@AndyTatem

Professor, University of Southampton. Director of WorldPop (@WorldPopProject).

 Winchester, UK
worldpop.org
Joined June 2012
  • Tweets1.2K
  • Following565
  • Followers2K
12Media
How do you use WorldPop #opendata - or how would you like to use it in the future? We’d love to hear from you. 👉 Take the survey here: southampton.qualtrics.com/jf… Or scan the QR code. Thank you for helping us build better - together.
QR code reading "WorldPop Scan Me" linking to https://southampton.qualtrics.com/jfe/form/SV_820s1m3SBUFEEqq

ALT QR code reading "WorldPop Scan Me" linking to https://southampton.qualtrics.com/jfe/form/SV_820s1m3SBUFEEqq

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Millions are missing from #population data. New #AI and #satellite #mapping methods are changing that - faster, fairer, and more local than ever. 🌍📊 Learn more: worldpop.org/blog/mapping-th… #DataForGood #AI4Development #SDGs
Satellite view Ekohok, Cameroon (from free-map.org)

ALT Satellite view Ekohok, Cameroon (from free-map.org)

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🔥 Do heat adaptation strategies really work? A study of 1.1 billion devices across 366 Chinese cities shows cooling centres matter - but impacts vary by heat, wealth & age. 🔗Read and listen:  worldpop.org/blog/when-heatw… #ClimateChange #ExtremeHeat #Cities #Adaptation
Photo of Street Vendors, Guilin, China Image by GuangWu Yang from Pixabay https://pixabay.com/photos/china-street-street-vendors-guilin-6788187/

ALT Photo of Street Vendors, Guilin, China Image by GuangWu Yang from Pixabay https://pixabay.com/photos/china-street-street-vendors-guilin-6788187/

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🏙️What is a city? The answer changes with the data. Data quality defines the city. New research shows maps can disagree on what’s urban or rural depending on the population grid underneath. 🔗Read and listen:  worldpop.org/blog/degurba-wh… #DEGURBA #Planning #DataForDevelopment
Graphic showing the spatial entities around Ouagadougou, Burkina Faso identified by four population datasets

ALT Graphic showing the spatial entities around Ouagadougou, Burkina Faso identified by four population datasets

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🌍What if millions were missing from the data that shapes your future? 🇨🇲 Cameroon’s first hybrid census is using new methods to make everyone count. 🔗Learn more: worldpop.org/blog/hybrid-cen… #Census #DataForGood #Cameroon
Photo of Dr Chris Nnanatu supporting hybrid census workshop participants.

ALT Photo of Dr Chris Nnanatu supporting hybrid census workshop participants.

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Data powers resilience. 🌍 WorldPop joined CARICOM’s 50th stats meeting in Curaçao to advance people-centred, climate-ready data. Read more: worldpop.org/blog/worldpop-s… #CARICOM #DataForDevelopment #ClimateResilience #GeospatialData
Photo of Willemstad, Curacao by Gail Frederick, 2008 CC BY 2.0 https://flic.kr/p/63cn6Q

ALT Photo of Willemstad, Curacao by Gail Frederick, 2008 CC BY 2.0 https://flic.kr/p/63cn6Q

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🇲🇼Malawi’s first automated census-mapping workshop is complete! 🛠️Geospatial tools are transforming how the 2028 census is planned. 🔗Read more: worldpop.org/blog/first-auto… #Malawi #DataForDevelopment #Census2028 #GeospatialData
Photo of Dr Sarchil Qader guides Malawi NSO statisticians on ground data collection.

ALT Photo of Dr Sarchil Qader guides Malawi NSO statisticians on ground data collection.

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🦠 Pandemics don’t spread randomly - they follow the paths we create through our social lives and movements. 📖 🔊 Read + listen about how networks shape outbreaks: worldpop.org/blog/how-our-so… #InfectiousDisease #NetworkScience #HealthBehaviours #Epidemics #DataScience
Graphic illustrating the potential impact of social, mobility and contact networks on infectious disease transmission.

ALT Graphic illustrating the potential impact of social, mobility and contact networks on infectious disease transmission.

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See your world in a new way 🌍✨ Discover how the Degree of Urbanisation lets you map cities, towns & rural areas with accuracy. Your local knowledge brings it to life. Watch now ▶️youtu.be/2fifteIbo2c CC: French, Spanish & Italian #DEGURBA #SDGs #UrbanPlanning #GIS #UNStats
Photo collage showing rural, town and city settings.

ALT Photo collage showing rural, town and city settings.

