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Research facility · Algiers · Algeria

Centre de Recherche en Astronomie Astrophysique et Géophysique

In research, Centre de Recherche en Astronomie Astrophysique et Géophysique stands highest in Physical Sciences (#12,230 of 12,888 worldwide), 2022–2025. Relative to its size it is most specialised in Geophysics and Earth and Planetary Sciences — Geophysics is 142.8× its share of world research.

craag.dz/pesentation.phpROR OpenAlex
World rank, 2022–2025
#26,050
of 28,054 · #32,504 all time
Rank in Algeria
#77
of 79
Research works
390
▲ 33% vs 2013–17
Citations
4.3k
11.0 per fractional work
Top-10% rate
11.0%
record average 16.5%
Open access
34%
world 28%

What is Centre de Recherche en Astronomie Astrophysique et Géophysique 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 #12,230 of 12,888 13.0%73 #17267

Each strip is that field’s whole ranked pool, with the notch where Centre de Recherche en Astronomie Astrophysique et Géophysique 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 Centre de Recherche en Astronomie Astrophysique et Géophysique specialise in?

Where its research is concentrated relative to its size: Geophysics takes 142.8× the share of its output that it takes of world research.

  1. GeophysicsSubfield · 45.3 works143×
  2. Earth and Planetary SciencesField · 48.1 works34×
← 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: 0.32× its world share, 1 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.41× its world share, 2 worksBiochemistry, Geneti…Chemistry: 0.06× its world share, 0 worksChemistryComputer Science: 0.32× its world share, 2 worksComputer ScienceEarth and Planetary Sciences: 33.82× its world share, 48 worksEarth and Planetary …Energy: 1.68× its world share, 1 worksEnergyEngineering: 0.54× its world share, 7 worksEngineeringEnvironmental Science: 0.76× its world share, 3 worksEnvironmental ScienceMaterials Science: 0.07× its world share, 0 worksMaterials ScienceMathematics: 0.21× its world share, 0 worksMathematicsPhysics and Astronomy: 4.92× its world share, 10 worksPhysics and AstronomyHealth Professions: 0.27× its world share, 1 worksHealth ProfessionsMedicine: 0.42× its world share, 7 worksMedicineArts and Humanities: 1.45× its world share, 4 worksArts and HumanitiesEconomics, Econometrics and Finance: 0.21× its world share, 0 worksEconomics, Econometr…Psychology: 0.18× its world share, 0 worksPsychologySocial Sciences: 0.14× 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, 33.8×. Every wedge is a field page.

Who are the top researchers at Centre de Recherche en Astronomie Astrophysique et Géophysique?

Ranked on the composite score, Saïd Maouche, Hamou Djellit and Mohamed Derder lead among researchers whose main affiliation is Centre de Recherche en Astronomie Astrophysique et Géophysique.

  1. 1 Saïd Maouche Algeria · #1,029,817 worldwide 81 citations · 27 works
  2. 2 Hamou Djellit Algeria · #1,220,752 worldwide 55 citations · 16 works
  3. 3 Mohamed Derder Algeria · #1,528,295 worldwide 32 citations · 15 works
  4. 4 Abdeslam Abtout Algeria · #1,553,513 worldwide 13 citations · 15 works
All ranked researchers at Centre de Recherche en Astronomie Astrophysique et Géophysique

Which keywords describe research at Centre de Recherche en Astronomie Astrophysique et Géophysique?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Subduction, Geodetic Measurements, Tectonic Evolution, Earthquakes, Plate Boundaries, Mediterranean, geodynamics and Western Mediterranean.

