Presentation | IN32A: Advancing Global Insights Through Nighttime Light Observations I Oral
Oral
IN32A-01: Spectral Intensity of Artificial Light at Night: Insights from TEMPO Observations, Background Noise Correction, and Circadian Stimulus Applications
Author(s): Zhixin Xue, University of Iowa (First Author, Presenting Author) Meng Zhou, University of Iowa Jun Wang, the University of Iowa James Carr, Carr Astronautics Xiong Liu, Center for Astrophysics | Harvard & Smithsonian
Artificial light at night (ALAN), especially blue light, can disrupt sleep and has been linked to health issues like cancer and heart disease. The new TEMPO satellite provides detailed data on both the brightness and color of nighttime lights across North America. In this study, we developed a method to process TEMPO data and validated it with other satellite observations and astronaut photos. Using this information, we created a map showing how nighttime light affects the human circadian system. We also explored how this exposure varies with household income, revealing possible links between light pollution, health risks, and socioeconomic inequality.
