Li, T., Wang, Z., Kyba, C.C.M. et al. Satellite imagery reveals increasing volatility in human night-time activity. Nature
Objective:
- Quantify the timing, intensity, type, and direction of ALAN changes for every 15-arc-second pixel across the primary inhabited landmasses of Earth
Case:
- Global
Methodology:
- VZA-COLD algorithm
Data Source
- 1.16 million daily NASA Black Marble NTL images
Findings:
- Nightlights of Earth are dynamic, characterized by frequent and coexisting brightening and dimming