Study of the impact of COVID-19 on Tokyo's 23 wards using Suomi-NPP nighttime light satellite images

Moyu Sekine; Hideki Hashiba; Masashi Sonobe

doi:10.1117/12.3022903

28 May 2024 Study of the impact of COVID-19 on Tokyo's 23 wards using Suomi-NPP nighttime light satellite images

Moyu Sekine, Hideki Hashiba, Masashi Sonobe

Proceedings Volume 13083, SPIE Future Sensing Technologies 2024; 130831A (2024) https://doi.org/10.1117/12.3022903
Event: SPIE Future Sensing Technologies, 2024, Yokohama, Japan

Conference Poster

Abstract

COVID-19 rapidly spread worldwide in 2020, leading to a pandemic. In Japan, measures like stay-at-home requests and remote work were implemented, shifting towards an internet-based lifestyle. Strict restrictions were imposed on high-risk industries such as restaurants, resulting in a 10-15% GDP decrease and significant societal and economic impacts. Nighttime light is known to correlate with various social and economic indicators. This observational information is expected to be used in the future, as it will be possible to easily estimate economic indicators from satellite night light observations in areas where statistical information research and maintenance is insufficient. This study utilized nighttime observation images from the Suomi-NPP satellite, which has improved spatial resolution and observation range compared to conventional night light observation satellite. Using these images observation information, the social situation and living environment of Tokyo's 23 wards were investigated, and changes in people's lives under COVID-19 were considered. Time-series changes in nighttime light distribution before, during, and after the COVID-19 outbreak were investigated. Different trends in the distribution of night light were observed in each of Tokyo's 23 wards. These trends were analyzed by overlaying them with various spatial information, such as land use and transportation networks like railways and highways. As a result, in commercial areas with large bustling commercial districts, radiance decreased, while in areas with a high concentration of residences, radiance increased. From this study, trends in changes in radiance values related to land use and transportation infrastructure were considered.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Moyu Sekine, Hideki Hashiba, and Masashi Sonobe "Study of the impact of COVID-19 on Tokyo's 23 wards using Suomi-NPP nighttime light satellite images", Proc. SPIE 13083, SPIE Future Sensing Technologies 2024, 130831A (28 May 2024); https://doi.org/10.1117/12.3022903

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