Atmos MOOC Topic 2b Part 1 Air quality measurements in situ in… EUMETSAT 0 5 11.18 17:20 https://www.youtube.com/watch?v=iozWICYC20M + 1 https://www.youtube.com/feeds/videos.xml?channel_id=UCiN59j5b1fAGnXVzI… + 1 Atmos MOOC Topic 2b Part 1 Air quality measurements in situ instruments & validating satelli