Sentinel-5P Aerosol concentrations 340/380 nm
//VERSION=3
const band = "AER_AI_340_380";
var minVal = -1.0;
var maxVal = 5.0;
function setup() {
return {
input: [band, "dataMask"],
output: {
bands: 4,
},
};
}
var viz = ColorRampVisualizer.createBlueRed(minVal, maxVal);
function evaluatePixel(samples) {
let ret = viz.process(samples[band]);
ret.push(samples.dataMask);
return ret;
}Evaluate and Visualize
Description
The Aerosol Index (AI) is a qualitative index indicating the presence of elevated layers of aerosols in the atmosphere. It can be used to detect the presence of UV absorbing aerosols such as desert dust and volcanic ash plumes. Positive values (from light blue to red) indicate the presence of UV-absorbing aerosol. This script visualizes AER wavelength pair 340/380 nm.
Description of representative images
High aerosol concentrations over Chad, 2019-07-04. 