I want to calculate the total yearly
NO2 emission from the power plants by using Sentinel-5p NO2 data. First I defined my aoi and sum all 365 images into one image using
ee.Reducer.sum(). After that
sum reducer) to find the total yearly sum of no2 of my aoi. But this picks a lot of noise from other emission sources like transport.
For avoiding those, I have planned to use Weighted Reductions. I want to use weight in reduceRegion in a way where pixels away from power plants will receive less weight and higher weight to nearest pixels to power plants.
From the documentation, we can see how to calculate weights for clouds ( the more cloud, the less weight each pixel will get ). But how do I calculate weights in my case where each pixel will receive weights according to distances to nearest power plants.