HYRAD

About HYRAD

HYRAD imageHYRAD is an advanced weather radar display system for PCs, providing real-time receipt of radar and other hydrometeorological products, database and archiving facilities, and a hydrological processing kernel for improved rainfall estimation and forecasting. It also assesses rainfall rarity. 

HYRAD is the standard radar display system for flood warning across England, Wales, Scotland, Northern Ireland and Belgium, providing:

  • real-time receipt of radar and other hydrometeorological products
  • database and archiving facilities 
  • a hydrological processing kernel for improved rainfall estimation and forecasting

The HYRAD kernel pre-processes radar data to remove residual anomalies. It also forms more accurate rainfall estimates by merging radar and raingauge data, and constructs rainfall forecasts.

Catchment average time-series can be produced for all products. These time-series can be displayed in total and cumulative form as a guide to flooding risk. HYRAD can also pass them through an automated interface to the Flow Forecasting and Modelling Systems used in flood warning.

The quality-assured software operates as a resilient Client-Server system capable of serving hundreds of clients.

 

Display of cumulative rainfall fields
Display of cumulative rainfall fields over minutes, hours, days and months

 

 
System monitoring of real-time data reception
System monitoring of real-time data reception
 
HYRAD images in multiple windows
Static and rapid display of images in multiple windows with zoom and pan

Functionality

HYRAD provides:

  • real-time reception of weather radar products and other space-time images. It conforms to a standard format protocol (e.g. fields of potential evaporation, soil moisture, runoff, weather prediction model forecasts of rainfall and temperature)
  • configurable inclusion of radar products, such as single-site radar, national and European composites. It handles different space-time resolutions and map projections
  • system monitoring of real-time data reception
  • an efficient database and archiving system
  • static and animated display of images in multiple windows and with zoom and pan
  • user-configured overlays and underlays providing geographical context information. These include raingauge locations, river networks, catchment boundaries and coastlines
  • display of cumulative product fields over minutes, hours, days and months
  • statistical analysis of product fields for a selected point, rectangle or catchment
  • rarity assessment of radar rainfall as a function of depth and duration
  • calculation of catchment average product time-series for display, as well as onward transmission to Flow Forecasting and Modelling Systems
  • a Hydrological Processing kernel providing:
    • radar pre-processing to correct for static anomalies and transient clutter
    • more accurate rainfall estimation by merging radar and rainfall data
    • radar rainfall forecasting
    • calculation of rainfall fields from raingauge data alone
  • a tool for creating composite or modified products by merging, averaging and cropping
  • an automated interface to Flow Forecasting and Modelling Systems

System architecture

A client-server architecture is used in which the data reception, database system, archiving and Radar Hydrology Kernel software typically runs on a Linux or Windows server machine. PCs running Microsoft Windows 7 or later are used to support the Graphical User Interface and visualisation facilities (the HYRAD Display Client). The HYRAD Display Client interfaces with the server using a sockets interface (typically the Internet protocol).

Downloading HYRAD

For further information on using HYRAD, please contact

Bob Moore
Centre for Ecology & Hydrology
Maclean Building
Benson Lane
Crowmarsh Gifford
Wallingford
Oxfordshire
OX10 8BB
T: +44 (0)1491 692262
F: +44 (0)1491 692424
E-mail: hyradsupport@ceh.ac.uk

top of page

Services: 

Science areas: 

Issues: