Analysis of Snow Water Equivalent (Swe) of Snowpack by An Ultra Wide Band Step Frequency Continuous Wave Radar (Sfcw)
Autor: | Jose Maria Garcia del Pozo, Jose Adolfo alvarez, Samuel T. Buisan, Rafael Alonso, Ismael Peruga |
---|---|
Jazyk: | angličtina |
Rok vydání: | 2020 |
Předmět: |
020208 electrical & electronic engineering
Ultra-wideband 020206 networking & telecommunications 02 engineering and technology Snowpack Snow Signal law.invention Continuous-wave radar law 0202 electrical engineering electronic engineering information engineering Range (statistics) Radar Geology Remote sensing Matrix method |
Zdroj: | Zaguán: Repositorio Digital de la Universidad de Zaragoza Universidad de Zaragoza Zaguán. Repositorio Digital de la Universidad de Zaragoza instname |
Popis: | A ground-based step frequency continuous wave radar (SFCW), based in a software defined radio (SDR), in the range from 150MHz to 6GHz has been designed, fabricated and tested under real conditions. The radar has been applied to measure the snow water equivalent (SWE) of snowpack in the Spanish Pyrenees. A matrix method is applied to solve the electromagnetic reflectance of multilayer cover snow including frequency and wetness dependence of complex relative dielectric permittivity of snow layers. An approximated method to obtain SWE is presented. The method is based on the comparison of measured reflected signal vs distance plot with the calculated with an ''equivalent'' snow layer. Preliminary results are presented and compared with those provided by a cosmic-ray neutron SWE gauge over the 2019 winter. These results suggest the viability of the proposed method. |
Databáze: | OpenAIRE |
Externí odkaz: |