A mean for a month of sentinel 2 data was created for 8 different bands.

I want to write and download this image into a geotiff. But this code doesn't seem to work.

# Compute a single mean from all data
ds_mean = ds.mean('time')

from datacube.utils.cog import write_cog

rgb_tiff = ds_mean.to_array()

  • 1
    Why do you think it is not working?
    – Padmanabha
    Commented Jun 12, 2023 at 10:41
  • My kernel is crashing when writing, I'm think that it needs to specify the specific time
    – Colette
    Commented Jun 12, 2023 at 10:48

1 Answer 1


How large, in pixels, is your x and y dimensions? And how large is your compute environment? Often the kernel crashing means you've exceeded RAM. And write_cog is very memory intensive (1.5-2 times the size of the file) as it produces overview images. See here

  • Yes I think that might be it. I think the y: 8673, x: 9466. So I'm trying to use the Lazy loading with Dask now to see if I can reduce the amount of memory needed
    – Colette
    Commented Jun 14, 2023 at 7:53

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