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Research facility · Athens · Greece

National Observatory of Athens

In research, National Observatory of Athens stands highest in Physical Sciences (#2,705 of 12,888 worldwide), Environmental Science (#1,452 of 3,551 worldwide) and Earth and Planetary Sciences (#631 of 1,209 worldwide), 2022–2025. Relative to its size it is most specialised in Astronomy and Astrophysics, Atmospheric Science and Global and Planetary Change — Astronomy and Astrophysics is 27.2× its share of world research.

noa.grROR OpenAlex
World rank, 2022–2025
#4,666
of 28,054 · #4,365 all time
Rank in Greece
#25
of 124
Research works
2.1k
▲ 36% vs 2013–17
Citations
54k
25.1 per fractional work
Top-10% rate
26.4%
record average 16.5%
Open access
55%
world 28%

What is National Observatory of Athens 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 #2,705 of 12,888 25.8%342 #2707
Environmental ScienceField #1,452 of 3,551 23.0%127 #1521
Earth and Planetary SciencesField #631 of 1,209 23.4%80 #646
Global and Planetary ChangeSubfield #477 of 535 18.6%63 #704
Physics and AstronomyField #1,567 of 1,646 33.9%74 #2905

Each strip is that field’s whole ranked pool, with the notch where National Observatory of Athens 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).

Which of those standings moved

The same fields on both windows: where it stood over the whole record, and where it stands in 2022–2025. The distance is the story, and it is the one thing the two rank columns above cannot show.

  1. Physical Sciences#2,707 #2,705
  2. Environmental Science#1,521 #1,452
  3. Earth and Planetary Sciences#646 #631
  4. Global and Planetary Change#704 #477
  5. Physics and Astronomy#2,905 #1,567
all time2022–2025, better2022–2025, worse

A dot further right is a better standing. Fields it was not ranked in over the whole record are left out.

What does National Observatory of Athens specialise in?

Where its research is concentrated relative to its size: Astronomy and Astrophysics takes 27.2× the share of its output that it takes of world research.

  1. Astronomy and AstrophysicsSubfield · 54.1 works27×
  2. Atmospheric ScienceSubfield · 41.2 works24×
  3. Global and Planetary ChangeSubfield · 62.8 works22×
  4. GeophysicsSubfield · 28.8 works22×
  5. Earth and Planetary SciencesField · 79.6 works13×
  6. Environmental EngineeringSubfield · 21.4 works10×
← 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: 0.52× its world share, 10 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.19× its world share, 4 worksBiochemistry, Geneti…Neuroscience: 0.12× its world share, 1 worksNeuroscienceChemistry: 0.20× its world share, 1 worksChemistryComputer Science: 0.69× its world share, 20 worksComputer ScienceEarth and Planetary Sciences: 13.28× its world share, 80 worksEarth and Planetary …Energy: 1.36× its world share, 5 worksEnergyEngineering: 0.57× its world share, 33 worksEngineeringEnvironmental Science: 6.70× its world share, 127 worksEnvironmental ScienceMaterials Science: 0.03× its world share, 0 worksMaterials ScienceMathematics: 0.24× its world share, 1 worksMathematicsPhysics and Astronomy: 8.72× its world share, 74 worksPhysics and AstronomyDentistry: 0.06× its world share, 0 worksDentistryHealth Professions: 0.26× its world share, 3 worksHealth ProfessionsMedicine: 0.06× its world share, 4 worksMedicineNursing: 0.12× its world share, 0 worksNursingArts and Humanities: 0.30× its world share, 3 worksArts and HumanitiesBusiness, Management and Accounting: 0.09× its world share, 1 worksBusiness, Management…Decision Sciences: 0.55× its world share, 2 worksDecision SciencesEconomics, Econometrics and Finance: 0.36× its world share, 3 worksEconomics, Econometr…Psychology: 0.11× its world share, 1 worksPsychologySocial Sciences: 0.18× its world share, 9 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Earth and Planetary Sciences, 13.3×. Every wedge is a field page.

Who are the top researchers at National Observatory of Athens?

Ranked on the composite score, Michael Taylor, Constantinos A. Balaras and Emmanuel N. Saridakis lead among researchers whose main affiliation is National Observatory of Athens.

  1. 1 Michael Taylor Greece · #45,573 worldwide 357 citations · 46 works
  2. 2 Constantinos A. Balaras Greece · #151,040 worldwide 277 citations · 33 works
  3. 3 Emmanuel N. Saridakis Greece · #170,802 worldwide 865 citations · 96 works
  4. 4 A. Georgakakis Greece · #179,925 worldwide 597 citations · 68 works
  5. 5 Dimitris G. Kaskaoutis Greece · #207,231 worldwide 228 citations · 39 works
  6. 6 A. Retalis Greece · #225,223 worldwide 214 citations · 31 works
  7. 7 Ioanna Tsagouri Greece · #253,480 worldwide 85 citations · 31 works
  8. 8 P. Gavras Greece · #300,702 worldwide 232 citations · 31 works
  9. 9 Elena G. Dascalaki Greece · #343,356 worldwide 189 citations · 19 works
  10. 10 Athanasios A. Rontogiannis Greece · #354,629 worldwide 127 citations · 28 works
All ranked researchers at National Observatory of Athens

Which keywords describe research at National Observatory of Athens?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Climate Change, Remote Sensing, Air Quality, Global Warming, Hydrological Cycle, Hydrological Modeling, Solar Wind and Climate.

