Lagos join six cities for research wey use satellite observations wey dem take again and again to examine when neighbourhoods dey change, instead of only how far city don spread. For report wey NASA publish on 30 October 2026, the agency explain “Urban Pulse” method wey identifies periods of plenty physical change and periods wey quieter. The Nigerian city dey inside the study itself; no be only example wey dem suggest for future testing.
The team wey researchers Zhe Zhu and Karen Seto lead use Harmonized Landsat and Sentinel-2 data together with deep learning and analysis of observations over time. NASA say the method dey identify changes for land surface wey connect with construction. The research cover Lagos, Dubai, Mexico City, Mumbai, Seattle and Shenzhen, and compare five nearby neighbourhoods for each city. This arrangement examine differences inside cities and differences between cities.
According to NASA report, researchers find say neighbourhood changes dey happen in separate periods, and often for different times. One area fit get plenty work within short time while another area remain comparatively quiet. So one average for the whole city fit hide important local differences. “Pulse” na way to describe these changing patterns; no be direct measurement of city health or how well residents dey live.
The combined satellite system fit observe the same area every two to three days. Urban Pulse uses that sequence to work out when physical changes happen and how strong dem be, including construction, repairs, infrastructure improvements and demolition. E no mean say every new image dey identify the purpose of every building project. To understand the signals, people still need knowledge of the place and evidence wey dem gather for ground.
For Lagos, the practical interest na where officials fit investigate pressure on services. Strong construction signal fit make dem check roads, water supply, schools or emergency services before dem make decisions. E no be proof say any named neighbourhood no get those services. NASA describe planning uses as possibilities; the report no announce say Lagos State Government don adopt am or release new official development rating.
The study also examine how construction reduce around COVID-19 period, before different recovery patterns follow. That history help explain why one story about city growth fit miss local experience. The new NASA report present tool for asking better questions about change. How useful e go be for Nigerian planning go depend on careful interpretation, local verification and how officials connect the evidence with actual needs.