Mapping urban extent at large spatial scales using machine learning methods with VIIRS nighttime light and MODIS daytime NDVI data November 10, 2019 Liu, X., A. de Sherbinin, and Y. Zhan. 2019. Mapping urban extent at large spatial scales using machine learning methods with VIIRS nighttime light and MODIS daytime NDVI data. Remote Sens.11:1247. https://doi.org/10.3390/rs11101247.