▲ 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 Change82▲ 8.0×49 topics
  2. Remote Sensing71▲ 15×28 topics
  3. Air Quality32▲ 46×6 topics
  4. Global Warming29▲ 19×12 topics
  5. Machine Learning29▲ 2.3×23 topics
  6. Hydrological Cycle24▲ 66×2 topics
  7. Hydrological Modeling19▲ 21×5 topics
  8. Climate18▲ 53×2 topics
  9. Solar Wind18▲ 50×2 topics
  10. Satellite Observations18▲ 47×3 topics
  11. Chemical Composition16▲ 43×2 topics
  12. Atmospheric Aerosols16▲ 74×1 topic
  13. Black Carbon16▲ 74×1 topic
  14. Artificial Neural Networks15▲ 8.2×4 topics
  15. Mortality15▲ 6.6×2 topics
  16. Thermal Comfort15▲ 29×2 topics
  17. Aerosols14▲ 52×1 topic
  18. Atmospheric Dust14▲ 145×1 topic
  19. Black Holes14▲ 37×3 topics
  20. Forecasting13▲ 18×4 topics
  21. Particulate Matter13▲ 23×2 topics
  22. Geodetic Measurements13▲ 31×2 topics
  23. Satellite Imagery13▲ 25×4 topics
  24. Greenhouse Gas Emissions12▲ 12×6 topics
  25. Health Effects12▲ 5.1×10 topics
  26. Extreme Events12▲ 35×2 topics
  27. Supernovae11▲ 36×2 topics
  28. Subduction11▲ 38×2 topics
  29. Ocean Circulation11▲ 22×3 topics
  30. Soil Properties11▲ 16×4 topics
  31. Ecosystem Resilience10▲ 19×3 topics
  32. Climate Modeling10▲ 38×1 topic
  33. Precipitation Extremes10▲ 38×1 topic
  34. Boundary Layer10▲ 22×2 topics
  35. Urban Heat Island10▲ 28×2 topics
  36. Land Use Change10▲ 8.7×6 topics
  37. Earthquakes10▲ 46×1 topic
  38. Plate Boundaries10▲ 46×1 topic
  39. Probabilistic Forecasting10▲ 13×3 topics
  40. Risk Perception10▲ 9.4×2 topics

Which research topics does National Observatory of Athens publish most on?

By volume in 2022–2025: Atmospheric chemistry and aerosols, Atmospheric aerosols and clouds, Climate variability and models and earthquake and tectonic studies.

Atmospheric chemistry an…16Atmospheric chemistry and aerosols: 16 fractional worksAtmospheric aerosols and…14Atmospheric aerosols and clouds: 14 fractional worksClimate variability and models: 10 fractional worksearthquake and tectonic studies: 10 fractional worksSolar and Space Plasma Dynamics: 9 fractional worksFire effects on ecosystems: 9 fractional worksUrban Heat Island Mitigation: 9 fractional worksFlood Risk Assessment an…9Flood Risk Assessment and Management: 9 fractional worksAir Quality and Health Impacts: 9 fractional worksMeteorological Phenomena and Simulations: 9 fractional works
Atmospheric ScienceGlobal and Planetary ChangeGeophysicsAstronomy and Astrophysics2 others

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

  1. 1 Atmospheric chemistry and aerosols Atmospheric Science 16 works
  2. 2 Atmospheric aerosols and clouds Global and Planetary Change 14 works
  3. 3 Climate variability and models Global and Planetary Change 10 works
  4. 4 earthquake and tectonic studies Geophysics 10 works
  5. 5 Solar and Space Plasma Dynamics Astronomy and Astrophysics 9 works
  6. 6 Fire effects on ecosystems Global and Planetary Change 9 works
  7. 7 Urban Heat Island Mitigation Environmental Engineering 9 works
  8. 8 Flood Risk Assessment and Management Global and Planetary Change 9 works
  9. 9 Air Quality and Health Impacts Health, Toxicology and Mutagenesis 9 works
  10. 10 Meteorological Phenomena and Simulations Atmospheric Science 9 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 available55.2%not open44.8%

World: 28% of research is openly available.

with international co-authors42.9%domestic only57.1%

World: 19% is written across borders.

How has National Observatory of Athens's research output changed?

Output in 2018–2022 was 36% higher 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 Athens

All research institutions in Athens

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.