Chad
- World rank, 2022-now
- #168
- #171 all time
- Works, 2022-now
- 545
- fractional
- Top-10% rate
- 4.2%
- share of its work among the world's most cited
- Open access
- 79%
- of its works free to read
Strongest relative focus: Forestry, Ecology, Evolution, Behavior and Systematics, Geochemistry and Petrology.
Greenland
- World rank, 2022-now
- #171
- #138 all time
- Works, 2022-now
- 223
- fractional
- Top-10% rate
- 9.1%
- share of its work among the world's most cited
- Open access
- 51%
- of its works free to read
Strongest relative focus: Atmospheric Science, Ecology, Oceanography.
Who leads, measure by measure?
Chad leads on 4 of 9 measures: research quality, output, open access and growth. Greenland leads on 4 of 9 measures: excellence for its fields, top-10% rate, citations per work and international co-authorship. The two are level on institutions in the world top 100.
- #168Research qualityworld rank of 189 countries, 2022-now#171
- 0.75×Excellence for its fieldsits top-10% rate against what its topics predict; 1.00× is as expected0.94×
- 545Outputfractional works, 2022-now223
- 4.2%Top-10% rateshare of its works among the world's most cited9.1%
- 4.6Citations per workall time, per fractional work20.0
- 0World top 100institutions it holds among the world's best 1000
- 79%Open accessof its works free to read, all time51%
- 47%Internationalof its works written with co-authors abroad, all time61%
- +104%Growthworks in 2022-25 against 2018-21; half a bar is no change+3%
A rank is drawn as its standing: the longer the bar, the nearer the top. Anything else is drawn against the larger of the two, and two values a hair apart are called level. Quality, excellence and the top-10% rate are explained in the methodology.
What is each known for?
The keywords that describe each side's research, by fractional works in 2022-now and weighted toward what it does more of than the world.
Chad
- Liver Disease
- Community Health Workers
- Antiviral Therapy
- Water Sanitation Hygiene
- Maternal Mortality
- Vaccine
- Indigenous Fruits
- Agroforestry
- Biodiversity Conservation
- Diabetes
- Nutritional Value
- Remote Sensing
- Genetic Diversity
- Public Health
- Renewable Energy
- Multifunctionality
- Agroecology
- Diversity
- Smallholder Farmers
- Climate Change
- Epidemiology
- Sustainability
- Adaptation
- Livestock Farming
- Agricultural Development
- Work Organization
- Immune Response
- Treatment
- Sustainable Agriculture
- Antioxidant
- Climate Resilience
- Global Burden
- Governance
- Health Benefits
- Tree Domestication
- Global Burden of Disease
- Maternal and Child Undernutrition
- GIS
- Antiretroviral Therapy
- Institutional Quality
All 40 words, with their numbers
- Epidemiology62▲ 2.3×83 topics
- Climate Change50▲ 2.8×47 topics
- Sustainability43▲ 2.6×36 topics
- Smallholder Farmers39▲ 28×6 topics
- Adaptation31▲ 16×5 topics
- Diversity26▲ 22×4 topics
- Livestock Farming26▲ 65×2 topics
- Agroecology26▲ 27×2 topics
- Agricultural Development25▲ 25×2 topics
- Multifunctionality25▲ 81×1 topic
- Work Organization25▲ 97×1 topic
- Renewable Energy20▲ 2.0×22 topics
- Immune Response19▲ 5.0×13 topics
- Public Health19▲ 1.92×34 topics
- Treatment19▲ 2.3×27 topics
- Genetic Diversity19▲ 6.4×15 topics
- Sustainable Agriculture18▲ 8.5×9 topics
- Remote Sensing17▲ 2.1×15 topics
- Antioxidant16▲ 3.5×26 topics
- Nutritional Value15▲ 20×2 topics
- Climate Resilience15▲ 38×3 topics
- Diabetes15▲ 4.4×11 topics
- Global Burden15▲ 4.1×12 topics
- Biodiversity Conservation14▲ 5.4×8 topics
- Governance13▲ 5.9×7 topics
- Agroforestry12▲ 27×4 topics
- Health Benefits12▲ 5.3×10 topics
- Indigenous Fruits12▲ 77×1 topic
- Tree Domestication12▲ 77×1 topic
- Vaccine12▲ 4.3×9 topics
- Global Burden of Disease10▲ 6.3×2 topics
- Maternal Mortality10▲ 6.9×5 topics
- Maternal and Child Undernutrition10▲ 19×1 topic
- Water Sanitation Hygiene10▲ 19×1 topic
- GIS10▲ 19×3 topics
- Antiviral Therapy9▲ 14×3 topics
- Antiretroviral Therapy9▲ 7.9×6 topics
- Community Health Workers9▲ 14×2 topics
- Institutional Quality9▲ 12×2 topics
- Liver Disease8▲ 14×2 topics
Greenland
- Methane Emissions
- Marine Biodiversity
- Habitat Selection
- Biogeography
- Permafrost
- Invasive Species
- Ecosystem Management
- Northern Sea Route
- Hydrology
- Governance
- Sea Ice
- Fisheries Sustainability
- Anthropogenic Noise
- Acoustic Communication
- Sustainability
- Remote Sensing
- Traditional Knowledge
- Nutrition Transition
- Vulnerability
- Arctic
- Climate Change
- Food Security
- Ecological Knowledge
- Arctic Indigenous Peoples
- Population Dynamics
- Conservation
- Predator-Prey Interactions
- Ocean Circulation
- Marine Mammals
- Decline
- Trophic Cascades
- Geopolitics
- International Relations
- Shipping
- Marine Fisheries
- Health Effects
- Health Equity
- Social Sciences
- Benthic Communities
- Decolonization
All 40 words, with their numbers
- Climate Change82▲ 12×43 topics
- Arctic23▲ 79×4 topics
- Food Security21▲ 15×3 topics
- Vulnerability19▲ 31×3 topics
- Ecological Knowledge19▲ 168×2 topics
