Rain Drop Shapes and Scattering Calculations: A Case Study Using 2D Video Disdrometer Measurements and Polarimetric Radar Observations at S-Band During Hurricane Dorian Rain-Bands

Merhala Thurai, Sophie Steger, Franz Teschl, Michael Schönhuber, David Wolff

Research output: Chapter in Book/Report/Conference proceedingConference paperpeer-review

Abstract

On 9 September 2019, rain-bands of category-1 Hurricane Dorian passed over a ground instrumentation site in Delmarva peninsula, USA. Drop shapes derived from 2D Video Disdrometer measurements at this site were used to compute the S-band radar cross sections (RCS) for horizontal and vertical polarizations for each drop with equi-volume diameter > 2 mm. These are combined with RCS for the smaller drops assuming equilibrium shapes. Radar reflectivity (ZH) and differential reflectivity (ZDR) are calculated for each of the 3 minutes throughout the event which lasted for more than 8 hours. These are compared with simultaneous observations from an S-band polarimetric radar 38 km away. The comparisons highlight the impact of large amplitude drop oscillations on ZDR.

Original languageEnglish
Title of host publicationEuropean Conference on Antennas and Propagation (EuCAP 2021), Proceedings
Pages1-5
Number of pages5
ISBN (Electronic)9788831299022
DOIs
Publication statusPublished - 2021
Event15th European Conference on Antennas and Propagation : EucAP 2021 - Virtuell, Germany
Duration: 22 Mar 202126 Mar 2021

Conference

Conference15th European Conference on Antennas and Propagation
Abbreviated titleEucAP 2021
CountryGermany
CityVirtuell
Period22/03/2126/03/21

Keywords

  • 2D video disdrometer
  • differential reflectivity
  • rain drop shapes
  • S-band radar reflectivity

ASJC Scopus subject areas

  • Signal Processing
  • Instrumentation
  • Computer Networks and Communications

Fields of Expertise

  • Information, Communication & Computing

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