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Selected Comments on the Use of the Divergence Equation to Obtain Temperature and Geopotentials from an Observed Wind
Publisher: American Meteorological Society
Abstract: Recent suggestions to use the full divergence equation and nearly continuous (in time) wind observations to retrieve the geopotential and temperature of large-scale and mesoscale (but still hydrostatic) phenomena are ...
A Theory for the Retrievals of Virtual Temperature from Remote Measurements of Horizontal Winds and Thermal Radiation
Publisher: American Meteorological Society
Abstract: This paper develops a theory for the estimation of virtual temperature from remote measurements of (i) emitted thermal radiation by microwave and infrared radiometers and (ii) horizontal winds by Doppler radars (or lidars). ...
Errors in Fixed and Moving Frame of References: Applications for Conventional and Doppler Radar Analysis
Publisher: American Meteorological Society
Abstract: Procedures for the estimation and correction of advection effects with single and multiple conventional and Doppler radars are developed. In the case of scalars or Cartesian vectors, the essence of the method is finding a ...
A Method for the Initialization of the Anelastic Equations: Implications for Matching Models with Observations
Publisher: American Meteorological Society
Abstract: An algorithm is proposed, whereby the combined use of the equations of cloud dynamics, and the observed wind, will permit a unique determination of the density and pressure fluctuations. The algorithm has several unique ...
A Study of the Convective Boundary-Layer Dynamics Using Single Doppler Radar Measurements
Publisher: American Meteorological Society
Abstract: The kinematic and dynamical properties of the convective planetary boundary layer (CBL) with shear are studied using single Doppler radar measurements. The data were collected using single K-band (0.87 cm) Doppler radar ...
Single-Doppler Wind Retrieval in the Moving Frame of Reference
Publisher: American Meteorological Society
Abstract: A single Doppler radar analysis scheme is developed, and three-dimensional wind fields am retrieved from single Doppler radar reflectivity and radial velocity fields. The retrieval is based on two assumptions: 1) the ...
A Numerical Study of Collision Efficiencies and Coalescence Parameters for Droplet Pairs with Radii up to 300 Microns
Publisher: American Meteorological Society
Abstract: Numerical computations of collision efficiencies and certain coalescence parameters are presented for droplet pairs with Reynolds numbers up to 104. This corresponds to radii (for 900 mb, 0C) of up to 300 ?. The superposition ...
Effects of Volume Averaging on the Line Spectra of Vertical Velocity from Multiple-Doppler Radar Observations
Publisher: American Meteorological Society
Abstract: We examine the fidelity of one-dimensional spectra of vertical velocity derived from multiple-Doppler radar observations. For analytical tractability, we use the following assumptions: 1) the turbulent atmosphere has ...
Can Dryline Mixing Create Buoyancy?
Publisher: American Meteorological Society
Abstract: Thermodynamic analysis indicates, in contradiction to an earlier hypothesis, that a mixture of warm, dry air and cool, moist air on opposite sides of a dryline will have a slightly lower virtual temperature than the average ...