September 13, 2007
Partly cloudy
It was partly cloudy today. The clouds capped boundary layer extended to ~1.5km. The hourly PM 2.5 concentrations in the range of 17.6 to 39.7 ug/m3 were recorded at the Oldtown site during ELF’s operation. The aerosol optical depth was ~0.2 from the AERONET site, MD Science Center.
