GEE基于哨兵數(shù)據(jù)Sentinel計算修正歸一化差值水體指數(shù)MNDWI
// 編寫一個函數(shù)，用于計算圖像的MNDWI，并將其添加為波段
function addMNDWI(image) {
?var mndwi = image.normalizedDifference(['B3', 'B11']).rename('MNDWI');
?return image.addBands(mndwi).select("MNDWI");
}
// 將函數(shù)映射到集合上
var withMNDWI = filtered.map(addMNDWI).median().clip(geometry);
print(withMNDWI)
var precipitationVis = {
?min: 0,
?max: 1,
?palette: ['001137', '0aab1e', 'e7eb05', 'ff4a2d', 'e90000'],
};
Map.addLayer(withMNDWI,precipitationVis)
Export.image.toDrive({
???image: withMNDWI,
???description: '2020year',
???region: geometry,
???scale: 10,
???maxPixels: 1e13,
???folder: 'LCZ'
??})
標簽：
