Whether satellite nighttime light maps match people's actual exposure to artificial light at night
A Validation Study of Satellite-based Measure of Artificial Light at Night for its Application in Epidemiological Research
This project compares satellite nighttime light maps with individual people’s measured exposure to see how well satellite data reflect real-life night lighting for a diverse U.S. population.
Quick facts
| Grant type | NIH-funded research |
|---|---|
| Study type | NIH-funded research |
| Funding institution | University of Texas Hlth Sci Ctr Houston NIH-funded |
| Lab location | 1 site (Houston, United States) |
| Project ID | NIH-11180477 on NIH RePORTER |
What this research studies
If you are included in the data analyzed, researchers will compare satellite-based measures of artificial light at night with individual-level exposure measurements from a large, nationally representative sample. They will examine differences across regions, ages, races, incomes, and lifestyles to find where satellite estimates do or do not match personal exposure. The team will also test whether satellite measures reliably capture links between nighttime light and health outcomes such as cardiometabolic conditions. The work uses existing U.S. population data to identify when satellite light metrics are trustworthy for health research.
Who could benefit from this research
Good fit: Ideal candidates are people whose health records and personal light-exposure information are part of large U.S. datasets (for example NHANES), especially those from diverse geographic and demographic groups.
Not a fit: People without individual-level light-exposure information or those whose conditions are unrelated to environmental light are unlikely to benefit directly from this work.
Why it matters
Potential benefit: If successful, this work will clarify when satellite light data can be trusted for health studies, helping researchers make better links between nighttime light and disease risk.
How similar studies have performed: Only two small prior studies compared satellite and personal ALAN measures and reported weak or no correlation, so this larger, diverse validation is relatively novel.
Where this research is happening
Houston, United States
- University of Texas Hlth Sci Ctr Houston — Houston, United States (Active)
Researchers
- Principal investigator: Xiao, Qian — University of Texas Hlth Sci Ctr Houston
- Study coordinator: Xiao, Qian
About this research
- This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
- Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
- For full project details, budget, and progress reports, visit the official NIH RePORTER page below.