Recently, I am trying to export some Landsat-8 surface reflectance data from Google Earth Engine, and the values of these data are around thousands, which can also verified by example code provided by Google Earth Engine (min:0, max:3000 for visualization):
However, it is not very convenient for Google Earth Engine to export a huge size of data, so I found that Google Cloud Storage has public bucket (cloud.google.com/storage/docs/public-datasets/landsat) for Landsat-8 data according to the suggestion from @spatialthoughts.
When I downloaded some Landsat-8 data from Cloud collections and open them in ENVI, I found DN values of these data are about 10 times bigger than those data from Google Earth Engine. Plus, I also found FAQ of Google Earth Engine mentioned that:
Therefore, I am wondering is there any preprocess procedure for Landsat-8 data in Google Earth Engine? I really need many Landsat-8 full images exactly same as Google Earth Engine.