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Title: Laboratory Investigation of Contact Freezing and the Aerosol to Ice Crystal Transformation Process

This project has been focused on the following objectives: 1. Investigations of the physical processes governing immersion versus contact nucleation, specifically surface-induced crystallization; 2. Development of a quadrupole particle trap with full thermodynamic control over the temperature range 0 to –40 °C and precisely controlled water vapor saturation ratios for continuous, single-particle measurement of the aerosol to ice crystal transformation process for realistic ice nuclei; 3. Understanding the role of ice nucleation in determining the microphysical properties of mixed-phase clouds, within a framework that allows bridging between laboratory and field measurements.
Authors:
 [1]
  1. Michigan Technological Univ., Houghton, MI (United States)
Publication Date:
OSTI Identifier:
1162184
Report Number(s):
DOE-MTU--0006949
DOE Contract Number:
SC0006949
Resource Type:
Technical Report
Research Org:
Michigan Technological University, Houghton, MI (United States)
Sponsoring Org:
USDOE Office of Science (SC), Biological and Environmental Research (BER) (SC-23)
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; CLOUDS; NUCLEATION; ICE Clouds; Nucleation; Ice