Global Land Cover discrete classification map visualisation script 

//VERSION=3

// This custom script visualises land cover discrete classification map from global land  cover data

function setup() {
  return {
    input: ["Discrete_Classification_map"],
    output: {
      bands: 4,
      sampleType: "AUTO"
    }
  }
}

const map = [
  [0, 0x282828],   // No input data available
  [20, 0xffbb22],  // Shrubs
  [30, 0xffff4c],  // Herbaceous vegetation
  [40, 0xf096ff],  // Cultivated and managed vegetation/agriculture (cropland)
  [50, 0xfa0000],  // Urban / built up
  [60, 0xb4b4b4],  //	Bare / sparse vegetation
  [70, 0xf0f0f0],  //	Snow and Ice
  [80, 0x0032c8],  //	Permanent water bodies
  [90, 0x0096a0],  //	Herbaceous wetland
  [100, 0xfae6a0], //	Moss and lichen
  [111, 0x58481f], // Closed forest, evergreen needle leaf
  [112, 0x009900], // Closed forest, evergreen, broad leaf
  [113, 0x70663e], // Closed forest, deciduous needle leaf
  [114, 0x00cc00], //	Closed forest, deciduous broad leaf
  [115, 0x4e751f], // Closed forest, mixed
  [116, 0x007800], // Closed forest, unknown
  [121, 0x666000], //	Open forest, evergreen needle leafs
  [122, 0x8db400], // Open forest, evergreen broad leaf
  [123, 0x8d7400], //	Open forest, deciduous needle leaf
  [124, 0xa0dc00], //	Open forest, deciduous broad leaf
  [125, 0x929900], // Open forest, mixed
  [126, 0x648c00], // Open forest, unknown
  [200, 0x000080]  // Open sea
];

const visualizer = new ColorMapVisualizer(map);

function evaluatePixel(sample) {
  let rgbVis = visualizer.process(sample.Discrete_Classification_map);
  return rgbVis.concat(sample.Discrete_Classification_map != 255);
}

General description of the script

This script visualises Global Land Cover discrete classification map with classes defined using the UN-FAO Land Cover Classification System (LCCS) and with color scheme defined in the Product User Manual.

Table 1: Color legend for the 23 discrete classes of land cover classification map

Value Color Label
0 No input data available
20 Shrubs
30 Herbaceous vegetation
40 Cultivated and managed vegetation/agriculture (cropland)
50 Urban / built up
60 Bare / sparse vegetation
70 Snow and Ice
80 Permanent water bodies
90 Herbaceous wetland
100 Moss and lichen
111 Closed forest, evergreen needle leaf
112 Closed forest, evergreen, broad leaf
113 Closed forest, deciduous needle leaf
114 Closed forest, deciduous broad leaf
115 Closed forest, mixed
116 Closed forest, unknown
121 Open forest, evergreen needle leaf
122 Open forest, evergreen broad leaf
123 Open forest, deciduous needle leaf
124 Open forest, deciduous broad leaf
125 Open forest, mixed
126 Open forest, unknown
200 Open sea
255 No data

Description of representative images

2019 nrt discrete land cover classification map for parts of North Africa visualised in EO browser

Discrete classification map for parts of North Africa

2019 nrt discrete land cover classification map for Republic of Ecuador’s Galápagos Island visualised in EO browser

Discrete classification map for Republic of Ecuador's Galápagos Island

Resources