World's Best Scientists 2026 revealed!
Kyoji Sassa

Kyoji Sassa

D-Index & Metrics

Earth Science

D-Index
53
Citations
9860
World Ranking
2877
National Ranking
63

Kyoji Sassa 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 Kyoji Sassa 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+

This scientist: 326 publications — 88th percentile

88% of scientists in this discipline score the same or lower.

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

Kyoji Sassa 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 Kyoji Sassa 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+

This scientist: 53 D-Index — 63rd percentile

63% of scientists in this discipline score the same or lower.

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

Overview

Kyoji Sassa is affiliated with Kyoto University in Japan and has contributed extensively to research in the field of landslide science and disaster risk reduction. Their work spans several interdisciplinary areas within environmental science, engineering, and earth and planetary sciences, with a particular focus on landslides and related hazards.

The main research topics covered in their publications include:

  • Landslides and related hazards
  • Flood Risk Assessment and Management
  • Cryospheric studies and observations
  • Earthquake and tectonic studies
  • Geotechnical Engineering and Analysis
  • Dam Engineering and Safety
  • Seismology and Earthquake Studies

Their work is published predominantly in the journal Landslides, with 26 publications, as well as in the Journal of Geotechnical and Geoenvironmental Engineering. They have co-authored work with several frequent collaborators including Doan Huy Loi, Khang Dang, Kaoru Takara, Kazuo Konagai, and Peter Bobrowsky.

In terms of research subfields, their scholarship is concentrated in:

  • Management, Monitoring, Policy and Law
  • Global and Planetary Change
  • Civil and Structural Engineering
  • Atmospheric Science
  • Geophysics

Several recent papers illustrate the scope of their research interests and collaborations:

  • The Kyoto Landslide Commitment 2020: launched, 2021, Landslides
  • Landslide risk management: from hazard to disaster risk reduction, 2023, Landslides
  • A coupled hydrological-geotechnical framework for forecasting shallow landslide hazard-a case study in Halong City, Vietnam, 2020, Landslides
  • Understanding and reducing the disaster risk of landslide-induced tsunamis: a short summary of the panel discussion in the World Tsunami Awareness Day Special Event of the Fifth World Landslide Forum, 2022, Landslides
  • Contribution of the International Consortium on Landslides to the implementation of the Sendai Framework for Disaster Risk Reduction: engraining to the Science and Technology Roadmap, 2020, Landslides

Kyoji Sassa has also contributed to the publication of academic books, primarily through Springer International Publishing, with six titles all titled Understanding and Reducing Landslide Disaster Risk published in 2020 with varying citation counts between 8 and 20. Additionally, three volumes were published under the Progress in Landslide Research and Technology series between 2022 and 2023, reflecting ongoing developments and advances in landslide research.

The body of work reflects an emphasis on integrating scientific research with disaster risk management policies and technologies, positioning the scientist within both academic and practical applications concerning landslide hazard assessment and mitigation.

Best Publications

  • Pore-pressure generation and movement of rainfall-induced landslides: effects of grain size and fine-particle content

    Gonghui Wang;Kyoji Sassa

  • Undrained dynamic-loading ring-shear apparatus and its application to landslide dynamics

    Kyoji Sassa;Hiroshi Fukuoka;Gonghui Wang;Naohide Ishikawa

  • An integrated model simulating the initiation and motion of earthquake and rain induced rapid landslides and its application to the 2006 Leyte landslide

    Kyoji Sassa;Osamu Nagai;Renato Solidum;Yoichi Yamazaki

  • Factors affecting rainfall-induced flowslides in laboratory flume tests

    G. Wang;K. Sassa

  • Failure processes in a full-scale landslide experiment using a rainfall simulator

    H. Moriwaki;T. Inokuchi;T. Hattanji;K. Sassa

  • Earthquake-induced-landslides : Distribution, motion and mechanisms

    Kyoji Sassa;Hiroshi Fukuoka;Gabrielle Scarascia-Mugnozza;Stephen Evans

  • Geotechnical model for the motion of landslides

    K Sassa

  • A fluidized landslide on a natural slope by artificial rainfall

    Hirotaka Ochiai;Yasuhiko Okada;Gen Furuya;Yoichi Okura

  • Analysis of a spatial distribution of landslides triggered by the 2004 Chuetsu earthquakes of Niigata Prefecture, Japan

    H. B. Wang;H. B. Wang;K. Sassa;W. Y. Xu

  • The influence of intense rainfall on the activity of large-scale crystalline schist landslides in Shikoku Island, Japan

    Yong Hong;Hiromasa Hiura;Kazuo Shino;Kyoji Sassa

  • Prototyping an experimental early warning system for rainfall-induced landslides in Indonesia using satellite remote sensing and geospatial datasets

    Zonghu Liao;Yang Hong;Jun Wang;Jun Wang;Hiroshi Fukuoka

  • Mechanism of a long-runout landslide triggered by the August 1998 heavy rainfall in Fukushima Prefecture, Japan

    F.W Wang;Kyoji Sassa;Gonghui Wang

  • Failure process and hydrologic response of a two layer physical model: Implications for rainfall-induced landslides

    Sérgio D.N. Lourenço;Kyoji Sassa;Hiroshi Fukuoka

  • The liquefaction of clayey soils under cyclic loading

    Ivan B. Gratchev;Kyoji Sassa;Victor I. Osipov;Viatcheslav N. Sokolov

  • PERFORMING UNDRAINED SHEAR TESTS ON SATURATED SANDS IN A NEW INTELLIGENT TYPE OF RING SHEAR APPARATUS

    Kyoji Sassa;Gonghui Wang;Hiroshi Fukuoka

  • Downslope volume enlargement of a debris slide–debris flow in the 1999 Hiroshima, Japan, rainstorm

    Gonghui Wang;Kyoji Sassa;Hiroshi Fukuoka

  • Excess pore pressure and grain crushing of sands by means of undrained and naturally drained ring-shear tests

    Yasuhiko Okada;Kyoji Sassa;Hiroshi Fukuoka

  • Post-failure mobility of saturated sands in undrained load-controlled ring shear tests

    Gonghui Wang;Kyoji Sassa

  • Landslide risk evaluation and hazard zoning for rapid and long-travel landslides in urban development areas

    Kyoji Sassa;Gonghui Wang;Hiroshi Fukuoka;Fawu Wang

  • A distributed hydrological–geotechnical model using satellite-derived rainfall estimates for shallow landslide prediction system at a catchment scale

    Apip;Kaoru Takara;Yosuke Yamashiki;Kyoji Sassa

  • Mechanism Of Flows In Granular Soils

    Kyoji Sassa

Frequent Co-Authors

Hiroshi Fukuoka
Hiroshi Fukuoka Niigata University
Gonghui Wang
Gonghui Wang Kyoto University
Kaoru Takara
Kaoru Takara Kyoto University
Fawu Wang
Fawu Wang Tongji University
Matjaž Mikoš
Matjaž Mikoš University of Ljubljana
Yueping Yin
Yueping Yin China Geological Survey
Nicola Casagli
Nicola Casagli University of Florence
Mauri McSaveney
Mauri McSaveney GNS Science
Fausto Guzzetti
Fausto Guzzetti Consiglio Nazionale delle Ricerche - CNR
Yang Hong
Yang Hong University of Oklahoma

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