Long time series night time light remote sensing dataset for the Sahel-Sudano-Guinean region of Africa (1992-2020)
This data set includes year-by-year nighttime light annual images (totally 28 images) in Northern Equatorial Africa and Sahel from 1992 to 2020. By establishing the calibration relationship by fitting the median NPP-VIIRS nighttime light radiance and the DMSP-OLS nighttime light DN values, the DMSP-OLS nighttime light stable data from 1992 to 2013 were calibrated, and the synthesized DMSP-OLS data after 2013 are generated based on NPP-VIIRS nighttime light data. The spatial resolution is 0.00833 ° (about 1km); Raster data type is GeoTIFF. The grid pixel value is radiance with unit 10 − 9 w ∙ cm − 2 ∙ sr − 1. This data set can be used for the study on human activities in Northern Equatorial Africa and Sahel, such as the analysis of temporal and spatial changes of human activities.
File naming: the data is stored in GeoTIFF format. The file name is "mc_annual_ntl_yyyy. TIF", where yyyy represents the year.
Data reading method: software or computer language that can read GeoTIFF can read the data, such as ArcGIS, envi, IDL, python, MATLAB, etc.
Yuan, X., Jia, L., Jiang, M. (2022). Long time series night time light remote sensing dataset for the Sahel-Sudano-Guinean region of Africa (1992-2020). A Big Earth Data Platform for Three Poles, DOI: 10.11888/HumanNat.tpdc.272019. CSTR: 18406.11.HumanNat.tpdc.272019. (Download the reference： RIS | Bibtex )
Related Literatures:1. Yuan X.T., Jia L., Menenti M., Jiang M. (2022) Constructing Nighttime Light Time Series in 1992 - 2019 for the Northern Equatorial Africa and Sahel Region by Merging DMSP-OLS and NPP-VIIRS Data, Big Earth Data. DOI:10.1080/20964471.2022.2031542( View Details | Bibtex)
Using this data, the data citation is required to be referenced and the related literatures are suggested to be cited.
Driving Mechanisms of Land Use and Cover Change in the Sahel: Impacts and Responses (No:41661144022)
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