Twin Otter Platform Info An important component of the 2006
experiment will be a differential absorption lidar (DIAL)
deployed on a NOAA Twin Otter aircraft for remote sensing of
local and regional ozone and aerosol distribution. Previous
field studies have benefitted greatly from airborne measurements
of ozone and aerosol profiles to characterize the
threedimensional structure of pollution plumes and measure
variability in mixing layer height (Alvarez et al, 1998, Senff
et al, 1998, Banta et al, 1998, Banta et al, 2005). Airborne
remote sensing enables tracking of plumes from urban areas and
point sources, identification of isolated regions and layers of
high ozone concentration, observations of atmospheric layering
as characterized by aerosol structure, and investigation of
local meteorological effects such as sea breezes and urban heat
islands on pollution transport and mixing. Inclusion of a remote
sensing aircraft will also provide information on the three-
dimensional representativeness of in situ observ