Andreas Persson

Andreas Persson

Senior lecturer

Andreas Persson

Evaluation of a new X-band weather radar for operational use in south Sweden

Author

  • Hasan Hosseini
  • Hossein Hashemi
  • Ronny Berndtsson
  • Nicholas South
  • Henrik Aspegren
  • Rolf Larsson
  • Jonas Olsson
  • Andreas Persson
  • Lisa Olsson

Summary, in English

The performance of a new type of X-band Weather Radar (WR) for Sweden during a pilot run is studied. Compared to the conventional C-band WRs, the X-band WR covers a smaller area but with a higher spatiotemporal resolution, making it suitable for urban hydrological applications. Rainfall estimations from different elevation angles of the radar (levels) are compared at one-minute and single-event timescales with the observations of several rain gauges at different ranges using hyetographs. In general, the estimations aligned well with observations and the best match appeared for ranges as long as 5–10 km. Seemingly, radar estimations suffered from overshooting of lower lying showers by higher level scans in longer ranges (19–30 km) and from the reflectivity contamination due to moving objects in short ranges (<1 km). Also, the effective range of the radar dropped sharply for the moments when a cloudburst was located over the radar. Although various sources of error could affect the X-band WR rainfall estimates, higher resolution spatiotemporal rainfall monitoring for wider areas will benefit from an integration of data from a network of X-band WRs.

Department/s

  • Division of Water Resources Engineering
  • Centre for Advanced Middle Eastern Studies
  • MECW: The Middle East in the Contemporary World
  • Department of Chemical Engineering
  • Centre for Geographical Information Systems (GIS Centre)
  • Dept of Physical Geography and Ecosystem Science

Publishing year

2020-02-18

Language

English

Pages

1623-1635

Publication/Series

Water Science and Technology

Volume

81

Issue

8

Document type

Journal article

Publisher

IWA Publishing

Topic

  • Remote Sensing

Status

Published

ISBN/ISSN/Other

  • ISSN: 0273-1223