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Title

The nature of the diffuse light near cities detected in nighttime satellite imagery

AuthorsSánchez de Miguel, A.; Kyba, Christopher C. M.; Zamorano, Jaime; Gallego, Jesús; Gaston, Kevin J.
KeywordsAstronomical instrumentation
Atmospheric optics
Ecological epidemiology
Environmental impact
Issue Date2020
PublisherNature Publishing Group
CitationScientific Reports 10: 7829 (2020)
AbstractDiffuse glow has been observed around brightly lit cities in nighttime satellite imagery since at least the first publication of large scale maps in the late 1990s. In the literature, this has often been assumed to be an error related to the sensor, and referred to as "blooming", presumably in relation to the effect that can occur when using a CCD to photograph a bright light source. Here we show that the effect seen on the DMSP/OLS, SNPP/VIIRS-DNB and ISS is not only instrumental, but in fact represents a real detection of light scattered by the atmosphere. Data from the Universidad Complutense Madrid sky brightness survey are compared to nighttime imagery from multiple sensors with differing spatial resolutions, and found to be strongly correlated. These results suggest that it should be possible for a future space-based imaging radiometer to monitor changes in the diffuse artificial skyglow of cities.© 2020, The Author(s).
DescriptionOpen Access.-- This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
Publisher version (URL)http://dx.doi.org/10.1038/s41598-020-64673-2
URIhttp://hdl.handle.net/10261/213474
DOIhttp://dx.doi.org/10.1038/s41598-020-64673-2
ISSN2045-2322
Appears in Collections:(IAA) Artículos
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