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Science in Tonga

Open access
65%
world 40%
International
45%
world 18%
Tonga

Which fields of science does Tonga work in?

In 2022-now, 40% of research in Tonga is in Physical Sciences, 32% in Health Sciences. Its largest fields are Medicine (22%), Engineering (18%), Computer Science (9%). It does 1.4× the world's share of Health Sciences.

Physical Sciences: 135 fractional works · 40.3% of its workEngineering: 59 fractional works · 17.5% of its workControl and Systems Engineering: 18 fractional works · 5.5% of its workBiomedical Engineering: 12 fractional works · 3.6% of its workComputational Mechanics: 10 fractional works · 3.1% of its workCivil and Structural Engineering: 10 fractional works · 3.0% of its workAerospace Engineering: 5 fractional works · 1.4% of its workOcean Engineering: 1 fractional works · 0.4% of its workSmaller subfields together: 2 fractional works · 0.5% of its workComputer Science: 31 fractional works · 9.2% of its workComputational Theory and Mathematics: 20 fractional works · 5.8% of its workArtificial Intelligence: 5 fractional works · 1.6% of its workInformation Systems: 2 fractional works · 0.7% of its workHuman-Computer Interaction: 1 fractional works · 0.4% of its workComputer Networks and Communications: 1 fractional works · 0.3% of its workSmaller subfields together: 2 fractional works · 0.5% of its workPhysics and Astronomy: 18 fractional works · 5.3% of its workStatistical and Nonlinear Physics: 17 fractional works · 5.0% of its workSmaller subfields together: 1 fractional works · 0.3% of its workMathematics: 14 fractional works · 4.0% of its workModeling and Simulation: 12 fractional works · 3.6% of its workSmaller subfields together: 1 fractional works · 0.4% of its workEnvironmental Science: 7 fractional works · 2.1% of its workGlobal and Planetary Change: 3 fractional works · 0.8% of its workEcology: 2 fractional works · 0.5% of its workHealth, Toxicology and Mutagenesis: 1 fractional works · 0.3% of its workSmaller subfields together: 2 fractional works · 0.5% of its workEarth and Planetary Sciences: 5 fractional works · 1.6% of its workGeophysics: 3 fractional works · 0.8% of its workAtmospheric Science: 1 fractional works · 0.4% of its workOceanography: 1 fractional works · 0.3% of its workSmaller subfields together: 1 fractional works · 0.2% of its workMaterials Science: 2 fractional works · 0.5% of its workBiomaterials: 1 fractional works · 0.3% of its workSmaller subfields together: 1 fractional works · 0.2% of its workChemistry: 0 fractional works · 0.1% of its workChemical Engineering: 0 fractional works · 0.0% of its workHealth Sciences: 106 fractional works · 31.7% of its workMedicine: 74 fractional works · 22.2% of its workEpidemiology: 10 fractional works · 2.9% of its workPhysiology: 9 fractional works · 2.8% of its workSurgery: 7 fractional works · 2.2% of its workCardiology and Cardiovascular Medicine: 5 fractional works · 1.6% of its workPublic Health, Environmental and Occupational Health: 4 fractional works · 1.3% of its workPulmonary and Respiratory Medicine: 4 fractional works · 1.3% of its workInfectious Diseases: 4 fractional works · 1.2% of its workRadiology, Nuclear Medicine and Imaging: 4 fractional works · 1.2% of its workOphthalmology: 4 fractional works · 1.2% of its workOncology: 2 fractional works · 0.7% of its workPediatrics, Perinatology and Child Health: 2 fractional works · 0.6% of its workRheumatology: 2 fractional works · 0.6% of its workNeurology: 2 fractional works · 0.5% of its workPsychiatry and Mental health: 1 fractional works · 0.4% of its workEndocrinology, Diabetes and Metabolism: 1 fractional works · 0.4% of its workHematology: 1 fractional works · 0.4% of its workCritical Care and Intensive Care Medicine: 1 fractional works · 0.3% of its workPathology and Forensic Medicine: 1 fractional works · 0.3% of its workEmergency Medicine: 1 fractional works · 0.3% of its workHealth Informatics: 1 fractional works · 0.3% of its workRehabilitation: 1 fractional works · 0.2% of its workSmaller subfields together: 6 fractional works · 1.7% of its workHealth Professions: 24 fractional works · 7.3% of its workRadiological and Ultrasound Technology: 9 fractional works · 2.8% of its workPhysical Therapy, Sports Therapy and Rehabilitation: 7 fractional works · 2.0% of