spectral signature of different land use classes
step 1: copy the code below to display the sentinel-2 image
var bandsIn = ee.List(['B1','B2','B3','B4','B5','B6','B7','B8','B8A','B9','B10','B11','B12']) var bandsOut = ee.List(['cb','blue','green','red','re1','re2','re3','nir1','nir2','waterVapor','cirrus','swir1','swir2']) var wavelengths =[443.9,496.6,559,664.5,703.9,740.2,782.5,835.1,864.8,945,1373.5,1613.7,2202.4] var img = ee.Image("COPERNICUS/S2/20171117T050101_20171117T051014_T44NMP").select(bandsIn,bandsOut) Map.addLayer(img,{bands:"??,??,??",min:0,max:??})
step 2: Add feature for agriculture
Step 3: Add a point to the map for agriculture
Step 4: Combine points into a feature collection
// Define and display a FeatureCollection of three known locations. var points = ee.FeatureCollection([ agriculture,urban,water,forest ]);
step 5: Define the options for the chart.
// Define customization options. var options = { title: '?? ', hAxis: {title: '??'}, vAxis: {title: '??'}, lineWidth: 1, pointSize: 4, series: { 0: {color: '50d643'}, 1: {color: 'ff0404'}, 2: {color: '0b4a8b'}, 3: {color: '0e4c0c'}, }};
step 6: create and display the chart
// Create the chart and set options. var spectraChart = ui.Chart.image.regions( img, points, ee.Reducer.mean(), 30, 'label', wavelengths) .setChartType('LineChart') .setOptions(options); print(spectraChart)
Would you please add its GEE link?
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