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. 2022 Sep 19;19(18):11835. doi: 10.3390/ijerph191811835

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© 2022 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Distribution of pixel values of original DMSP and VIIRS annual composites in 2012 (a) and 2013 (b) in Shenyang, and original DMSP and simulated VIIRS annual composites in 2012 (c) and 2013 (d) in Shenyang.