Science Explorer Interactive view Map
Research facility · Sofia · Bulgaria

Space Research and Technology Institute

In research, Space Research and Technology Institute stands highest in Physical Sciences (#10,884 of 12,888 worldwide), 2022–2025. Relative to its size it is most specialised in Astronomy and Astrophysics and Earth and Planetary Sciences — Astronomy and Astrophysics is 25.1× its share of world research.

space.bas.bgROR OpenAlex
World rank, 2022–2025
#21,834
of 28,054 · #29,540 all time
Rank in Bulgaria
#64
of 92
Research works
523
▲ 95% vs 2013–17
Citations
3k
5.6 per fractional work
Top-10% rate
4.9%
record average 16.5%
Open access
51%
world 28%

What is Space Research and Technology 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 #10,884 of 12,888 4.7%141 #15752

Each strip is that field’s whole ranked pool, with the notch where Space Research and Technology 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 Space Research and Technology Institute specialise in?

Where its research is concentrated relative to its size: Astronomy and Astrophysics takes 25.1× the share of its output that it takes of world research.

  1. Astronomy and AstrophysicsSubfield · 20.8 works25×
  2. Earth and Planetary SciencesField · 29.5 works12×
← 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: 0.84× its world share, 6 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.24× its world share, 2 worksBiochemistry, Geneti…Chemical Engineering: 0.20× its world share, 0 worksChemical EngineeringChemistry: 0.45× its world share, 1 worksChemistryComputer Science: 0.79× its world share, 10 worksComputer ScienceEarth and Planetary Sciences: 11.77× its world share, 30 worksEarth and Planetary …Energy: 0.42× its world share, 1 worksEnergyEngineering: 1.00× its world share, 24 worksEngineeringEnvironmental Science: 5.38× its world share, 43 worksEnvironmental ScienceMaterials Science: 0.80× its world share, 4 worksMaterials ScienceMathematics: 2.56× its world share, 5 worksMathematicsPhysics and Astronomy: 6.65× its world share, 24 worksPhysics and AstronomyHealth Professions: 0.05× its world share, 0 worksHealth ProfessionsMedicine: 0.13× its world share, 4 worksMedicineArts and Humanities: 0.27× its world share, 1 worksArts and HumanitiesBusiness, Management and Accounting: 0.13× its world share, 1 worksBusiness, Management…Decision Sciences: 1.19× its world share, 2 worksDecision SciencesEconomics, Econometrics and Finance: 0.22× its world share, 1 worksEconomics, Econometr…Psychology: 0.03× its world share, 0 worksPsychologySocial Sciences: 0.08× its world share, 2 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Earth and Planetary Sciences, 11.8×. Every wedge is a field page.

Who are the top researchers at Space Research and Technology Institute?

Ranked on the composite score, Hristo Nikolov, Denitsa Borisova and Lachezar Filchev lead among researchers whose main affiliation is Space Research and Technology Institute.

  1. 1 Hristo Nikolov Bulgaria · #929,783 worldwide 26 citations · 26 works
  2. 2 Denitsa Borisova Bulgaria · #1,578,810 worldwide 6 citations · 25 works
  3. 3 Lachezar Filchev Bulgaria · #1,605,271 worldwide 6 citations · 20 works
  4. 4 R. Kancheva Bulgaria · #1,632,816 worldwide 5 citations · 15 works
All ranked researchers at Space Research and Technology Institute

Which keywords describe research at Space Research and Technology Institute?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Remote Sensing, Climate Change, Machine Learning, Biomass Estimation, Holocene, Sea Level, Mediterranean and Solar Wind.

