September 25, 2007
got hazier
Today was hazier than the last two days. The boundary layer increased from ~0.5km(14:00UTC) to ~1.5km(20:00UTC) and merged the residue layer, which extended at ~ 1.7km. The aerosol optical depth was ~0.2 from the AERONET site, MD Science Center. The Oldtown site was down today, so there was no PM2.5 data.
