IMPROVED COUPLED Z-R AND K-R RELATIONS AND THE RESULTING AMBIGUITIES IN THE DETERMINATION OF THE VERTICAL-DISTRIBUTION OF RAIN FROM THE RADAR BACKSCATTER AND THE INTEGRATED ATTENUATION

Citation
Zs. Haddad et al., IMPROVED COUPLED Z-R AND K-R RELATIONS AND THE RESULTING AMBIGUITIES IN THE DETERMINATION OF THE VERTICAL-DISTRIBUTION OF RAIN FROM THE RADAR BACKSCATTER AND THE INTEGRATED ATTENUATION, Journal of applied meteorology, 34(12), 1995, pp. 2680-2688
Citations number
11
Categorie Soggetti
Metereology & Atmospheric Sciences
ISSN journal
08948763
Volume
34
Issue
12
Year of publication
1995
Pages
2680 - 2688
Database
ISI
SICI code
0894-8763(1995)34:12<2680:ICZAKR>2.0.ZU;2-8
Abstract
Several algorithms to calculate a rain-rate profile from a single-freq uency air- or spaceborne radar backscatter profile and a given path-in tegrated attenuation have been proposed. The accuracy of any such algo rithm is limited by the ambiguities between the (multiple) exact solut ions, which depend on the variability of the parameters in the Z-R and k-R relations used. In this study, coupled Z-R and k-R relations are derived based on the drop size distribution. It is then shown that, be cause of the coupling, the relative difference between the multiple mu tually ambiguous rain-rate profiles solving the problem must remain ac ceptably low, provided the available path-integrated attenuation value is known to within 0.5 dB.