On the application of MUSCAT to a ground-baseddual-Doppler radar system |
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| Authors: | M Chong O Bousquet |
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| Institution: | (1) Centre National de Recherches Météorologiques CNRS and Météo-France, Toulouse, France, FR;(2) Department of Atmospheric Sciences, University of Washington, Seattle, Washington, US |
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| Abstract: | Summary
The multiple-Doppler synthesis and continuity adjustment technique (MUSCAT), developed for at least a pair of Doppler observations,
is based on both a simultaneous resolution of the equations relating the wind components to the measured radial velocities
and of the continuity equation, and the use of second-order derivatives in the cost function. It has been developed to solve
the geometrical limitations that result from a dual-Doppler radar configuration, and has been successfully applied to airborne
radar equipped for a fore-aft scanning. This paper intends to show the performance of this method in the case of a differing
geometry from a ground-based dual-Doppler radar system, using simulated Doppler data deduced from an analytical wind field.
It is shown that the constraint on the second-order derivatives allows to also obtain reliable wind vectors outside the Doppler
lobes, i.e., in regions along the radar baseline where ill-conditioned analysis occurs.
Received February 14, 2000/Revised April 4, 2001 |
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