July 28, 2007
CALIPSO overpass
There are scattered storms from yesterday till this earlier morning. Then it is partly cloudy. It is hazy and humid all day. The hourly PM 2.5 concentrations in the range of 16.3 to 36.5 ug/m3 are recorded at Maryland's Department of the Environment Oldtown site in Baltimore during ELF's operation. The aerosol optical depth is around 0.6 from AERONET, MD science center.
