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A Simple Adjoint Method of Wind Analysis for Single-Doppler Data
Publisher: American Meteorological Society
Abstract: A simple adjoint method is developed for retrieving the time-mean winds from a number of consecutive single-Doppler measurements. The method assumes the Lagrangian conservation of reflectivity. Previous methods based on ...
Least Squares Retrieval of Microburst Winds from Single-Doppler Radar Data
Publisher: American Meteorological Society
Abstract: A least squares (LS) method is developed for retrieving low-altitude winds from single-Doppler radar scans. The method is tested with Denver airport microburst data and the results compared with the previously developed ...
Simple Adjoint Methods for Single-Doppler Wind Analysis with a Strong Constraint of Mass Conservation
Publisher: American Meteorological Society
Abstract: Three schemes are developed to incorporate a strong constraint of (incompressible) mass conservation into the basic scheme (scheme B) of the simple adjoint method of Qiu and Xu for retrieving the time-mean wind field from ...
A Spectral Simple Adjoint Method for Retrieving Low-Altitude Winds from Single-Doppler Data
Publisher: American Meteorological Society
Abstract: A spectral simple adjoint (SSA) method for retrieving, low-attitude time-mean horizontal winds from single-Doppler wind measurements is developed and tested with the Phoenix II held experimental data. The SSA method is ...
A Variational Method for Computing Surface Heat Fluxes from ARM Surface Energy and Radiation Balance Systems
Publisher: American Meteorological Society
Abstract: A variational method is developed to compute surface fluxes of sensible and latent heat from observed wind, temperature, humidity, and surface energy and radiation budget by the surface energy and radiation balance systems ...
Adjoint-Method Retrievals of Low-Altitude Wind Fields from Single-Doppler Reflectivity and Radial-Wind Data
Publisher: American Meteorological Society
Abstract: The simple adjoint (SA) method is extended to use both the reflectivity equation and the radial-wind equation to retrieve the low-altitude horizontal wind field from single-Doppler reflectivity and radial-wind data. Three ...
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Publisher: American Meteorological Society
Is the Mass Sink Due to Precipitation Negligible?
Publisher: American Meteorological Society
Abstract: The significance of mass sinks (or sources) due to precipitation (or evaporation) is examined using numerical experiments performed with the Pennsylvania State University-National Center for Atmospheric Research Mesoscale ...
Adjoint-Method Retrievals of Low-Altitude Wind Fields from Single-Doppler Reflectivity Measured during Phoenix II
Publisher: American Meteorological Society
Abstract: The simple adjoint method of Qiu and Xu is upgraded and tested with the Phoenix II data for retrieving the low-altitude winds from the movements of reflectivity patterns measured by a single-Doppler radar. The upgraded ...
Adjoint-Method Retrievals of Low-Altitude Wind Fields from Single-Doppler Wind Data
Publisher: American Meteorological Society
Abstract: The simple adjoint method of Qiu and Xu is extended and used to retrieve the low-altitude horizontal wind field from single-Doppler radial wind data measured during the Phoenix II field experiment. Since the extended method ...