The Scientific Aviation Mooney aircraft flies over the TOPAZ truck and microDop lidar at NLVA. Photo: George Kirgis, NOAA / CIRESData collection underway 17 May 2017 from the TOPAZ (left) and microDop (right) lidars located at the North Las Vegas Airport (NLVA). Photo: Scott Sandberg, NOAAThe TOPAZ air intake got clogged by snow and slush during transit over a pass in Utah (note the slush on the front of the truck). Raul cleared it out and they're back on the road, on schedule to arrive in Las Vegas to begin measurements. Photo: Jeff Peischl, NOAA / CIRES