- Nutrition Transition18▲ 219×2 topics
- Arctic Indigenous Peoples18▲ 403×1 topic
- Traditional Knowledge18▲ 166×1 topic
- Population Dynamics17▲ 25×6 topics
- Remote Sensing16▲ 5.0×12 topics
- Conservation14▲ 13×12 topics
- Sustainability12▲ 1.88×17 topics
- Predator-Prey Interactions12▲ 57×2 topics
- Acoustic Communication11▲ 84×2 topics
- Ocean Circulation11▲ 31×3 topics
- Anthropogenic Noise11▲ 147×1 topic
- Marine Mammals11▲ 147×1 topic
- Fisheries Sustainability10▲ 46×2 topics
- Decline10▲ 144×1 topic
- Sea Ice10▲ 144×1 topic
- Trophic Cascades9▲ 39×2 topics
- Governance8▲ 9.3×3 topics
- Geopolitics8▲ 19×2 topics
- Hydrology8▲ 22×3 topics
- International Relations8▲ 12×2 topics
- Northern Sea Route7▲ 108×1 topic
- Shipping7▲ 57×1 topic
- Ecosystem Management7▲ 45×1 topic
- Marine Fisheries7▲ 66×1 topic
- Invasive Species7▲ 6.0×11 topics
- Health Effects6▲ 4.1×14 topics
- Permafrost6▲ 51×2 topics
- Health Equity5▲ 6.5×4 topics
- Biogeography5▲ 6.5×7 topics
- Social Sciences4▲ 12×2 topics
- Habitat Selection4▲ 22×2 topics
- Benthic Communities4▲ 26×2 topics
- Marine Biodiversity4▲ 26×2 topics
- Decolonization4▲ 19×3 topics
- Methane Emissions4▲ 30×2 topics
Size is fractional works in the topics tagged with each word; colour is the word's share of the side's work against its share of the world's. Each word links to the topic it comes from most.
How has their output grown?
Chad has out-published Greenland every year since 2017, when it overtook it.
Fractional works per year.
Their share of all research
Growing output can still be a shrinking share, because all of science grows. Each line is a side as a percentage of every work published that year.
Fractional works over all fractional works that year. How the balance of science has shifted.
How much of it reaches the world top 10%
The share of each side's works, year by year, that reached the world's 10% most cited for their field and year. The average of all institutions is 10.0% (why not 10%).
A year with under 1% of the side's peak output is left out: a rate over a handful of papers says nothing. The latest years are still being cited.
Who holds more of the world's best institutions?
A country's average quality and the number of institutions it holds at the very top can disagree, and both are worth knowing. The counts are nested: an institution in the top 50 is also in the top 100.
- 0In the world top 500
- 0In the top 1000
- 0In the top 5000
- 0In the top 1,0000
- #51Elite capacityrank among 204 countries#51
Institutions ranked on research quality, 2022-now. Elite capacity counts a country's institutions by their worldwide rank, weighted so a place at #1 counts for more than one at #480.
Which publishes more research, Chad or Greenland?
Chad publishes 2.4× as much research as Greenland in 2022-now (545 against 223 fractional works).
Whose research has more impact, Chad or Greenland?
9.1% of Greenland's research reaches the world's top 10% most cited, against 4.2% for Chad.
Is Chad or Greenland growing faster?
Output in 2022-25 was +104% against 2018-21 for Chad, and +3% for Greenland.
Which has more open access research, Chad or Greenland?
79% of Chad's research is free to read, against 51% of Greenland's.
Which has more world-class institutions, Chad or Greenland?
Chad holds 0 of the world's top 100 research institutions and Greenland 0; in the top 1,000 it is 0 against 0.
Which institutions lead in each country?
The highest-ranked institutions on each side on research quality, 2022-now. The percentage is each institution's own top-10% rate: the share of its works that are among the world's 10% most cited for their field and year. Every figure stands alone, so they do not add up to 100%.
Chad
- 1University of N'Djamena3.4% top 10% · 365 works
Greenland
- 1Ilisimatusarfik7.5% top 10% · 99 works
- 2Grønlands Naturinstitut11.5% top 10% · 88 works
The number is the rank inside the country. The track on each row is the top-10% rate; the tick is the average of all institutions, 10.0% (how it is set): teal above it, red below. The ranking is the quality score, which compares the rate with what each institution's own topics predict and adds a small reward for size, so the rates do not fall in order.
Who are the top researchers on each side?
The most cited researchers on each side, among those ranked.
Chad
- 1 Andossa Likius #853,994 worldwide 4.6k citations · 80 works
- 2 Jean‐Claude Mousseuknadji Kouladoum #1,017,261 worldwide 387 citations · 27 works
- 3 Hassane Taïsso Mackaye #1,057,251 worldwide 3.5k citations · 61 works
- 4 Yodé Miangotar #1,646,455 worldwide 1.9k citations · 18 works
- 5 Hassan Taïsso Mackaye #1,834,244 worldwide 1.1k citations · 22 works
Greenland
- 1 Lorenz Meire #298,354 worldwide 3.2k citations · 174 works
- 2 John Mortensen #323,266 worldwide 3.8k citations · 99 works
- 3 Alexandra Messerli #413,578 worldwide 351 citations · 1,945 works
- 4 Erik W. Born #443,074 worldwide 11k citations · 227 works
- 5 Malene J. Simon #444,230 worldwide 2.8k citations · 88 works