June 4, 2016

< Previous Day | Archive Calendar | Next Day >

Daily Summary:

Saturday, June 4: CABOTS IOP1
Day 7 of CABOTS IOP 1 observations. TOPAZ data were taken from 09:10 - 00:54 PDT. Very hot (44 C), moderately hazy, a few high clouds until midday. The boundary layer (BL) rose from 300 m to about 1000 m AGL at 13:30 PDT when it merged with the overlying residual layer. BL ozone increased from 50 ppbv to 90-95 ppbv around 13:30 PDT. BL ozone stayed between 75 and 90 ppbv thru the afternoon and early evening before decreasing at night. A polluted layer extending from above the BL to about 2000 m AGL was observed during the entire measurement period. This layer contained enhanced aerosols and ozone values from 75 to 90 ppbv. After 21:00 a clean low-ozone layer between 2500 and 3000 m AGL was observed. The TOPAZ lidar observations overlapped with the midday and early evening missed approaches at Visalia Airport by the Scientific Aviation Mooney aircraft.

Select image to view full resolution

Ozone - June 4
View/Download the Ozone data ASCII file

Aerosol Backscatter
Aerosol Backscatter - June 4
View/Download the Aerosol Backscatter data ASCII file

in situ surface data
in situ surface data - June 4