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Modeling of the Melting Layer. Part II: Electromagnetic
Publisher: American Meteorological Society
Abstract: To complement the meteorological modeling of the melting layer, a model of the scattering properties at microwave frequencies for snow, melting snow, and rain is implemented. The scattering model, running in tandem with a ...
Modeling of the Melting Layer. Part I: Dynamics and Microphysics
Publisher: American Meteorological Society
Abstract: To obtain the full description of the dynamical and microphysical finescale structures required for the computation of the radar-derived brightband parameters, a numerical model has been developed. A bulk microphysics ...
Snow Studies. Part III: Theoretical Derivations for the Ensemble Retrieval of Snow Microphysics from Dual-Wavelength Vertically Pointing Radars
Publisher: American Meteorological Society
Abstract: s a first step toward retrieval of snow microphysics from two vertically pointing radars operating at X band and W band, a theoretical model of snow microphysics is formulated in which the number of unknown parameters is ...
Snow Studies. Part IV: Ensemble Retrieval of Snow Microphysics from Dual-Wavelength Vertically Pointing Radars
Publisher: American Meteorological Society
Abstract: ased on the theory developed in Part III, this paper introduces a new method to retrieve snow microphysics from ground-based collocated X- and W-band vertically pointing Doppler radars. To take into account the variety of ...
Biogenic and Anthropogenic Sources of Ice-Forming Nuclei: A Review
Publisher: American Meteorological Society
Abstract: To develop theories and numerical models of the formation and microstructure of clouds and precipitation, it is necessary to identify the potential sources of ice nuclei in the atmosphere. However, the subject remains an ...
Snow Studies. Part II: Average Relationship between Mass of Snowflakes and Their Terminal Fall Velocity
Publisher: American Meteorological Society
Abstract: This study uses a dataset of low-density snow aggregates measurements collected by a ground-based optical disdrometer that provides particle size and terminal fall speed for each size interval from which the velocity?size ...
A Microphysical Bulk Formulation Based on Scaling Normalization of the Particle Size Distribution. Part I: Description
Publisher: American Meteorological Society
Abstract: The authors address the problem of optimization of the microphysical information extracted from a simulation system composed of high-resolution numerical models and multiparameter radar data or other available measurements. ...
A Microphysical Bulk Formulation Based on Scaling Normalization of the Particle Size Distribution. Part II: Data Assimilation into Physical Processes
Publisher: American Meteorological Society
Abstract: Microphysical schemes based on the scaling normalization of the particle size distribution (PSD) are cast into a variational data assimilation method to assess their ability to retrieve the precipitation structure and ...
Modeling of the Melting Layer. Part IV: Brightband Bulk Parameterization
Publisher: American Meteorological Society
Abstract: In this paper a simplified UHF-band backscattering parameterization for individual melting snowflakes is proposed. This parameterization is a function of the density, shape, and melted fraction, and is used here in a ...
A General Approach to Double-Moment Normalization of Drop Size Distributions
Publisher: American Meteorological Society
Abstract: Normalization of drop size distributions (DSDs) is reexamined here. First, an extension of the scaling normalization that uses one moment of the DSD as a scaling parameter to a more general scaling normalization that uses ...