University of Tasmania
Robert A. Massom
Robert A. Massom Australian Antarctic Division
Stephen C. Riser
Stephen C. Riser University of Washington
Sascha Willmes
Sascha Willmes University of Trier
Hiroyasu Hasumi
Hiroyasu Hasumi University of Tokyo
Fabien Roquet
Fabien Roquet University of Gothenburg
Mark A. Hindell
Mark A. Hindell University of Tasmania

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