Associations of green space metrics with health and behavior outcomes at different buffer sizes and remote sensing sensor resolutions

Environment International
Jason SuMichael Jerrett

Abstract

Satellite data is increasingly used to characterize green space for health outcome studies. Literature suggests that green space within 500 m of home is often used to represent neighborhood suitable for walking, air pollution and noise reduction, and natural healing. In this paper, we used satellite data of different spatial resolutions to derive normalized difference vegetation index (NDVI), an indicator of surface greenness, at buffer distances of 50, 100, 250 and 500 m. Data included those of 2 m spatial resolution from WorldView2, 5 m resolution from RapidEye and 30 m resolution from Landsat. We found that, after radiometric calibrations, the RapidEye and WorldView2 sensors had similar NDVI values, while Landsat imagery tended to have greater NDVI; however, these sensors showed similar vegetation distribution: locations high in vegetation cover being high in NDVI, and vice versa. We linked the green space estimates to a health survey, and identified that higher NDVI values were significantly associated with better health outcomes. We further investigated the impacts of buffer size and sensor spatial resolution on identified associations between NDVI and health outcomes. Overall, the identified health outcomes were similar a...Continue Reading

Citations

Sep 17, 2020·International Journal of Environmental Research and Public Health·Yijun ZhangMelody Smith
Sep 11, 2020·European Journal of Pediatrics·Inês PaciênciaAndré Moreira
Aug 9, 2020·Environmental Pollution·Mohammad MiriPayam Dadvand
Oct 25, 2020·International Journal of Environmental Research and Public Health·Regina GrazulevicieneAudrius Dėdelė
Dec 1, 2020·The Science of the Total Environment·Longfeng Wu, Seung Kyum Kim
Mar 11, 2021·Journal of Technology in Behavioral Science·Josca Van Houwelingen-SnippeThomas J L Van Rompay
Mar 7, 2021·International Journal of Environmental Research and Public Health·Jake M RobinsonAnna Jorgensen
Aug 10, 2020·Environmental Research·Maria Torres TodaPayam Dadvand
May 1, 2021·International Journal of Environmental Research and Public Health·Faysal Kabir ShuvoS M Labib
Aug 25, 2021·Environment International·Yimeng SongYongze Song
Aug 28, 2021·International Journal of Environmental Research and Public Health·Young-Shin ParkJean F Wyman

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