October 4, 2007
clear and humid
Today was clear and humid with scattered high clouds. The hourly PM 2.5 concentrations in the range of 24 to 37 ug/m3 were recorded at the Oldtown site during ELF’s operation. The aerosol optical depth was ~0.15 from the AERONET site, MD Science Center. The aloft layer at ~2km was from the west of UMBC from HYSPLIT.