its workGeneral Health Professions: 4 fractional works · 1.1% of its workOccupational Therapy: 2 fractional works · 0.6% of its workEmergency Medical Services: 2 fractional works · 0.5% of its workSmaller subfields together: 1 fractional works · 0.3% of its workDentistry: 5 fractional works · 1.4% of its workOrthodontics: 2 fractional works · 0.6% of its workOral Surgery: 2 fractional works · 0.5% of its workPeriodontics: 1 fractional works · 0.3% of its workNursing: 2 fractional works · 0.7% of its workNutrition and Dietetics: 2 fractional works · 0.5% of its workSmaller subfields together: 1 fractional works · 0.2% of its workVeterinary: 0 fractional works · 0.1% of its workSocial Sciences: 68 fractional works · 20.2% of its workPsychology: 24 fractional works · 7.2% of its workSocial Psychology: 17 fractional works · 5.0% of its workDevelopmental and Educational Psychology: 5 fractional works · 1.4% of its workClinical Psychology: 2 fractional works · 0.5% of its workExperimental and Cognitive Psychology: 1 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.1% of its workSocial Sciences: 23 fractional works · 6.9% of its workEducation: 8 fractional works · 2.3% of its workPolitical Science and International Relations: 3 fractional works · 0.9% of its workSociology and Political Science: 3 fractional works · 0.9% of its workDemography: 2 fractional works · 0.7% of its workHealth: 2 fractional works · 0.5% of its workSafety Research: 1 fractional works · 0.4% of its workGeneral Social Sciences: 1 fractional works · 0.2% of its workLaw: 1 fractional works · 0.2% of its workGeography, Planning and Development: 1 fractional works · 0.2% of its workSmaller subfields together: 2 fractional works · 0.6% of its workDecision Sciences: 11 fractional works · 3.3% of its workManagement Science and Operations Research: 8 fractional works · 2.3% of its workStatistics, Probability and Uncertainty: 3 fractional works · 0.8% of its workSmaller subfields together: 1 fractional works · 0.2% of its workArts and Humanities: 5 fractional works · 1.6% of its workLanguage and Linguistics: 1 fractional works · 0.4% of its workPhilosophy: 1 fractional works · 0.4% of its workHistory and Philosophy of Science: 1 fractional works · 0.3% of its workSmaller subfields together: 2 fractional works · 0.5% of its workEconomics, Econometrics and Finance: 2 fractional works · 0.7% of its workEconomics and Econometrics: 2 fractional works · 0.6% of its workSmaller subfields together: 0 fractional works · 0.0% of its workBusiness, Management and Accounting: 2 fractional works · 0.6% of its workOrganizational Behavior and Human Resource Management: 2 fractional works · 0.4% of its workSmaller subfields together: 0 fractional works · 0.1% of its workLife Sciences: 26 fractional works · 7.7% of its workNeuroscience: 11 fractional works · 3.2% of its workCognitive Neuroscience: 10 fractional works · 3.0% of its workSmaller subfields together: 1 fractional works · 0.2% of its workBiochemistry, Genetics and Molecular Biology: 7 fractional works · 2.0% of its workMolecular Biology: 3 fractional works · 0.8% of its workGenetics: 2 fractional works · 0.6% of its workSmaller subfields together: 2 fractional works · 0.6% of its workAgricultural and Biological Sciences: 5 fractional works · 1.4% of its workPlant Science: 1 fractional works · 0.4% of its workFood Science: 1 fractional works · 0.3% of its workGeneral Agricultural and Biological Sciences: 1 fractional works · 0.3% of its workSmaller subfields together: 2 fractional works · 0.5% of its workImmunology and Microbiology: 4 fractional works · 1.0% of its workImmunology: 1 fractional works · 0.4% of its workParasitology: 1 fractional works · 0.2% of its workApplied Microbiology and Biotechnology: 1 fractional works · 0.2% of its workSmaller subfields together: 1 fractional works · 0.2% of its workPharmacology, Toxicology and Pharmaceutics: 0 fractional works · 0.1% of its workALL ITS WORKTonga335fractional works, 2022-now
Life Sciences8%Physical Sciences40%Health Sciences32%Social Sciences20%

Each ring splits the one inside it: the four domains of science, their fields, their subfields. Size is fractional works in 2022-now. Every slice is a page; the interactive view zooms down to single topics and colours each by how much more of it this country does than the world.

