During my dissertation research, I worked with Dr. Terry Desher to measure Cloud Condensation Nuclei (CCN) number concentration.  The research objective was to obtain high-vertical resolution profiles of CCN concentration from the surface to 200 mb and relate these measurements to concurrent measurements of condensation nuclei, optical aerosols, and meteorological conditions.  The uncertain in CCN mesurements, made with the balloon-borne CCN counter, was determined.  Several vertical profiles of CCN concentration were obtained at Laramie, Wyoming and two profiles obtained at Lauder, New Zealand.  Videos were made of the 22 January and 3 February operations.

Dissertation Related Publications

Delene, D. J. and T. Deshler, Vertical profiles of cloud condensation nuclei above Wyoming, Journal of Geophysical Research - Atmospheres , 106, 12579-12588, 2001. (Abstract, Manuscript, PDF)

Delene, D. J., T. Deshler, P. Wechsler, and G. A. Vali, A balloon-borne cloud condensation nuclei counter, Journal of Geophysical Research - Atmospheres, 103, 8927-8934, 1998. (Abstract, Manuscript, PDF)

Related Research Research related to cloud condensation nuclei. 
David J. Delene's Research Home Page