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CLMS HR-S&I: SAR Wet Snow in high mountains - Wet Snow classification in high Mountains areas visualisation script

//VERSION=3

function setup() {
  return {
    input: ["WSM", "dataMask"],
    output: { bands: 4, sampleType: "AUTO" },
  };
}
const map = [
  [110, 0xff4dff], //110 - Wet Snow
  [125, 0xffffff], //115 - Dry Snow or Snow free or patchy snow
  [200, 0x000000], //200 - Radar Shadow
  [210, 0x4d4dff], //210 - Water
  [220, 0x00a600], //220 - Forest
  [230, 0xf2a64d], //230 - Urban Areas
  [240, 0xccffcc], //240 - Non-mountain areas
  [255, 0xff0000], //255 - NODATA
];

const visualizer = new ColorMapVisualizer(map);

function evaluatePixel(sample) {
  let rgbVis = visualizer.process(sample.WSM);
  return rgbVis.concat(sample.dataMask);
}

General description of the script

This script visualises SAR Wet Snow in high mountains - Wet Snow classification in high Mountains areas (SWS WSM).

Table 1: Classification classes and colouring scheme.

Value Color Label
1 110 - Wet snow
2 125 - Dry snow or snow free or patchy snow
3 200 - Radar shadow / layover / foreshortening
4 210 - Water
5 220 - Forest
6 230 - Urban area
7 240 - Non-mountain areas
8 255 - No data

Description of representative images

16th March 2021, Bormio, IT

SWS WSM

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