contributor author | Shapiro, Alan | |
contributor author | Willingham, Katherine M. | |
contributor author | Potvin, Corey K. | |
date accessioned | 2017-06-09T16:34:30Z | |
date available | 2017-06-09T16:34:30Z | |
date copyright | 2010/11/01 | |
date issued | 2010 | |
identifier issn | 0022-4928 | |
identifier other | ams-70258.pdf | |
identifier uri | http://onlinelibrary.yabesh.ir/handle/yetl/4212019 | |
description abstract | Radar data?based analysis products, such as accumulated rainfall maps, dual-Doppler wind syntheses, and thermodynamic retrievals, are prone to substantial error if the temporal sampling interval is too coarse. Techniques to mitigate these errors typically make use of advection-correction procedures (space-to-time conversions) in which the analyzed radial velocity or reflectivity field is idealized as a pattern of unchanging form that translates horizontally at constant speed. The present study is concerned with an advection-correction procedure for the reflectivity field in which the pattern-advection components vary spatially. The analysis is phrased as a variational problem in which errors in the frozen-turbulence constraint are minimized subject to smoothness constraints. The Euler?Lagrange equations for this problem are derived and a solution is proposed in which the trajectories, pattern-advection fields, and reflectivity field are analyzed simultaneously using a combined analytical and numerical procedure. The potential for solution nonuniqueness is explored. | |
publisher | American Meteorological Society | |
title | Spatially Variable Advection Correction of Radar Data. Part I: Theoretical Considerations | |
type | Journal Paper | |
journal volume | 67 | |
journal issue | 11 | |
journal title | Journal of the Atmospheric Sciences | |
identifier doi | 10.1175/2010JAS3465.1 | |
journal fristpage | 3445 | |
journal lastpage | 3456 | |
tree | Journal of the Atmospheric Sciences:;2010:;Volume( 067 ):;issue: 011 | |
contenttype | Fulltext | |