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Archive · Tartu · Estonia

Tartu Observatory

In research, Tartu Observatory stands highest in Physical Sciences (#6,614 of 21,541 worldwide), Environmental Science (#3,484 of 6,208 worldwide) and Astronomy and Astrophysics (#862 of 1,146 worldwide), over all time. Relative to its size it is most specialised in Physics and Astronomy — Physics and Astronomy is 19.6× its share of world research.

kosmos.ut.eeROR OpenAlex
World rank, all time
#11,029
of 42,892
Rank in Estonia
#7
of 24
Research works
711
▼ 41% vs 2013–17
Citations
14k
19.1 per fractional work
Top-10% rate
14.7%
record average 16.5%
Open access
59%
world 28%

What is Tartu Observatory known for in research?

The fields where it stands highest, over all time, ranked among every institution above the floor in each field.

FieldWorld rankWhere that sitsTop-10% rateWorks
Physical SciencesDomain #6,614 of 21,541 18.1%660
Environmental ScienceField #3,484 of 6,208 30.8%127
Astronomy and AstrophysicsSubfield #862 of 1,146 15.0%270
Physics and AstronomyField #3,067 of 3,663 15.5%379

Each strip is that field’s whole ranked pool, with the notch where Tartu Observatory 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 Tartu Observatory specialise in?

Where its research is concentrated relative to its size: Physics and Astronomy takes 19.6× the share of its output that it takes of world research.

  1. Physics and AstronomyField · 20.5 works20×
← 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: 1.08× its world share, 2 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.32× its world share, 1 worksBiochemistry, Geneti…Chemical Engineering: 0.85× its world share, 0 worksChemical EngineeringChemistry: 1.37× its world share, 1 worksChemistryComputer Science: 0.17× its world share, 1 worksComputer ScienceEarth and Planetary Sciences: 4.97× its world share, 4 worksEarth and Planetary …Engineering: 0.69× its world share, 5 worksEngineeringEnvironmental Science: 4.81× its world share, 11 worksEnvironmental ScienceMaterials Science: 0.02× its world share, 0 worksMaterials ScienceMathematics: 0.30× its world share, 0 worksMathematicsPhysics and Astronomy: 19.61× its world share, 20 worksPhysics and AstronomyMedicine: 0.01× its world share, 0 worksMedicineDecision Sciences: 0.44× its world share, 0 worksDecision SciencesPsychology: 0.10× its world share, 0 worksPsychologySocial Sciences: 0.19× its world share, 1 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Physics and Astronomy, 19.6×. Every wedge is a field page.

Who are the top researchers at Tartu Observatory?

Ranked on the composite score, Tiit Nilson, Jan Písek and Andres Kuusk lead among researchers whose main affiliation is Tartu Observatory.

  1. 1 Tiit Nilson Estonia · #156,046 worldwide 389 citations · 26 works
  2. 2 Jan Písek Estonia · #163,131 worldwide 375 citations · 28 works
  3. 3 Andres Kuusk Estonia · #303,655 worldwide 253 citations · 26 works
  4. 4 U. Haud Estonia · #323,034 worldwide 240 citations · 15 works
  5. 5 Gert Hütsi Estonia · #381,523 worldwide 102 citations · 21 works
  6. 6 E. Saar Estonia · #458,920 worldwide 178 citations · 37 works
  7. 7 M. Gramann Estonia · #504,519 worldwide 90 citations · 24 works
  8. 8 J. Einasto Estonia · #626,313 worldwide 252 citations · 75 works
  9. 9 Quan Guo Estonia · #679,266 worldwide 75 citations · 20 works
  10. 10 Elmo Tempel Estonia · #766,180 worldwide 194 citations · 48 works
All ranked researchers at Tartu Observatory

Which keywords describe research at Tartu Observatory?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Biomass Estimation, Remote Sensing, Star Formation, Climate Change, Solar System Abundances, Terrestrial Planets, Climate and Accretion Disks.