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📰 The November 2025 edition of the WorldPop Newsletter is out! 🌍Explore new data releases, research updates & impact stories. ✒️Don't miss out - sign up for our next edition! 🔗worldpop.org/worldpop-newsle…
Two photos showing WorldPop capacity building in action - left Dr Winfred Dotse-Gborgbortsi and right Dr Natalia Tejedor Garavito

ALT Two photos showing WorldPop capacity building in action - left Dr Winfred Dotse-Gborgbortsi and right Dr Natalia Tejedor Garavito

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🔬 A new #MOOD #HorizonEU study reveals how #COVID19 modelling, data use & collaboration evolved across #Europe - offering key lessons for future pandemics. 📖 🔊 Read more + listen: worldpop.org/blog/lessons-fr…
Photo of man wearing mask in street by Jeyaratnam Caniceus via Pixabay https://pixabay.com/photos/man-face-mask-covid19-road-mask-6153671/

ALT Photo of man wearing mask in street by Jeyaratnam Caniceus via Pixabay https://pixabay.com/photos/man-face-mask-covid19-road-mask-6153671/

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🌍 Tomorrow we launch WorldPop Global 2: A new era of global high-resolution #populationdata (2015–2030)! Built with AI & satellite imagery, it's open, powerful & ready for use in health, planning & disaster response. 🔗worldpop.org/blog/worldpop-g… #Geospatial #DataForGood
An image of WorldPop Global2 population estimates overlaid on satellite imagery for Northern Europe showing high population numbers in white and lower numbers in red. 2025

ALT An image of WorldPop Global2 population estimates overlaid on satellite imagery for Northern Europe showing high population numbers in white and lower numbers in red. 2025

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Missed The Power of Population Data webinar? 🎥 The recording & presentation slides are now available! Dive into the latest on WorldPop’s Global 2 dataset and how it's shaping smarter decisions worldwide. 🌍📊 🔗 worldpop.org/blog/new-global…
Screen capture of The Power of Population Data webinar, showing Dr Maksym Bondarenko, Dr Jessica Espey and Professor Andy Tatem.

ALT Screen capture of The Power of Population Data webinar, showing Dr Maksym Bondarenko, Dr Jessica Espey and Professor Andy Tatem.

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🚨 New study: A Bayesian model maps population in Kasaï-Oriental, #DRC with 1-hectare detail, the first of its kind! Estimated 4.1M people. An important advance for #health planning, #vaccines & emergency response. Read & listen: worldpop.org/blog/further-im…
Map showing building and population counts observed in the 213 micro-census clusters located within the modelling environment categorised by settlement class

ALT Map showing building and population counts observed in the 213 micro-census clusters located within the modelling environment categorised by settlement class

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Journey of a thousand miles begins with one step! Last week @SyriaUnfpa and partners took a bold first step to explore solutions to strengthen Syria’s #population #data systems. After 14 years of conflict, massive population displacements and limited investment in robust data systems, now is the time to rebuild #Syria statistical system & a culture of data driven planning and decision making. #UNFPA #Syria brought together key national institutions, @UNESCWA and WorldPop in coordination with the Planning and Statistical Commission. Delighted to have witnessed the beginning of a promising partnership.
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🚀 Exciting news! In partnership with the UK’s ONS & funded by FCDO, we're introducing automated mapping tech to Malawi’s National Statistics Office. Streamlining the 2028 #census for fast, cost-efficient, and accurate enumeration. #DataForGood #Malawi worldpop.org/blog/worldpop-b…
Photo of a Malawi village by leliebloem, 2018 CC BY-NC-SA 2.0 https://flic.kr/p/29rg4KQ

ALT Photo of a Malawi village by leliebloem, 2018 CC BY-NC-SA 2.0 https://flic.kr/p/29rg4KQ

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🚀Pioneering data for Somalia’s future! WorldPop, SNBS & UNFPA are training Somali statisticians in geospatial tools to map pre‑census areas in key districts. Helping build a modern census from the ground up. #DataForDevelopment #Somalia #Census #PreEA 🔗worldpop.org/blog/supporting…
Screen capture of Somalia National Bureau of Statistics dashboard

ALT Screen capture of Somalia National Bureau of Statistics dashboard

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🚨 Big news in population mapping! No more confusing 2.3 people per grid cell. The new WorldPop integerisation method transforms fractional data without losing accuracy. 👉 Learn more, read the preprint & try the tool: worldpop.org/blog/new-method… #PopulationData #DataScience
Graphic map comparing different methods of integerisation.

ALT Graphic map comparing different methods of integerisation.

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🚨 New preprint: 73 high-res, global, multi-temporal geospatial datasets! Covering 2015–2023 at ~100m resolution, these open data power better population modelling for health, policy & more. worldpop.org/blog/new-open-a…
Graphic image showing comparison of population count estimates modelled from new covariates (year 2024) and population count estimates modelled from 2020 covariates for Luanda (Angola)

ALT Graphic image showing comparison of population count estimates modelled from new covariates (year 2024) and population count estimates modelled from 2020 covariates for Luanda (Angola)

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🌍 How can data save lives during disasters? WorldPop co-produced high-resolution population data for a new UN study, helping map how vulnerable groups face risks from floods, earthquakes & more. Smarter data = smarter planning. 💡📊 #UNFPA #UNDRR worldpop.org/blog/worldpop-c…
Photorealistic image of a child in a refugee camp

ALT Photorealistic image of a child in a refugee camp

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