Abstract: A continuous, automatic, and portable instrument was developed for detecting and counting ice nuclei in the field and laboratory. The nuclei are activated in a cloud chamber and the resulting ice crystals are counted by ...

Abstract: tract

Abstract: The NCAR acoustical ice nucleus counter was calibrated against a Bigg-Warner Weather Bureau type chamber modified as a mixing chamber. The mixing chamber was in turn calibrated against the CSU-NSF isothermal diffusion cloud ...