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I'm attempting to run a function to automate the gap filling of nodata values in several imageCollections using focal mean, but somewhere I've taken the incorrect route. Need some help.

Map.setOptions('satellite')
Map.centerObject(chora, 11)

var bess =  = ee.ImageCollection("SNU/ESL/BESS/Rad/v1");
var aod = ee.ImageCollection("MODIS/006/MCD19A2_GRANULES");
var ndwi = ee.ImageCollection("MODIS/MYD09GA_006_NDWI");

var vari = bess.select('RSDN_Daily').filterDate('2021-01-01', '2021-12-31');

function fill(image){
  ima = image.focal_mean(1, 'square', 'pixels', 20)
  imei = ima.blend(image)
  image = imei
  return image
}

print(fill(vari))

1 Answer 1

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You want to invoke fill() for every image in your vari collection, as apposed to passing the whole collection to fill(). You use map() for that.

var filled = vari.map(fill)

https://code.earthengine.google.com/6fe5a41e17705f0470069e5c8edbb855

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