▲ 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. Biomass Estimation6▲ 83×3 topics
  2. Climate Change5▲ 4.2×26 topics
  3. Remote Sensing5▲ 9.1×14 topics
  4. Star Formation5▲ 200×2 topics
  5. Machine Learning5▲ 3.0×8 topics
  6. Solar System Abundances3▲ 150×1 topic
  7. Terrestrial Planets3▲ 150×1 topic
  8. Accretion Disks3▲ 145×2 topics
  9. Climate3▲ 80×2 topics
  10. Magnetic Fields3▲ 105×2 topics
  11. Global Change3▲ 25×4 topics
  12. Phenology3▲ 103×1 topic
  13. Vegetation Monitoring3▲ 103×1 topic
  14. Aboveground Biomass3▲ 69×2 topics
  15. Black Holes3▲ 63×3 topics
  16. Dark Matter3▲ 51×3 topics
  17. Exoplanets3▲ 149×1 topic
  18. Stellar Astrophysics3▲ 149×1 topic
  19. Cosmology3▲ 86×2 topics
  20. Molecular Clouds3▲ 228×1 topic
  21. Protoplanetary Disks3▲ 228×1 topic
  22. Astronomical Instrumentation2▲ 188×1 topic
  23. Galaxies2▲ 176×1 topic
  24. Spectrograph2▲ 188×1 topic
  25. Stellar Populations2▲ 176×1 topic
  26. Eutrophication2▲ 42×3 topics
  27. Forest Carbon Stocks2▲ 70×1 topic
  28. Lidar Remote Sensing2▲ 70×1 topic
  29. Harmful Algal Blooms2▲ 52×2 topics
  30. Global Warming2▲ 9.5×4 topics
  31. Mars2▲ 118×1 topic
  32. Martian Surface2▲ 118×1 topic
  33. Water Quality2▲ 9.8×5 topics
  34. Allometric Models2▲ 73×2 topics
  35. Supernovae2▲ 40×2 topics
  36. Dissolved Organic Matter1▲ 66×1 topic
  37. Oceanic Carbon Cycle1▲ 66×1 topic
  38. Climate Change Impact1▲ 12×2 topics
  39. Coronal Mass Ejections1▲ 68×1 topic
  40. Solar Wind1▲ 28×2 topics

Which research topics does Tartu Observatory publish most on?

By volume in 2022–2025: Astro and Planetary Science, Remote Sensing in Agriculture, Stellar, planetary, and galactic studies and Astrophysics and Star Formation Studies.

Astro and Planetary Scie…3Astro and Planetary Science: 3 fractional worksRemote Sensing in Agricu…3Remote Sensing in Agriculture: 3 fractional worksStellar, planetary, and …3Stellar, planetary, and galactic studies: 3 fractional worksAstrophysics and Star Fo…3Astrophysics and Star Formation Studies: 3 fractional worksGalaxies: Formation, Evolution, Phenomena: 2 fractional worksAstronomy and Astrophysical Research: 2 fractional worksRemote Sensing and LiDAR…2Remote Sensing and LiDAR Applications: 2 fractional worksPlanetary Science and Exploration: 2 fractional worksMarine and coastal ecosystems: 1 fractional worksSolar and Space Plasma Dynamics: 1 fractional works
Astronomy and AstrophysicsEcologyInstrumentationEnvironmental Engineering1 others

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

  1. 1 Astro and Planetary Science Astronomy and Astrophysics 3 works
  2. 2 Remote Sensing in Agriculture Ecology 3 works
  3. 3 Stellar, planetary, and galactic studies Astronomy and Astrophysics 3 works
  4. 4 Astrophysics and Star Formation Studies Astronomy and Astrophysics 3 works
  5. 5 Galaxies: Formation, Evolution, Phenomena Astronomy and Astrophysics 2 works
  6. 6 Astronomy and Astrophysical Research Instrumentation 2 works
  7. 7 Remote Sensing and LiDAR Applications Environmental Engineering 2 works
  8. 8 Planetary Science and Exploration Astronomy and Astrophysics 2 works
  9. 9 Marine and coastal ecosystems Oceanography 1 works
  10. 10 Solar and Space Plasma Dynamics Astronomy and Astrophysics 1 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 available59.0%not open41.0%

World: 28% of research is openly available.

with international co-authors35.1%domestic only64.9%

World: 19% is written across borders.

How has Tartu Observatory's research output changed?

Output in 2018–2022 was 41% 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 Tartu

All research institutions in Tartu

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.