FAST-LVOS 2017 TOPAZ Data

June 15, 2017

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Daily Summary:

Thursday, June 15
TOPAZ data were recorded from 09:11 - 19:51 PDT. Hot (max. of 41 C), clear conditions, except some high clouds to the north in the evening. Light winds that followed the diurnal flow pattern thru mid afternoon, then a wind shift to the S and then W with wind speeds increasing to ~8 m/s. The mixed layer was very shallow until midday and then grew quite rapidly to a depth of 2800 m agl. Surface and boundary layer ozone increased to almost 80 ppbv around 14:00 PDT, dropped down to around 60 ppbv in the middle of the afternoon, and then increased again at 16:30 to around 70 ppbv, before dropping below 60 ppbv at sunset.