Its 4 domains and 26 fields, with their numbers
    1. Engineering5917.5%
    2. Computer Science319.2%
    3. Physics and Astronomy185.3%
    4. Mathematics144.0%
    5. Environmental Science72.1%
    6. Earth and Planetary Sciences51.6%
    7. Materials Science20.5%
    8. Chemistry00.1%
    9. Chemical Engineering00.0%
    10. Energy00.0%
    1. Medicine7422.2%
    2. Health Professions247.3%
    3. Dentistry51.4%
    4. Nursing20.7%
    5. Veterinary00.1%
    1. Psychology247.2%
    2. Social Sciences236.9%
    3. Decision Sciences113.3%
    4. Arts and Humanities51.6%
    5. Economics, Econometrics and Finance20.7%
    6. Business, Management and Accounting20.6%
    1. Neuroscience113.2%
    2. Biochemistry, Genetics and Molecular Biology72.0%
    3. Agricultural and Biological Sciences51.4%
    4. Immunology and Microbiology41.0%
    5. Pharmacology, Toxicology and Pharmaceutics00.1%
All of science, and how each field's share has moved since 1950: the Science domain explorer

Which keywords describe research in Tonga?

By fractional works in 2022-now, weighted toward what it does more of than the world: Simulation, Modeling, Human Factors, Modelica, Object-Oriented Modeling, Automation, Nonlinear Dynamics and Trust.

▲ 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-now in the topics tagged with each word; colour is the word's share of this country'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. Simulation23▲ 27×8 topics
  2. Modeling19▲ 23×4 topics
  3. Human Factors19▲ 70×3 topics
  4. Modelica18▲ 1290×1 topic
  5. Object-Oriented Modeling18▲ 1290×1 topic
  6. Sustainability16▲ 1.91×19 topics
  7. Automation15▲ 65×1 topic
  8. Nonlinear Dynamics15▲ 21×4 topics
  9. Trust15▲ 17×1 topic
  10. Decision Making14▲ 14×2 topics
  11. Construction Safety12▲ 54×2 topics
  12. Chaotic Dynamics12▲ 859×1 topic
  13. Inertial Electrostatic Confinement Fusion12▲ 859×1 topic
  14. Algorithm12▲ 240×2 topics
  15. Interpolation11▲ 244×1 topic
  16. Mathematica11▲ 3901×1 topic
  17. Risk Perception11▲ 12×3 topics
  18. Occupational Safety10▲ 31×2 topics
  19. Safety Climate10▲ 33×2 topics
  20. Accident Prevention10▲ 42×2 topics
  21. Safety Culture10▲ 42×2 topics
  22. Safety Management9▲ 44×1 topic
  23. Workplace Safety9▲ 21×1 topic
  24. Motor Control8▲ 20×1 topic
  25. Sensorimotor Learning8▲ 126×1 topic
  26. Elderly8▲ 9.5×6 topics
  27. Complex Systems7▲ 21×2 topics
  28. Network Centric Warfare7▲ 564×1 topic
  29. Organizational Design7▲ 564×1 topic
  30. Parkinson's Disease7▲ 8.8×4 topics
  31. Thermal Insulation7▲ 77×2 topics
  32. Fall Risk7▲ 43×1 topic
  33. Fluid Mechanics7▲ 29×1 topic
  34. Gait Speed7▲ 43×1 topic
  35. Muscle Strength7▲ 18×2 topics
  36. Numerical Methods7▲ 24×1 topic
  37. Physical Performance7▲ 21×2 topics
  38. Soft Systems Methodology7▲ 80×1 topic
  39. System Dynamics7▲ 35×1 topic
  40. Complex Adaptive Systems6▲ 61×1 topic

Which research topics does Tonga publish the most in?

Its largest topics in 2022-now are Modeling and Simulation Systems, Human-Automation Interaction and Safety, Fusion and Plasma Physics Studies.

