Testing a CCN Remote Sensing Method
Ghan, S.(a), Rissman, T.(b), Elleman, R.(c), Covert, D.(c), Ferrare, R.(d), and Turner, D.D.(a), Pacific Northwest National Laboratory (a), California Institute of Technology (b), University of Washington (c), NASA Langley (d)
Conditional sampling of aircraft and remote sensing data during the 2002 ARM aerosol IOP is used to test the use of aerosol extinction and 180 degree backscatter profiles (adjusted to dry conditions) to scale surface measurments of cloud condensation nuclei concentration. Vertical profiles of CCN concentration are found to correlate well with in situ measurements of dry extinction, but not with extinction or backscatter measured by Raman lidar. Humidification does not appear to be the cause of the poor correlation.
Note: This is the poster abstract presented at the meeting; an extended version was not provided by the author(s).