Scattering Calculations for Various Hailstone Models Using the Extended Boundary Condition Method
Abstract
This thesis determines the scattering characteristics of single, resonance sized, axisymmetric hailstone models using the Extended Boundary Condition Method (EBCM). The EBCM is applied to three-dimensional electromagnetic scattering problems involving hailstones modeled using Wang's three parameter hailstone representation. The theory of the EBCM is presented for axisymmetric, layered dielectric scatterers. Scattering calculations are graphically presented for various layered and nonlayered hailstone models for incident wavelengths of 1 and 10 cm. The layered hailstone models are constructed of ice surrounded by a layer of water and represent melting hailstones. Nonlayered hailstone models represent nonmelting hailstones and are composed entirely of ice. Hailstone size, shape, and structure were varied to determine their effect on scattering and absorption characteristics. The results indicate that resonance scattering is very sensitive to hailstone size, shape, and structure. Rayleigh scattering is sensitive to size and structure but much less dependent on hailstone shape. Keywords: Hydrometeors; Atmospheric precipitation; Millimeter wave satellite-to-earth communication links; Computerized simulation. Theses
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1988
- Accession Number
- ADA203048
Entities
People
- Brian J. Stutz
Organizations
- Air Force Institute of Technology