Final technical Report DE-FG02-06ER65187

Technical Report · Fri Jul 17 00:00:00 EDT 2009

DOI:https://doi.org/10.2172/959345· OSTI ID:959345

Eloranta, Edwin

Simulations from the University of Wisconsin Non-Hydrostatic Modeling System (UW-NMS) along with those from other models indicate a strong tendency to overproduce ice, resulting in a decimation of the liquid portion of mixed-phase stratus through the Bergeron-Findeissen process. Immersion freezing was illustrated to be a major contributor to ice production within these cloud layers, and aerosol properties were illustrated to be an important consideration in the simulation of this process. In particular, the soluble mass fraction and aerosol insoluble mass type were demonstrated to influence simulation of the immersion freezing process, Data collected by the Arctic High Spectral Resolution Lidar and Millimeter Cloud Radar during the M-PACE period was analyzed in order to provide a statistical dataset for validation of simulations of mixed-phase stratus. 270 hours of single-layer cases were reviewed, and mean values for cloud base height, cloud thickness, cloud optical thickness, cloud temperature, wind direction, and liquid and ice particle size, particle number density, and water content were derived.

• Research Organization: Board of Regents of the University of Wisconsin System
• Sponsoring Organization: DOE, Chicago operations office
• DOE Contract Number: FG02-06ER64187
• OSTI ID: 959345
• Report Number(s): DOEER64187-3 Final Report; TRN: US1003925
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
22 GENERAL STUDIES OF NUCLEAR REACTORS
AEROSOLS
BASES
DATA
DENSITY
FREEZING
HEIGHT
LIQUIDS
MASS
OPTICAL RADAR
ORDERS
PARTICLE SIZE
PARTICLES
PRODUCTION
RADAR
RESOLUTION
SIMULATION
THICKNESS
VALIDATION
WIND
WISCONSIN
Cloud model validation
High Spectral Resolution Lidar
ice nucleation