This dataset provides a Swiss-wide mosaic of night-time lights, derived from SDGSAT-1 GLI satellite imagery. The mosaic contains median radiance values based on observations from winter 2023/24. Poor-quality images (due to factors such as clouds, inconsistent geometric accuracy or excessive noise) have been manually excluded.
The potential of SDGSAT-1 night-time lights data for ecological applications is discussed in Weber et al. (2025).
Two mosaic types are available
-PAN Radiance (10 m resolution) with three bands: Panchromatic Low (PL), Panchromatic High (PH), and High Dynamic Range (HDR)
-RGB Radiance (40 m resolution) with three bands: Red, Green, and Blue
Additional layers for PAN/RGB include
-Number of observations per pixel (OBS)
-Standard deviation of radiance values per pixel (SD)
Additional information
-Radiance values were calculate based on the calibration values (gain, bias) V3.0
-Radiance values were converted to nW/cm^2/sr
-Of the three panchromatic bands, HDR is recommended for use as it is the weighted average of 50% of the PL and PH data.
-Access and more information about SDGSAT-1 data: sdgsat.ac.cn
Attribution
This dataset is based on SDGSAT-1 imagery provided by the International Research Center of Big Data for Sustainable Development Goals (CBAS). It is acknowledged that the SDGSAT-1 data are kindly provided by CBAS for non-commercial use.
For questions or collaboration, contact: dominique.weber@wsl.ch
