serug a kuykendall is from russia and a specialist in the impact of volcanic eruptions. but the air of mega 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 gets computer through this universe and then have a sample of the beam expand there on the credit score for him expands and descend into the atmosphere and then be with a telescope to get the scattered signal back from as high as one. long discussion. and that's how we get the information on the composition of the atmosphere. in addition to the lidar at the station sergey also used this space based calypso lidar which covers the entire globe. when they actually checked of the data from the lakers i saw something really extraordinary piece and then spiders in general. they send lots of small can i say into the stratosphere and then these plumes they cross the atlantic in just one week and arrived in europe. passing through europe on its way east the smoke