sirrah gaikai canada is from russia and a specialist in the impact of volcanic eruptions. but the air of make of fires has expanded his field of study. i thought why not check whether we see something can fly the measurements here at the station. measure objects by bouncing laser beams off them. laser beam comes out of their jets computer through this universe and then it is sent to the beam expand their of it of course for the beam expands and then descend into the atmosphere and then be was a telescope to get the scattered signal back from as high as one. can just. and that's how we get information on the composition of the atmosphere. in addition to the light our at the station sergey also used the space based calypso lidar which covers the entire globe. when i assure you checked of the data from the lakers i saw something really extraordinary these invent spiders in general. they send lots of small can i say into the stratosphere and then these plumes they crossed the atlantic even just one week and arrived in europe. passing through europe on its way east the smoke cr