Flying into the wind through a series of 5 wave clouds. Flight altitude 4.5 km. FSSP trace shows where water droplet clouds were encountered.
Updraft was 90deg out of phase with other data, as expected. Sequence suggests processes and results are quite repeatable, although there is some indication that fewer ice particles formed on the downwind (left) end of the series.
2D-C ice concentrations ~0.1-3/L whereas 260x measured ~1-20/L. This discrepancy is due to the 2D-C‘s low detection efficiency for particles smaller than ~100um.
Temperature of IN measurements was a few degrees colder than cloud. Sample SSw 5-6%. Ice nuclei ~5-20/L and show decrease downwind.