CAMEX-4 CVI Cloud Condensed Water Content

The NCAR counterflow virtual impactor is an airborne instrument used to measure cloud particle/droplets of a size greater than about 8 microns in diameter, and cloud condensation nuclei (CCN) by using a counter flow stream of dry nitrogen gas out of the tip of the probe. This flow is sufficiently strong to displace particles/droplets of smaller diameter. Once through the probe, water vapor and residual nonvolatile materials (CCN) are sampled and measured.

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(DATA AVAILABLE FOR 6,7,8,and 10 Sept 2001)


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