Aspect sensitivity of VHF scatterers in the troposphere and stratosphere from comparisons of powers in off-vertical beams |
| |
| Institution: | 1. Grupo de Ecología y Fisiología de Fitoplancton, Sección Limnología, Facultad de Ciencias, Universidad de la República, Iguá 4225, 11400 Montevideo, Uruguay;2. Polo de Desarrollo Universitario, Ecología Funcional de Sistemas Acuáticos, Centro Universitario Regional del Este, Universidad de la República, Ruta 9 y Ruta 15, Rocha, Uruguay;1. Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Andalas, Padang, Indonesia;2. Department of Earth Sciences and Environment, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Selangor, Malaysia;3. Agency for Meteorology, Climatology and Geophysics of Republic Indonesia, Jakarta, Indonesia |
| |
| Abstract: | The aspect sensitivity of the radar backscatter power at 46.5 MHz has been examined for the troposphere and lower stratosphere. Use is made of the width of the effective backscatter polar diagram, assumed to be Gaussian, derived from the ratios of signal strength for different pairs of beam directions in order to distinguish between anisotropic and isotropic scattering. The results are used to examine the relative contributions of isotropic scatter, anisotropic scatter, and Fresnel reflection or scatter to the signal backscattered in the vertical direction. Furthermore, the change in the scattering characteristics during the passage of a warm front is examined. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
