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Research facility · Tsukuba · Japan

Public Works Research Institute

In research, Public Works Research Institute stands highest in Physical Sciences (#11,436 of 12,888 worldwide), 2022–2025. Relative to its size it is most specialised in Civil and Structural Engineering — Civil and Structural Engineering is 12.9× its share of world research.

pwri.go.jp/engROR OpenAlex
World rank, 2022–2025
#21,494
of 28,054 · #10,807 all time
Rank in Japan
#647
of 1,070
Research works
1.9k
▼ 19% vs 2013–17
Citations
33k
17.8 per fractional work
Top-10% rate
7.7%
record average 16.5%
Open access
34%
world 28%

What is Public Works Research Institute known for in research?

The fields where it stands highest, 2022–2025, ranked among every institution above the floor in each field.

FieldWorld rankWhere that sitsTop-10% rateWorksAll time
Physical SciencesDomain #11,436 of 12,888 6.6%110 #6808

Each strip is that field’s whole ranked pool, with the notch where Public Works Research Institute sits in it, in the colour of the band that rank falls in. The track under the rate is the rate itself: it carries no world mark, because the world rate differs by field (from about 6% to 21% in this record).

What does Public Works Research Institute specialise in?

Where its research is concentrated relative to its size: Civil and Structural Engineering takes 12.9× the share of its output that it takes of world research.

  1. Civil and Structural EngineeringSubfield · 21.5 works13×
← less than its size predicts1×more →

Location quotient, a volume reading rather than an impact one. It surfaces small, lopsided specialities.

Field profile

Location quotient across every field it publishes in: outside the ring is more than an institution of this size would be expected to publish, inside it is less.

Agricultural and Biological Sciences: 1.23× its world share, 8 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.23× its world share, 2 worksBiochemistry, Geneti…Immunology and Microbiology: 0.12× its world share, 0 worksImmunology and Micro…Neuroscience: 0.08× its world share, 0 worksNeuroscienceChemistry: 0.08× its world share, 0 worksChemistryComputer Science: 0.20× its world share, 2 worksComputer ScienceEarth and Planetary Sciences: 7.43× its world share, 16 worksEarth and Planetary …Energy: 0.14× its world share, 0 worksEnergyEngineering: 1.94× its world share, 41 worksEngineeringEnvironmental Science: 6.78× its world share, 48 worksEnvironmental ScienceMaterials Science: 0.42× its world share, 2 worksMaterials ScienceMathematics: 0.10× its world share, 0 worksMathematicsPhysics and Astronomy: 0.05× its world share, 0 worksPhysics and AstronomyHealth Professions: 0.27× its world share, 1 worksHealth ProfessionsMedicine: 0.12× its world share, 3 worksMedicineNursing: 0.19× its world share, 0 worksNursingArts and Humanities: 0.16× its world share, 1 worksArts and HumanitiesBusiness, Management and Accounting: 0.19× its world share, 1 worksBusiness, Management…Decision Sciences: 0.27× its world share, 0 worksDecision SciencesEconomics, Econometrics and Finance: 0.15× its world share, 0 worksEconomics, Econometr…Psychology: 0.40× its world share, 2 worksPsychologySocial Sciences: 0.69× its world share, 12 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Earth and Planetary Sciences, 7.4×. Every wedge is a field page.

Who are the top researchers at Public Works Research Institute?

Ranked on the composite score, Kyoji Kaeriyama, Kenichi Fujino and Masahiro Shirato lead among researchers whose main affiliation is Public Works Research Institute.

  1. 1 Kyoji Kaeriyama Japan · #467,528 worldwide 135 citations · 24 works
  2. 2 Kenichi Fujino Japan · #518,200 worldwide 32 citations · 17 works
  3. 3 Masahiro Shirato Japan · #579,313 worldwide 64 citations · 16 works
  4. 4 Kou Furuike Japan · #594,713 worldwide 27 citations · 23 works
  5. 5 Toshiro SAN-NAMI Japan · #749,781 worldwide 54 citations · 72 works
  6. 6 Yukimichi Nakao Japan · #857,207 worldwide 57 citations · 19 works
  7. 7 Takaaki UDA Japan · #857,977 worldwide 169 citations · 374 works
  8. 8 Shigeki Unjoh Japan · #883,457 worldwide 89 citations · 35 works
  9. 9 Masumi SERIZAWA Japan · #997,453 worldwide 73 citations · 98 works
  10. 10 Yoshikazu Yamaguchi Japan · #1,119,384 worldwide 50 citations · 50 works
All ranked researchers at Public Works Research Institute

Which keywords describe research at Public Works Research Institute?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Climate Change, Remote Sensing, Hydrological Modeling, Sediment Transport, Land Use Change, Risk Perception, Flood Risk and Flood Inundation Modeling.

▲ more of its work than of the world’s◆ about the world’s share▼ less than the world’s

Size is fractional works in 2022–2025 in the topics tagged with each word; colour is the word's share of this institution's work against its share of the world's. The 40 words are chosen for being large and distinctive. Each links to the topic it comes from most.

