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Google Earth Engineで虹色トラック

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概要

Google Earth Engineで、虹色トラックを探してみた。

写真

無題.jpg

サンプルコード

var po = ee.Geometry.Point(140.425, 37.793);
Map.centerObject(po, 15);
function maskS2clouds(image) {
    var qa = image.select('QA60');
    var cloudBitMask = 1 << 10;
    var cirrusBitMask = 1 << 11;
    var mask = qa.bitwiseAnd(cloudBitMask).eq(0).and(qa.bitwiseAnd(cirrusBitMask).eq(0));
    return image.updateMask(mask).divide(10000);
}
var dataset = ee.ImageCollection('COPERNICUS/S2').filterDate('2018-01-01', '2018-06-30').filter(ee.Filter.lt('CLOUDY_PIXEL_PERCENTAGE', 20)).map(maskS2clouds);
var rgbVis = {
    min: 0.0,
    max: 0.3,
    bands: ['B4', 'B3', 'B2'],
};
Map.addLayer(dataset.mosaic(), rgbVis, 'RGB');



以上。

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