Long time series night time light remote sensing dataset for the Sahel-Sudano-Guinean region of Africa (1992-2020)

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 and required software

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.


Data Citations Data citation guideline What's data citation?
Cite as:

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). National Tibetan Plateau Data Center, 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.


Support Program

Driving Mechanisms of Land Use and Cover Change in the Sahel: Impacts and Responses (No:41661144022)

Copyright & License

To respect the intellectual property rights, protect the rights of data authors,expand servglacials of the data center, and evaluate the application potential of data, data users should clearly indicate the source of the data and the author of the data in the research results generated by using the data (including published papers, articles, data products, and unpublished research reports, data products and other results). For re-posting (second or multiple releases) data, the author must also indicate the source of the original data.

Example of acknowledgement statement is included below: The data set is provided by National Tibetan Plateau Data Center (http://data.tpdc.ac.cn).


License: This work is licensed under an Attribution 4.0 International (CC BY 4.0)


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Keywords
Geographic coverage
East: 50.00 West: -20.00
South: 0.00 North: 20.00
Details
  • Temporal resolution: Yearly
  • Spatial resolution: 100m - 1km
  • File size: 117 MB
  • Views: 3,818
  • Downloads: 142
  • Access: Open Access
  • Updated time: 2022-07-06
Contacts
: YUAN Xiaotian    JIA Li    JIANG Min   

Distributor: National Tibetan Plateau Data Center

Email: data@itpcas.ac.cn

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