Google Earth Engine(GEE)——计算ECDI展示的代码2013-2020年6-8月份和循环下载以北京市为例
运行结果的下载的界面:
ECDI的指数公式:
'(SWIR1 - NIR + SWIR2)/(SWIR1 + NIR - SWIR2)'
代码:
var table = ee.FeatureCollection("users/bqt2000204051/Beijing");Map.addLayer(table)Map.centerObject(table,8)var rmL457Cloud = function(image) { var qa = image.select('pixel_qa'); var cloud = qa.bitwiseAnd(1 << 5) .and(qa.bitwiseAnd(1 << 7))// If the cloud bit (5) is set and the cloud confidence (7) is high .or(qa.bitwiseAnd(1 << 3));// or the cloud shadow bit is set (3), then it's a bad pixel. var mask