학술논문
Rainfall Field Reconstruction by Opportunistic Use of the Rain-Induced Attenuation on Microwave Satellite Signals: The July 2021 Extreme Rain Event in Germany as a Case Study
Document Type
Conference
Author
Sapienza, Fabiola; Bacci, Giacomo; Giannetti, Filippo; Lottici, Vincenzo; Colicelli, Antonio; Vaccaro, Attilio; Gammone, Michele; Davini, Nicola; Picchi, Ottavio M.; Serafino, Giovanni; Caparrini, Francesca; Antonini, Andrea; Mazza, Alessandro; Melani, Samantha; Ortolani, Alberto; Adirosi, Elisa; Baldini, Luca; Rallo, Giovanni; Policelli, Frederick S.; Huffman, George J.
Source
2022 IEEE 2nd Ukrainian Microwave Week (UkrMW) Microwave Week (UkrMW), 2022 IEEE 2nd Ukrainian. :523-528 Nov, 2022
Subject
Language
Abstract
This paper presents a practical application of an opportunistic technique for the estimation of rainfall intensity and accumulated precipitation. The proposed technique is based upon signal strength measurements made by commercial-grade interactive satellite terminals. By applying some processing, the rain-induced attenuation on the microwave downlink from the satellite is first evaluated; then the rain attenuation is eventually mapped into a rainfall rate estimate via a tropospheric model. This methodology has been applied to a test area of 30 ×30 km 2 around the city of Dortmund (North Rhine-Westphalia, upper basin of Ermscher river), for the heavy rain event that devastated western Germany in July, 2021. A rainfall map on this area is obtained from the measurements collected by a set of satellite terminals deployed in the region, and successfully compared with a map obtained with a conventional weather radar.