▲ 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. Subduction29▲ 440×3 topics
  2. Geodetic Measurements16▲ 157×2 topics
  3. Tectonic Evolution15▲ 747×2 topics
  4. Earthquakes14▲ 281×1 topic
  5. Plate Boundaries14▲ 281×1 topic
  6. Mediterranean13▲ 158×2 topics
  7. Western Mediterranean13▲ 1594×1 topic
  8. geodynamics13▲ 1594×1 topic
  9. Tomography6▲ 34×3 topics
  10. Plate Tectonics5▲ 33×3 topics
  11. Seismic Noise4▲ 95×1 topic
  12. Surface Wave4▲ 95×1 topic
  13. Remote Sensing4▲ 3.6×10 topics
  14. Ionospheric Anomalies4▲ 101×1 topic
  15. Seismic Electromagnetics4▲ 101×1 topic
  16. Tectonics3▲ 31×2 topics
  17. Climate Change3▲ 1.29×11 topics
  18. Electrical Resistivity Tomography3▲ 126×1 topic
  19. Magnetotelluric Imaging3▲ 126×1 topic
  20. Geochronology3▲ 48×1 topic
  21. Zircon3▲ 48×1 topic
  22. Risk Assessment2▲ 4.1×2 topics
  23. Hazard2▲ 37×1 topic
  24. Landslide2▲ 37×1 topic
  25. Cultural Impact2▲ 43×2 topics
  26. Solar Wind2▲ 25×2 topics
  27. Ground Motion2▲ 53×1 topic
  28. Radio Astronomy2▲ 82×1 topic
  29. Seismic Engineering2▲ 53×1 topic
  30. Spectroscopy2▲ 11×3 topics
  31. Transits of Venus2▲ 192×1 topic
  32. Andean Geodynamics2▲ 242×1 topic
  33. Caribbean Plate Boundary2▲ 242×1 topic
  34. Hydrological Modeling2▲ 7.6×3 topics
  35. Crystal Structure Prediction2▲ 35×1 topic
  36. Mantle Dynamics2▲ 35×1 topic
  37. Solar System Abundances1▲ 30×1 topic
  38. Terrestrial Planets1▲ 30×1 topic
  39. Nucleosynthesis1▲ 28×3 topics
  40. Coronal Mass Ejections1▲ 34×1 topic

Which research topics does Centre de Recherche en Astronomie Astrophysique et Géophysique publish most on?

By volume in 2022–2025: earthquake and tectonic studies, Geological and Geophysical Studies Worldwide, Seismic Waves and Analysis and Earthquake Detection and Analysis.

earthquake and tectonic …14earthquake and tectonic studies: 14 fractional worksGeological and Geophysic…13Geological and Geophysical Studies Worldwide: 13 fractional worksSeismic Waves and Analysis: 4 fractional worksEarthquake Detection and Analysis: 4 fractional worksGeophysical and Geoelect…3Geophysical and Geoelectrical Methods: 3 fractional worksGeological and Geochemical Analysis: 3 fractional worksLandslides and related hazards: 2 fractional worksHistory and Developments in Astronomy: 2 fractional worksSeismic Performance and Analysis: 2 fractional worksGeological and Tectonic Studies in Latin America: 2 fractional works
GeophysicsManagement, Monitoring, Policy and LawAstronomy and AstrophysicsCivil and Structural Engineering

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

  1. 1 earthquake and tectonic studies Geophysics 14 works
  2. 2 Geological and Geophysical Studies Worldwide Geophysics 13 works
  3. 3 Seismic Waves and Analysis Geophysics 4 works
  4. 4 Earthquake Detection and Analysis Geophysics 4 works
  5. 5 Geophysical and Geoelectrical Methods Geophysics 3 works
  6. 6 Geological and Geochemical Analysis Geophysics 3 works
  7. 7 Landslides and related hazards Management, Monitoring, Policy and Law 2 works
  8. 8 History and Developments in Astronomy Astronomy and Astrophysics 2 works
  9. 9 Seismic Performance and Analysis Civil and Structural Engineering 2 works
  10. 10 Geological and Tectonic Studies in Latin America Geophysics 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 available33.9%not open66.1%

World: 28% of research is openly available.

with international co-authors60.3%domestic only39.7%

World: 19% is written across borders.

How has Centre de Recherche en Astronomie Astrophysique et Géophysique's research output changed?

Output in 2018–2022 was 33% 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 Algiers

All research institutions in Algiers

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.