All Time Past Year Past 30 Days
Abstract Views 0 0 0
Full Text Views 31 9 2
PDF Downloads 9 0 0

Effect of Topology of Water-Ice Mixture on Radar Backscattering by Hailstones

Peter ChýlekDepartment of Physics and Oceanography, Dalhousie University, Halifax, Nova Scotia, Canada

Search for other papers by Peter Chýlek in
Current site
Google Scholar
PubMed
Close
,
R. G. PinnickAtmospheric Science Laboratory, White Sands Missile Range, New Mexico

Search for other papers by R. G. Pinnick in
Current site
Google Scholar
PubMed
Close
, and
V. SrivastavaUniversities Space Research Association, Huntsville, Alabama

Search for other papers by V. Srivastava in
Current site
Google Scholar
PubMed
Close
Restricted access

Abstract

The radar backscattering cross sections of spongy hailstones are considerably influenced by the topological structure of the water-ice mixture. Observational evidence suggests that such an inhomogeneous composite medium can consist of regions of different topologies. We investigate three different kinds of topologies and derive a general mixed topology mixing rule (MTMR). The mixed topology rule is used to calculate the effective dielectric constant of spongy ice as a function of its liquid-water content. This leads to predictions of backscatter cross sections that are in good agreement with measurement.

Abstract

The radar backscattering cross sections of spongy hailstones are considerably influenced by the topological structure of the water-ice mixture. Observational evidence suggests that such an inhomogeneous composite medium can consist of regions of different topologies. We investigate three different kinds of topologies and derive a general mixed topology mixing rule (MTMR). The mixed topology rule is used to calculate the effective dielectric constant of spongy ice as a function of its liquid-water content. This leads to predictions of backscatter cross sections that are in good agreement with measurement.

Save