Extracts raster and zonal statistics from satellite nightlight rasters downloaded from the United States National Oceanic and Atmospheric Administration (<http://www.noaa.gov>) free data repositories. Both the DMSP-OLS annual and SNPP-VIIRS monthly nightlight raster data are supported. Satellite nightlight raster tiles are downloaded and cropped to the country boundaries using shapefiles from the GADM database of Global Administrative Areas (<http://gadm.org>). Zonal statistics are then calculated at the lowest administrative boundary for the selected country and cached locally for future retrieval. Finally, a simple data explorer/browser is included that allows one to visualize the cached data e.g. graphing, mapping and clustering regional data.
Package details |
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Author | Christopher Njuguna [aut, cre, cph] |
Maintainer | Christopher Njuguna <chris.njuguna@gmail.com> |
License | GPL-3 |
Version | 0.2.4 |
URL | https://github.com/chrisvwn/Rnightlights |
Package repository | View on CRAN |
Installation |
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