Modeling and Simulation …18Modeling and Simulation Systems: 18 fractional worksHuman-Automation Interac…15Human-Automation Interaction and Safety: 15 fractional worksFusion and Plasma Physics Studies: 12 fractional worksMathematical and Computational Methods: 11 fractional worksOccupational Health and …9Occupational Health and Safety Research: 9 fractional worksMotor Control and Adaptation: 8 fractional worksMilitary Strategy and Technology: 7 fractional worksHeat Transfer and Numerical Methods: 7 fractional worksBalance, Gait, and Falls Prevention: 7 fractional worksComplex Systems and Decision Making: 7 fractional worksMuscle activation and electromyography studies: 6 fractional worksSystems Engineering Methodologies and Applications: 6 fractional works
Computational Theory and MathematicsSocial PsychologyStatistical and Nonlinear PhysicsModeling and Simulation7 others

Area is fractional works in 2022-now; colour is the subfield each topic belongs to. Every tile is a topic page.

  1. 1 Modeling and Simulation Systems Computational Theory and Mathematics 18 works
  2. 2 Human-Automation Interaction and Safety Social Psychology 15 works
  3. 3 Fusion and Plasma Physics Studies Statistical and Nonlinear Physics 12 works
  4. 4 Mathematical and Computational Methods Modeling and Simulation 11 works
  5. 5 Occupational Health and Safety Research Radiological and Ultrasound Technology 9 works
  6. 6 Motor Control and Adaptation Cognitive Neuroscience 8 works
  7. 7 Military Strategy and Technology Control and Systems Engineering 7 works
  8. 8 Heat Transfer and Numerical Methods Computational Mechanics 7 works
  9. 9 Balance, Gait, and Falls Prevention Physical Therapy, Sports Therapy and Rehabilitation 7 works
  10. 10 Complex Systems and Decision Making Management Science and Operations Research 7 works
  11. 11 Muscle activation and electromyography studies Biomedical Engineering 6 works
  12. 12 Systems Engineering Methodologies and Applications Control and Systems Engineering 6 works

Which universities in Tonga lead research?

Ministry of Health rank highest in Tonga on research quality in 2022-now.

  1. 1Ministry of HealthGovernment institution · Nuku'alofa · #19,273 worldwide8.6% top 10% · 88 works

The track on each row is its top-10% rate; the tick is the average of all institutions, 10.0% (how it is set): teal above it, red below.

All ranked institutions in Tonga

Who are the top researchers in Tonga?

Taaniela Kula, Seu’ula Johansson-Fua and Tuikolongahau Halafihi rank highest among researchers based in Tonga.

  1. 1 Taaniela Kula #396,181 worldwide 500 citations · 48 works
  2. 2 Seu’ula Johansson-Fua #1,584,566 worldwide 134 citations · 20 works
  3. 3 Tuikolongahau Halafihi #1,954,502 worldwide 617 citations · 30 works
  4. 4 E. E. V. Collocott #2,752,098 worldwide 59 citations · 21 works
  5. 5 Clément Couteaux #2,776,762 worldwide 45 citations · 16 works
  6. 6 Toakase Fakakovikaetau #2,847,259 worldwide 319 citations · 16 works
  7. 7 Siola’a Malimali #3,384,999 worldwide 233 citations · 29 works
  8. 8 Karen D. Stone #3,822,586 worldwide 753 citations · 35 works
  9. 9 Seu'ula J. Fua #4,106,459 worldwide 138 citations · 27 works
  10. 10 Rochelle Harris #4,565,625 worldwide 16 citations · 24 works
Top researchers in Tonga

How open and international is Tonga's research?

65% of its research is openly available (world: 40%), and 45% is written with international co-authors (world: 18%).

openly available64.6%not open35.4%

World: 40% of research is openly available.

with international co-authors45.3%domestic only54.7%

World: 18% is written across borders.

How has Tonga's research grown?

Output in 2022-2025 was 22% higher than in 2018-2021.

still counting1990200020102020
grewheldshrank

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

Its share of all research

Growing output can still be a shrinking share: all of science grows. This is Tonga as a percentage of every work published that year, 0.00046% in 2024.

still counting0.00050%0.0010%0.0015%Tonga0.00065% in 202519801990200020102020

Fractional works of Tonga over all fractional works that year. How the balance of science has shifted.

How much of it reaches the world top 10%

Over the whole record, 8.7% of its 624 works since 1951 reached the world top 10% for their field and year.

still counting5%10%15%all institutions10.0% in 2025Tonga8.9% in 20252020

Of each year's output, the share that reached the world's 10% most cited for its field and year. Peak 13.5% in 2023.

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