▲ 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. Remote Sensing29▲ 15×24 topics
  2. Climate Change22▲ 5.1×26 topics
  3. Machine Learning19▲ 3.7×13 topics
  4. Biomass Estimation11▲ 45×3 topics
  5. COVID-1910▲ 4.3×5 topics
  6. Holocene9▲ 50×3 topics
  7. Sea Level9▲ 59×2 topics
  8. Mediterranean9▲ 60×2 topics
  9. Solar Wind9▲ 59×2 topics
  10. Black Sea9▲ 136×1 topic
  11. paleoceanography9▲ 181×1 topic
  12. Renewable Energy8▲ 3.4×8 topics
  13. Climate7▲ 52×2 topics
  14. Global Change7▲ 17×2 topics
  15. Phenology7▲ 68×1 topic
  16. Vegetation Monitoring7▲ 68×1 topic
  17. Hydrology6▲ 30×2 topics
  18. Air Quality6▲ 19×3 topics
  19. Particulate Matter6▲ 23×2 topics
  20. Coronal Mass Ejections5▲ 84×1 topic
  21. Solar Dynamics Observatory5▲ 84×1 topic
  22. Hyperspectral Imaging5▲ 11×4 topics
  23. Sea Level Rise5▲ 24×3 topics
  24. Modeling5▲ 11×4 topics
  25. Air Pollution4▲ 21×3 topics
  26. Terrestrial Laser Scanning4▲ 22×2 topics
  27. Aboveground Biomass4▲ 30×2 topics
  28. Forecasting4▲ 14×2 topics
  29. Land Use Change4▲ 8.7×3 topics
  30. Urban Heat Island4▲ 27×2 topics
  31. Forest Carbon Stocks4▲ 41×1 topic
  32. Glacier4▲ 59×1 topic
  33. Lidar Remote Sensing4▲ 41×1 topic
  34. Water Availability4▲ 59×1 topic
  35. Carbon Emissions4▲ 22×1 topic
  36. Fine Particulate Air Pollution4▲ 26×1 topic
  37. Global Burden of Disease4▲ 9.7×1 topic
  38. Ionosphere4▲ 43×1 topic
  39. Magnetosphere4▲ 43×1 topic
  40. lockdown4▲ 122×1 topic

Which research topics does Space Research and Technology Institute publish most on?

By volume in 2022–2025: Marine and environmental studies, Remote Sensing in Agriculture, Solar and Space Plasma Dynamics and Remote Sensing and LiDAR Applications.

Marine and environmental studies: 9 fractional worksRemote Sensing in Agriculture: 7 fractional worksSolar and Space Plasma Dynamics: 5 fractional worksRemote Sensing and LiDAR Applications: 4 fractional worksCryospheric studies and observations: 4 fractional worksAir Quality and Health Impacts: 4 fractional worksCOVID-19 impact on air q…4COVID-19 impact on air quality: 4 fractional worksIonosphere and magnetosphere dynamics: 4 fractional worksCOVID-19 epidemiological studies: 4 fractional worksAstro and Planetary Scie…3Astro and Planetary Science: 3 fractional works
OceanographyEcologyAstronomy and AstrophysicsEnvironmental Engineering4 others

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

  1. 1 Marine and environmental studies Oceanography 9 works
  2. 2 Remote Sensing in Agriculture Ecology 7 works
  3. 3 Solar and Space Plasma Dynamics Astronomy and Astrophysics 5 works
  4. 4 Remote Sensing and LiDAR Applications Environmental Engineering 4 works
  5. 5 Cryospheric studies and observations Atmospheric Science 4 works
  6. 6 Air Quality and Health Impacts Health, Toxicology and Mutagenesis 4 works
  7. 7 COVID-19 impact on air quality Global and Planetary Change 4 works
  8. 8 Ionosphere and magnetosphere dynamics Astronomy and Astrophysics 4 works
  9. 9 COVID-19 epidemiological studies Modeling and Simulation 4 works
  10. 10 Astro and Planetary Science Astronomy and Astrophysics 3 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 available51.4%not open48.6%

World: 28% of research is openly available.

with international co-authors22.6%domestic only77.4%

World: 19% is written across borders.

How has Space Research and Technology Institute's research output changed?

Output in 2018–2022 was 95% 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 Sofia

All research institutions in Sofia

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.