All 40 words, with their numbers
  1. Climate Change31▲ 8.1×34 topics
  2. Remote Sensing20▲ 11×16 topics
  3. Hydrological Modeling14▲ 41×4 topics
  4. Sediment Transport13▲ 59×6 topics
  5. Land Use Change10▲ 22×5 topics
  6. Risk Perception7▲ 19×2 topics
  7. Flood Risk7▲ 65×2 topics
  8. Flood Inundation Modeling7▲ 66×1 topic
  9. Surface Water Mapping7▲ 66×1 topic
  10. Water Resources7▲ 19×5 topics
  11. Global Warming6▲ 11×5 topics
  12. Freshwater Biodiversity6▲ 68×2 topics
  13. Model Evaluation6▲ 32×2 topics
  14. Fisheries Sustainability6▲ 44×2 topics
  15. Invasive Species5▲ 8.9×5 topics
  16. River Restoration5▲ 92×2 topics
  17. Global Hydrology5▲ 54×1 topic
  18. Uncertainty Assessment5▲ 54×1 topic
  19. Habitat Fragmentation5▲ 16×2 topics
  20. Analysis5▲ 35×3 topics
  21. Conservation Challenges5▲ 71×1 topic
  22. Flow Regulation5▲ 71×1 topic
  23. Risk Assessment5▲ 4.9×7 topics
  24. DNA Barcoding4▲ 19×3 topics
  25. Geomorphological Effects4▲ 83×2 topics
  26. Fluvial Processes4▲ 107×1 topic
  27. Riparian Vegetation4▲ 107×1 topic
  28. Seismic4▲ 46×1 topic
  29. Tunnel4▲ 31×1 topic
  30. Global Carbon Budget4▲ 38×2 topics
  31. Conflict4▲ 16×4 topics
  32. GIS-based Modeling4▲ 30×2 topics
  33. Sea-Level Rise4▲ 22×2 topics
  34. Wave Modeling3▲ 48×2 topics
  35. Hazard3▲ 34×1 topic
  36. Landslide3▲ 34×1 topic
  37. Agricultural Sustainability3▲ 20×1 topic
  38. Soil Erosion3▲ 59×1 topic
  39. Liquefaction Resistance3▲ 80×1 topic
  40. Particle Shape Effects3▲ 80×1 topic

Which research topics does Public Works Research Institute publish most on?

By volume in 2022–2025: Flood Risk Assessment and Management, Hydrology and Watershed Management Studies, Fish Ecology and Management Studies and Hydrology and Sediment Transport Processes.

Flood Risk Assessment an…7Flood Risk Assessment and Management: 7 fractional worksHydrology and Watershed …5Hydrology and Watershed Management Studies: 5 fractional worksFish Ecology and Managem…5Fish Ecology and Management Studies: 5 fractional worksHydrology and Sediment T…4Hydrology and Sediment Transport Processes: 4 fractional worksGeotechnical Engineering and Underground Structures: 4 fractional worksLandslides and related hazards: 3 fractional worksSoil erosion and sedimen…3Soil erosion and sediment transport: 3 fractional worksGeotechnical Engineering…3Geotechnical Engineering and Soil Mechanics: 3 fractional worksCoastal and Marine Dynam…3Coastal and Marine Dynamics: 3 fractional worksEnvironmental DNA in Bio…2Environmental DNA in Biodiversity Studies: 2 fractional works
Global and Planetary ChangeWater Science and TechnologyNature and Landscape ConservationEcology4 others

Area is fractional works; colour is the subfield each topic belongs to.

  1. 1 Flood Risk Assessment and Management Global and Planetary Change 7 works
  2. 2 Hydrology and Watershed Management Studies Water Science and Technology 5 works
  3. 3 Fish Ecology and Management Studies Nature and Landscape Conservation 5 works
  4. 4 Hydrology and Sediment Transport Processes Ecology 4 works
  5. 5 Geotechnical Engineering and Underground Structures Civil and Structural Engineering 4 works
  6. 6 Landslides and related hazards Management, Monitoring, Policy and Law 3 works
  7. 7 Soil erosion and sediment transport Soil Science 3 works
  8. 8 Geotechnical Engineering and Soil Mechanics Civil and Structural Engineering 3 works
  9. 9 Coastal and Marine Dynamics Earth-Surface Processes 3 works
  10. 10 Environmental DNA in Biodiversity Studies Ecology 2 works

How open and international is its research?

Against the world’s own shares — the tick on each track. Both are shares of its output, so they sit on one scale and can be read against each other as well as against the world.

openly available33.7%not open66.3%

World: 28% of research is openly available.

with international co-authors18.3%domestic only81.7%

World: 19% is written across borders.

How has Public Works Research Institute's research output changed?

Output in 2018–2022 was 19% lower than in 2013–2017.

1990200020102020
grewheldshrank

The same series as a ribbon — one cell per year, darker for more. The line above answers how much; this answers when.

Other research institutions in Tsukuba

All research institutions in Tsukuba

Research measures only: rankings here say nothing about teaching, admissions or student experience. Comparable institutions and collaboration partners are in the interactive view on the map.