Wednesday, May 17
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TOPAZ arrived at NLVA around 13:00 PDT, the system was set up, the laser was realigned, and data were taken from 17:37 - 20:57 PDT. Rather cool temperatures and strong winds out of the NW. High ozone (80 - 120 ppbv) was observed above 4.5 km AGL. Boundary layer and surface ozone peaked around 19:00 PDT at around 70 ppbv.