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Freezing Drizzle Formation in Stably Stratified Layer Clouds. Part II: The Role of Giant Nuclei and Aerosol Particle Size Distribution and Solubility
Publisher: American Meteorological Society
Abstract: This paper investigates how the characteristics of aerosol particles (size distribution and solubility) as well as the presence of giant nuclei affect drizzle formation in stably stratified layer clouds. A new technique ...
Process-Oriented Analysis of Environmental Conditions Associated with Precipitation Fog Events in the New York City Region
Publisher: American Meteorological Society
Abstract: An analysis of the environmental conditions associated with precipitation fog events is presented using 20 yr of historical observations taken in a region centered on New York, New York. The objective is to determine the ...
Evaporation of Nonequilibrium Raindrops as a Fog Formation Mechanism
Publisher: American Meteorological Society
Abstract: To gain insights into the poorly understood phenomenon of precipitation fog, this study assesses the evaporation of freely falling drops departing from equilibrium as a possible contributing factor to fog formation in rainy ...
Event-Based Climatology and Typology of Fog in the New York City Region
Publisher: American Meteorological Society
Abstract: The character of fog in a region centered on New York City, New York, is investigated using 20 yr of historical data. Hourly surface observations are used to identify fog events at 17 locations under the influence of various ...
On the Dynamics of Hawaiian Cloud Bands: Comparison of Model Results with Observations and Island Climatology
Publisher: American Meteorological Society
Abstract: This paper presents a detailed comparison study of three-dimensional model results with an aircraft wind field mapping for the island of Hawaii. Model runs were initialized using an aircraft sounding from 1 August 1985, ...
Hail Growth Hysteresis
Publisher: American Meteorological Society
Abstract: The transition between wet and dry growth for graupel and hail is examined, and new figures are presented illustrating the critical water contents necessary for transitions into or out of the wet-growth regime. These figures ...
On the Dynamics of Hawaiian Cloud Bands. Part III: Local Aspects
Publisher: American Meteorological Society
Abstract: This paper extends our earlier discussion of the flow past the island of Hawaii and the accompanying cloud band to smaller-scale effects occurring on the scale of the Hilo Bay region. The evolution of cloud bands forming ...
Evaluation of Orographic Cloud Seeding Using a Bin Microphysics Scheme: Two-Dimensional Approach
Publisher: American Meteorological Society
Abstract: new version of a bin microphysical scheme implemented into the Weather Research and Forecasting (WRF) Model was used to study the effect of glaciogenic seeding on precipitation formation in orographic clouds. The tracking ...
Melting and Shedding of Graupel and Hail. Part I: Model Physics
Publisher: American Meteorological Society
Abstract: A detailed model of the melting, shedding, and wet growth of spherical graupel and hail is presented. This model is based upon recent experimental studies by Rasmussen et al. and Lesins et al. The model is presented in the ...
Melting and Shedding of Graupel and Hail. Part II: Sensitivity Study
Publisher: American Meteorological Society
Abstract: A sensitivity study on the melting and shedding behavior of individual graupel and hail is presented utilizing the detailed microphysical model presented in Part I. The influence of particle density and size, atmospheric ...