Emission in the blue part of the spectrum
The purpose of this indicator is to classify light sources according to the "red emissions/blue emissions" ratio, calculated from nighttime satellite images, and to identify which areas and which uses are most affected by blue light.
Input parameters
- Extent zone : Extent of the study area used to delimit the calculated indicator.
- Satellite Image: Night Satellite Image in raster format.
- Choice of grid: Grid on which the indicator will be calculated, it can be imported or created.
- Import a grid: Grid vector layer already created.
- Create a grid :
- Diameter : Grid diameter, meters
- Grid type: Type of the grid to create.
Output data
- Statistics Blue Emmission Output : Vector layer representing the indicator calculated by grid with a classification by quantile in 5 classes from the lowest values to the highest, with also a class representing the grids without blue emission.
Save to temporary file if not filled.